/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Copyright by The HDF Group.                                               *
 * Copyright by the Board of Trustees of the University of Illinois.         *
 * All rights reserved.                                                      *
 *                                                                           *
 * This file is part of HDF5.  The full HDF5 copyright notice, including     *
 * terms governing use, modification, and redistribution, is contained in    *
 * the files COPYING and Copyright.html.  COPYING can be found at the root   *
 * of the source code distribution tree; Copyright.html can be found at the  *
 * root level of an installed copy of the electronic HDF5 document set and   *
 * is linked from the top-level documents page.  It can also be found at     *
 * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
 * access to either file, you may request a copy from help@hdfgroup.org.     *
 * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */

/***********************************************************
*
* Test program:	 tselect
*
* Test the Dataspace selection functionality
*
*************************************************************/

#define H5S_PACKAGE		/*suppress error about including H5Spkg	  */

/* Define this macro to indicate that the testing APIs should be available */
#define H5S_TESTING

#include "testhdf5.h"
#include "hdf5.h"
#include "H5Spkg.h"		/* Dataspaces				*/

#define FILENAME   "tselect.h5"

/* 3-D dataset with fixed dimensions */
#define SPACE1_NAME  "Space1"
#define SPACE1_RANK	3
#define SPACE1_DIM1	3
#define SPACE1_DIM2	15
#define SPACE1_DIM3	13

/* 2-D dataset with fixed dimensions */
#define SPACE2_NAME  "Space2"
#define SPACE2_RANK	2
#define SPACE2_DIM1	30
#define SPACE2_DIM2	26
#define SPACE2A_RANK	1
#define SPACE2A_DIM1	(SPACE2_DIM1*SPACE2_DIM2)

/* 2-D dataset with fixed dimensions */
#define SPACE3_NAME  "Space3"
#define SPACE3_RANK	2
#define SPACE3_DIM1	15
#define SPACE3_DIM2	26

/* 3-D dataset with fixed dimensions */
#define SPACE4_NAME  "Space4"
#define SPACE4_RANK	3
#define SPACE4_DIM1	11
#define SPACE4_DIM2	13
#define SPACE4_DIM3	17

/* Number of random hyperslabs to test */
#define NHYPERSLABS 10

/* Number of random hyperslab tests performed */
#define NRAND_HYPER 100

/* 5-D dataset with fixed dimensions */
#define SPACE5_NAME  "Space5"
#define SPACE5_RANK	5
#define SPACE5_DIM1	10
#define SPACE5_DIM2	10
#define SPACE5_DIM3	10
#define SPACE5_DIM4	10
#define SPACE5_DIM5	10

/* 1-D dataset with same size as 5-D dataset */
#define SPACE6_RANK	1
#define SPACE6_DIM1	(SPACE5_DIM1*SPACE5_DIM2*SPACE5_DIM3*SPACE5_DIM4*SPACE5_DIM5)

/* 2-D dataset with easy dimension sizes */
#define SPACE7_NAME  "Space7"
#define SPACE7_RANK	2
#define SPACE7_DIM1	10
#define SPACE7_DIM2	10
#define SPACE7_FILL     254
#define SPACE7_CHUNK_DIM1 5
#define SPACE7_CHUNK_DIM2 5
#define SPACE7_NPOINTS  8

/* 4-D dataset with fixed dimensions */
#define SPACE8_NAME  "Space8"
#define SPACE8_RANK	4
#define SPACE8_DIM1	11
#define SPACE8_DIM2	13
#define SPACE8_DIM3	17
#define SPACE8_DIM4	19

/* Another 2-D dataset with easy dimension sizes */
#define SPACE9_RANK	2
#define SPACE9_DIM1	12
#define SPACE9_DIM2	12

/* Element selection information */
#define POINT1_NPOINTS 10

/* Chunked dataset information */
#define DATASETNAME "ChunkArray"
#define NX_SUB   87                     /* hyperslab dimensions */
#define NY_SUB   61
#define NZ_SUB  181
#define NX       87                     /* output buffer dimensions */
#define NY       61
#define NZ      181
#define RANK_F     3                    /* File dataspace rank */
#define RANK_M     3                    /* Memory dataspace rank */
#define X    87                         /* dataset dimensions */
#define Y    61
#define Z   181
#define CHUNK_X   87                    /* chunk dimensions */
#define CHUNK_Y   61
#define CHUNK_Z  181

/* Basic chunk size */
#define SPACE10_DIM1    180
#define SPACE10_CHUNK_SIZE 12

/* Information for bounds checking test */
#define SPACE11_RANK	2
#define SPACE11_DIM1    100
#define SPACE11_DIM2    100
#define SPACE11_NPOINTS 4

/* Information for offsets w/chunks test #2 */
#define SPACE12_RANK	        1
#define SPACE12_DIM0            25
#define SPACE12_CHUNK_DIM0      5

/* Information for Space rebuild test */
#define SPACERE1_RANK            1
#define SPACERE1_DIM0            20
#define SPACERE2_RANK            2
#define SPACERE2_DIM0            8
#define SPACERE2_DIM1            12
#define SPACERE3_RANK            3
#define SPACERE3_DIM0            8
#define SPACERE3_DIM1            12
#define SPACERE3_DIM2            8
#define SPACERE4_RANK            4
#define SPACERE4_DIM0            8
#define SPACERE4_DIM1            12
#define SPACERE4_DIM2            8
#define SPACERE4_DIM3            12
#define SPACERE5_RANK            5
#define SPACERE5_DIM0            8
#define SPACERE5_DIM1            12
#define SPACERE5_DIM2            8
#define SPACERE5_DIM3            12
#define SPACERE5_DIM4            8

/* #defines for shape same / different rank tests */
#define SS_DR_MAX_RANK		5

/* Information for regular hyperslab query test */
#define SPACE13_RANK	3
#define SPACE13_DIM1    50
#define SPACE13_DIM2    50
#define SPACE13_DIM3    50
#define SPACE13_NPOINTS 4


/* Location comparison function */
static int compare_size_t(const void *s1, const void *s2);

static herr_t test_select_hyper_iter1(void *elem,hid_t type_id, unsigned ndim, const hsize_t *point, void *operator_data);
static herr_t test_select_point_iter1(void *elem,hid_t type_id, unsigned ndim, const hsize_t *point, void *operator_data);
static herr_t test_select_all_iter1(void *elem,hid_t type_id, unsigned ndim, const hsize_t *point, void *operator_data);
static herr_t test_select_none_iter1(void *elem,hid_t type_id, unsigned ndim, const hsize_t *point, void *operator_data);
static herr_t test_select_hyper_iter2(void *_elem, hid_t type_id, unsigned ndim, const hsize_t *point, void *_operator_data);
static herr_t test_select_hyper_iter3(void *elem,hid_t type_id, unsigned ndim, const hsize_t *point, void *operator_data);

/****************************************************************
**
**  test_select_hyper_iter1(): Iterator for checking hyperslab iteration
**
****************************************************************/
static herr_t
test_select_hyper_iter1(void *_elem, hid_t UNUSED type_id, unsigned UNUSED ndim, const hsize_t UNUSED *point, void *_operator_data)
{
    uint8_t *tbuf=(uint8_t *)_elem,     /* temporary buffer pointer */
            **tbuf2=(uint8_t **)_operator_data; /* temporary buffer handle */

    if(*tbuf!=**tbuf2)
        return(-1);
    else {
        (*tbuf2)++;
        return(0);
    }
}   /* end test_select_hyper_iter1() */

/****************************************************************
**
**  test_select_hyper(): Test basic H5S (dataspace) selection code.
**      Tests hyperslabs of various sizes and dimensionalities.
**
****************************************************************/
static void
test_select_hyper(hid_t xfer_plist)
{
    hid_t	fid1;		/* HDF5 File IDs		*/
    hid_t	dataset;	/* Dataset ID			*/
    hid_t	sid1,sid2;	/* Dataspace ID			*/
    hsize_t	dims1[] = {SPACE1_DIM1, SPACE1_DIM2, SPACE1_DIM3};
    hsize_t	dims2[] = {SPACE2_DIM1, SPACE2_DIM2};
    hsize_t	dims3[] = {SPACE3_DIM1, SPACE3_DIM2};
    hsize_t	start[SPACE1_RANK];     /* Starting location of hyperslab */
    hsize_t	stride[SPACE1_RANK];    /* Stride of hyperslab */
    hsize_t	count[SPACE1_RANK];     /* Element count of hyperslab */
    hsize_t	block[SPACE1_RANK];     /* Block size of hyperslab */
    uint8_t    *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf;       /* temporary buffer pointer */
    int        i,j;        /* Counters */
    herr_t		ret;		/* Generic return value		*/
    H5S_class_t ext_type;   /* Extent type */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Hyperslab Selection Functions\n"));

    /* Allocate write & read buffers */
    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE2_DIM1 * SPACE2_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), (size_t)(SPACE3_DIM1 * SPACE3_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++)
            *tbuf++=(uint8_t)((i*SPACE2_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Verify extent type */
    ext_type = H5Sget_simple_extent_type(sid1);
    VERIFY(ext_type, H5S_SIMPLE, "H5Sget_simple_extent_type");

    /* Test selecting stride==0 to verify failure */
    start[0]=1; start[1]=0; start[2]=0;
    stride[0]=0; stride[1]=0; stride[2]=0;
    count[0]=2; count[1]=15; count[2]=13;
    block[0]=1; block[1]=1; block[2]=1;
    H5E_BEGIN_TRY {
        ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,stride,count,block);
    } H5E_END_TRY;
    VERIFY(ret, FAIL, "H5Sselect_hyperslab");

    /* Test selecting stride<block to verify failure */
    start[0]=1; start[1]=0; start[2]=0;
    stride[0]=1; stride[1]=1; stride[2]=1;
    count[0]=2; count[1]=15; count[2]=13;
    block[0]=2; block[1]=2; block[2]=2;
    H5E_BEGIN_TRY {
        ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,stride,count,block);
    } H5E_END_TRY;
    VERIFY(ret, FAIL, "H5Sselect_hyperslab");

    /* Select 2x15x13 hyperslab for disk dataset */
    start[0]=1; start[1]=0; start[2]=0;
    stride[0]=1; stride[1]=1; stride[2]=1;
    count[0]=2; count[1]=15; count[2]=13;
    block[0]=1; block[1]=1; block[2]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select 15x26 hyperslab for memory dataset */
    start[0]=15; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=15; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create a dataset */
    dataset=H5Dcreate2(fid1,SPACE2_NAME,H5T_NATIVE_UCHAR,sid1,H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);

    /* Write selection to disk */
    ret=H5Dwrite(dataset,H5T_NATIVE_UCHAR,sid2,sid1,xfer_plist,wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Exercise checks for NULL buffer and valid selection */
    H5E_BEGIN_TRY {
        ret=H5Dwrite(dataset,H5T_NATIVE_UCHAR,sid2,sid1,xfer_plist,NULL);
    } H5E_END_TRY;
    VERIFY(ret, FAIL, "H5Dwrite");
    H5E_BEGIN_TRY {
        ret=H5Dwrite(dataset,H5T_NATIVE_UCHAR,H5S_ALL,H5S_ALL,xfer_plist,NULL);
    } H5E_END_TRY;
    VERIFY(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 15x26 hyperslab for reading memory dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=15; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select 0x26 hyperslab to OR into current selection (should be a NOOP) */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=0; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_OR,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Read selection from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,xfer_plist,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Exercise checks for NULL buffer and valid selection */
    H5E_BEGIN_TRY {
        ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,xfer_plist,NULL);
    } H5E_END_TRY;
    VERIFY(ret, FAIL, "H5Dread");
    H5E_BEGIN_TRY {
        ret=H5Dread(dataset,H5T_NATIVE_UCHAR,H5S_ALL,H5S_ALL,xfer_plist,NULL);
    } H5E_END_TRY;
    VERIFY(ret, FAIL, "H5Dread");

    /* Check that the values match with a dataset iterator */
    tbuf=wbuf+(15*SPACE2_DIM2);
    ret = H5Diterate(rbuf,H5T_NATIVE_UCHAR,sid2,test_select_hyper_iter1,&tbuf);
    CHECK(ret, FAIL, "H5Diterate");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_hyper() */

struct pnt_iter {
    hsize_t	coord[POINT1_NPOINTS*2][SPACE2_RANK]; /* Coordinates for point selection */
    uint8_t *buf;           /* Buffer the points are in */
    int offset;            /* Which point we are looking at */
};

/****************************************************************
**
**  test_select_point_iter1(): Iterator for checking point iteration
**  (This is really ugly code, not a very good example of correct usage - QAK)
**
****************************************************************/
static herr_t
test_select_point_iter1(void *_elem, hid_t UNUSED type_id, unsigned UNUSED ndim, const hsize_t UNUSED *point, void *_operator_data)
{
    uint8_t *elem=(uint8_t *)_elem;  /* Pointer to the element to examine */
    uint8_t *tmp;                       /* temporary ptr to element in operator data */
    struct pnt_iter *pnt_info=(struct pnt_iter *)_operator_data;

    tmp=pnt_info->buf+(pnt_info->coord[pnt_info->offset][0]*SPACE2_DIM2)+pnt_info->coord[pnt_info->offset][1];
    if(*elem!=*tmp)
        return(-1);
    else {
        pnt_info->offset++;
        return(0);
    }
}   /* end test_select_point_iter1() */

/****************************************************************
**
**  test_select_point(): Test basic H5S (dataspace) selection code.
**      Tests element selections between dataspaces of various sizes
**      and dimensionalities.
**
****************************************************************/
static void
test_select_point(hid_t xfer_plist)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hsize_t		dims1[] = {SPACE1_DIM1, SPACE1_DIM2, SPACE1_DIM3};
    hsize_t		dims2[] = {SPACE2_DIM1, SPACE2_DIM2};
    hsize_t		dims3[] = {SPACE3_DIM1, SPACE3_DIM2};
    hsize_t	coord1[POINT1_NPOINTS][SPACE1_RANK]; /* Coordinates for point selection */
    hsize_t	temp_coord1[POINT1_NPOINTS][SPACE1_RANK]; /* Coordinates for point selection */
    hsize_t	coord2[POINT1_NPOINTS][SPACE2_RANK]; /* Coordinates for point selection */
    hsize_t	temp_coord2[POINT1_NPOINTS][SPACE2_RANK]; /* Coordinates for point selection */
    hsize_t	coord3[POINT1_NPOINTS][SPACE3_RANK]; /* Coordinates for point selection */
    hsize_t	temp_coord3[POINT1_NPOINTS][SPACE3_RANK]; /* Coordinates for point selection */
    uint8_t    *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf;       /* temporary buffer pointer */
    int        i,j;        /* Counters */
    struct pnt_iter pi;     /* Custom Pointer iterator struct */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Element Selection Functions\n"));

    /* Allocate write & read buffers */
    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE2_DIM1 * SPACE2_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), (size_t)(SPACE3_DIM1 * SPACE3_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++)
            *tbuf++=(uint8_t)((i*SPACE2_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for write buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select sequence of ten points for disk dataset */
    coord1[0][0]=0; coord1[0][1]=10; coord1[0][2]= 5;
    coord1[1][0]=1; coord1[1][1]= 2; coord1[1][2]= 7;
    coord1[2][0]=2; coord1[2][1]= 4; coord1[2][2]= 9;
    coord1[3][0]=0; coord1[3][1]= 6; coord1[3][2]=11;
    coord1[4][0]=1; coord1[4][1]= 8; coord1[4][2]=13;
    coord1[5][0]=2; coord1[5][1]=12; coord1[5][2]= 0;
    coord1[6][0]=0; coord1[6][1]=14; coord1[6][2]= 2;
    coord1[7][0]=1; coord1[7][1]= 0; coord1[7][2]= 4;
    coord1[8][0]=2; coord1[8][1]= 1; coord1[8][2]= 6;
    coord1[9][0]=0; coord1[9][1]= 3; coord1[9][2]= 8;
    ret = H5Sselect_elements(sid1, H5S_SELECT_SET, (size_t)POINT1_NPOINTS, (const hsize_t *)coord1);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Verify correct elements selected */
    H5Sget_select_elem_pointlist(sid1,(hsize_t)0,(hsize_t)POINT1_NPOINTS,(hsize_t *)temp_coord1);
    for(i=0; i<POINT1_NPOINTS; i++) {
        VERIFY(temp_coord1[i][0],coord1[i][0],"H5Sget_select_elem_pointlist");
        VERIFY(temp_coord1[i][1],coord1[i][1],"H5Sget_select_elem_pointlist");
        VERIFY(temp_coord1[i][2],coord1[i][2],"H5Sget_select_elem_pointlist");
    } /* end for */

    ret = (int)H5Sget_select_npoints(sid1);
    VERIFY(ret, 10, "H5Sget_select_npoints");

    /* Append another sequence of ten points to disk dataset */
    coord1[0][0]=0; coord1[0][1]= 2; coord1[0][2]= 0;
    coord1[1][0]=1; coord1[1][1]=10; coord1[1][2]= 8;
    coord1[2][0]=2; coord1[2][1]= 8; coord1[2][2]=10;
    coord1[3][0]=0; coord1[3][1]= 7; coord1[3][2]=12;
    coord1[4][0]=1; coord1[4][1]= 3; coord1[4][2]=11;
    coord1[5][0]=2; coord1[5][1]= 1; coord1[5][2]= 1;
    coord1[6][0]=0; coord1[6][1]=13; coord1[6][2]= 7;
    coord1[7][0]=1; coord1[7][1]=14; coord1[7][2]= 6;
    coord1[8][0]=2; coord1[8][1]= 2; coord1[8][2]= 5;
    coord1[9][0]=0; coord1[9][1]= 6; coord1[9][2]=13;
    ret = H5Sselect_elements(sid1, H5S_SELECT_APPEND, (size_t)POINT1_NPOINTS, (const hsize_t *)coord1);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Verify correct elements selected */
    H5Sget_select_elem_pointlist(sid1,(hsize_t)POINT1_NPOINTS,(hsize_t)POINT1_NPOINTS,(hsize_t *)temp_coord1);
    for(i=0; i<POINT1_NPOINTS; i++) {
        VERIFY(temp_coord1[i][0],coord1[i][0],"H5Sget_select_elem_pointlist");
        VERIFY(temp_coord1[i][1],coord1[i][1],"H5Sget_select_elem_pointlist");
        VERIFY(temp_coord1[i][2],coord1[i][2],"H5Sget_select_elem_pointlist");
    } /* end for */

    ret = (int)H5Sget_select_npoints(sid1);
    VERIFY(ret, 20, "H5Sget_select_npoints");

    /* Select sequence of ten points for memory dataset */
    coord2[0][0]=12; coord2[0][1]= 3;
    coord2[1][0]=15; coord2[1][1]=13;
    coord2[2][0]= 7; coord2[2][1]=25;
    coord2[3][0]= 0; coord2[3][1]= 6;
    coord2[4][0]=13; coord2[4][1]= 0;
    coord2[5][0]=24; coord2[5][1]=11;
    coord2[6][0]=12; coord2[6][1]=21;
    coord2[7][0]=29; coord2[7][1]= 4;
    coord2[8][0]= 8; coord2[8][1]= 8;
    coord2[9][0]=19; coord2[9][1]=17;
    ret = H5Sselect_elements(sid2, H5S_SELECT_SET, (size_t)POINT1_NPOINTS, (const hsize_t *)coord2);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Verify correct elements selected */
    H5Sget_select_elem_pointlist(sid2,(hsize_t)0,(hsize_t)POINT1_NPOINTS,(hsize_t *)temp_coord2);
    for(i=0; i<POINT1_NPOINTS; i++) {
        VERIFY(temp_coord2[i][0],coord2[i][0],"H5Sget_select_elem_pointlist");
        VERIFY(temp_coord2[i][1],coord2[i][1],"H5Sget_select_elem_pointlist");
    } /* end for */

    /* Save points for later iteration */
    /* (these are in the second half of the buffer, because we are prepending */
    /*  the next list of points to the beginning of the point selection list) */
    HDmemcpy(((char *)pi.coord)+sizeof(coord2),coord2,sizeof(coord2));

    ret = (int)H5Sget_select_npoints(sid2);
    VERIFY(ret, 10, "H5Sget_select_npoints");

    /* Append another sequence of ten points to memory dataset */
    coord2[0][0]=24; coord2[0][1]= 0;
    coord2[1][0]= 2; coord2[1][1]=25;
    coord2[2][0]=13; coord2[2][1]=17;
    coord2[3][0]= 8; coord2[3][1]= 3;
    coord2[4][0]=29; coord2[4][1]= 4;
    coord2[5][0]=11; coord2[5][1]=14;
    coord2[6][0]= 5; coord2[6][1]=22;
    coord2[7][0]=12; coord2[7][1]= 2;
    coord2[8][0]=21; coord2[8][1]=12;
    coord2[9][0]= 9; coord2[9][1]=18;
    ret = H5Sselect_elements(sid2, H5S_SELECT_PREPEND, (size_t)POINT1_NPOINTS, (const hsize_t *)coord2);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Verify correct elements selected */
    H5Sget_select_elem_pointlist(sid2,(hsize_t)0,(hsize_t)POINT1_NPOINTS,(hsize_t *)temp_coord2);
    for(i=0; i<POINT1_NPOINTS; i++) {
        VERIFY(temp_coord2[i][0],coord2[i][0],"H5Sget_select_elem_pointlist");
        VERIFY(temp_coord2[i][1],coord2[i][1],"H5Sget_select_elem_pointlist");
    } /* end for */

    ret = (int)H5Sget_select_npoints(sid2);
    VERIFY(ret, 20, "H5Sget_select_npoints");

    /* Save points for later iteration */
    HDmemcpy(pi.coord, coord2, sizeof(coord2));

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE1_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(dataset, H5T_NATIVE_UCHAR, sid2, sid1, xfer_plist, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select sequence of points for read dataset */
    coord3[0][0]= 0; coord3[0][1]= 2;
    coord3[1][0]= 4; coord3[1][1]= 8;
    coord3[2][0]=13; coord3[2][1]=13;
    coord3[3][0]=14; coord3[3][1]=20;
    coord3[4][0]= 7; coord3[4][1]= 9;
    coord3[5][0]= 2; coord3[5][1]= 0;
    coord3[6][0]= 9; coord3[6][1]=19;
    coord3[7][0]= 1; coord3[7][1]=22;
    coord3[8][0]=12; coord3[8][1]=21;
    coord3[9][0]=11; coord3[9][1]= 6;
    ret = H5Sselect_elements(sid2, H5S_SELECT_SET, (size_t)POINT1_NPOINTS, (const hsize_t *)coord3);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Verify correct elements selected */
    H5Sget_select_elem_pointlist(sid2,(hsize_t)0,(hsize_t)POINT1_NPOINTS,(hsize_t *)temp_coord3);
    for(i=0; i<POINT1_NPOINTS; i++) {
        VERIFY(temp_coord3[i][0],coord3[i][0],"H5Sget_select_elem_pointlist");
        VERIFY(temp_coord3[i][1],coord3[i][1],"H5Sget_select_elem_pointlist");
    } /* end for */

    ret = (int)H5Sget_select_npoints(sid2);
    VERIFY(ret, 10, "H5Sget_select_npoints");

    /* Append another sequence of ten points to disk dataset */
    coord3[0][0]=14; coord3[0][1]=25;
    coord3[1][0]= 0; coord3[1][1]= 0;
    coord3[2][0]=11; coord3[2][1]=11;
    coord3[3][0]= 5; coord3[3][1]=14;
    coord3[4][0]= 3; coord3[4][1]= 5;
    coord3[5][0]= 2; coord3[5][1]= 2;
    coord3[6][0]= 7; coord3[6][1]=13;
    coord3[7][0]= 9; coord3[7][1]=16;
    coord3[8][0]=12; coord3[8][1]=22;
    coord3[9][0]=13; coord3[9][1]= 9;
    ret = H5Sselect_elements(sid2, H5S_SELECT_APPEND, (size_t)POINT1_NPOINTS, (const hsize_t *)coord3);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Verify correct elements selected */
    H5Sget_select_elem_pointlist(sid2,(hsize_t)POINT1_NPOINTS,(hsize_t)POINT1_NPOINTS,(hsize_t *)temp_coord3);
    for(i=0; i<POINT1_NPOINTS; i++) {
        VERIFY(temp_coord3[i][0],coord3[i][0],"H5Sget_select_elem_pointlist");
        VERIFY(temp_coord3[i][1],coord3[i][1],"H5Sget_select_elem_pointlist");
    } /* end for */
    ret = (int)H5Sget_select_npoints(sid2);
    VERIFY(ret, 20, "H5Sget_select_npoints");

    /* Read selection from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,xfer_plist,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Check that the values match with a dataset iterator */
    pi.buf=wbuf;
    pi.offset=0;
    ret = H5Diterate(rbuf,H5T_NATIVE_UCHAR,sid2,test_select_point_iter1,&pi);
    CHECK(ret, FAIL, "H5Diterate");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_point() */

/****************************************************************
**
**  test_select_all_iter1(): Iterator for checking all iteration
**
**
****************************************************************/
static herr_t
test_select_all_iter1(void *_elem, hid_t UNUSED type_id, unsigned UNUSED ndim, const hsize_t UNUSED *point, void *_operator_data)
{
    uint8_t *tbuf=(uint8_t *)_elem,     /* temporary buffer pointer */
            **tbuf2=(uint8_t **)_operator_data; /* temporary buffer handle */

    if(*tbuf!=**tbuf2)
        return(-1);
    else {
        (*tbuf2)++;
        return(0);
    }
}   /* end test_select_all_iter1() */

/****************************************************************
**
**  test_select_none_iter1(): Iterator for checking none iteration
**      (This is never supposed to be called, so it always returns -1)
**
****************************************************************/
static herr_t
test_select_none_iter1(void UNUSED *_elem, hid_t UNUSED type_id, unsigned UNUSED ndim, const hsize_t UNUSED *point, void UNUSED *_operator_data)
{
    return(-1);
}   /* end test_select_none_iter1() */

/****************************************************************
**
**  test_select_all(): Test basic H5S (dataspace) selection code.
**      Tests "all" selections.
**
****************************************************************/
static void
test_select_all(hid_t xfer_plist)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1;	        /* Dataspace ID			*/
    hsize_t		dims1[] = {SPACE4_DIM1, SPACE4_DIM2, SPACE4_DIM3};
    uint8_t    *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf;       /* temporary buffer pointer */
    int        i,j,k;      /* Counters */
    herr_t		ret;		/* Generic return value		*/
    H5S_class_t ext_type;   /* Extent type */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing 'All' Selection Functions\n"));

    /* Allocate write & read buffers */
    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE4_DIM1 * SPACE4_DIM2 * SPACE4_DIM3);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), (size_t)(SPACE4_DIM1 * SPACE4_DIM2 * SPACE4_DIM3));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE4_DIM1; i++)
        for(j=0; j<SPACE4_DIM2; j++)
            for(k=0; k<SPACE4_DIM3; k++)
                *tbuf++ = (uint8_t)(((i * SPACE4_DIM2) + j) * SPACE4_DIM3) + k;

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE4_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Verify extent type */
    ext_type = H5Sget_simple_extent_type(sid1);
    VERIFY(ext_type, H5S_SIMPLE, "H5Sget_simple_extent_type");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE4_NAME, H5T_NATIVE_INT, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(dataset, H5T_NATIVE_UCHAR, H5S_ALL, H5S_ALL, xfer_plist, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read selection from disk */
    ret = H5Dread(dataset, H5T_NATIVE_UCHAR, H5S_ALL, H5S_ALL, xfer_plist, rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Check that the values match with a dataset iterator */
    tbuf = wbuf;
    ret = H5Diterate(rbuf, H5T_NATIVE_UCHAR, sid1, test_select_all_iter1, &tbuf);
    CHECK(ret, FAIL, "H5Diterate");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_all() */

/****************************************************************
**
**  test_select_all_hyper(): Test basic H5S (dataspace) selection code.
**      Tests "all" and hyperslab selections.
**
****************************************************************/
static void
test_select_all_hyper(hid_t xfer_plist)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hsize_t		dims1[] = {SPACE3_DIM1, SPACE3_DIM2};
    hsize_t		dims2[] = {SPACE2_DIM1, SPACE2_DIM2};
    hsize_t		dims3[] = {SPACE3_DIM1, SPACE3_DIM2};
    hsize_t		start[SPACE1_RANK];     /* Starting location of hyperslab */
    hsize_t		stride[SPACE1_RANK];    /* Stride of hyperslab */
    hsize_t		count[SPACE1_RANK];     /* Element count of hyperslab */
    hsize_t		block[SPACE1_RANK];     /* Block size of hyperslab */
    uint8_t    *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf;       /* temporary buffer pointer */
    int        i,j;        /* Counters */
    herr_t		ret;		/* Generic return value		*/
    H5S_class_t ext_type;   /* Extent type */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing 'All' Selection Functions\n"));

    /* Allocate write & read buffers */
    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE2_DIM1 * SPACE2_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), (size_t)(SPACE3_DIM1 * SPACE3_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++)
            *tbuf++=(uint8_t)((i*SPACE2_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE3_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Verify extent type */
    ext_type = H5Sget_simple_extent_type(sid1);
    VERIFY(ext_type, H5S_SIMPLE, "H5Sget_simple_extent_type");

    /* Select entire 15x26 extent for disk dataset */
    ret = H5Sselect_all(sid1);
    CHECK(ret, FAIL, "H5Sselect_all");

    /* Select 15x26 hyperslab for memory dataset */
    start[0] = 15; start[1] = 0;
    stride[0] = 1; stride[1] = 1;
    count[0] = 15; count[1] = 26;
    block[0] = 1; block[1] = 1;
    ret = H5Sselect_hyperslab(sid2, H5S_SELECT_SET, start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE3_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(dataset, H5T_NATIVE_UCHAR, sid2, sid1, xfer_plist, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 15x26 hyperslab for reading memory dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=15; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select no extent for disk dataset */
    ret = H5Sselect_none(sid1);
    CHECK(ret, FAIL, "H5Sselect_all");

    /* Read selection from disk (should fail with no selection defined) */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,xfer_plist,rbuf);
    VERIFY(ret, FAIL, "H5Dread");

    /* Select entire 15x26 extent for disk dataset */
    ret = H5Sselect_all(sid1);
    CHECK(ret, FAIL, "H5Sselect_all");

    /* Read selection from disk (should work now) */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,xfer_plist,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Check that the values match with a dataset iterator */
    tbuf=wbuf+(15*SPACE2_DIM2);
    ret = H5Diterate(rbuf,H5T_NATIVE_UCHAR,sid2,test_select_all_iter1,&tbuf);
    CHECK(ret, FAIL, "H5Diterate");

    /* A quick check to make certain that iterating through a "none" selection works */
    ret = H5Sselect_none(sid2);
    CHECK(ret, FAIL, "H5Sselect_all");
    ret = H5Diterate(rbuf,H5T_NATIVE_UCHAR,sid2,test_select_none_iter1,&tbuf);
    CHECK(ret, FAIL, "H5Diterate");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_all_hyper() */

/****************************************************************
**
**  test_select_combo(): Test basic H5S (dataspace) selection code.
**      Tests combinations of element and hyperslab selections between
**      dataspaces of various sizes and dimensionalities.
**
****************************************************************/
static void
test_select_combo(void)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hsize_t		dims1[] = {SPACE1_DIM1, SPACE1_DIM2, SPACE1_DIM3};
    hsize_t		dims2[] = {SPACE2_DIM1, SPACE2_DIM2};
    hsize_t		dims3[] = {SPACE3_DIM1, SPACE3_DIM2};
    hsize_t		coord1[POINT1_NPOINTS][SPACE1_RANK]; /* Coordinates for point selection */
    hsize_t		start[SPACE1_RANK];     /* Starting location of hyperslab */
    hsize_t		stride[SPACE1_RANK];    /* Stride of hyperslab */
    hsize_t		count[SPACE1_RANK];     /* Element count of hyperslab */
    hsize_t		block[SPACE1_RANK];     /* Block size of hyperslab */
    uint8_t    *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf,       /* temporary buffer pointer */
               *tbuf2;      /* temporary buffer pointer */
    int        i,j;        /* Counters */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Combination of Hyperslab & Element Selection Functions\n"));

    /* Allocate write & read buffers */
    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE2_DIM1 * SPACE2_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), (size_t)(SPACE3_DIM1 * SPACE3_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++)
            *tbuf++=(uint8_t)((i*SPACE2_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for write buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select sequence of ten points for disk dataset */
    coord1[0][0]=0; coord1[0][1]=10; coord1[0][2]= 5;
    coord1[1][0]=1; coord1[1][1]= 2; coord1[1][2]= 7;
    coord1[2][0]=2; coord1[2][1]= 4; coord1[2][2]= 9;
    coord1[3][0]=0; coord1[3][1]= 6; coord1[3][2]=11;
    coord1[4][0]=1; coord1[4][1]= 8; coord1[4][2]=13;
    coord1[5][0]=2; coord1[5][1]=12; coord1[5][2]= 0;
    coord1[6][0]=0; coord1[6][1]=14; coord1[6][2]= 2;
    coord1[7][0]=1; coord1[7][1]= 0; coord1[7][2]= 4;
    coord1[8][0]=2; coord1[8][1]= 1; coord1[8][2]= 6;
    coord1[9][0]=0; coord1[9][1]= 3; coord1[9][2]= 8;
    ret = H5Sselect_elements(sid1, H5S_SELECT_SET, (size_t)POINT1_NPOINTS, (const hsize_t *)coord1);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Select 1x10 hyperslab for writing memory dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=1; count[1]=10;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE1_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(dataset, H5T_NATIVE_UCHAR, sid2, sid1, H5P_DEFAULT, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 10x1 hyperslab for reading memory dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=10; count[1]=1;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Read selection from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read with data written out */
    for(i=0; i<POINT1_NPOINTS; i++) {
        tbuf=wbuf+i;
        tbuf2=rbuf+(i*SPACE3_DIM2);
        if(*tbuf!=*tbuf2)
            TestErrPrintf("element values don't match!, i=%d\n",i);
    } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_combo() */

static int
compare_size_t(const void *s1, const void *s2)
{
    if(*(const size_t *)s1<*(const size_t *)s2)
        return(-1);
    else
        if(*(const size_t *)s1>*(const size_t *)s2)
            return(1);
        else
            return(0);
}

/****************************************************************
**
**  test_select_hyper_stride(): Test H5S (dataspace) selection code.
**      Tests strided hyperslabs of various sizes and dimensionalities.
**
****************************************************************/
static void
test_select_hyper_stride(hid_t xfer_plist)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hsize_t		dims1[] = {SPACE1_DIM1, SPACE1_DIM2, SPACE1_DIM3};
    hsize_t		dims2[] = {SPACE2_DIM1, SPACE2_DIM2};
    hsize_t		dims3[] = {SPACE3_DIM1, SPACE3_DIM2};
    hsize_t		start[SPACE1_RANK];     /* Starting location of hyperslab */
    hsize_t		stride[SPACE1_RANK];    /* Stride of hyperslab */
    hsize_t		count[SPACE1_RANK];     /* Element count of hyperslab */
    hsize_t		block[SPACE1_RANK];     /* Block size of hyperslab */
    uint16_t   *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf,       /* temporary buffer pointer */
               *tbuf2;      /* temporary buffer pointer */
    size_t      loc1[72]={  /* Gruesomely ugly way to make certain hyperslab locations are checked correctly */
       27, 28, 29, 53, 54, 55, 79, 80, 81,   /* Block #1 */
       32, 33, 34, 58, 59, 60, 84, 85, 86,   /* Block #2 */
      157,158,159,183,184,185,209,210,211,   /* Block #3 */
      162,163,164,188,189,190,214,215,216,   /* Block #4 */
      287,288,289,313,314,315,339,340,341,   /* Block #5 */
      292,293,294,318,319,320,344,345,346,   /* Block #6 */
      417,418,419,443,444,445,469,470,471,   /* Block #7 */
      422,423,424,448,449,450,474,475,476,   /* Block #8 */
            };
    size_t      loc2[72]={
        0,  1,  2, 26, 27, 28,    /* Block #1 */
        4,  5,  6, 30, 31, 32,    /* Block #2 */
        8,  9, 10, 34, 35, 36,    /* Block #3 */
       12, 13, 14, 38, 39, 40,    /* Block #4 */
      104,105,106,130,131,132,    /* Block #5 */
      108,109,110,134,135,136,    /* Block #6 */
      112,113,114,138,139,140,    /* Block #7 */
      116,117,118,142,143,144,    /* Block #8 */
      208,209,210,234,235,236,    /* Block #9 */
      212,213,214,238,239,240,    /* Block #10 */
      216,217,218,242,243,244,    /* Block #11 */
      220,221,222,246,247,248,    /* Block #12 */
            };
    int        i,j;        /* Counters */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Hyperslabs with Strides Functionality\n"));

    /* Allocate write & read buffers */
    wbuf = (uint16_t *)HDmalloc(sizeof(uint16_t) * SPACE2_DIM1 * SPACE2_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint16_t *)HDcalloc(sizeof(uint16_t), (size_t)(SPACE3_DIM1 * SPACE3_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++)
            *tbuf++=(uint16_t)((i*SPACE2_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 2x3x3 count with a stride of 2x4x3 & 1x2x2 block hyperslab for disk dataset */
    start[0] = 0; start[1] = 0; start[2] = 0;
    stride[0] = 2; stride[1] = 4; stride[2] = 3;
    count[0] = 2; count[1] = 3; count[2] = 3;
    block[0] = 1; block[1] = 2; block[2] = 2;
    ret = H5Sselect_hyperslab(sid1, H5S_SELECT_SET, start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select 4x2 count with a stride of 5x5 & 3x3 block hyperslab for memory dataset */
    start[0] = 1; start[1] = 1;
    stride[0] = 5; stride[1] = 5;
    count[0] = 4; count[1] = 2;
    block[0] = 3; block[1] = 3;
    ret = H5Sselect_hyperslab(sid2, H5S_SELECT_SET, start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE2_NAME, H5T_STD_U16LE, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(dataset, H5T_NATIVE_USHORT, sid2, sid1, xfer_plist, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 3x4 count with a stride of 4x4 & 2x3 block hyperslab for memory dataset */
    start[0]=0; start[1]=0;
    stride[0]=4; stride[1]=4;
    count[0]=3; count[1]=4;
    block[0]=2; block[1]=3;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Read selection from disk */
    ret=H5Dread(dataset,H5T_NATIVE_USHORT,sid2,sid1,xfer_plist,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Sort the locations into the proper order */
    HDqsort(loc1, (size_t)72, sizeof(size_t), compare_size_t);
    HDqsort(loc2, (size_t)72, sizeof(size_t), compare_size_t);
    /* Compare data read with data written out */
    for(i=0; i<72; i++) {
        tbuf=wbuf+loc1[i];
        tbuf2=rbuf+loc2[i];
        if(*tbuf!=*tbuf2) {
            printf("%d: hyperslab values don't match!, loc1[%d]=%d, loc2[%d]=%d\n",__LINE__,i,(int)loc1[i],i,(int)loc2[i]);
            printf("wbuf=%p, tbuf=%p, rbuf=%p, tbuf2=%p\n",(void *)wbuf,(void *)tbuf,(void *)rbuf,(void *)tbuf2);
            TestErrPrintf("*tbuf=%u, *tbuf2=%u\n",(unsigned)*tbuf,(unsigned)*tbuf2);
        } /* end if */
    } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_hyper_stride() */

/****************************************************************
**
**  test_select_hyper_contig(): Test H5S (dataspace) selection code.
**      Tests contiguous hyperslabs of various sizes and dimensionalities.
**
****************************************************************/
static void
test_select_hyper_contig(hid_t dset_type, hid_t xfer_plist)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hsize_t		dims2[] = {SPACE2_DIM2, SPACE2_DIM1};
    hsize_t		start[SPACE1_RANK];     /* Starting location of hyperslab */
    hsize_t		stride[SPACE1_RANK];    /* Stride of hyperslab */
    hsize_t		count[SPACE1_RANK];     /* Element count of hyperslab */
    hsize_t		block[SPACE1_RANK];     /* Block size of hyperslab */
    uint16_t   *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf;       /* temporary buffer pointer */
    int        i,j;        /* Counters */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Contiguous Hyperslabs Functionality\n"));

    /* Allocate write & read buffers */
    wbuf = (uint16_t *)HDmalloc(sizeof(uint16_t) * SPACE2_DIM1 * SPACE2_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint16_t *)HDcalloc(sizeof(uint16_t), (size_t)(SPACE2_DIM1 * SPACE2_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++)
            *tbuf++=(uint16_t)((i*SPACE2_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 12x10 count with a stride of 1x3 & 3x3 block hyperslab for disk dataset */
    start[0] = 0; start[1] = 0;
    stride[0] = 1; stride[1] = 3;
    count[0] = 12; count[1] = 10;
    block[0] = 1; block[1] = 3;
    ret = H5Sselect_hyperslab(sid1, H5S_SELECT_SET, start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select 4x5 count with a stride of 3x6 & 3x6 block hyperslab for memory dataset */
    start[0] = 0; start[1] = 0;
    stride[0] = 3; stride[1] = 6;
    count[0] = 4; count[1] = 5;
    block[0] = 3; block[1] = 6;
    ret = H5Sselect_hyperslab(sid2, H5S_SELECT_SET, start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE2_NAME, dset_type, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(dataset, H5T_NATIVE_USHORT, sid2, sid1, xfer_plist, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 6x5 count with a stride of 2x6 & 2x6 block hyperslab for disk dataset */
    start[0] = 0; start[1] = 0;
    stride[0] = 2; stride[1] = 6;
    count[0] = 6; count[1] = 5;
    block[0] = 2; block[1] = 6;
    ret = H5Sselect_hyperslab(sid1, H5S_SELECT_SET, start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select 3x15 count with a stride of 4x2 & 4x2 block hyperslab for memory dataset */
    start[0] = 0; start[1] = 0;
    stride[0] = 4; stride[1] = 2;
    count[0] = 3; count[1] = 15;
    block[0] = 4; block[1] = 2;
    ret = H5Sselect_hyperslab(sid2, H5S_SELECT_SET, start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Read selection from disk */
    ret = H5Dread(dataset, H5T_NATIVE_USHORT, sid2, sid1, xfer_plist, rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read with data written out */
    if(HDmemcmp(rbuf, wbuf, sizeof(uint16_t) * 30 * 12)) {
        TestErrPrintf("hyperslab values don't match! Line=%d\n",__LINE__);
#ifdef QAK
        for(i=0, tbuf=wbuf; i<12; i++)
            for(j=0; j<30; j++)
                printf("i=%d, j=%d, *wbuf=%u, *rbuf=%u\n",i,j,(unsigned)*(wbuf+i*30+j),(unsigned)*(rbuf+i*30+j));
#endif /* QAK */
    } /* end if */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_hyper_contig() */

/****************************************************************
**
**  test_select_hyper_contig2(): Test H5S (dataspace) selection code.
**      Tests more contiguous hyperslabs of various sizes and dimensionalities.
**
****************************************************************/
static void
test_select_hyper_contig2(hid_t dset_type, hid_t xfer_plist)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hsize_t		dims2[] = {SPACE8_DIM4, SPACE8_DIM3, SPACE8_DIM2, SPACE8_DIM1};
    hsize_t	        start[SPACE8_RANK];     /* Starting location of hyperslab */
    hsize_t		count[SPACE8_RANK];     /* Element count of hyperslab */
    uint16_t   *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf;       /* temporary buffer pointer */
    int        i,j,k,l;     /* Counters */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing More Contiguous Hyperslabs Functionality\n"));

    /* Allocate write & read buffers */
    wbuf = (uint16_t *)HDmalloc(sizeof(uint16_t) * SPACE8_DIM1 * SPACE8_DIM2 * SPACE8_DIM3 * SPACE8_DIM4);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint16_t *)HDcalloc(sizeof(uint16_t), (size_t)(SPACE8_DIM1 * SPACE8_DIM2 * SPACE8_DIM3 * SPACE8_DIM4));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE8_DIM1; i++)
        for(j=0; j<SPACE8_DIM2; j++)
            for(k=0; k<SPACE8_DIM3; k++)
                for(l=0; l<SPACE8_DIM4; l++)
                    *tbuf++=(uint16_t)((i*SPACE8_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE8_RANK, dims2, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE8_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select contiguous hyperslab for disk dataset */
    start[0]=0; start[1]=0; start[2]=0; start[3]=0;
    count[0]=2; count[1]=SPACE8_DIM3; count[2]=SPACE8_DIM2; count[3]=SPACE8_DIM1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,NULL,count,NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select contiguous hyperslab in memory */
    start[0]=0; start[1]=0; start[2]=0; start[3]=0;
    count[0]=2; count[1]=SPACE8_DIM3; count[2]=SPACE8_DIM2; count[3]=SPACE8_DIM1;
    ret = H5Sselect_hyperslab(sid2, H5S_SELECT_SET, start, NULL, count, NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE8_NAME, dset_type, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(dataset, H5T_NATIVE_USHORT, sid2, sid1, xfer_plist, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE8_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select contiguous hyperslab in memory */
    start[0]=0; start[1]=0; start[2]=0; start[3]=0;
    count[0]=2; count[1]=SPACE8_DIM3; count[2]=SPACE8_DIM2; count[3]=SPACE8_DIM1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,NULL,count,NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select contiguous hyperslab in memory */
    start[0]=0; start[1]=0; start[2]=0; start[3]=0;
    count[0]=2; count[1]=SPACE8_DIM3; count[2]=SPACE8_DIM2; count[3]=SPACE8_DIM1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,NULL,count,NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Read selection from disk */
    ret=H5Dread(dataset,H5T_NATIVE_USHORT,sid2,sid1,xfer_plist,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read with data written out */
    if(HDmemcmp(rbuf,wbuf,sizeof(uint16_t)*2*SPACE8_DIM3*SPACE8_DIM2*SPACE8_DIM1)) {
        TestErrPrintf("Error: hyperslab values don't match!\n");
#ifdef QAK
        for(i=0, tbuf=wbuf; i<12; i++)
            for(j=0; j<30; j++)
                printf("i=%d, j=%d, *wbuf=%u, *rbuf=%u\n",i,j,(unsigned)*(wbuf+i*30+j),(unsigned)*(rbuf+i*30+j));
#endif /* QAK */
    } /* end if */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_hyper_contig2() */

/****************************************************************
**
**  test_select_hyper_contig3(): Test H5S (dataspace) selection code.
**      Tests contiguous hyperslabs of various sizes and dimensionalities.
**  This test uses a hyperslab that is contiguous in the lowest dimension,
**  not contiguous in a dimension, then has a selection across the entire next
**  dimension (which should be "flattened" out also).
**
****************************************************************/
static void
test_select_hyper_contig3(hid_t dset_type, hid_t xfer_plist)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hsize_t		dims2[] = {SPACE8_DIM4, SPACE8_DIM3, SPACE8_DIM2, SPACE8_DIM1};
    hsize_t	        start[SPACE8_RANK];     /* Starting location of hyperslab */
    hsize_t		count[SPACE8_RANK];     /* Element count of hyperslab */
    uint16_t   *wbuf,           /* Buffer to write to disk */
               *rbuf,           /* Buffer read from disk */
               *tbuf, *tbuf2;   /* Temporary buffer pointers */
    unsigned   i,j,k,l;     /* Counters */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Yet More Contiguous Hyperslabs Functionality\n"));

    /* Allocate write & read buffers */
    wbuf = (uint16_t *)HDmalloc(sizeof(uint16_t) * SPACE8_DIM1 * SPACE8_DIM2 * SPACE8_DIM3 * SPACE8_DIM4);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint16_t *)HDcalloc(sizeof(uint16_t), (size_t)(SPACE8_DIM1 * SPACE8_DIM2 * SPACE8_DIM3 * SPACE8_DIM4));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE8_DIM4; i++)
        for(j=0; j<SPACE8_DIM3; j++)
            for(k=0; k<SPACE8_DIM2; k++)
                for(l=0; l<SPACE8_DIM1; l++)
                    *tbuf++=(uint16_t)((k*SPACE8_DIM2)+l);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE8_RANK, dims2, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE8_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select semi-contiguous hyperslab for disk dataset */
    start[0] = 0; start[1] = 0; start[2] = SPACE8_DIM2/2; start[3] = 0;
    count[0] = 2; count[1] = SPACE8_DIM3; count[2] = SPACE8_DIM2 / 2; count[3] = SPACE8_DIM1;
    ret = H5Sselect_hyperslab(sid1, H5S_SELECT_SET, start, NULL, count, NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select semi-contiguous hyperslab in memory */
    start[0] = 0; start[1] = 0; start[2] = SPACE8_DIM2 / 2; start[3] = 0;
    count[0] = 2; count[1] = SPACE8_DIM3; count[2] = SPACE8_DIM2 / 2; count[3] = SPACE8_DIM1;
    ret = H5Sselect_hyperslab(sid2, H5S_SELECT_SET, start, NULL, count, NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE8_NAME, dset_type, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(dataset, H5T_NATIVE_USHORT, sid2, sid1, xfer_plist, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE8_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select semi-contiguous hyperslab in memory */
    start[0]=0; start[1]=0; start[2]=SPACE8_DIM2/2; start[3]=0;
    count[0]=2; count[1]=SPACE8_DIM3; count[2]=SPACE8_DIM2/2; count[3]=SPACE8_DIM1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,NULL,count,NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select semi-contiguous hyperslab in memory */
    start[0]=0; start[1]=0; start[2]=SPACE8_DIM2/2; start[3]=0;
    count[0]=2; count[1]=SPACE8_DIM3; count[2]=SPACE8_DIM2/2; count[3]=SPACE8_DIM1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,NULL,count,NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Read selection from disk */
    ret=H5Dread(dataset,H5T_NATIVE_USHORT,sid2,sid1,xfer_plist,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read with data written out */
    for(i=0, tbuf=wbuf,tbuf2=rbuf; i<SPACE8_DIM4; i++)
        for(j=0; j<SPACE8_DIM3; j++)
            for(k=0; k<SPACE8_DIM2; k++)
                for(l=0; l<SPACE8_DIM1; l++,tbuf++,tbuf2++)
                    if( (i>=start[0] && i<(start[0]+count[0])) &&
                            (j>=start[1] && j<(start[1]+count[1])) &&
                            (k>=start[2] && k<(start[2]+count[2])) &&
                            (l>=start[3] && l<(start[3]+count[3])) ) {
                        if(*tbuf!=*tbuf2) {
                            printf("Error: hyperslab values don't match!\n");
                            TestErrPrintf("Line: %d, i=%u, j=%u, k=%u, l=%u, *tbuf=%u,*tbuf2=%u\n",__LINE__,i,j,k,l,(unsigned)*tbuf,(unsigned)*tbuf2);
                        } /* end if */
                    } /* end if */
                    else {
                        if(*tbuf2!=0) {
                            printf("Error: invalid data in read buffer!\n");
                            TestErrPrintf("Line: %d, i=%u, j=%u, k=%u, l=%u, *tbuf=%u,*tbuf2=%u\n",__LINE__,i,j,k,l,(unsigned)*tbuf,(unsigned)*tbuf2);
                        } /* end if */
                    } /* end else */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_hyper_contig3() */


/****************************************************************
**
**  verify_select_hyper_contig_dr__run_test(): Verify data from
**      test_select_hyper_contig_dr__run_test()
**
****************************************************************/
static void
verify_select_hyper_contig_dr__run_test(const uint16_t *cube_buf,
    size_t cube_size, unsigned edge_size, unsigned cube_rank)
{
    const uint16_t     *cube_ptr;           /* Pointer into the cube buffer */
    uint16_t		expected_value;     /* Expected value in dataset */
    unsigned            i, j, k, l, m;      /* Local index variables */
    size_t              s;                  /* Local index variable */
    hbool_t		mis_match;          /* Flag to indicate mis-match in expected value */

    HDassert(cube_buf);
    HDassert(cube_size > 0);

    expected_value = 0;
    mis_match = FALSE;
    cube_ptr = cube_buf;
    s = 0;
    i = 0;
    do {
        j = 0;
        do {
            k = 0;
            do {
                l = 0;
                do {
                    m = 0;
                    do {
                        /* Sanity check */
                        HDassert(s < cube_size);

                        /* Check for correct value */
                        if(*cube_ptr != expected_value)
                            mis_match = TRUE;

                        /* Advance to next element */
                        cube_ptr++;
                        expected_value++;
                        s++;       
                        m++;       
                    } while((cube_rank > 0) && (m < edge_size));
                    l++;
                } while((cube_rank > 1) && (l < edge_size));
                k++;
            } while((cube_rank > 2) && (k < edge_size));
            j++;
        } while((cube_rank > 3) && (j < edge_size));
        i++;
    } while((cube_rank > 4) && (i < edge_size));
    if(mis_match)
        TestErrPrintf("Initial cube data don't match! Line = %d\n", __LINE__);
}   /* verify_select_hyper_contig_dr__run_test() */


/****************************************************************
**
**  test_select_hyper_contig_dr__run_test(): Test H5S (dataspace) 
**	selection code with contiguous source and target having 
**	different ranks but the same shape.  We have already
**	tested H5S_shape_same in isolation, so now we try to do 
**	I/O.
**
****************************************************************/
static void
test_select_hyper_contig_dr__run_test(int test_num, const uint16_t *cube_buf,
    const uint16_t *zero_buf, unsigned edge_size, unsigned chunk_edge_size,
    unsigned small_rank, unsigned large_rank, hid_t dset_type, hid_t xfer_plist)
{
    hbool_t		mis_match;              /* Flag indicating a value read in wasn't what was expected */
    hid_t               fapl;                   /* File access property list */
    hid_t		fid1;		        /* File ID */
    hid_t		small_cube_sid;         /* Dataspace ID for small cube in memory & file */
    hid_t		mem_large_cube_sid;     /* Dataspace ID for large cube in memory */
    hid_t		file_large_cube_sid;    /* Dataspace ID for large cube in file */
    hid_t		small_cube_dcpl_id = H5P_DEFAULT;   /* DCPL for small cube dataset */
    hid_t		large_cube_dcpl_id = H5P_DEFAULT;   /* DCPL for large cube dataset */
    hid_t		small_cube_dataset;	/* Dataset ID */
    hid_t		large_cube_dataset;	/* Dataset ID */
    size_t              start_index;            /* Offset within buffer to begin inspecting */
    size_t              stop_index;             /* Offset within buffer to end inspecting */
    uint16_t		expected_value;         /* Expected value in dataset */
    uint16_t	      * small_cube_buf_1;       /* Buffer for small cube data */
    uint16_t	      * large_cube_buf_1;       /* Buffer for large cube data */
    uint16_t	      * ptr_1;                  /* Temporary pointer into cube data */
    hsize_t		dims[SS_DR_MAX_RANK];   /* Dataspace dimensions */
    hsize_t     	start[SS_DR_MAX_RANK];  /* Shared hyperslab start offset */
    hsize_t     	stride[SS_DR_MAX_RANK]; /* Shared hyperslab stride */
    hsize_t     	count[SS_DR_MAX_RANK];  /* Shared hyperslab count */
    hsize_t     	block[SS_DR_MAX_RANK];  /* Shared hyperslab block size */
    hsize_t	      * start_ptr;          /* Actual hyperslab start offset */
    hsize_t	      * stride_ptr;         /* Actual hyperslab stride */
    hsize_t	      * count_ptr;          /* Actual hyperslab count */
    hsize_t	      * block_ptr;          /* Actual hyperslab block size */
    size_t              small_cube_size;    /* Number of elements in small cube */
    size_t              large_cube_size;    /* Number of elements in large cube */
    unsigned            u, v, w, x;     /* Local index variables */
    size_t              s;              /* Local index variable */
    htri_t      	check;          /* Shape comparison return value */
    herr_t      	ret;            /* Generic return value */

    MESSAGE(7, ("\tn-cube slice through m-cube I/O test %d.\n", test_num));
    MESSAGE(7, ("\tranks = %u/%u, edge_size = %u, chunk_edge_size = %u.\n", small_rank, large_rank, edge_size, chunk_edge_size));

    HDassert(edge_size >= 6);
    HDassert(edge_size >= chunk_edge_size);
    HDassert((chunk_edge_size == 0) || (chunk_edge_size >= 3));
    HDassert(small_rank > 0);
    HDassert(small_rank < large_rank);
    HDassert(large_rank <= SS_DR_MAX_RANK);

    /* Compute cube sizes */
    small_cube_size = large_cube_size = (size_t)1;
    for(u = 0; u < large_rank; u++) {
        if(u < small_rank)
            small_cube_size *= (size_t)edge_size;

        large_cube_size *= (size_t)edge_size;
    } /* end for */

    HDassert(large_cube_size < (size_t)UINT_MAX);

    /* set up the start, stride, count, and block pointers */
    start_ptr  = &(start[SS_DR_MAX_RANK - large_rank]);
    stride_ptr = &(stride[SS_DR_MAX_RANK - large_rank]);
    count_ptr  = &(count[SS_DR_MAX_RANK - large_rank]);
    block_ptr  = &(block[SS_DR_MAX_RANK - large_rank]);

    /* Allocate buffers */
    small_cube_buf_1 = (uint16_t *)HDcalloc(sizeof(uint16_t), small_cube_size);
    CHECK(small_cube_buf_1, NULL, "HDcalloc");
    large_cube_buf_1 = (uint16_t *)HDcalloc(sizeof(uint16_t), large_cube_size);
    CHECK(large_cube_buf_1, NULL, "HDcalloc");

    /* Create a dataset transfer property list */
    fapl = H5Pcreate(H5P_FILE_ACCESS);
    CHECK(fapl, FAIL, "H5Pcreate");

    /* Use the 'core' VFD for this test */
    ret = H5Pset_fapl_core(fapl, (size_t)(1024 * 1024), FALSE);
    CHECK(ret, FAIL, "H5Pset_fapl_core");

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Close file access property list */
    ret = H5Pclose(fapl);
    CHECK(ret, FAIL, "H5Pclose");

    /* setup dims: */
    dims[0] = dims[1] = dims[2] = dims[3] = dims[4] = (hsize_t)edge_size;

    /* Create small cube dataspaces */
    small_cube_sid = H5Screate_simple((int)small_rank, dims, NULL);
    CHECK(small_cube_sid, FAIL, "H5Screate_simple");

    /* Create large cube dataspace */
    mem_large_cube_sid = H5Screate_simple((int)large_rank, dims, NULL);
    CHECK(mem_large_cube_sid, FAIL, "H5Screate_simple");
    file_large_cube_sid = H5Screate_simple((int)large_rank, dims, NULL);
    CHECK(file_large_cube_sid, FAIL, "H5Screate_simple");

    /* if chunk edge size is greater than zero, set up the small and
     * large data set creation property lists to specify chunked 
     * datasets.
     */
    if(chunk_edge_size > 0) {
        hsize_t		chunk_dims[SS_DR_MAX_RANK];     /* Chunk dimensions */

        chunk_dims[0] = chunk_dims[1] = 
		chunk_dims[2] = chunk_dims[3] = chunk_dims[4] = (hsize_t)chunk_edge_size;

        small_cube_dcpl_id = H5Pcreate(H5P_DATASET_CREATE);
        CHECK(small_cube_dcpl_id, FAIL, "H5Pcreate");

        ret = H5Pset_layout(small_cube_dcpl_id, H5D_CHUNKED);
        CHECK(ret, FAIL, "H5Pset_layout");

        ret = H5Pset_chunk(small_cube_dcpl_id, (int)small_rank, chunk_dims);
        CHECK(ret, FAIL, "H5Pset_chunk");


        large_cube_dcpl_id = H5Pcreate(H5P_DATASET_CREATE);
        CHECK(large_cube_dcpl_id, FAIL, "H5Pcreate");

        ret = H5Pset_layout(large_cube_dcpl_id, H5D_CHUNKED);
        CHECK(ret, FAIL, "H5Pset_layout");

        ret = H5Pset_chunk(large_cube_dcpl_id, (int)large_rank, chunk_dims);
        CHECK(ret, FAIL, "H5Pset_chunk");
    } /* end if */

    /* create the small cube dataset */
    small_cube_dataset = H5Dcreate2(fid1, "small_cube_dataset", dset_type, 
            small_cube_sid, H5P_DEFAULT, small_cube_dcpl_id, H5P_DEFAULT);
    CHECK(small_cube_dataset, FAIL, "H5Dcreate2");

    /* Close non-default small dataset DCPL */
    if(small_cube_dcpl_id != H5P_DEFAULT) {
        ret = H5Pclose(small_cube_dcpl_id);
        CHECK(ret, FAIL, "H5Pclose");
    } /* end if */

    /* create the large cube dataset */
    large_cube_dataset = H5Dcreate2(fid1, "large_cube_dataset", dset_type, 
            file_large_cube_sid, H5P_DEFAULT, large_cube_dcpl_id, H5P_DEFAULT);
    CHECK(large_cube_dataset, FAIL, "H5Dcreate2");

    /* Close non-default large dataset DCPL */
    if(large_cube_dcpl_id != H5P_DEFAULT) {
        ret = H5Pclose(large_cube_dcpl_id);
        CHECK(ret, FAIL, "H5Pclose");
    } /* end if */


    /* write initial data to the on disk datasets */
    ret = H5Dwrite(small_cube_dataset, H5T_NATIVE_UINT16, small_cube_sid, 
            small_cube_sid, xfer_plist, cube_buf);
    CHECK(ret, FAIL, "H5Dwrite");

    ret = H5Dwrite(large_cube_dataset, H5T_NATIVE_UINT16, mem_large_cube_sid, 
            file_large_cube_sid, xfer_plist, cube_buf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* read initial data from disk and verify that it is as expected. */
    ret = H5Dread(small_cube_dataset, H5T_NATIVE_UINT16, small_cube_sid, 
        small_cube_sid, xfer_plist, small_cube_buf_1);
    CHECK(ret, FAIL, "H5Dread");

    /* Check that the data is valid */
    verify_select_hyper_contig_dr__run_test(small_cube_buf_1, small_cube_size,
        edge_size, small_rank);

    ret = H5Dread(large_cube_dataset, H5T_NATIVE_UINT16, mem_large_cube_sid, 
        file_large_cube_sid, xfer_plist, large_cube_buf_1);
    CHECK(ret, FAIL, "H5Dread");

    /* Check that the data is valid */
    verify_select_hyper_contig_dr__run_test(large_cube_buf_1, large_cube_size,
        edge_size, large_rank);


    /* first, verify that we can read from disk correctly using selections
     * of different rank that H5S_select_shape_same() views as being of the
     * same shape.
     *
     * Start by reading small_rank-D slice from the on disk large cube, and 
     * verifying that the data read is correct.  Verify that H5S_select_shape_same() 
     * returns true on the memory and file selections.
     */

    
    /* set up start, stride, count, and block -- note that we will
     * change start[] so as to read slices of the large cube.
     */
    for(u = 0; u < SS_DR_MAX_RANK; u++) {
        start[u] = 0;
        stride[u] = 1;
        count[u] = 1;
        if((SS_DR_MAX_RANK - u) > small_rank)
            block[u] = 1;
        else
            block[u] = (hsize_t)edge_size;
    } /* end for */

    u = 0;
    do {
        v = 0;
        do {
            w = 0;
            do {
                x = 0;
                do {
                    /* we know that small_rank >= 1 and that large_rank > small_rank
                     * by the assertions at the head of this function.  Thus no
                     * need for another inner loop.
                     */
                    start[0] = (hsize_t)u;
                    start[1] = (hsize_t)v;
                    start[2] = (hsize_t)w;
                    start[3] = (hsize_t)x;
                    start[4] = (hsize_t)0;

                    ret = H5Sselect_hyperslab(file_large_cube_sid, 
                                              H5S_SELECT_SET,
                                              start_ptr, 
                                              stride_ptr, 
                                              count_ptr, 
                                              block_ptr);
                    CHECK(ret, FAIL, "H5Sselect_hyperslab");

                    /* verify that H5S_select_shape_same() reports the two 
                     * selections as having the same shape.
                     */
                    check = H5S_select_shape_same_test(small_cube_sid, 
                                                       file_large_cube_sid);
                    VERIFY(check, TRUE, "H5S_select_shape_same_test");

                    /* Read selection from disk */
                    ret = H5Dread(large_cube_dataset,
                                  H5T_NATIVE_UINT16,
                                  small_cube_sid,
                                  file_large_cube_sid,
                                  xfer_plist,
                                  small_cube_buf_1);
                    CHECK(ret, FAIL, "H5Dread");

                    /* verify that expected data is retrieved */
                    mis_match = FALSE;
                    ptr_1 = small_cube_buf_1;
                    expected_value = (uint16_t)((u * edge_size * edge_size * edge_size * edge_size) +
                                     (v * edge_size * edge_size * edge_size) +
                                     (w * edge_size * edge_size) +
                                     (x * edge_size));
                    for(s = 0; s < small_cube_size; s++ ) {
                        if(*ptr_1 != expected_value )
                            mis_match = TRUE;
                        ptr_1++;
                        expected_value++;
                    } /* end for */
                    if(mis_match)
                        TestErrPrintf("small cube read from largecube has bad data! Line=%d\n",__LINE__);

                    x++;
                } while((large_rank >= 2) && (small_rank <= 1) && (x < edge_size));
                w++;
            } while((large_rank >= 3) && (small_rank <= 2) && (w < edge_size));
            v++;
        } while((large_rank >= 4) && (small_rank <= 3) && (v < edge_size));
        u++;
    } while((large_rank >= 5) && (small_rank <= 4) && (u < edge_size));
        

    /* similarly, read the on disk small cube into slices through the in memory
     * large cube, and verify that the correct data (and only the correct data)
     * is read.
     */

    /* zero out the in-memory large cube */
    HDmemset(large_cube_buf_1, 0, large_cube_size * sizeof(uint16_t));

    u = 0;
    do {
        v = 0;
        do {
            w = 0;
            do {
                x = 0;
                do {
                    /* we know that small_rank >= 1 and that large_rank > small_rank
                     * by the assertions at the head of this function.  Thus no
                     * need for another inner loop.
                     */
                    start[0] = (hsize_t)u;
                    start[1] = (hsize_t)v;
                    start[2] = (hsize_t)w;
                    start[3] = (hsize_t)x;
                    start[4] = (hsize_t)0;

                    ret = H5Sselect_hyperslab(mem_large_cube_sid, 
                                              H5S_SELECT_SET,
                                              start_ptr, 
                                              stride_ptr, 
                                              count_ptr, 
                                              block_ptr);
                    CHECK(ret, FAIL, "H5Sselect_hyperslab");


                    /* verify that H5S_select_shape_same() reports the two 
                     * selections as having the same shape.
                     */
                    check = H5S_select_shape_same_test(small_cube_sid, 
                                                       mem_large_cube_sid);
                    VERIFY(check, TRUE, "H5S_select_shape_same_test");


                    /* Read selection from disk */
                    ret = H5Dread(small_cube_dataset,
                                  H5T_NATIVE_UINT16,
                                  mem_large_cube_sid,
                                  small_cube_sid,
                                  xfer_plist,
                                  large_cube_buf_1);
                    CHECK(ret, FAIL, "H5Dread");


                    /* verify that the expected data and only the 
                     * expected data was read.
                     */
                    start_index = (u * edge_size * edge_size * edge_size * edge_size) +
                                  (v * edge_size * edge_size * edge_size) +
                                  (w * edge_size * edge_size) +
                                  (x * edge_size);
                    stop_index = start_index + small_cube_size - 1;

                    HDassert(start_index < stop_index);
                    HDassert(stop_index <= large_cube_size);

                    mis_match = FALSE;
                    ptr_1 = large_cube_buf_1;
                    expected_value = 0;
                    for(s = 0; s < start_index; s++) {
                        if(*ptr_1 != 0)
                            mis_match = TRUE;
                        ptr_1++;
                    } /* end for */
                    for(; s <= stop_index; s++) {
                        if(*ptr_1 != expected_value)
                            mis_match = TRUE;
                        expected_value++;
                        ptr_1++;
                    } /* end for */
                    for(; s < large_cube_size; s++) {
                        if(*ptr_1 != 0)
                            mis_match = TRUE;
                        ptr_1++;
                    } /* end for */
                    if(mis_match)
                        TestErrPrintf("large cube read from small cube has bad data! Line=%u\n", __LINE__);

                    /* Zero out the buffer for the next pass */
                    HDmemset(large_cube_buf_1 + start_index, 0, small_cube_size * sizeof(uint16_t));
                    
                    x++;
                } while((large_rank >= 2) && (small_rank <= 1) && (x < edge_size));
                w++;
            } while((large_rank >= 3) && (small_rank <= 2) && (w < edge_size));
            v++;
        } while((large_rank >= 4) && (small_rank <= 3) && (v < edge_size));
        u++;
    } while((large_rank >= 5) && (small_rank <= 4) && (u < edge_size));


    /* now we go in the opposite direction, verifying that we can write 
     * from memory to file using selections of different rank that 
     * H5S_select_shape_same() views as being of the same shape.
     *
     * Start by writing small_rank D slices from the in memory large cube, to 
     * the the on disk small cube dataset.  After each write, read the small
     * cube dataset back from disk, and verify that it contains the expected
     * data. Verify that H5S_select_shape_same() returns true on the 
     * memory and file selections.
     */ 

    u = 0;
    do {
        v = 0;
        do {
            w = 0;
            do {
                x = 0;
                do {
                    /* we know that small_rank >= 1 and that large_rank > small_rank
                     * by the assertions at the head of this function.  Thus no
                     * need for another inner loop.
                     */

                    /* zero out the on disk small cube */
                    ret = H5Dwrite(small_cube_dataset, 
                                   H5T_NATIVE_UINT16, 
                                   small_cube_sid, 
                                   small_cube_sid, 
                                   xfer_plist, 
                                   zero_buf);
                    CHECK(ret, FAIL, "H5Dwrite");

                    /* select the portion of the in memory large cube from which we 
                     * are going to write data.
                     */
                    start[0] = (hsize_t)u;
                    start[1] = (hsize_t)v;
                    start[2] = (hsize_t)w;
                    start[3] = (hsize_t)x;
                    start[4] = (hsize_t)0;

                    ret = H5Sselect_hyperslab(mem_large_cube_sid, 
                                              H5S_SELECT_SET,
                                              start_ptr, 
                                              stride_ptr, 
                                              count_ptr, 
                                              block_ptr);
                    CHECK(ret, FAIL, "H5Sselect_hyperslab");


                    /* verify that H5S_select_shape_same() reports the in 
                     * memory slice through the cube selection and the 
                     * on disk full small cube selections as having the same shape.
                     */
                    check = H5S_select_shape_same_test(small_cube_sid, 
                                                       mem_large_cube_sid);
                    VERIFY(check, TRUE, "H5S_select_shape_same_test");


	            /* write the slice from the in memory large cube to the on disk small cube */
                    ret = H5Dwrite(small_cube_dataset, 
                                   H5T_NATIVE_UINT16, 
                                   mem_large_cube_sid, 
                                   small_cube_sid, 
                                   xfer_plist, 
                                   cube_buf);
                    CHECK(ret, FAIL, "H5Dwrite");


                    /* read the on disk small cube into memory */
                    ret = H5Dread(small_cube_dataset, 
                                  H5T_NATIVE_UINT16,
                                  small_cube_sid,
                                  small_cube_sid, 
                                  xfer_plist, 
                                  small_cube_buf_1);
                    CHECK(ret, FAIL, "H5Dread");


                    /* verify that expected data is retrieved */
                    mis_match = FALSE;
                    ptr_1 = small_cube_buf_1;
                    expected_value = (uint16_t)((u * edge_size * edge_size * edge_size * edge_size) +
                                     (v * edge_size * edge_size * edge_size) +
                                     (w * edge_size * edge_size) +
                                     (x * edge_size));
                    for(s = 0; s < small_cube_size; s++) {
                        if(*ptr_1 != expected_value)
                            mis_match = TRUE;
                        expected_value++;
                        ptr_1++;
                    } /* end for */
                    if(mis_match )
                        TestErrPrintf("small cube data don't match! Line=%d\n",__LINE__);
                    
                    x++;
                } while((large_rank >= 2) && (small_rank <= 1) && (x < edge_size));
                w++;
            } while((large_rank >= 3) && (small_rank <= 2) && (w < edge_size));
            v++;
        } while((large_rank >= 4) && (small_rank <= 3) && (v < edge_size));
        u++;
    } while((large_rank >= 5) && (small_rank <= 4) && (u < edge_size));


    /* Now write the contents of the in memory small cube to slices of 
     * the on disk cube.  After each write, read the on disk cube
     * into memeory, and verify that it contains the expected 
     * data.  Verify that H5S_select_shape_same() returns true on 
     * the memory and file selections.
     */

    /* select the entire memory and file cube dataspaces */
    ret = H5Sselect_all(mem_large_cube_sid);
    CHECK(ret, FAIL, "H5Sselect_all");

    ret = H5Sselect_all(file_large_cube_sid);
    CHECK(ret, FAIL, "H5Sselect_all");

    u = 0;
    do {
        v = 0;
        do {
            w = 0;
            do {
                x = 0;
                do {
                    /* we know that small_rank >= 1 and that large_rank > small_rank
                     * by the assertions at the head of this function.  Thus no
                     * need for another inner loop.
                     */

                    /* zero out the on disk cube */
                    ret = H5Dwrite(large_cube_dataset, 
                                   H5T_NATIVE_USHORT, 
                                   mem_large_cube_sid, 
                                   file_large_cube_sid, 
                                   xfer_plist, 
                                   zero_buf);
                    CHECK(ret, FAIL, "H5Dwrite");


                    /* select the portion of the in memory large cube to which we 
                     * are going to write data.
                     */
                    start[0] = (hsize_t)u;
                    start[1] = (hsize_t)v;
                    start[2] = (hsize_t)w;
                    start[3] = (hsize_t)x;
                    start[4] = (hsize_t)0;

                    ret = H5Sselect_hyperslab(file_large_cube_sid, 
                                              H5S_SELECT_SET,
                                              start_ptr, 
                                              stride_ptr, 
                                              count_ptr, 
                                              block_ptr);
                    CHECK(ret, FAIL, "H5Sselect_hyperslab");


                    /* verify that H5S_select_shape_same() reports the in 
                     * memory full selection of the small cube and the 
                     * on disk slice through the large cube selection 
                     * as having the same shape.
                     */
                    check = H5S_select_shape_same_test(small_cube_sid, 
                                                       file_large_cube_sid);
                    VERIFY(check, TRUE, "H5S_select_shape_same_test");


	            /* write the cube from memory to the target slice of the disk cube */
                    ret = H5Dwrite(large_cube_dataset, 
                                   H5T_NATIVE_UINT16, 
                                   small_cube_sid, 
                                   file_large_cube_sid, 
                                   xfer_plist, 
                                   cube_buf);
                    CHECK(ret, FAIL, "H5Dwrite");


                    /* read the on disk cube into memory */
                    ret = H5Sselect_all(file_large_cube_sid);
                    CHECK(ret, FAIL, "H5Sselect_all");

                    ret = H5Dread(large_cube_dataset, 
                                  H5T_NATIVE_UINT16,
                                  mem_large_cube_sid,
                                  file_large_cube_sid, 
                                  xfer_plist, 
                                  large_cube_buf_1);
                    CHECK(ret, FAIL, "H5Dread");


                    /* verify that the expected data and only the 
                     * expected data was read.
                     */
                    start_index = (u * edge_size * edge_size * edge_size * edge_size) +
                                  (v * edge_size * edge_size * edge_size) +
                                  (w * edge_size * edge_size) +
                                  (x * edge_size);
                    stop_index = start_index + small_cube_size - 1;

                    HDassert(start_index < stop_index);
                    HDassert(stop_index <= large_cube_size);

                    mis_match = FALSE;
                    ptr_1 = large_cube_buf_1;
                    expected_value = 0;
                    for(s = 0; s < start_index; s++) {
                        if(*ptr_1 != 0)
                            mis_match = TRUE;
                        ptr_1++;
                    } /* end for */
                    for(; s <= stop_index; s++) {
                        if(*ptr_1 != expected_value)
                            mis_match = TRUE;
                        expected_value++;
                        ptr_1++;
                    } /* end for */
                    for(; s < large_cube_size; s++) {
                        if(*ptr_1 != 0)
                            mis_match = TRUE;
                        ptr_1++;
                    } /* end for */
                    if(mis_match)
                        TestErrPrintf("large cube written from small cube has bad data! Line=%d\n", __LINE__);
                    
                    x++;
                } while((large_rank >= 2) && (small_rank <= 1) && (x < edge_size));
                w++;
            } while((large_rank >= 3) && (small_rank <= 2) && (w < edge_size));
            v++;
        } while((large_rank >= 4) && (small_rank <= 3) && (v < edge_size));
        u++;
    } while((large_rank >= 5) && (small_rank <= 4) && (u < edge_size));

    /* Close memory dataspaces */
    ret = H5Sclose(small_cube_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(mem_large_cube_sid);
    CHECK(ret, FAIL, "H5Sclose");


    /* Close disk dataspace */
    ret = H5Sclose(file_large_cube_sid);
    CHECK(ret, FAIL, "H5Sclose");


    /* Close Datasets */
    ret = H5Dclose(small_cube_dataset);
    CHECK(ret, FAIL, "H5Dclose");

    ret = H5Dclose(large_cube_dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(small_cube_buf_1);
    HDfree(large_cube_buf_1);

}   /* test_select_hyper_contig_dr__run_test() */


/****************************************************************
**
**  test_select_hyper_contig_dr(): Test H5S (dataspace) 
**	selection code with contiguous source and target having 
**	different ranks but the same shape.  We have already
**	tested H5S_shape_same in isolation, so now we try to do 
**	I/O.
**
****************************************************************/
static void
test_select_hyper_contig_dr(hid_t dset_type, hid_t xfer_plist)
{
    int test_num = 0;
    unsigned chunk_edge_size;   /* Size of chunk's dataspace dimensions */
    unsigned edge_size = 6;     /* Size of dataset's dataspace dimensions */
    unsigned small_rank;        /* Current rank of small dataset */
    unsigned large_rank;        /* Current rank of large dataset */
    uint16_t *cube_buf;         /* Buffer for writing cube data */
    uint16_t *zero_buf;         /* Buffer for writing zeroed cube data */
    uint16_t *cube_ptr;         /* Temporary pointer into cube data */
    unsigned max_rank = 5;      /* Max. rank to use */
    size_t max_cube_size;       /* Max. number of elements in largest cube */
    size_t s;                   /* Local index variable */
    unsigned u;                 /* Local index variable */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Contiguous Hyperslabs With Different Rank I/O Functionality\n"));

    /* Compute max. cube size */
    max_cube_size = (size_t)1;
    for(u = 0; u < max_rank; u++)
        max_cube_size *= (size_t)edge_size;

    /* Allocate cube buffer for writing values */
    cube_buf = (uint16_t *)HDmalloc(sizeof(uint16_t) * max_cube_size);
    CHECK(cube_buf, NULL, "HDmalloc");

    /* Initialize the cube buffer */
    cube_ptr = cube_buf;
    for(s = 0; s < max_cube_size; s++)
        *cube_ptr++ = (uint16_t)s;

    /* Allocate cube buffer for zeroing values on disk */
    zero_buf = (uint16_t *)HDcalloc(sizeof(uint16_t), max_cube_size);
    CHECK(zero_buf, NULL, "HDcalloc");

    for(large_rank = 1; large_rank <= max_rank; large_rank++) {
        for(small_rank = 1; small_rank < large_rank; small_rank++) {
            chunk_edge_size = 0;
            test_select_hyper_contig_dr__run_test(test_num, cube_buf, zero_buf,
                    edge_size, chunk_edge_size, small_rank, large_rank,
                    dset_type, xfer_plist);
            test_num++;

            chunk_edge_size = 3;
            test_select_hyper_contig_dr__run_test(test_num, cube_buf, zero_buf,
                    edge_size, chunk_edge_size, small_rank, large_rank,
                    dset_type, xfer_plist);
            test_num++;
        } /* for loop on small rank */
    } /* for loop on large rank */

    HDfree(cube_buf);
    HDfree(zero_buf);

}   /* test_select_hyper_contig_dr() */


/****************************************************************
**
**  test_select_hyper_checker_board_dr__select_checker_board():  
**	Given an n-cube data space with each edge of length 
**	edge_size, and a checker_edge_size either select a checker
**	board selection of the entire cube(if sel_rank == n),
**	or select a checker board selection of a
**	sel_rank dimensional slice through n-cube parallel to the 
**      sel_rank fastest changing indices, with origin (in the
**	higher indices) as indicated by the start array.
**
**	Note that this function, like all its relatives, is
**	hard coded to presume a maximum n-cube rank of 5.
**	While this maximum is declared as a constant, increasing
**	it will require extensive coding in addition to changing
**      the value of the constant.
**
**					JRM -- 9/9/09
**
****************************************************************/
static void
test_select_hyper_checker_board_dr__select_checker_board(hid_t tgt_n_cube_sid,
    unsigned tgt_n_cube_rank, unsigned edge_size, unsigned checker_edge_size,
    unsigned sel_rank, hsize_t sel_start[])
{
    hbool_t		first_selection = TRUE;
    unsigned		n_cube_offset;
    unsigned		sel_offset;
    hsize_t		base_count;
    hsize_t             offset_count;
    hsize_t     	start[SS_DR_MAX_RANK];  /* Offset of hyperslab selection */
    hsize_t     	stride[SS_DR_MAX_RANK]; /* Stride of hyperslab selection */
    hsize_t     	count[SS_DR_MAX_RANK];  /* Count of hyperslab selection */
    hsize_t     	block[SS_DR_MAX_RANK];  /* Block size of hyperslab selection */
    unsigned            i, j, k, l, m;  /* Local index variable */
    unsigned            u;              /* Local index variables */
    herr_t      	ret;            /* Generic return value */

    HDassert(edge_size >= 6);
    HDassert(0 < checker_edge_size);
    HDassert(checker_edge_size <= edge_size);
    HDassert(0 < sel_rank);
    HDassert(sel_rank <= tgt_n_cube_rank);
    HDassert(tgt_n_cube_rank <= SS_DR_MAX_RANK);

    sel_offset = SS_DR_MAX_RANK - sel_rank;
    n_cube_offset = SS_DR_MAX_RANK - tgt_n_cube_rank;
    HDassert(n_cube_offset <= sel_offset);

    /* First, compute the base count (which assumes start == 0
     * for the associated offset) and offset_count (which
     * assumes start == checker_edge_size for the associated
     * offset).
     */
    base_count = edge_size / (checker_edge_size * 2);
    if((edge_size % (checker_edge_size * 2)) > 0)
        base_count++;

    offset_count = (edge_size - checker_edge_size) / (checker_edge_size * 2);
    if(((edge_size - checker_edge_size) % (checker_edge_size * 2)) > 0)
        offset_count++;

    /* Now set up the stride and block arrays, and portions of the start
     * and count arrays that will not be altered during the selection of 
     * the checker board.
     */
    u = 0;
    while(u < n_cube_offset) {
        /* these values should never be used */
        start[u] = 0;
        stride[u] = 0;
        count[u] = 0;
        block[u] = 0;

        u++;
    } /* end while */

    while(u < sel_offset) {
        start[u] = sel_start[u];
        stride[u] = 2 * edge_size;
        count[u] = 1;
        block[u] = 1;

        u++;
    } /* end while */

    while(u < SS_DR_MAX_RANK) {
        stride[u] = 2 * checker_edge_size;
        block[u] = checker_edge_size;

        u++;
    } /* end while */
   
    i = 0;
    do {
        if(0 >= sel_offset) {
            if(i == 0) {
                start[0] = 0;
                count[0] = base_count;
            } /* end if */
            else {
                start[0] = checker_edge_size;
                count[0] = offset_count;
            } /* end else */
        } /* end if */

        j = 0;
        do { 
            if(1 >= sel_offset) {
                if(j == 0 ) {
                    start[1] = 0;
                    count[1] = base_count;
                } /* end if */
                else {
                    start[1] = checker_edge_size;
                    count[1] = offset_count;
                } /* end else */
            } /* end if */

            k = 0;
            do {
                if(2 >= sel_offset) {
                    if(k == 0) {
                        start[2] = 0;
                        count[2] = base_count;
                    } /* end if */
                    else {
                        start[2] = checker_edge_size;
                        count[2] = offset_count;
                    } /* end else */
                } /* end if */

                l = 0;
                do {
                    if(3 >= sel_offset) {
                        if(l == 0) {
                            start[3] = 0;
                            count[3] = base_count;
                        } /* end if */
                        else {
                            start[3] = checker_edge_size;
                            count[3] = offset_count;
                        } /* end else */
                    } /* end if */

                    m = 0;
                    do {
                        if(4 >= sel_offset) {
                            if(m == 0) {
                                start[4] = 0;
                                count[4] = base_count;
                            } /* end if */
                            else {
                                start[4] = checker_edge_size;
                                count[4] = offset_count;
                            } /* end else */
                        } /* end if */

                        if(((i + j + k + l + m) % 2) == 0) {
                            if(first_selection) {
                                first_selection = FALSE; 

                                ret = H5Sselect_hyperslab(tgt_n_cube_sid, 
                                        H5S_SELECT_SET,
                                        &(start[n_cube_offset]), 
                                        &(stride[n_cube_offset]), 
                                        &(count[n_cube_offset]), 
                                        &(block[n_cube_offset]));
                                CHECK(ret, FAIL, "H5Sselect_hyperslab");
                            } /* end if */
                            else {
                                ret = H5Sselect_hyperslab(tgt_n_cube_sid, 
                                        H5S_SELECT_OR,
                                        &(start[n_cube_offset]), 
                                        &(stride[n_cube_offset]), 
                                        &(count[n_cube_offset]), 
                                        &(block[n_cube_offset]));
                                CHECK(ret, FAIL, "H5Sselect_hyperslab");
                            } /* end else */
                        } /* end if */

                        m++;
                    } while((m <= 1) && (4 >= sel_offset));
                    l++;
                } while((l <= 1) && (3 >= sel_offset));
                k++;
            } while((k <= 1) && (2 >= sel_offset));
            j++;
        } while((j <= 1) && (1 >= sel_offset));
        i++;
    } while((i <= 1) && (0 >= sel_offset));

    /* Wierdness alert:
     *
     * Some how, it seems that selections can extend beyond the
     * boundaries of the target data space -- hence the following
     * code to manually clip the selection back to the data space
     * proper.
     */
    for(u = 0; u < SS_DR_MAX_RANK; u++) {
        start[u]  = 0;
        stride[u] = edge_size;
        count[u]  = 1;
        block[u]  = edge_size;
    } /* end for */

    ret = H5Sselect_hyperslab(tgt_n_cube_sid, H5S_SELECT_AND, start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");
} /* test_select_hyper_checker_board_dr__select_checker_board() */


/****************************************************************
**
**  test_select_hyper_checker_board_dr__verify_data(): 
**
**	Examine the supplied buffer to see if it contains the 
**	expected data.  Return TRUE if it does, and FALSE 
**      otherwise.
**
**	The supplied buffer is presumed to contain the results
**	of read or writing a checkerboard selection of an 
**	n-cube, or a checkerboard selection of an m (1 <= m < n)
**	dimensional slice through an n-cube parallel to the 
**      fastest changing indices.  
**
**	It is further presumed that the buffer was zeroed before
**	the read, and that the n-cube was initialize with the 
**      natural numbers listed in order from the origin along 
**      the fastest changing axis.
**
**      Thus for a 10x10x10 3-cube, the value stored in location
**	(x, y, z) (assuming that z is the fastest changing index
**	and x the slowest) is assumed to be:
**
**		(10 * 10 * x) + (10 * y) + z
**
**	Thus, if the buffer contains the result of reading a 
**	checker board selection of a 10x10x10 3-cube, location
**	(x, y, z) will contain zero if it is not in a checker,
**	and 100x + 10y + z if (x, y, z) is in a checker.
**
**	If the buffer contains the result of reading a 3 
**	dimensional slice (parallel to the three fastest changing
**	indices) through an n cube (n > 3), then the expected 
**	values in the buffer will be the same, save that we will
**	add a constant determined by the origin of the 3-cube 
**	in the n-cube.
**
**	Finally, the function presumes that the first element 
**	of the buffer resides either at the origin of either
**	a selected or an unselected checker.
**
****************************************************************/
static hbool_t
test_select_hyper_checker_board_dr__verify_data(uint16_t * buf_ptr,
    unsigned rank, unsigned edge_size, unsigned checker_edge_size,
    uint16_t first_expected_val, hbool_t buf_starts_in_checker)
{
    hbool_t good_data = TRUE;
    hbool_t in_checker;
    hbool_t start_in_checker[5];
    uint16_t expected_value;
    uint16_t * val_ptr;
    unsigned i, j, k, l, m;              /* to track position in n-cube */
    unsigned v, w, x, y, z;              /* to track position in checker */
    const unsigned test_max_rank = 5;    /* code changes needed if this is increased */

    HDassert(buf_ptr != NULL);
    HDassert(0 < rank);
    HDassert(rank <= test_max_rank);
    HDassert(edge_size >= 6);
    HDassert(0 < checker_edge_size);
    HDassert(checker_edge_size <= edge_size);
    HDassert(test_max_rank <= SS_DR_MAX_RANK);

    val_ptr = buf_ptr;
    expected_value = first_expected_val;

    i = 0;
    v = 0;
    start_in_checker[0] = buf_starts_in_checker;
    do {
        if(v >= checker_edge_size) {
            start_in_checker[0] = !start_in_checker[0];
            v = 0;
        } /* end if */

        j = 0;
        w = 0;
        start_in_checker[1] = start_in_checker[0];
        do {
            if(w >= checker_edge_size) {
                start_in_checker[1] = !start_in_checker[1];
                w = 0;
            } /* end if */

            k = 0;
            x = 0;
            start_in_checker[2] = start_in_checker[1];
            do {
                if(x >= checker_edge_size) {
                    start_in_checker[2] = !start_in_checker[2];
                    x = 0;
                } /* end if */

                l = 0;
                y = 0;
                start_in_checker[3] = start_in_checker[2];
                do { 
                    if(y >= checker_edge_size) {
                        start_in_checker[3] = ! start_in_checker[3];
                        y = 0;
                    } /* end if */

                    m = 0;
                    z = 0;
                    in_checker = start_in_checker[3];
                    do {
                        if(z >= checker_edge_size) {
                            in_checker = ! in_checker;
                            z = 0;
                        } /* end if */
         
                        if(in_checker) {
                            if(*val_ptr != expected_value)
                                good_data = FALSE;
                        } /* end if */
                        else {
                            if(*val_ptr != 0)
                                good_data = FALSE;
                        } /* end else */
 
                        val_ptr++;
                        expected_value++;
 
                        m++;
                        z++;
                    } while((rank >= (test_max_rank - 4)) && (m < edge_size));
                    l++;
                    y++;
                } while((rank >= (test_max_rank - 3)) && (l < edge_size));
                k++;
                x++;
            } while((rank >= (test_max_rank - 2)) && (k < edge_size));
            j++;
            w++;
        } while((rank >= (test_max_rank - 1)) && (j < edge_size));
        i++;
        v++;
    } while((rank >= test_max_rank) && (i < edge_size));

    return(good_data);
} /* test_select_hyper_checker_board_dr__verify_data() */


/****************************************************************
**
**  test_select_hyper_checker_board_dr__run_test(): Test H5S 
**      (dataspace) selection code with checker board source and 
**	target selections having different ranks but the same 
**	shape.  We have already tested H5S_shape_same in 
**	isolation, so now we try to do I/O.
**
****************************************************************/
static void
test_select_hyper_checker_board_dr__run_test(int test_num, const uint16_t *cube_buf,
    const uint16_t *zero_buf, unsigned edge_size, unsigned checker_edge_size,
    unsigned chunk_edge_size, unsigned small_rank, unsigned large_rank,
    hid_t dset_type, hid_t xfer_plist)
{
    hbool_t		data_ok;
    hid_t               fapl;                   /* File access property list */
    hid_t		fid;			/* HDF5 File IDs		*/
    hid_t		full_small_cube_sid;    /* Dataspace for small cube w/all selection */
    hid_t		mem_small_cube_sid;
    hid_t		file_small_cube_sid;
    hid_t		full_large_cube_sid;    /* Dataspace for large cube w/all selection */
    hid_t		mem_large_cube_sid;
    hid_t		file_large_cube_sid;
    hid_t		small_cube_dcpl_id = H5P_DEFAULT;   /* DCPL for small cube dataset */
    hid_t		large_cube_dcpl_id = H5P_DEFAULT;   /* DCPL for large cube dataset */
    hid_t		small_cube_dataset;	/* Dataset ID			*/
    hid_t		large_cube_dataset;	/* Dataset ID			*/
    unsigned		small_rank_offset;      /* Rank offset of slice */
    const unsigned	test_max_rank = 5;  /* must update code if this changes */
    size_t              start_index;            /* Offset within buffer to begin inspecting */
    size_t              stop_index;             /* Offset within buffer to end inspecting */
    uint16_t		expected_value;
    uint16_t	      * small_cube_buf_1;
    uint16_t	      * large_cube_buf_1;
    uint16_t	      * ptr_1;
    size_t              small_cube_size;    /* Number of elements in small cube */
    size_t              large_cube_size;    /* Number of elements in large cube */
    hsize_t		dims[SS_DR_MAX_RANK];
    hsize_t		chunk_dims[SS_DR_MAX_RANK];
    hsize_t     	sel_start[SS_DR_MAX_RANK];
    unsigned            u, v, w, x;     /* Local index variables */
    size_t              s;              /* Local index variable */
    htri_t      	check;          /* Shape comparison return value */
    herr_t      	ret;            /* Generic return value */

    MESSAGE(7, ("\tn-cube slice through m-cube I/O test %d.\n", test_num));
    MESSAGE(7, ("\tranks = %d/%d, edge_size = %d, checker_edge_size = %d, chunk_edge_size = %d.\n", small_rank, large_rank, edge_size, checker_edge_size, chunk_edge_size));

    HDassert(edge_size >= 6);
    HDassert(checker_edge_size > 0);
    HDassert(checker_edge_size <= edge_size);
    HDassert(edge_size >= chunk_edge_size);
    HDassert((chunk_edge_size == 0) || (chunk_edge_size >= 3));
    HDassert(small_rank > 0);
    HDassert(small_rank < large_rank);
    HDassert(large_rank <= test_max_rank);
    HDassert(test_max_rank <= SS_DR_MAX_RANK);

    /* Compute cube sizes */
    small_cube_size = large_cube_size = (size_t)1;
    for(u = 0; u < large_rank; u++) {
        if(u < small_rank)
            small_cube_size *= (size_t)edge_size;

        large_cube_size *= (size_t)edge_size;
    } /* end for */
    HDassert(large_cube_size < (size_t)(UINT_MAX));

    small_rank_offset = test_max_rank - small_rank;
    HDassert(small_rank_offset >= 1);

    /* also, at present, we use 16 bit values in this test --
     * hence the following assertion.  Delete it if we convert
     * to 32 bit values.
     */
    HDassert(large_cube_size < (size_t)(64 * 1024));


    /* Allocate & initialize buffers */
    small_cube_buf_1 = (uint16_t *)HDcalloc(sizeof(uint16_t), small_cube_size);
    CHECK(small_cube_buf_1, NULL, "HDcalloc");
    large_cube_buf_1 = (uint16_t *)HDcalloc(sizeof(uint16_t), large_cube_size);
    CHECK(large_cube_buf_1, NULL, "HDcalloc");


    /* Create a dataset transfer property list */
    fapl = H5Pcreate(H5P_FILE_ACCESS);
    CHECK(fapl, FAIL, "H5Pcreate");

    /* Use the 'core' VFD for this test */
    ret = H5Pset_fapl_core(fapl, (size_t)(1024 * 1024), FALSE);
    CHECK(ret, FAIL, "H5Pset_fapl_core");

    /* Create file */
    fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
    CHECK(fid, FAIL, "H5Fcreate");

    /* Close file access property list */
    ret = H5Pclose(fapl);
    CHECK(ret, FAIL, "H5Pclose");


    /* setup dims: */
    dims[0] = dims[1] = dims[2] = dims[3] = dims[4] = edge_size;


    /* Create small cube dataspaces */
    full_small_cube_sid = H5Screate_simple((int)small_rank, dims, NULL);
    CHECK(full_small_cube_sid, FAIL, "H5Screate_simple");

    mem_small_cube_sid = H5Screate_simple((int)small_rank, dims, NULL);
    CHECK(mem_small_cube_sid, FAIL, "H5Screate_simple");

    file_small_cube_sid = H5Screate_simple((int)small_rank, dims, NULL);
    CHECK(file_small_cube_sid, FAIL, "H5Screate_simple");


    /* Create large cube dataspace */
    full_large_cube_sid = H5Screate_simple((int)large_rank, dims, NULL);
    CHECK(full_large_cube_sid, FAIL, "H5Screate_simple");

    mem_large_cube_sid = H5Screate_simple((int)large_rank, dims, NULL);
    CHECK(mem_large_cube_sid, FAIL, "H5Screate_simple");

    file_large_cube_sid = H5Screate_simple((int)large_rank, dims, NULL);
    CHECK(file_large_cube_sid, FAIL, "H5Screate_simple");


    /* if chunk edge size is greater than zero, set up the small and
     * large data set creation property lists to specify chunked 
     * datasets.
     */
    if(chunk_edge_size > 0) {
        chunk_dims[0] = chunk_dims[1] = 
		chunk_dims[2] = chunk_dims[3] = chunk_dims[4] = chunk_edge_size;

        small_cube_dcpl_id = H5Pcreate(H5P_DATASET_CREATE);
        CHECK(small_cube_dcpl_id, FAIL, "H5Pcreate");

        ret = H5Pset_layout(small_cube_dcpl_id, H5D_CHUNKED);
        CHECK(ret, FAIL, "H5Pset_layout");

        ret = H5Pset_chunk(small_cube_dcpl_id, (int)small_rank, chunk_dims);
        CHECK(ret, FAIL, "H5Pset_chunk");


        large_cube_dcpl_id = H5Pcreate(H5P_DATASET_CREATE);
        CHECK(large_cube_dcpl_id, FAIL, "H5Pcreate");

        ret = H5Pset_layout(large_cube_dcpl_id, H5D_CHUNKED);
        CHECK(ret, FAIL, "H5Pset_layout");

        ret = H5Pset_chunk(large_cube_dcpl_id, (int)large_rank, chunk_dims);
        CHECK(ret, FAIL, "H5Pset_chunk");
    } /* end if */


    /* create the small cube dataset */
    small_cube_dataset = H5Dcreate2(fid, "small_cube_dataset", dset_type, 
            file_small_cube_sid, H5P_DEFAULT, small_cube_dcpl_id, H5P_DEFAULT);
    CHECK(small_cube_dataset, FAIL, "H5Dcreate2");

    /* Close non-default small dataset DCPL */
    if(small_cube_dcpl_id != H5P_DEFAULT) {
        ret = H5Pclose(small_cube_dcpl_id);
        CHECK(ret, FAIL, "H5Pclose");
    } /* end if */

    /* create the large cube dataset */
    large_cube_dataset = H5Dcreate2(fid, "large_cube_dataset", dset_type, 
            file_large_cube_sid, H5P_DEFAULT, large_cube_dcpl_id, H5P_DEFAULT);
    CHECK(large_cube_dataset, FAIL, "H5Dcreate2");

    /* Close non-default large dataset DCPL */
    if(large_cube_dcpl_id != H5P_DEFAULT) {
        ret = H5Pclose(large_cube_dcpl_id);
        CHECK(ret, FAIL, "H5Pclose");
    } /* end if */


    /* write initial data to the on disk datasets */
    ret = H5Dwrite(small_cube_dataset, H5T_NATIVE_UINT16, full_small_cube_sid, 
            full_small_cube_sid, xfer_plist, cube_buf);
    CHECK(ret, FAIL, "H5Dwrite");

    ret = H5Dwrite(large_cube_dataset, H5T_NATIVE_UINT16, full_large_cube_sid, 
            full_large_cube_sid, xfer_plist, cube_buf);
    CHECK(ret, FAIL, "H5Dwrite");


    /* read initial small cube data from disk and verify that it is as expected. */
    ret = H5Dread(small_cube_dataset, H5T_NATIVE_UINT16, full_small_cube_sid, 
            full_small_cube_sid, xfer_plist, small_cube_buf_1);
    CHECK(ret, FAIL, "H5Dread");

    /* Check that the data is valid */
    verify_select_hyper_contig_dr__run_test(small_cube_buf_1, small_cube_size,
        edge_size, small_rank);

    /* read initial large cube data from disk and verify that it is as expected. */
    ret = H5Dread(large_cube_dataset, H5T_NATIVE_UINT16, full_large_cube_sid, 
            full_large_cube_sid, xfer_plist, large_cube_buf_1);
    CHECK(ret, FAIL, "H5Dread");

    /* Check that the data is valid */
    verify_select_hyper_contig_dr__run_test(large_cube_buf_1, large_cube_size,
        edge_size, large_rank);


    /* first, verify that we can read from disk correctly using selections
     * of different rank that H5S_select_shape_same() views as being of the
     * same shape.
     *
     * Start by reading small_rank-D slice from the on disk large cube, and 
     * verifying that the data read is correct.  Verify that H5S_select_shape_same() 
     * returns true on the memory and file selections.
     *
     * The first step is to set up the needed checker board selection in the 
     * in memory small small cube
     */

    sel_start[0] = sel_start[1] = sel_start[2] = sel_start[3] = sel_start[4] = 0;

    test_select_hyper_checker_board_dr__select_checker_board(mem_small_cube_sid,
                                                             small_rank,
                                                             edge_size,
                                                             checker_edge_size,
                                                             small_rank,
                                                             sel_start);

    /* now read slices from the large, on-disk cube into the small cube. 
     * Note how we adjust sel_start only in the dimensions peculiar to the 
     * large cube.
     */

    u = 0;
    do {
        if(small_rank_offset > 0)
            sel_start[0] = u;

        v = 0;
        do {
            if(small_rank_offset > 1)
                sel_start[1] = v;

            w = 0;
            do {
                if(small_rank_offset > 2)
                    sel_start[2] = w;

                x = 0;
                do {
                    if(small_rank_offset > 3)
                        sel_start[3] = x;

                    /* we know that small_rank >= 1 and that large_rank > small_rank
                     * by the assertions at the head of this function.  Thus no
                     * need for another inner loop.
                     */

                    HDassert((sel_start[0] == 0) || (0 < small_rank_offset));
                    HDassert((sel_start[1] == 0) || (1 < small_rank_offset));
                    HDassert((sel_start[2] == 0) || (2 < small_rank_offset));
                    HDassert((sel_start[3] == 0) || (3 < small_rank_offset));
                    HDassert((sel_start[4] == 0) || (4 < small_rank_offset));

                    test_select_hyper_checker_board_dr__select_checker_board
                    (
                      file_large_cube_sid,
                      large_rank,
                      edge_size,
                      checker_edge_size,
                      small_rank,
                      sel_start
                    );

                    /* verify that H5S_select_shape_same() reports the two 
                     * selections as having the same shape.
                     */
                    check = H5S_select_shape_same_test(mem_small_cube_sid, 
                                                       file_large_cube_sid);
                    VERIFY(check, TRUE, "H5S_select_shape_same_test");

                    /* zero the buffer that we will be using for reading */
                    HDmemset(small_cube_buf_1, 0, sizeof(*small_cube_buf_1) * small_cube_size);

                    /* Read selection from disk */
                    ret = H5Dread(large_cube_dataset,
                                  H5T_NATIVE_UINT16,
                                  mem_small_cube_sid,
                                  file_large_cube_sid,
                                  xfer_plist,
                                  small_cube_buf_1);
                    CHECK(ret, FAIL, "H5Dread");

                    expected_value = (uint16_t)
                                     ((u * edge_size * edge_size * edge_size * edge_size) +
                                      (v * edge_size * edge_size * edge_size) +
                                      (w * edge_size * edge_size) +
                                      (x * edge_size));

                    data_ok = test_select_hyper_checker_board_dr__verify_data
                              (
                                small_cube_buf_1,
                                small_rank,
                                edge_size,
                                checker_edge_size,
                                expected_value,
                                (hbool_t)TRUE
                              );
                    if(!data_ok)
                        TestErrPrintf("small cube read from largecube has bad data! Line=%d\n",__LINE__);

                    x++;
                } while((large_rank >= (test_max_rank - 3)) && 
                        (small_rank <= (test_max_rank - 4)) && (x < edge_size));
                w++;
            } while((large_rank >= (test_max_rank - 2)) && 
                    (small_rank <= (test_max_rank - 3)) && (w < edge_size));
            v++;
        } while((large_rank >= (test_max_rank - 1)) && 
                (small_rank <= (test_max_rank - 2)) && (v < edge_size));
        u++;
    } while((large_rank >= test_max_rank) && 
            (small_rank <= (test_max_rank - 1)) && (u < edge_size));
        

    /* similarly, read the on disk small cube into slices through the in memory
     * large cube, and verify that the correct data (and only the correct data)
     * is read.
     */

    /* select a checker board in the file small cube dataspace */
    sel_start[0] = sel_start[1] = sel_start[2] = sel_start[3] = sel_start[4] = 0;
    test_select_hyper_checker_board_dr__select_checker_board(file_small_cube_sid,
                                                             small_rank,
                                                             edge_size,
                                                             checker_edge_size,
                                                             small_rank,
                                                             sel_start);


    u = 0;
    do {
        if(0 < small_rank_offset)
            sel_start[0] = u;

        v = 0;
        do {
            if(1 < small_rank_offset)
                sel_start[1] = v;

            w = 0;
            do {
                if(2 < small_rank_offset)
                    sel_start[2] = w;

                x = 0;
                do {
                    if(3 < small_rank_offset)
                        sel_start[3] = x;

                    /* we know that small_rank >= 1 and that large_rank > small_rank
                     * by the assertions at the head of this function.  Thus no
                     * need for another inner loop.
                     */

                    HDassert((sel_start[0] == 0) || (0 < small_rank_offset));
                    HDassert((sel_start[1] == 0) || (1 < small_rank_offset));
                    HDassert((sel_start[2] == 0) || (2 < small_rank_offset));
                    HDassert((sel_start[3] == 0) || (3 < small_rank_offset));
                    HDassert((sel_start[4] == 0) || (4 < small_rank_offset));

                    test_select_hyper_checker_board_dr__select_checker_board
                    (
                      mem_large_cube_sid,
                      large_rank,
                      edge_size,
                      checker_edge_size,
                      small_rank,
                      sel_start
                    );

                    /* verify that H5S_select_shape_same() reports the two 
                     * selections as having the same shape.
                     */
                    check = H5S_select_shape_same_test(file_small_cube_sid, 
                                                       mem_large_cube_sid);
                    VERIFY(check, TRUE, "H5S_select_shape_same_test");


                    /* zero out the in memory large cube */
                    HDmemset(large_cube_buf_1, 0, sizeof(*large_cube_buf_1) * large_cube_size);

                    /* Read selection from disk */
                    ret = H5Dread(small_cube_dataset,
                                  H5T_NATIVE_UINT16,
                                  mem_large_cube_sid,
                                  file_small_cube_sid,
                                  xfer_plist,
                                  large_cube_buf_1);
                    CHECK(ret, FAIL, "H5Dread");


                    /* verify that the expected data and only the 
                     * expected data was read.
                     */
                    data_ok = TRUE;
                    ptr_1 = large_cube_buf_1;
                    expected_value = 0;
                    start_index = (u * edge_size * edge_size * edge_size * edge_size) +
                                  (v * edge_size * edge_size * edge_size) +
                                  (w * edge_size * edge_size) +
                                  (x * edge_size);
                    stop_index = start_index + small_cube_size - 1;

                    HDassert( start_index < stop_index );
                    HDassert( stop_index <= large_cube_size );

                    /* verify that the large cube contains only zeros before the slice */
                    for(s = 0; s < start_index; s++) {
                        if(*ptr_1 != 0)
                            data_ok = FALSE;
                        ptr_1++;
                    } /* end for */
                    HDassert(s == start_index);

                    data_ok &= test_select_hyper_checker_board_dr__verify_data
                               (
                                 ptr_1,
                                 small_rank,
                                 edge_size,
                                 checker_edge_size,
                                 (uint16_t)0,
                                 (hbool_t)TRUE
                              );

                    ptr_1 += small_cube_size;
                    s += small_cube_size;

                    HDassert(s == stop_index + 1);

                    /* verify that the large cube contains only zeros after the slice */
                    for(s = stop_index + 1; s < large_cube_size; s++) {
                        if(*ptr_1 != 0)
                            data_ok = FALSE;
                        ptr_1++;
                    } /* end for */
                    if(!data_ok)
                        TestErrPrintf("large cube read from small cube has bad data! Line=%d\n",__LINE__);

                    x++;
                } while((large_rank >= (test_max_rank - 3)) && 
                        (small_rank <= (test_max_rank - 4)) && (x < edge_size));
                w++;
            } while((large_rank >= (test_max_rank - 2)) && 
                    (small_rank <= (test_max_rank - 3)) && (w < edge_size));
            v++;
        } while((large_rank >= (test_max_rank - 1)) && 
                (small_rank <= (test_max_rank - 2)) && (v < edge_size));
        u++;
    } while((large_rank >= test_max_rank) && 
            (small_rank <= (test_max_rank - 1)) && (u < edge_size));


    /* now we go in the opposite direction, verifying that we can write 
     * from memory to file using selections of different rank that 
     * H5S_select_shape_same() views as being of the same shape.
     *
     * Start by writing small_rank D slices from the in memory large cube, to 
     * the the on disk small cube dataset.  After each write, read the small
     * cube dataset back from disk, and verify that it contains the expected
     * data. Verify that H5S_select_shape_same() returns true on the 
     * memory and file selections.
     */ 

    /* select a checker board in the file small cube dataspace */
    sel_start[0] = sel_start[1] = sel_start[2] = sel_start[3] = sel_start[4] = 0;
    test_select_hyper_checker_board_dr__select_checker_board(file_small_cube_sid,
                                                             small_rank,
                                                             edge_size,
                                                             checker_edge_size,
                                                             small_rank,
                                                             sel_start);

    u = 0;
    do {
        if(small_rank_offset > 0)
            sel_start[0] = u;

        v = 0;
        do {
            if(small_rank_offset > 1)
                sel_start[1] = v;

            w = 0;
            do {
                if(small_rank_offset > 2)
                    sel_start[2] = w;

                x = 0;
                do {
                    if(small_rank_offset > 3)
                        sel_start[3] = x;

                    /* zero out the on disk small cube */
                    ret = H5Dwrite(small_cube_dataset, 
                                   H5T_NATIVE_UINT16, 
                                   full_small_cube_sid, 
                                   full_small_cube_sid, 
                                   xfer_plist, 
                                   zero_buf);
                    CHECK(ret, FAIL, "H5Dwrite");


                    /* we know that small_rank >= 1 and that large_rank > small_rank
                     * by the assertions at the head of this function.  Thus no
                     * need for another inner loop.
                     */

                    HDassert((sel_start[0] == 0) || (0 < small_rank_offset));
                    HDassert((sel_start[1] == 0) || (1 < small_rank_offset));
                    HDassert((sel_start[2] == 0) || (2 < small_rank_offset));
                    HDassert((sel_start[3] == 0) || (3 < small_rank_offset));
                    HDassert((sel_start[4] == 0) || (4 < small_rank_offset));

                    test_select_hyper_checker_board_dr__select_checker_board
                    (
                      mem_large_cube_sid,
                      large_rank,
                      edge_size,
                      checker_edge_size,
                      small_rank,
                      sel_start
                    );

                    /* verify that H5S_select_shape_same() reports the two 
                     * selections as having the same shape.
                     */
                    check = H5S_select_shape_same_test(file_small_cube_sid, 
                                                       mem_large_cube_sid);
                    VERIFY(check, TRUE, "H5S_select_shape_same_test");


	            /* write the slice from the in memory large cube to the 
                     * on disk small cube 
                     */
                    ret = H5Dwrite(small_cube_dataset, 
                                   H5T_NATIVE_UINT16, 
                                   mem_large_cube_sid, 
                                   file_small_cube_sid, 
                                   xfer_plist, 
                                   cube_buf);
                    CHECK(ret, FAIL, "H5Dwrite");


                    /* zero the buffer that we will be using for reading */
                    HDmemset(small_cube_buf_1, 0, sizeof(*small_cube_buf_1) * small_cube_size);

                    /* read the on disk small cube into memory */
                    ret = H5Dread(small_cube_dataset, 
                                  H5T_NATIVE_UINT16,
                                  full_small_cube_sid,
                                  full_small_cube_sid, 
                                  xfer_plist, 
                                  small_cube_buf_1);
                    CHECK(ret, FAIL, "H5Dread");

                    expected_value = (uint16_t)
                                     ((u * edge_size * edge_size * edge_size * edge_size) +
                                      (v * edge_size * edge_size * edge_size) +
                                      (w * edge_size * edge_size) +
                                      (x * edge_size));

                    data_ok = test_select_hyper_checker_board_dr__verify_data
                              (
                                small_cube_buf_1,
                                small_rank,
                                edge_size,
                                checker_edge_size,
                                expected_value,
                                (hbool_t)TRUE
                              );
                    if(!data_ok)
                        TestErrPrintf("small cube read from largecube has bad data! Line=%d\n",__LINE__);

                    x++;
                } while((large_rank >= (test_max_rank - 3)) && 
                        (small_rank <= (test_max_rank - 4)) && (x < edge_size));
                w++;
            } while((large_rank >= (test_max_rank - 2)) && 
                    (small_rank <= (test_max_rank - 3)) && (w < edge_size));
            v++;
        } while((large_rank >= (test_max_rank - 1)) && 
                (small_rank <= (test_max_rank - 2)) && (v < edge_size));
        u++;
    } while((large_rank >= test_max_rank) && 
            (small_rank <= (test_max_rank - 1)) && (u < edge_size));


    /* Now write checker board selections of the entries in memory 
     * small cube to slices of the on disk cube.  After each write, 
     * read the on disk large cube * into memeory, and verify that 
     * it contains the expected * data.  Verify that 
     * H5S_select_shape_same() returns true on the memory and file 
     * selections.
     */

    /* select a checker board in the in memory small cube dataspace */
    sel_start[0] = sel_start[1] = sel_start[2] = sel_start[3] = sel_start[4] = 0;
    test_select_hyper_checker_board_dr__select_checker_board(mem_small_cube_sid,
                                                             small_rank,
                                                             edge_size,
                                                             checker_edge_size,
                                                             small_rank,
                                                             sel_start);

    u = 0;
    do {
        if(small_rank_offset > 0)
            sel_start[0] = u;

        v = 0;
        do {
            if(small_rank_offset > 1)
                sel_start[1] = v;

            w = 0;
            do {
                if(small_rank_offset > 2)
                    sel_start[2] = w;

                x = 0;
                do {
                    if(small_rank_offset > 3)
                        sel_start[3] = x;

                    /* zero out the on disk cube */
                    ret = H5Dwrite(large_cube_dataset, 
                                   H5T_NATIVE_USHORT, 
                                   full_large_cube_sid, 
                                   full_large_cube_sid, 
                                   xfer_plist, 
                                   zero_buf);
                    CHECK(ret, FAIL, "H5Dwrite");

                    /* we know that small_rank >= 1 and that large_rank > small_rank
                     * by the assertions at the head of this function.  Thus no
                     * need for another inner loop.
                     */

                    HDassert((sel_start[0] == 0) || (0 < small_rank_offset));
                    HDassert((sel_start[1] == 0) || (1 < small_rank_offset));
                    HDassert((sel_start[2] == 0) || (2 < small_rank_offset));
                    HDassert((sel_start[3] == 0) || (3 < small_rank_offset));
                    HDassert((sel_start[4] == 0) || (4 < small_rank_offset));


                    test_select_hyper_checker_board_dr__select_checker_board
                    (
                      file_large_cube_sid,
                      large_rank,
                      edge_size,
                      checker_edge_size,
                      small_rank,
                      sel_start
                    );

                    /* verify that H5S_select_shape_same() reports the two 
                     * selections as having the same shape.
                     */
                    check = H5S_select_shape_same_test(file_large_cube_sid, 
                                                       mem_small_cube_sid);
                    VERIFY(check, TRUE, "H5S_select_shape_same_test");


	            /* write the checker board selection of the in memory
                     * small cube to a slice through the on disk large
                     * cube.
                     */
                    ret = H5Dwrite(large_cube_dataset, 
                                   H5T_NATIVE_UINT16, 
                                   mem_small_cube_sid, 
                                   file_large_cube_sid, 
                                   xfer_plist, 
                                   cube_buf);
                    CHECK(ret, FAIL, "H5Dwrite");


                    /* zero out the in memory large cube */
                    HDmemset(large_cube_buf_1, 0, sizeof(*large_cube_buf_1) * large_cube_size);

                    /* read the on disk large cube into memory */
                    ret = H5Dread(large_cube_dataset, 
                                  H5T_NATIVE_UINT16,
                                  full_large_cube_sid,
                                  full_large_cube_sid, 
                                  xfer_plist, 
                                  large_cube_buf_1);
                    CHECK(ret, FAIL, "H5Dread");


                    /* verify that the expected data and only the 
                     * expected data was written to the on disk large
                     * cube.
                     */
                    data_ok = TRUE;
                    ptr_1 = large_cube_buf_1;
                    expected_value = 0;
                    start_index = (u * edge_size * edge_size * edge_size * edge_size) +
                                  (v * edge_size * edge_size * edge_size) +
                                  (w * edge_size * edge_size) +
                                  (x * edge_size);
                    stop_index = start_index + small_cube_size - 1;

                    HDassert( start_index < stop_index );
                    HDassert( stop_index <= large_cube_size );

                    /* verify that the large cube contains only zeros before the slice */
                    for(s = 0; s < start_index; s++) {
                        if(*ptr_1 != 0)
                            data_ok = FALSE;
                        ptr_1++;
                    } /* end for */
                    HDassert(s == start_index);

                    /* verify that the slice contains the expected data */
                    data_ok &= test_select_hyper_checker_board_dr__verify_data
                               (
                                 ptr_1,
                                 small_rank,
                                 edge_size,
                                 checker_edge_size,
                                 (uint16_t)0,
                                 (hbool_t)TRUE
                              );

                    ptr_1 += small_cube_size;
                    s += small_cube_size;

                    HDassert(s == stop_index + 1);

                    /* verify that the large cube contains only zeros after the slice */
                    for(s = stop_index + 1; s < large_cube_size; s++) {
                        if(*ptr_1 != 0)
                            data_ok = FALSE;
                        ptr_1++;
                    } /* end for */
                    if(!data_ok)
                        TestErrPrintf("large cube written from small cube has bad data! Line=%d\n",__LINE__);

                    x++;
                } while((large_rank >= (test_max_rank - 3)) && 
                        (small_rank <= (test_max_rank - 4)) && (x < edge_size));
                w++;
            } while((large_rank >= (test_max_rank - 2)) && 
                    (small_rank <= (test_max_rank - 3)) && (w < edge_size));
            v++;
        } while((large_rank >= (test_max_rank - 1)) && 
                (small_rank <= (test_max_rank - 2)) && (v < edge_size));
        u++;
    } while((large_rank >= test_max_rank) && 
            (small_rank <= (test_max_rank - 1)) && (u < edge_size));
                    

    /* Close memory dataspaces */
    ret = H5Sclose(full_small_cube_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(full_large_cube_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(mem_small_cube_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(mem_large_cube_sid);
    CHECK(ret, FAIL, "H5Sclose");


    /* Close disk dataspace */
    ret = H5Sclose(file_small_cube_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(file_large_cube_sid);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Datasets */
    ret = H5Dclose(small_cube_dataset);
    CHECK(ret, FAIL, "H5Dclose");

    ret = H5Dclose(large_cube_dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(small_cube_buf_1);
    HDfree(large_cube_buf_1);

}   /* test_select_hyper_checker_board_dr__run_test() */


/****************************************************************
**
**  test_select_hyper_checker_board_dr(): Test H5S (dataspace) 
**	selection code with checkerboard source and target having 
**	different ranks but the same shape.  We have already
**	tested H5S_shape_same in isolation, so now we try to do 
**	I/O.
**
**	This is just an initial smoke check, so we will work 
**	with a slice through a cube only.
**
****************************************************************/
static void
test_select_hyper_checker_board_dr(hid_t dset_type, hid_t xfer_plist)
{
    uint16_t *cube_buf;         /* Buffer for writing cube data */
    uint16_t *cube_ptr;         /* Temporary pointer into cube data */
    uint16_t *zero_buf;         /* Buffer for writing zeroed cube data */
    int test_num = 0;
    unsigned checker_edge_size = 2; /* Size of checkerboard dimension */
    unsigned chunk_edge_size;   /* Size of chunk's dataspace dimensions */
    unsigned edge_size = 6;     /* Size of dataset's dataspace dimensions */
    unsigned small_rank;        /* Current rank of small dataset */
    unsigned large_rank;        /* Current rank of large dataset */
    unsigned max_rank = 5;      /* Max. rank to use */
    size_t max_cube_size;       /* Max. number of elements in largest cube */
    size_t s;                   /* Local index variable */
    unsigned u;                 /* Local index variable */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Checker Board Hyperslabs With Different Rank I/O Functionality\n"));

    /* Compute max. cube size */
    max_cube_size = (size_t)1;
    for(u = 0; u < max_rank; u++)
        max_cube_size *= (size_t)(edge_size + 1);

    /* Allocate cube buffer for writing values */
    cube_buf = (uint16_t *)HDmalloc(sizeof(uint16_t) * max_cube_size);
    CHECK(cube_buf, NULL, "HDmalloc");

    /* Initialize the cube buffer */
    cube_ptr = cube_buf;
    for(s = 0; s < max_cube_size; s++)
        *cube_ptr++ = (uint16_t)s;

    /* Allocate cube buffer for zeroing values on disk */
    zero_buf = (uint16_t *)HDcalloc(sizeof(uint16_t), max_cube_size);
    CHECK(zero_buf, NULL, "HDcalloc");

    for(large_rank = 1; large_rank <= max_rank; large_rank++) {
        for(small_rank = 1; small_rank < large_rank; small_rank++) {
            chunk_edge_size = 0;
            test_select_hyper_checker_board_dr__run_test(test_num, cube_buf,
                    zero_buf, edge_size, checker_edge_size, chunk_edge_size, small_rank,
                    large_rank, dset_type, xfer_plist);
            test_num++;

            test_select_hyper_checker_board_dr__run_test(test_num, cube_buf,
                    zero_buf,
                    edge_size + 1, checker_edge_size, chunk_edge_size, small_rank,
                    large_rank, dset_type, xfer_plist);
            test_num++;

            chunk_edge_size = 3;
            test_select_hyper_checker_board_dr__run_test(test_num, cube_buf,
                    zero_buf,
                    edge_size, checker_edge_size, chunk_edge_size, small_rank,
                    large_rank, dset_type, xfer_plist);
            test_num++;

            test_select_hyper_checker_board_dr__run_test(test_num, cube_buf,
                    zero_buf,
                    edge_size + 1, checker_edge_size, chunk_edge_size, small_rank,
                    large_rank, dset_type, xfer_plist);
            test_num++;
        } /* for loop on small rank */
    } /* for loop on large rank */

    HDfree(cube_buf);
    HDfree(zero_buf);

}   /* test_select_hyper_checker_board_dr() */


/****************************************************************
**
**  test_select_hyper_copy(): Test H5S (dataspace) selection code.
**      Tests copying hyperslab selections
**
****************************************************************/
static void
test_select_hyper_copy(void)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		data1,data2;	/* Dataset IDs			*/
    hid_t		sid1,sid2,sid3; /* Dataspace IDs		*/
    hsize_t		dims1[] = {SPACE1_DIM1, SPACE1_DIM2, SPACE1_DIM3};
    hsize_t		dims2[] = {SPACE2_DIM1, SPACE2_DIM2};
    hsize_t		dims3[] = {SPACE3_DIM1, SPACE3_DIM2};
    hsize_t		start[SPACE1_RANK];     /* Starting location of hyperslab */
    hsize_t		stride[SPACE1_RANK];    /* Stride of hyperslab */
    hsize_t		count[SPACE1_RANK];     /* Element count of hyperslab */
    hsize_t		block[SPACE1_RANK];     /* Block size of hyperslab */
    uint16_t   *wbuf,       /* buffer to write to disk */
               *rbuf,       /* 1st buffer read from disk */
               *rbuf2,      /* 2nd buffer read from disk */
               *tbuf;       /* temporary buffer pointer */
    int        i,j;        /* Counters */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Hyperslabs with Strides Functionality\n"));

    /* Allocate write & read buffers */
    wbuf = (uint16_t *)HDmalloc(sizeof(uint16_t) * SPACE2_DIM1 * SPACE2_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint16_t *)HDcalloc(sizeof(uint16_t), (size_t)(SPACE3_DIM1 * SPACE3_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");
    rbuf2 = (uint16_t *)HDcalloc(sizeof(uint16_t), (size_t)(SPACE3_DIM1 * SPACE3_DIM2));
    CHECK(rbuf2, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++)
            *tbuf++=(uint16_t)((i*SPACE2_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 2x3x3 count with a stride of 2x4x3 & 1x2x2 block hyperslab for disk dataset */
    start[0] = 0; start[1] = 0; start[2] = 0;
    stride[0] = 2; stride[1] = 4; stride[2] = 3;
    count[0] = 2; count[1] = 3; count[2] = 3;
    block[0] = 1; block[1] = 2; block[2] = 2;
    ret = H5Sselect_hyperslab(sid1, H5S_SELECT_SET, start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select 4x2 count with a stride of 5x5 & 3x3 block hyperslab for memory dataset */
    start[0] = 1; start[1] = 1;
    stride[0] = 5; stride[1] = 5;
    count[0] = 4; count[1] = 2;
    block[0] = 3; block[1] = 3;
    ret = H5Sselect_hyperslab(sid2, H5S_SELECT_SET, start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Make a copy of the dataspace to write */
    sid3 = H5Scopy(sid2);
    CHECK(sid3, FAIL, "H5Scopy");

    /* Create a dataset */
    data1 = H5Dcreate2(fid1, SPACE1_NAME, H5T_STD_U16LE, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(data1, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(data1, H5T_STD_U16LE, sid2, sid1, H5P_DEFAULT, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create another dataset */
    data2 = H5Dcreate2(fid1, SPACE2_NAME, H5T_STD_U16LE, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(data2, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(data2, H5T_STD_U16LE, sid3, sid1, H5P_DEFAULT, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid3);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 3x4 count with a stride of 4x4 & 2x3 block hyperslab for memory dataset */
    start[0] = 0; start[1] = 0;
    stride[0] = 4; stride[1] = 4;
    count[0] = 3; count[1] = 4;
    block[0] = 2; block[1] = 3;
    ret = H5Sselect_hyperslab(sid2, H5S_SELECT_SET, start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Make a copy of the dataspace to read */
    sid3 = H5Scopy(sid2);
    CHECK(sid3, FAIL, "H5Scopy");

    /* Read selection from disk */
    ret=H5Dread(data1,H5T_STD_U16LE,sid2,sid1,H5P_DEFAULT,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Read selection from disk */
    ret=H5Dread(data2,H5T_STD_U16LE,sid3,sid1,H5P_DEFAULT,rbuf2);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read with data written out */
    if(HDmemcmp(rbuf,rbuf2,sizeof(uint16_t)*SPACE3_DIM1*SPACE3_DIM2)) {
        TestErrPrintf("hyperslab values don't match! Line=%d\n",__LINE__);
#ifdef QAK
        for(i=0; i<SPACE3_DIM1; i++)
            for(j=0; j<SPACE3_DIM2; j++)
                if((unsigned)*(rbuf+i*SPACE3_DIM2+j)!=(unsigned)*(rbuf2+i*SPACE3_DIM2+j))
                    printf("i=%d, j=%d, *rbuf=%u, *rbuf2=%u\n",i,j,(unsigned)*(rbuf+i*SPACE3_DIM2+j),(unsigned)*(rbuf2+i*SPACE3_DIM2+j));
#endif /* QAK */
    } /* end if */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close 2nd memory dataspace */
    ret = H5Sclose(sid3);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(data1);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close Dataset */
    ret = H5Dclose(data2);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
    HDfree(rbuf2);
}   /* test_select_hyper_copy() */

/****************************************************************
**
**  test_select_point_copy(): Test H5S (dataspace) selection code.
**      Tests copying point selections
**
****************************************************************/
static void
test_select_point_copy(void)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		data1,data2;	/* Dataset IDs			*/
    hid_t		sid1,sid2,sid3; /* Dataspace IDs		*/
    hsize_t		dims1[] = {SPACE1_DIM1, SPACE1_DIM2, SPACE1_DIM3};
    hsize_t		dims2[] = {SPACE2_DIM1, SPACE2_DIM2};
    hsize_t		dims3[] = {SPACE3_DIM1, SPACE3_DIM2};
    hsize_t	coord1[POINT1_NPOINTS][SPACE1_RANK]; /* Coordinates for point selection */
    hsize_t	coord2[POINT1_NPOINTS][SPACE2_RANK]; /* Coordinates for point selection */
    hsize_t	coord3[POINT1_NPOINTS][SPACE3_RANK]; /* Coordinates for point selection */
    uint16_t   *wbuf,       /* buffer to write to disk */
               *rbuf,       /* 1st buffer read from disk */
               *rbuf2,      /* 2nd buffer read from disk */
               *tbuf;       /* temporary buffer pointer */
    int        i,j;        /* Counters */
    herr_t		ret;		/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Hyperslabs with Strides Functionality\n"));

    /* Allocate write & read buffers */
    wbuf = (uint16_t *)HDmalloc(sizeof(uint16_t) * SPACE2_DIM1 * SPACE2_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint16_t *)HDcalloc(sizeof(uint16_t), (size_t)(SPACE3_DIM1 * SPACE3_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");
    rbuf2 = (uint16_t *)HDcalloc(sizeof(uint16_t), (size_t)(SPACE3_DIM1 * SPACE3_DIM2));
    CHECK(rbuf2, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++)
            *tbuf++=(uint16_t)((i*SPACE2_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select sequence of ten points for disk dataset */
    coord1[0][0]=0; coord1[0][1]=10; coord1[0][2]= 5;
    coord1[1][0]=1; coord1[1][1]= 2; coord1[1][2]= 7;
    coord1[2][0]=2; coord1[2][1]= 4; coord1[2][2]= 9;
    coord1[3][0]=0; coord1[3][1]= 6; coord1[3][2]=11;
    coord1[4][0]=1; coord1[4][1]= 8; coord1[4][2]=13;
    coord1[5][0]=2; coord1[5][1]=12; coord1[5][2]= 0;
    coord1[6][0]=0; coord1[6][1]=14; coord1[6][2]= 2;
    coord1[7][0]=1; coord1[7][1]= 0; coord1[7][2]= 4;
    coord1[8][0]=2; coord1[8][1]= 1; coord1[8][2]= 6;
    coord1[9][0]=0; coord1[9][1]= 3; coord1[9][2]= 8;
    ret = H5Sselect_elements(sid1, H5S_SELECT_SET, (size_t)POINT1_NPOINTS, (const hsize_t *)coord1);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Select sequence of ten points for write dataset */
    coord2[0][0]=12; coord2[0][1]= 3;
    coord2[1][0]=15; coord2[1][1]=13;
    coord2[2][0]= 7; coord2[2][1]=25;
    coord2[3][0]= 0; coord2[3][1]= 6;
    coord2[4][0]=13; coord2[4][1]= 0;
    coord2[5][0]=24; coord2[5][1]=11;
    coord2[6][0]=12; coord2[6][1]=21;
    coord2[7][0]=29; coord2[7][1]= 4;
    coord2[8][0]= 8; coord2[8][1]= 8;
    coord2[9][0]=19; coord2[9][1]=17;
    ret = H5Sselect_elements(sid2, H5S_SELECT_SET, (size_t)POINT1_NPOINTS, (const hsize_t *)coord2);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Make a copy of the dataspace to write */
    sid3 = H5Scopy(sid2);
    CHECK(sid3, FAIL, "H5Scopy");

    /* Create a dataset */
    data1 = H5Dcreate2(fid1, SPACE1_NAME, H5T_STD_U16LE, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(data1, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(data1, H5T_STD_U16LE, sid2, sid1, H5P_DEFAULT, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create another dataset */
    data2 = H5Dcreate2(fid1, SPACE2_NAME, H5T_STD_U16LE, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(data2, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(data2, H5T_STD_U16LE, sid3, sid1, H5P_DEFAULT, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid3);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select sequence of points for read dataset */
    coord3[0][0]= 0; coord3[0][1]= 2;
    coord3[1][0]= 4; coord3[1][1]= 8;
    coord3[2][0]=13; coord3[2][1]=13;
    coord3[3][0]=14; coord3[3][1]=25;
    coord3[4][0]= 7; coord3[4][1]= 9;
    coord3[5][0]= 2; coord3[5][1]= 0;
    coord3[6][0]= 9; coord3[6][1]=19;
    coord3[7][0]= 1; coord3[7][1]=22;
    coord3[8][0]=12; coord3[8][1]=21;
    coord3[9][0]=11; coord3[9][1]= 6;
    ret = H5Sselect_elements(sid2, H5S_SELECT_SET, (size_t)POINT1_NPOINTS, (const hsize_t *)coord3);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Make a copy of the dataspace to read */
    sid3 = H5Scopy(sid2);
    CHECK(sid3, FAIL, "H5Scopy");

    /* Read selection from disk */
    ret=H5Dread(data1,H5T_STD_U16LE,sid2,sid1,H5P_DEFAULT,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Read selection from disk */
    ret=H5Dread(data2,H5T_STD_U16LE,sid3,sid1,H5P_DEFAULT,rbuf2);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read with data written out */
    if(HDmemcmp(rbuf,rbuf2,sizeof(uint16_t)*SPACE3_DIM1*SPACE3_DIM2))
        TestErrPrintf("point values don't match!\n");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close 2nd memory dataspace */
    ret = H5Sclose(sid3);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(data1);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close Dataset */
    ret = H5Dclose(data2);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
    HDfree(rbuf2);
}   /* test_select_point_copy() */

/****************************************************************
**
**  test_select_hyper_offset(): Test basic H5S (dataspace) selection code.
**      Tests hyperslabs of various sizes and dimensionalities with selection
**      offsets.
**
****************************************************************/
static void
test_select_hyper_offset(void)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hsize_t		dims1[] = {SPACE1_DIM1, SPACE1_DIM2, SPACE1_DIM3};
    hsize_t		dims2[] = {SPACE2_DIM1, SPACE2_DIM2};
    hsize_t		dims3[] = {SPACE3_DIM1, SPACE3_DIM2};
    hsize_t		start[SPACE1_RANK];     /* Starting location of hyperslab */
    hsize_t		stride[SPACE1_RANK];    /* Stride of hyperslab */
    hsize_t		count[SPACE1_RANK];     /* Element count of hyperslab */
    hsize_t		block[SPACE1_RANK];     /* Block size of hyperslab */
    hssize_t	offset[SPACE1_RANK];    /* Offset of selection */
    uint8_t    *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf,       /* temporary buffer pointer */
               *tbuf2;      /* temporary buffer pointer */
    int        i,j;        /* Counters */
    herr_t		ret;		/* Generic return value		*/
    htri_t	    valid;		/* Generic boolean return value		*/
    H5S_class_t ext_type;   /* Extent type */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Hyperslab Selection Functions with Offsets\n"));

    /* Allocate write & read buffers */
    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE2_DIM1 * SPACE2_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), (size_t)(SPACE3_DIM1 * SPACE3_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++)
            *tbuf++=(uint8_t)((i*SPACE2_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Verify extent type */
    ext_type = H5Sget_simple_extent_type(sid1);
    VERIFY(ext_type, H5S_SIMPLE, "H5Sget_simple_extent_type");

    /* Select 2x15x13 hyperslab for disk dataset */
    start[0]=1; start[1]=0; start[2]=0;
    stride[0]=1; stride[1]=1; stride[2]=1;
    count[0]=2; count[1]=15; count[2]=13;
    block[0]=1; block[1]=1; block[2]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Check a valid offset */
    offset[0]=-1; offset[1]=0; offset[2]=0;
    ret = H5Soffset_simple(sid1,offset);
    CHECK(ret, FAIL, "H5Soffset_simple");
    valid = H5Sselect_valid(sid1);
    VERIFY(valid, TRUE, "H5Sselect_valid");

    /* Check an invalid offset */
    offset[0]=10; offset[1]=0; offset[2]=0;
    ret = H5Soffset_simple(sid1,offset);
    CHECK(ret, FAIL, "H5Soffset_simple");
    valid = H5Sselect_valid(sid1);
    VERIFY(valid, FALSE, "H5Sselect_valid");

    /* Reset offset */
    offset[0]=0; offset[1]=0; offset[2]=0;
    ret = H5Soffset_simple(sid1,offset);
    CHECK(ret, FAIL, "H5Soffset_simple");
    valid = H5Sselect_valid(sid1);
    VERIFY(valid, TRUE, "H5Sselect_valid");

    /* Select 15x26 hyperslab for memory dataset */
    start[0]=15; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=15; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Choose a valid offset for the memory dataspace */
    offset[0]=-10; offset[1]=0;
    ret = H5Soffset_simple(sid2,offset);
    CHECK(ret, FAIL, "H5Soffset_simple");
    valid = H5Sselect_valid(sid2);
    VERIFY(valid, TRUE, "H5Sselect_valid");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE1_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(dataset, H5T_NATIVE_UCHAR, sid2, sid1, H5P_DEFAULT, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 15x26 hyperslab for reading memory dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=15; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Read selection from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read with data written out */
    for(i=0; i<SPACE3_DIM1; i++) {
        tbuf=wbuf+((i+5)*SPACE2_DIM2);
        tbuf2=rbuf+(i*SPACE3_DIM2);
        for(j=0; j<SPACE3_DIM2; j++, tbuf++, tbuf2++) {
            if(*tbuf!=*tbuf2)
                TestErrPrintf("%d: hyperslab values don't match!, i=%d, j=%d, *tbuf=%u, *tbuf2=%u\n",__LINE__,i,j,(unsigned)*tbuf,(unsigned)*tbuf2);
        } /* end for */
    } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_hyper_offset() */

/****************************************************************
**
**  test_select_hyper_offset2(): Test basic H5S (dataspace) selection code.
**      Tests optimized hyperslab I/O with selection offsets.
**
****************************************************************/
static void
test_select_hyper_offset2(void)
{
    hid_t	fid1;		/* HDF5 File IDs		*/
    hid_t	dataset;	/* Dataset ID			*/
    hid_t	sid1,sid2;	/* Dataspace ID			*/
    hsize_t	dims1[] = {SPACE7_DIM1, SPACE7_DIM2};
    hsize_t	dims2[] = {SPACE7_DIM1, SPACE7_DIM2};
    hsize_t	start[SPACE7_RANK];     /* Starting location of hyperslab */
    hsize_t	count[SPACE7_RANK];     /* Element count of hyperslab */
    hssize_t	offset[SPACE7_RANK];    /* Offset of selection */
    uint8_t    *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf,       /* temporary buffer pointer */
               *tbuf2;      /* temporary buffer pointer */
    int         i,j;        /* Counters */
    herr_t	ret;        /* Generic return value */
    htri_t	valid;      /* Generic boolean return value */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing More Hyperslab Selection Functions with Offsets\n"));

    /* Allocate write & read buffers */
    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE7_DIM1 * SPACE7_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), (size_t)(SPACE7_DIM1 * SPACE7_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE7_DIM1; i++)
        for(j=0; j<SPACE7_DIM2; j++)
            *tbuf++=(uint8_t)((i*SPACE7_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE7_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE7_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 4x10 hyperslab for disk dataset */
    start[0]=1; start[1]=0;
    count[0]=4; count[1]=10;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,NULL,count,NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Set offset */
    offset[0]=1; offset[1]=0;
    ret = H5Soffset_simple(sid1,offset);
    CHECK(ret, FAIL, "H5Soffset_simple");
    valid = H5Sselect_valid(sid1);
    VERIFY(valid, TRUE, "H5Sselect_valid");

    /* Select 4x10 hyperslab for memory dataset */
    start[0]=1; start[1]=0;
    count[0]=4; count[1]=10;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,NULL,count,NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Choose a valid offset for the memory dataspace */
    offset[0]=2; offset[1]=0;
    ret = H5Soffset_simple(sid2, offset);
    CHECK(ret, FAIL, "H5Soffset_simple");
    valid = H5Sselect_valid(sid2);
    VERIFY(valid, TRUE, "H5Sselect_valid");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE7_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(dataset, H5T_NATIVE_UCHAR, sid2, sid1, H5P_DEFAULT, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read selection from disk */
    ret = H5Dread(dataset, H5T_NATIVE_UCHAR, sid2, sid1, H5P_DEFAULT, rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read with data written out */
    for(i=0; i<4; i++) {
        tbuf=wbuf+((i+3)*SPACE7_DIM2);
        tbuf2=rbuf+((i+3)*SPACE7_DIM2);
        for(j=0; j<SPACE7_DIM2; j++, tbuf++, tbuf2++) {
            if(*tbuf!=*tbuf2)
                TestErrPrintf("%d: hyperslab values don't match!, i=%d, j=%d, *tbuf=%u, *tbuf2=%u\n",__LINE__,i,j,(unsigned)*tbuf,(unsigned)*tbuf2);
        } /* end for */
    } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_hyper_offset2() */

/****************************************************************
**
**  test_select_point_offset(): Test basic H5S (dataspace) selection code.
**      Tests element selections between dataspaces of various sizes
**      and dimensionalities with selection offsets.
**
****************************************************************/
static void
test_select_point_offset(void)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hsize_t		dims1[] = {SPACE1_DIM1, SPACE1_DIM2, SPACE1_DIM3};
    hsize_t		dims2[] = {SPACE2_DIM1, SPACE2_DIM2};
    hsize_t		dims3[] = {SPACE3_DIM1, SPACE3_DIM2};
    hsize_t	coord1[POINT1_NPOINTS][SPACE1_RANK]; /* Coordinates for point selection */
    hsize_t	coord2[POINT1_NPOINTS][SPACE2_RANK]; /* Coordinates for point selection */
    hsize_t	coord3[POINT1_NPOINTS][SPACE3_RANK]; /* Coordinates for point selection */
    hssize_t	offset[SPACE1_RANK];    /* Offset of selection */
    uint8_t    *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf,       /* temporary buffer pointer */
               *tbuf2;      /* temporary buffer pointer */
    int        i,j;        /* Counters */
    herr_t		ret;		/* Generic return value		*/
    htri_t	    valid;		/* Generic boolean return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Element Selection Functions\n"));

    /* Allocate write & read buffers */
    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE2_DIM1 * SPACE2_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), (size_t)(SPACE3_DIM1 * SPACE3_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++)
            *tbuf++=(uint8_t)((i*SPACE2_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for write buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select sequence of ten points for disk dataset */
    coord1[0][0]=0; coord1[0][1]=10; coord1[0][2]= 5;
    coord1[1][0]=1; coord1[1][1]= 2; coord1[1][2]= 7;
    coord1[2][0]=2; coord1[2][1]= 4; coord1[2][2]= 9;
    coord1[3][0]=0; coord1[3][1]= 6; coord1[3][2]=11;
    coord1[4][0]=1; coord1[4][1]= 8; coord1[4][2]=12;
    coord1[5][0]=2; coord1[5][1]=12; coord1[5][2]= 0;
    coord1[6][0]=0; coord1[6][1]=14; coord1[6][2]= 2;
    coord1[7][0]=1; coord1[7][1]= 0; coord1[7][2]= 4;
    coord1[8][0]=2; coord1[8][1]= 1; coord1[8][2]= 6;
    coord1[9][0]=0; coord1[9][1]= 3; coord1[9][2]= 8;
    ret = H5Sselect_elements(sid1, H5S_SELECT_SET, (size_t)POINT1_NPOINTS, (const hsize_t *)coord1);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Check a valid offset */
    offset[0]=0; offset[1]=0; offset[2]=1;
    ret = H5Soffset_simple(sid1,offset);
    CHECK(ret, FAIL, "H5Soffset_simple");
    valid = H5Sselect_valid(sid1);
    VERIFY(valid, TRUE, "H5Sselect_valid");

    /* Check an invalid offset */
    offset[0]=10; offset[1]=0; offset[2]=0;
    ret = H5Soffset_simple(sid1,offset);
    CHECK(ret, FAIL, "H5Soffset_simple");
    valid = H5Sselect_valid(sid1);
    VERIFY(valid, FALSE, "H5Sselect_valid");

    /* Reset offset */
    offset[0]=0; offset[1]=0; offset[2]=0;
    ret = H5Soffset_simple(sid1,offset);
    CHECK(ret, FAIL, "H5Soffset_simple");
    valid = H5Sselect_valid(sid1);
    VERIFY(valid, TRUE, "H5Sselect_valid");

    /* Select sequence of ten points for write dataset */
    coord2[0][0]=12; coord2[0][1]= 3;
    coord2[1][0]=15; coord2[1][1]=13;
    coord2[2][0]= 7; coord2[2][1]=24;
    coord2[3][0]= 0; coord2[3][1]= 6;
    coord2[4][0]=13; coord2[4][1]= 0;
    coord2[5][0]=24; coord2[5][1]=11;
    coord2[6][0]=12; coord2[6][1]=21;
    coord2[7][0]=23; coord2[7][1]= 4;
    coord2[8][0]= 8; coord2[8][1]= 8;
    coord2[9][0]=19; coord2[9][1]=17;
    ret = H5Sselect_elements(sid2, H5S_SELECT_SET, (size_t)POINT1_NPOINTS, (const hsize_t *)coord2);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Choose a valid offset for the memory dataspace */
    offset[0]=5; offset[1]=1;
    ret = H5Soffset_simple(sid2, offset);
    CHECK(ret, FAIL, "H5Soffset_simple");
    valid = H5Sselect_valid(sid2);
    VERIFY(valid, TRUE, "H5Sselect_valid");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE1_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(dataset, H5T_NATIVE_UCHAR, sid2, sid1, H5P_DEFAULT, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select sequence of points for read dataset */
    coord3[0][0]= 0; coord3[0][1]= 2;
    coord3[1][0]= 4; coord3[1][1]= 8;
    coord3[2][0]=13; coord3[2][1]=13;
    coord3[3][0]=14; coord3[3][1]=25;
    coord3[4][0]= 7; coord3[4][1]= 9;
    coord3[5][0]= 2; coord3[5][1]= 0;
    coord3[6][0]= 9; coord3[6][1]=19;
    coord3[7][0]= 1; coord3[7][1]=22;
    coord3[8][0]=12; coord3[8][1]=21;
    coord3[9][0]=11; coord3[9][1]= 6;
    ret = H5Sselect_elements(sid2, H5S_SELECT_SET, (size_t)POINT1_NPOINTS, (const hsize_t *)coord3);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Read selection from disk */
    ret = H5Dread(dataset, H5T_NATIVE_UCHAR, sid2, sid1, H5P_DEFAULT, rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read with data written out */
    for(i = 0; i < POINT1_NPOINTS; i++) {
        tbuf = wbuf + ((coord2[i][0] + (hsize_t)offset[0]) * SPACE2_DIM2) + coord2[i][1] + (hsize_t)offset[1];
        tbuf2 = rbuf + (coord3[i][0] * SPACE3_DIM2) + coord3[i][1];
        if(*tbuf != *tbuf2)
            TestErrPrintf("element values don't match!, i=%d\n", i);
    } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_point_offset() */

/****************************************************************
**
**  test_select_hyper_union(): Test basic H5S (dataspace) selection code.
**      Tests unions of hyperslabs of various sizes and dimensionalities.
**
****************************************************************/
static void
test_select_hyper_union(void)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hid_t		xfer;	    /* Dataset Transfer Property List ID */
    hsize_t		dims1[] = {SPACE1_DIM1, SPACE1_DIM2, SPACE1_DIM3};
    hsize_t		dims2[] = {SPACE2_DIM1, SPACE2_DIM2};
    hsize_t		dims3[] = {SPACE3_DIM1, SPACE3_DIM2};
    hsize_t		start[SPACE1_RANK];     /* Starting location of hyperslab */
    hsize_t		stride[SPACE1_RANK];    /* Stride of hyperslab */
    hsize_t		count[SPACE1_RANK];     /* Element count of hyperslab */
    hsize_t		block[SPACE1_RANK];     /* Block size of hyperslab */
    size_t      begin[SPACE2_DIM1]=     /* Offset within irregular block */
        {0,0,0,0,0,0,0,0,0,0,           /* First ten rows start at offset 0 */
        5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5,5}; /* Next eighteen rows start at offset 5 */
    size_t      len[SPACE2_DIM1]=       /* Len of each row within irregular block */
        {10,10,10,10,10,10,10,10,       /* First eight rows are 10 long */
         20,20,                         /* Next two rows are 20 long */
        15,15,15,15,15,15,15,15,15,15,15,15,15,15,15,15}; /* Next eighteen rows are 15 long */
    uint8_t    *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf,       /* temporary buffer pointer */
               *tbuf2;      /* temporary buffer pointer */
    int        i,j;        /* Counters */
    herr_t		ret;		/* Generic return value		*/
    hssize_t	    npoints;	/* Number of elements in selection */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Hyperslab Selection Functions with unions of hyperslabs\n"));

    /* Allocate write & read buffers */
    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE2_DIM1 * SPACE2_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), (size_t)(SPACE3_DIM1 * SPACE3_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++)
            *tbuf++=(uint8_t)((i*SPACE2_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

/* Test simple case of one block overlapping another */
    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 2x15x13 hyperslab for disk dataset */
    start[0]=1; start[1]=0; start[2]=0;
    stride[0]=1; stride[1]=1; stride[2]=1;
    count[0]=2; count[1]=15; count[2]=13;
    block[0]=1; block[1]=1; block[2]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    npoints = H5Sget_select_npoints(sid1);
    VERIFY(npoints, 2 * 15 * 13, "H5Sget_select_npoints");

    /* Select 8x26 hyperslab for memory dataset */
    start[0]=15; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=8; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Union overlapping 8x26 hyperslab for memory dataset (to form a 15x26 selection) */
    start[0]=22; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=8; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_OR,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    npoints = H5Sget_select_npoints(sid2);
    VERIFY(npoints, 15 * 26, "H5Sget_select_npoints");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE1_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(dataset, H5T_NATIVE_UCHAR, sid2, sid1, H5P_DEFAULT, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 15x26 hyperslab for reading memory dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=15; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Read selection from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read with data written out */
    for(i=0; i<SPACE3_DIM1; i++) {
        tbuf=wbuf+((i+15)*SPACE2_DIM2);
        tbuf2=rbuf+(i*SPACE3_DIM2);
        for(j=0; j<SPACE3_DIM2; j++, tbuf++, tbuf2++) {
            if(*tbuf!=*tbuf2)
                TestErrPrintf("%d: hyperslab values don't match!, i=%d, j=%d, *tbuf=%d, *tbuf2=%d\n",__LINE__,i,j,(int)*tbuf,(int)*tbuf2);
        } /* end for */
    } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

/* Test simple case of several block overlapping another */
    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 2x15x13 hyperslab for disk dataset */
    start[0]=1; start[1]=0; start[2]=0;
    stride[0]=1; stride[1]=1; stride[2]=1;
    count[0]=2; count[1]=15; count[2]=13;
    block[0]=1; block[1]=1; block[2]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select 8x15 hyperslab for memory dataset */
    start[0]=15; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=8; count[1]=15;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Union overlapping 8x15 hyperslab for memory dataset (to form a 15x15 selection) */
    start[0]=22; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=8; count[1]=15;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_OR,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Union overlapping 15x15 hyperslab for memory dataset (to form a 15x26 selection) */
    start[0]=15; start[1]=11;
    stride[0]=1; stride[1]=1;
    count[0]=15; count[1]=15;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_OR,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    npoints = H5Sget_select_npoints(sid2);
    VERIFY(npoints, 15 * 26, "H5Sget_select_npoints");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE2_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(dataset, H5T_NATIVE_UCHAR, sid2, sid1, H5P_DEFAULT, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 15x26 hyperslab for reading memory dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=15; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Read selection from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read with data written out */
    for(i=0; i<SPACE3_DIM1; i++) {
        tbuf=wbuf+((i+15)*SPACE2_DIM2);
        tbuf2=rbuf+(i*SPACE3_DIM2);
        for(j=0; j<SPACE3_DIM2; j++, tbuf++, tbuf2++) {
            if(*tbuf!=*tbuf2)
                TestErrPrintf("%d: hyperslab values don't match!, i=%d, j=%d, *tbuf=%d, *tbuf2=%d\n",__LINE__,i,j,(int)*tbuf,(int)*tbuf2);
        } /* end for */
    } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

/* Test disjoint case of two non-overlapping blocks */
    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 2x15x13 hyperslab for disk dataset */
    start[0]=1; start[1]=0; start[2]=0;
    stride[0]=1; stride[1]=1; stride[2]=1;
    count[0]=2; count[1]=15; count[2]=13;
    block[0]=1; block[1]=1; block[2]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select 7x26 hyperslab for memory dataset */
    start[0]=1; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=7; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Union non-overlapping 8x26 hyperslab for memory dataset (to form a 15x26 disjoint selection) */
    start[0]=22; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=8; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_OR,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    npoints = H5Sget_select_npoints(sid2);
    VERIFY(npoints, 15 * 26, "H5Sget_select_npoints");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE3_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret = H5Dwrite(dataset, H5T_NATIVE_UCHAR, sid2, sid1, H5P_DEFAULT, wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 15x26 hyperslab for reading memory dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=15; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Read selection from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read with data written out */
    for(i=0; i<SPACE3_DIM1; i++) {
        /* Jump over gap in middle */
        if(i<7)
            tbuf=wbuf+((i+1)*SPACE2_DIM2);
        else
            tbuf=wbuf+((i+15)*SPACE2_DIM2);
        tbuf2=rbuf+(i*SPACE3_DIM2);
        for(j=0; j<SPACE3_DIM2; j++, tbuf++, tbuf2++) {
            if(*tbuf!=*tbuf2)
                TestErrPrintf("%d: hyperslab values don't match!, i=%d, j=%d, *tbuf=%d, *tbuf2=%d\n",__LINE__,i,j,(int)*tbuf,(int)*tbuf2);
        } /* end for */
    } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

/* Test disjoint case of two non-overlapping blocks with hyperslab caching turned off */
    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 2x15x13 hyperslab for disk dataset */
    start[0]=1; start[1]=0; start[2]=0;
    stride[0]=1; stride[1]=1; stride[2]=1;
    count[0]=2; count[1]=15; count[2]=13;
    block[0]=1; block[1]=1; block[2]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select 7x26 hyperslab for memory dataset */
    start[0]=1; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=7; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Union non-overlapping 8x26 hyperslab for memory dataset (to form a 15x26 disjoint selection) */
    start[0]=22; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=8; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_OR,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    npoints = H5Sget_select_npoints(sid2);
    VERIFY(npoints, 15 * 26, "H5Sget_select_npoints");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE4_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    xfer = H5Pcreate (H5P_DATASET_XFER);
    CHECK(xfer, FAIL, "H5Pcreate");

    /* Write selection to disk */
    ret=H5Dwrite(dataset,H5T_NATIVE_UCHAR,sid2,sid1,xfer,wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 15x26 hyperslab for reading memory dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=15; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Read selection from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,xfer,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Close transfer property list */
    ret = H5Pclose(xfer);
    CHECK(ret, FAIL, "H5Pclose");

    /* Compare data read with data written out */
    for(i=0; i<SPACE3_DIM1; i++) {
        /* Jump over gap in middle */
        if(i<7)
            tbuf=wbuf+((i+1)*SPACE2_DIM2);
        else
            tbuf=wbuf+((i+15)*SPACE2_DIM2);
        tbuf2=rbuf+(i*SPACE3_DIM2);
        for(j=0; j<SPACE3_DIM2; j++, tbuf++, tbuf2++) {
            if(*tbuf!=*tbuf2)
                TestErrPrintf("%d: hyperslab values don't match!, i=%d, j=%d, *tbuf=%d, *tbuf2=%d\n",__LINE__,i,j,(int)*tbuf,(int)*tbuf2);
        } /* end for */
    } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

/* Test case of two blocks which overlap corners and must be split */
    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 2x15x13 hyperslab for disk dataset */
    start[0]=1; start[1]=0; start[2]=0;
    stride[0]=1; stride[1]=1; stride[2]=1;
    count[0]=2; count[1]=15; count[2]=13;
    block[0]=1; block[1]=1; block[2]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select 10x10 hyperslab for memory dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=10; count[1]=10;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Union overlapping 15x20 hyperslab for memory dataset (forming a irregularly shaped region) */
    start[0]=8; start[1]=5;
    stride[0]=1; stride[1]=1;
    count[0]=20; count[1]=15;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_OR,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    npoints = H5Sget_select_npoints(sid2);
    VERIFY(npoints, 15 * 26, "H5Sget_select_npoints");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1,SPACE5_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret=H5Dwrite(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 15x26 hyperslab for reading memory dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=15; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Read selection from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read with data written out */
    for(i=0,tbuf2=rbuf; i<SPACE2_DIM1; i++) {
        tbuf=wbuf+(i*SPACE2_DIM2)+begin[i];
        for(j=0; j<(int)len[i]; j++, tbuf++, tbuf2++) {
            if(*tbuf!=*tbuf2)
                TestErrPrintf("%d: hyperslab values don't match!, i=%d, j=%d, *tbuf=%d, *tbuf2=%d\n",__LINE__,i,j,(int)*tbuf,(int)*tbuf2);
        } /* end for */
    } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_hyper_union() */

#ifdef NEW_HYPERSLAB_API
/****************************************************************
**
**  test_select_hyper_union_stagger(): Test basic H5S (dataspace) selection code.
**      Tests unions of staggered hyperslabs.  (Uses H5Scombine_hyperslab
**      and H5Sselect_select instead of H5Sselect_hyperslab)
**
****************************************************************/
static void
test_select_hyper_union_stagger(void)
{
    hid_t file_id;      /* File ID */
    hid_t dset_id;      /* Dataset ID */
    hid_t dataspace;    /* File dataspace ID */
    hid_t memspace;     /* Memory dataspace ID */
    hid_t tmp_space;    /* Temporary dataspace ID */
    hid_t tmp2_space;   /* Another emporary dataspace ID */
    hsize_t dimsm[2]={7,7}; /* Memory array dimensions */
    hsize_t dimsf[2]={6,5}; /* File array dimensions */
    hsize_t count[2]={3,1}; /* 1st Hyperslab size */
    hsize_t count2[2]={3,1}; /* 2nd Hyperslab size */
    hsize_t count3[2]={2,1}; /* 3rd Hyperslab size */
    hssize_t offset[2]={0,0}; /* 1st Hyperslab offset */
    hssize_t offset2[2]={2,1}; /* 2nd Hyperslab offset */
    hssize_t offset3[2]={4,2}; /* 3rd Hyperslab offset */
    hsize_t count_out[2]={4,2}; /* Hyperslab size in memory */
    hssize_t offset_out[2]={0,3}; /* Hyperslab offset in memory */
    int data[6][5];     /* Data to write */
    int data_out[7][7]; /* Data read in */
    int input_loc[8][2]={{0,0},
                         {1,0},
                         {2,0},
                         {2,1},
                         {3,1},
                         {4,1},
                         {4,2},
                         {5,2}};
    int output_loc[8][2]={{0,3},
                         {0,4},
                         {1,3},
                         {1,4},
                         {2,3},
                         {2,4},
                         {3,3},
                         {3,4}};
    int dsetrank=2;     /* File Dataset rank */
    int memrank=2;      /* Memory Dataset rank */
    int i,j;            /* Local counting variables */
    herr_t error;
    hsize_t stride[2]={1,1};
    hsize_t block[2]={1,1};

    /* Initialize data to write */
    for(i=0; i<6; i++)
        for(j=0; j<5; j++)
           data[i][j] = j*10 + i;

    /* Create file */
    file_id=H5Fcreate(FILENAME,H5F_ACC_TRUNC,H5P_DEFAULT,H5P_DEFAULT);
    CHECK(file_id, FAIL, "H5Fcreate");

    /* Create File Dataspace */
    dataspace=H5Screate_simple(dsetrank,dimsf,NULL);
    CHECK(dataspace, FAIL, "H5Screate_simple");

    /* Create File Dataset */
    dset_id=H5Dcreate2(file_id,"IntArray",H5T_NATIVE_INT,dataspace,H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dset_id, FAIL, "H5Dcreate2");

    /* Write File Dataset */
    error=H5Dwrite(dset_id,H5T_NATIVE_INT,dataspace,dataspace,H5P_DEFAULT,data);
    CHECK(error, FAIL, "H5Dwrite");

    /* Close things */
    error=H5Sclose(dataspace);
    CHECK(error, FAIL, "H5Sclose");
    error = H5Dclose(dset_id);
    CHECK(error, FAIL, "H5Dclose");
    error = H5Fclose(file_id);
    CHECK(error, FAIL, "H5Fclose");

    /* Initialize intput buffer */
    memset(data_out, 0, 7 * 7 * sizeof(int));

    /* Open file */
    file_id = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(file_id, FAIL, "H5Fopen");

    /* Open dataset */
    dset_id = H5Dopen2(file_id, "IntArray", H5P_DEFAULT);
    CHECK(dset_id, FAIL, "H5Dopen2");

    /* Get the dataspace */
    dataspace = H5Dget_space(dset_id);
    CHECK(dataspace, FAIL, "H5Dget_space");

    /* Select the hyperslabs */
    error = H5Sselect_hyperslab(dataspace, H5S_SELECT_SET, offset, stride, count, block);
    CHECK(error, FAIL, "H5Sselect_hyperslab");
    tmp_space = H5Scombine_hyperslab(dataspace, H5S_SELECT_OR, offset2, stride, count2, block);
    CHECK(tmp_space, FAIL, "H5Scombine_hyperslab");

    /* Copy the file dataspace and select hyperslab */
    tmp2_space = H5Scopy(dataspace);
    CHECK(tmp2_space, FAIL, "H5Scopy");
    error=H5Sselect_hyperslab(tmp2_space,H5S_SELECT_SET,offset3,stride,count3,block);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    /* Combine the copied dataspace with the temporary dataspace */
    error=H5Sselect_select(tmp_space,H5S_SELECT_OR,tmp2_space);
    CHECK(error, FAIL, "H5Sselect_select");

    /* Create Memory Dataspace */
    memspace=H5Screate_simple(memrank,dimsm,NULL);
    CHECK(memspace, FAIL, "H5Screate_simple");

    /* Select hyperslab in memory */
    error=H5Sselect_hyperslab(memspace,H5S_SELECT_SET,offset_out,stride,count_out,block);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    /* Read File Dataset */
    error=H5Dread(dset_id,H5T_NATIVE_INT,memspace,tmp_space,H5P_DEFAULT,data_out);
    CHECK(error, FAIL, "H5Dread");

    /* Verify input data */
    for(i=0; i<8; i++) {
        if(data[input_loc[i][0]][input_loc[i][1]]!=data_out[output_loc[i][0]][output_loc[i][1]]) {
            printf("input data #%d is wrong!\n",i);
            printf("input_loc=[%d][%d]\n",input_loc[i][0],input_loc[i][1]);
            printf("output_loc=[%d][%d]\n",output_loc[i][0],output_loc[i][1]);
            printf("data=%d\n",data[input_loc[i][0]][input_loc[i][1]]);
            TestErrPrintf("data_out=%d\n",data_out[output_loc[i][0]][output_loc[i][1]]);
        } /* end if */
    } /* end for */

    /* Close things */
    error=H5Sclose(tmp2_space);
    CHECK(error, FAIL, "H5Sclose");
    error=H5Sclose(tmp_space);
    CHECK(error, FAIL, "H5Sclose");
    error=H5Sclose(dataspace);
    CHECK(error, FAIL, "H5Sclose");
    error=H5Sclose(memspace);
    CHECK(error, FAIL, "H5Sclose");
    error=H5Dclose(dset_id);
    CHECK(error, FAIL, "H5Dclose");
    error=H5Fclose(file_id);
    CHECK(error, FAIL, "H5Fclose");
}

/****************************************************************
**
**  test_select_hyper_union_3d(): Test basic H5S (dataspace) selection code.
**      Tests unions of hyperslabs in 3-D (Uses H5Scombine_hyperslab
**      and H5Scombine_select instead of H5Sselect_hyperslab)
**
****************************************************************/
static void
test_select_hyper_union_3d(void)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hid_t		tmp_space;	/* Temporary Dataspace ID	*/
    hid_t		tmp2_space;	/* Another temporary Dataspace ID	*/
    hsize_t		dims1[] = {SPACE1_DIM1, SPACE1_DIM2, SPACE1_DIM3};
    hsize_t		dims2[] = {SPACE4_DIM1, SPACE4_DIM2, SPACE4_DIM3};
    hsize_t		dims3[] = {SPACE3_DIM1, SPACE3_DIM2};
    hsize_t		start[SPACE1_RANK];     /* Starting location of hyperslab */
    hsize_t		stride[SPACE1_RANK];    /* Stride of hyperslab */
    hsize_t		count[SPACE1_RANK];     /* Element count of hyperslab */
    hsize_t		block[SPACE1_RANK];     /* Block size of hyperslab */
    struct row_list {
        size_t z;
        size_t y;
        size_t x;
        size_t l;
    } rows[]= {             /* Array of x,y,z coordinates & length for each row written from memory */
        {0,0,0,6},          /* 1st face of 3-D object */
        {0,1,0,6},
        {0,2,0,6},
        {0,3,0,6},
        {0,4,0,6},
        {1,0,0,6},          /* 2nd face of 3-D object */
        {1,1,0,6},
        {1,2,0,6},
        {1,3,0,6},
        {1,4,0,6},
        {2,0,0,6},          /* 3rd face of 3-D object */
        {2,1,0,10},
        {2,2,0,10},
        {2,3,0,10},
        {2,4,0,10},
        {2,5,2,8},
        {2,6,2,8},
        {3,0,0,6},          /* 4th face of 3-D object */
        {3,1,0,10},
        {3,2,0,10},
        {3,3,0,10},
        {3,4,0,10},
        {3,5,2,8},
        {3,6,2,8},
        {4,0,0,6},          /* 5th face of 3-D object */
        {4,1,0,10},
        {4,2,0,10},
        {4,3,0,10},
        {4,4,0,10},
        {4,5,2,8},
        {4,6,2,8},
        {5,1,2,8},          /* 6th face of 3-D object */
        {5,2,2,8},
        {5,3,2,8},
        {5,4,2,8},
        {5,5,2,8},
        {5,6,2,8},
        {6,1,2,8},          /* 7th face of 3-D object */
        {6,2,2,8},
        {6,3,2,8},
        {6,4,2,8},
        {6,5,2,8},
        {6,6,2,8},
        {7,1,2,8},          /* 8th face of 3-D object */
        {7,2,2,8},
        {7,3,2,8},
        {7,4,2,8},
        {7,5,2,8},
        {7,6,2,8}};
    uint8_t    *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf,       /* temporary buffer pointer */
               *tbuf2;      /* temporary buffer pointer */
    int        i,j,k;      /* Counters */
    herr_t		ret;		/* Generic return value		*/
    hsize_t	    npoints;	/* Number of elements in selection */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Hyperslab Selection Functions with unions of 3-D hyperslabs\n"));

    /* Allocate write & read buffers */
    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE4_DIM1 * SPACE4_DIM2 * SPACE4_DIM3);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), SPACE3_DIM1 * SPACE3_DIM2);
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE4_DIM1; i++)
        for(j=0; j<SPACE4_DIM2; j++)
            for(k=0; k<SPACE4_DIM3; k++)
                *tbuf++=(uint8_t)((((i*SPACE4_DIM2)+j)*SPACE4_DIM3)+k);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

/* Test case of two blocks which overlap corners and must be split */
    /* Create dataspace for dataset on disk */
    sid1 = H5Screate_simple(SPACE1_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE4_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 2x15x13 hyperslab for disk dataset */
    start[0]=1; start[1]=0; start[2]=0;
    stride[0]=1; stride[1]=1; stride[2]=1;
    count[0]=2; count[1]=15; count[2]=13;
    block[0]=1; block[1]=1; block[2]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Select 5x5x6 hyperslab for memory dataset */
    start[0]=0; start[1]=0; start[2]=0;
    stride[0]=1; stride[1]=1; stride[2]=1;
    count[0]=5; count[1]=5; count[2]=6;
    block[0]=1; block[1]=1; block[2]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Union overlapping 15x20 hyperslab for memory dataset (forming a irregularly shaped region) */
    start[0]=2; start[1]=1; start[2]=2;
    stride[0]=1; stride[1]=1; stride[2]=1;
    count[0]=6; count[1]=6; count[2]=8;
    block[0]=1; block[1]=1; block[2]=1;
    tmp_space = H5Scombine_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(tmp_space, FAIL, "H5Sselect_hyperslab");

    /* Combine dataspaces and create new dataspace */
    tmp2_space = H5Scombine_select(sid2,H5S_SELECT_OR,tmp_space);
    CHECK(tmp2_space, FAIL, "H5Scombin_select");

    npoints = H5Sget_select_npoints(tmp2_space);
    VERIFY(npoints, 15*26, "H5Sget_select_npoints");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE1_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret=H5Dwrite(dataset,H5T_NATIVE_UCHAR,tmp2_space,sid1,H5P_DEFAULT,wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close temporary dataspaces */
    ret = H5Sclose(tmp_space);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(tmp2_space);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE3_RANK, dims3, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 15x26 hyperslab for reading memory dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=15; count[1]=26;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Read selection from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Compare data read with data written out */
    for(i=0,tbuf2=rbuf; i<(int)(sizeof(rows)/sizeof(struct row_list)); i++) {
        tbuf=wbuf+(rows[i].z*SPACE4_DIM3*SPACE4_DIM2)+(rows[i].y*SPACE4_DIM3)+rows[i].x;
        for(j=0; j<(int)rows[i].l; j++, tbuf++, tbuf2++) {
            if(*tbuf!=*tbuf2)
                TestErrPrintf("%d: hyperslab values don't match!, i=%d, j=%d, *tbuf=%d, *tbuf2=%d\n",__LINE__,i,j,(int)*tbuf,(int)*tbuf2);
        } /* end for */
    } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_hyper_union_3d() */
#endif /* NEW_HYPERSLAB_API */

/****************************************************************
**
**  test_select_hyper_and_2d(): Test basic H5S (dataspace) selection code.
**      Tests 'and' of hyperslabs in 2-D
**
****************************************************************/
static void
test_select_hyper_and_2d(void)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hsize_t		dims1[] = {SPACE2_DIM1, SPACE2_DIM2};
    hsize_t		dims2[] = {SPACE2A_DIM1};
    hsize_t	        start[SPACE2_RANK];     /* Starting location of hyperslab */
    hsize_t		stride[SPACE2_RANK];    /* Stride of hyperslab */
    hsize_t		count[SPACE2_RANK];     /* Element count of hyperslab */
    hsize_t		block[SPACE2_RANK];     /* Block size of hyperslab */
    uint8_t    *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf,       /* temporary buffer pointer */
               *tbuf2;      /* temporary buffer pointer */
    int        i,j;        /* Counters */
    herr_t		ret;    /* Generic return value		*/
    hssize_t	    npoints;	/* Number of elements in selection */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Hyperslab Selection Functions with intersection of 2-D hyperslabs\n"));

    /* Allocate write & read buffers */
    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE2_DIM1 * SPACE2_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), (size_t)(SPACE2_DIM1 * SPACE2_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++)
            *tbuf++=(uint8_t)((i*SPACE2_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset on disk */
    sid1 = H5Screate_simple(SPACE2_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2A_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 10x10 hyperslab for disk dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=10; count[1]=10;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Intersect overlapping 10x10 hyperslab */
    start[0]=5; start[1]=5;
    stride[0]=1; stride[1]=1;
    count[0]=10; count[1]=10;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_AND,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    npoints = H5Sget_select_npoints(sid1);
    VERIFY(npoints, 5 * 5, "H5Sget_select_npoints");

    /* Select 25 hyperslab for memory dataset */
    start[0]=0;
    stride[0]=1;
    count[0]=25;
    block[0]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    npoints = H5Sget_select_npoints(sid2);
    VERIFY(npoints, 5 * 5, "H5Sget_select_npoints");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE2_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret=H5Dwrite(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read entire dataset from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,H5S_ALL,H5S_ALL,H5P_DEFAULT,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Initialize write buffer */
    for(i=0, tbuf=rbuf, tbuf2=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++, tbuf++) {
            if((i>=5 && i<=9) && (j>=5 && j<=9)) {
                if(*tbuf!=*tbuf2)
                    printf("%d: hyperslab values don't match!, i=%d, j=%d, *tbuf=%d, *tbuf2=%d\n",__LINE__,i,j,(int)*tbuf,(int)*tbuf2);
                tbuf2++;
            } /* end if */
            else {
                if(*tbuf!=0)
                    printf("%d: hyperslab element has wrong value!, i=%d, j=%d, *tbuf=%d\n",__LINE__,i,j,(int)*tbuf);
            } /* end else */
        } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_hyper_and_2d() */

/****************************************************************
**
**  test_select_hyper_xor_2d(): Test basic H5S (dataspace) selection code.
**      Tests 'xor' of hyperslabs in 2-D
**
****************************************************************/
static void
test_select_hyper_xor_2d(void)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hsize_t		dims1[] = {SPACE2_DIM1, SPACE2_DIM2};
    hsize_t		dims2[] = {SPACE2A_DIM1};
    hsize_t	        start[SPACE2_RANK];     /* Starting location of hyperslab */
    hsize_t		stride[SPACE2_RANK];    /* Stride of hyperslab */
    hsize_t		count[SPACE2_RANK];     /* Element count of hyperslab */
    hsize_t		block[SPACE2_RANK];     /* Block size of hyperslab */
    uint8_t    *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf,       /* temporary buffer pointer */
               *tbuf2;      /* temporary buffer pointer */
    int        i,j;        /* Counters */
    herr_t		ret;    /* Generic return value		*/
    hssize_t	    npoints;	/* Number of elements in selection */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Hyperslab Selection Functions with XOR of 2-D hyperslabs\n"));

    /* Allocate write & read buffers */
    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE2_DIM1 * SPACE2_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), (size_t)(SPACE2_DIM1 * SPACE2_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++)
            *tbuf++=(uint8_t)((i*SPACE2_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset on disk */
    sid1 = H5Screate_simple(SPACE2_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2A_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 10x10 hyperslab for disk dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=10; count[1]=10;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Intersect overlapping 10x10 hyperslab */
    start[0]=5; start[1]=5;
    stride[0]=1; stride[1]=1;
    count[0]=10; count[1]=10;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_XOR,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    npoints = H5Sget_select_npoints(sid1);
    VERIFY(npoints, 150, "H5Sget_select_npoints");

    /* Select 25 hyperslab for memory dataset */
    start[0]=0;
    stride[0]=1;
    count[0]=150;
    block[0]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    npoints = H5Sget_select_npoints(sid2);
    VERIFY(npoints, 150, "H5Sget_select_npoints");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE2_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret=H5Dwrite(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read entire dataset from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,H5S_ALL,H5S_ALL,H5P_DEFAULT,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Initialize write buffer */
    for(i=0, tbuf=rbuf, tbuf2=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++, tbuf++) {
            if(((i>=0 && i<=4) && (j>=0 && j<=9)) ||
                    ((i>=5 && i<=9) && ((j>=0 && j<=4) || (j>=10 && j<=14))) ||
                    ((i>=10 && i<=14) && (j>=5 && j<=14))) {
                if(*tbuf!=*tbuf2)
                    printf("%d: hyperslab values don't match!, i=%d, j=%d, *tbuf=%d, *tbuf2=%d\n",__LINE__,i,j,(int)*tbuf,(int)*tbuf2);
                tbuf2++;
            } /* end if */
            else {
                if(*tbuf!=0)
                    printf("%d: hyperslab element has wrong value!, i=%d, j=%d, *tbuf=%d\n",__LINE__,i,j,(int)*tbuf);
            } /* end else */
        } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_hyper_xor_2d() */

/****************************************************************
**
**  test_select_hyper_notb_2d(): Test basic H5S (dataspace) selection code.
**      Tests 'notb' of hyperslabs in 2-D
**
****************************************************************/
static void
test_select_hyper_notb_2d(void)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hsize_t		dims1[] = {SPACE2_DIM1, SPACE2_DIM2};
    hsize_t		dims2[] = {SPACE2A_DIM1};
    hsize_t	        start[SPACE2_RANK];     /* Starting location of hyperslab */
    hsize_t		stride[SPACE2_RANK];    /* Stride of hyperslab */
    hsize_t		count[SPACE2_RANK];     /* Element count of hyperslab */
    hsize_t		block[SPACE2_RANK];     /* Block size of hyperslab */
    uint8_t    *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf,       /* temporary buffer pointer */
               *tbuf2;      /* temporary buffer pointer */
    int        i,j;        /* Counters */
    herr_t		ret;    /* Generic return value		*/
    hssize_t	    npoints;	/* Number of elements in selection */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Hyperslab Selection Functions with NOTB of 2-D hyperslabs\n"));

    /* Allocate write & read buffers */
    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE2_DIM1 * SPACE2_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), (size_t)(SPACE2_DIM1 * SPACE2_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++)
            *tbuf++=(uint8_t)((i*SPACE2_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset on disk */
    sid1 = H5Screate_simple(SPACE2_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2A_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 10x10 hyperslab for disk dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=10; count[1]=10;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Intersect overlapping 10x10 hyperslab */
    start[0]=5; start[1]=5;
    stride[0]=1; stride[1]=1;
    count[0]=10; count[1]=10;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_NOTB,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    npoints = H5Sget_select_npoints(sid1);
    VERIFY(npoints, 75, "H5Sget_select_npoints");

    /* Select 75 hyperslab for memory dataset */
    start[0]=0;
    stride[0]=1;
    count[0]=75;
    block[0]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    npoints = H5Sget_select_npoints(sid2);
    VERIFY(npoints, 75, "H5Sget_select_npoints");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE2_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret=H5Dwrite(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read entire dataset from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,H5S_ALL,H5S_ALL,H5P_DEFAULT,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Initialize write buffer */
    for(i=0, tbuf=rbuf, tbuf2=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++, tbuf++) {
            if(((i>=0 && i<=4) && (j>=0 && j<=9)) ||
                    ((i>=5 && i<=9) && (j>=0 && j<=4))) {
                if(*tbuf!=*tbuf2)
                    printf("%d: hyperslab values don't match!, i=%d, j=%d, *tbuf=%d, *tbuf2=%d\n",__LINE__,i,j,(int)*tbuf,(int)*tbuf2);
                tbuf2++;
            } /* end if */
            else {
                if(*tbuf!=0)
                    printf("%d: hyperslab element has wrong value!, i=%d, j=%d, *tbuf=%d\n",__LINE__,i,j,(int)*tbuf);
            } /* end else */
        } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_hyper_notb_2d() */

/****************************************************************
**
**  test_select_hyper_nota_2d(): Test basic H5S (dataspace) selection code.
**      Tests 'nota' of hyperslabs in 2-D
**
****************************************************************/
static void
test_select_hyper_nota_2d(void)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hsize_t		dims1[] = {SPACE2_DIM1, SPACE2_DIM2};
    hsize_t		dims2[] = {SPACE2A_DIM1};
    hsize_t	        start[SPACE2_RANK];     /* Starting location of hyperslab */
    hsize_t		stride[SPACE2_RANK];    /* Stride of hyperslab */
    hsize_t		count[SPACE2_RANK];     /* Element count of hyperslab */
    hsize_t		block[SPACE2_RANK];     /* Block size of hyperslab */
    uint8_t    *wbuf,       /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf,       /* temporary buffer pointer */
               *tbuf2;      /* temporary buffer pointer */
    int        i,j;        /* Counters */
    herr_t		ret;    /* Generic return value		*/
    hssize_t	    npoints;	/* Number of elements in selection */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Hyperslab Selection Functions with NOTA of 2-D hyperslabs\n"));

    /* Allocate write & read buffers */
    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE2_DIM1 * SPACE2_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), (size_t)(SPACE2_DIM1 * SPACE2_DIM2));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++)
            *tbuf++=(uint8_t)((i*SPACE2_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset on disk */
    sid1 = H5Screate_simple(SPACE2_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE2A_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Select 10x10 hyperslab for disk dataset */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=10; count[1]=10;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Intersect overlapping 10x10 hyperslab */
    start[0]=5; start[1]=5;
    stride[0]=1; stride[1]=1;
    count[0]=10; count[1]=10;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(sid1,H5S_SELECT_NOTA,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    npoints = H5Sget_select_npoints(sid1);
    VERIFY(npoints, 75, "H5Sget_select_npoints");

    /* Select 75 hyperslab for memory dataset */
    start[0]=0;
    stride[0]=1;
    count[0]=75;
    block[0]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    npoints = H5Sget_select_npoints(sid2);
    VERIFY(npoints, 75, "H5Sget_select_npoints");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE2_NAME, H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write selection to disk */
    ret=H5Dwrite(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read entire dataset from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,H5S_ALL,H5S_ALL,H5P_DEFAULT,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Initialize write buffer */
    for(i=0, tbuf=rbuf, tbuf2=wbuf; i<SPACE2_DIM1; i++)
        for(j=0; j<SPACE2_DIM2; j++, tbuf++) {
            if(((i>=10 && i<=14) && (j>=5 && j<=14)) ||
                    ((i>=5 && i<=9) && (j>=10 && j<=14))) {
                if(*tbuf!=*tbuf2)
                    TestErrPrintf("%d: hyperslab values don't match!, i=%d, j=%d, *tbuf=%d, *tbuf2=%d\n",__LINE__,i,j,(int)*tbuf,(int)*tbuf2);
                tbuf2++;
            } /* end if */
            else {
                if(*tbuf!=0)
                    TestErrPrintf("%d: hyperslab element has wrong value!, i=%d, j=%d, *tbuf=%d\n",__LINE__,i,j,(int)*tbuf);
            } /* end else */
        } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_hyper_nota_2d() */

/****************************************************************
**
**  test_select_hyper_iter2(): Iterator for checking hyperslab iteration
**
****************************************************************/
static herr_t
test_select_hyper_iter2(void *_elem, hid_t UNUSED type_id, unsigned ndim, const hsize_t *point, void *_operator_data)
{
    int *tbuf=(int *)_elem,     /* temporary buffer pointer */
        **tbuf2=(int **)_operator_data; /* temporary buffer handle */
    unsigned u;             /* Local counting variable */

    if(*tbuf!=**tbuf2) {
        TestErrPrintf("Error in hyperslab iteration!\n");
        printf("location: { ");
        for(u=0; u<ndim; u++) {
            printf("%2d",(int)point[u]);
            if(u<(ndim-1))
                printf(", ");
        } /* end for */
        printf("}\n");
        printf("*tbuf=%d, **tbuf2=%d\n",*tbuf,**tbuf2);
        return(-1);
    } /* end if */
    else {
        (*tbuf2)++;
        return(0);
    }
}   /* end test_select_hyper_iter2() */

/****************************************************************
**
**  test_select_hyper_union_random_5d(): Test basic H5S (dataspace) selection code.
**      Tests random unions of 5-D hyperslabs
**
****************************************************************/
static void
test_select_hyper_union_random_5d(hid_t read_plist)
{
    hid_t		fid1;		/* HDF5 File IDs		*/
    hid_t		dataset;	/* Dataset ID			*/
    hid_t		sid1,sid2;	/* Dataspace ID			*/
    hsize_t		dims1[] = {SPACE5_DIM1, SPACE5_DIM2, SPACE5_DIM3, SPACE5_DIM4, SPACE5_DIM5};
    hsize_t		dims2[] = {SPACE6_DIM1};
    hsize_t		start[SPACE5_RANK];     /* Starting location of hyperslab */
    hsize_t		count[SPACE5_RANK];     /* Element count of hyperslab */
    int    *wbuf,          /* buffer to write to disk */
               *rbuf,       /* buffer read from disk */
               *tbuf;       /* temporary buffer pointer */
    int        i,j,k,l,m;  /* Counters */
    herr_t		ret;		/* Generic return value		*/
    hssize_t	npoints,	/* Number of elements in file selection */
                npoints2;	/* Number of elements in memory selection */
    unsigned    seed;       /* Random number seed for each test */
    unsigned    test_num;   /* Count of tests being executed */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Hyperslab Selection Functions with random unions of 5-D hyperslabs\n"));

    /* Allocate write & read buffers */
    wbuf = (int *)HDmalloc(sizeof(int) * SPACE5_DIM1 * SPACE5_DIM2 * SPACE5_DIM3 * SPACE5_DIM4 * SPACE5_DIM5);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (int *)HDcalloc(sizeof(int), (size_t)(SPACE5_DIM1 * SPACE5_DIM2 * SPACE5_DIM3 * SPACE5_DIM4 * SPACE5_DIM5));
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE5_DIM1; i++)
        for(j=0; j<SPACE5_DIM2; j++)
            for(k=0; k<SPACE5_DIM3; k++)
                for(l=0; l<SPACE5_DIM4; l++)
                    for(m=0; m<SPACE5_DIM5; m++)
                        *tbuf++=(int)(((((((i*SPACE5_DIM2)+j)*SPACE5_DIM3)+k)*SPACE5_DIM4)+l)*SPACE5_DIM5)+m;

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset on disk */
    sid1 = H5Screate_simple(SPACE5_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, SPACE5_NAME, H5T_NATIVE_INT, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Write entire dataset to disk */
    ret=H5Dwrite(dataset,H5T_NATIVE_INT,H5S_ALL,H5S_ALL,H5P_DEFAULT,wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Create dataspace for reading buffer */
    sid2 = H5Screate_simple(SPACE6_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Get initial random # seed */
    seed=(unsigned)time(NULL)+(unsigned)clock();

    /* Crunch through a bunch of random hyperslab reads from the file dataset */
    for(test_num=0; test_num<NRAND_HYPER; test_num++) {
        /* Save random # seed for later use */
        /* (Used in case of errors, to regenerate the hyperslab sequence) */
#ifndef QAK
        seed+=(unsigned)clock();
#else /* QAK */
        seed=987909620;
#endif /* QAK */
        HDsrandom(seed);

#ifdef QAK
printf("test_num=%d, seed=%u\n",test_num,seed);
#endif /* QAK */
#ifndef QAK
        for(i=0; i<NHYPERSLABS; i++) {
#else /* QAK */
        for(i=0; i<2; i++) {
#endif /* QAK */
#ifdef QAK
printf("hyperslab=%d\n",i);
#endif /* QAK */
            /* Select random hyperslab location & size for selection */
            for(j=0; j<SPACE5_RANK; j++) {
                start[j] = ((hsize_t)HDrandom() % dims1[j]);
                count[j] = (((hsize_t)HDrandom() % (dims1[j] - start[j])) + 1);
#ifdef QAK
printf("start[%d]=%d, count[%d]=%d (end[%d]=%d)\n",j,(int)start[j],j,(int)count[j],j,(int)(start[j]+count[j]-1));
#endif /* QAK */
            } /* end for */

            /* Select hyperslab */
            ret = H5Sselect_hyperslab(sid1, (i == 0 ? H5S_SELECT_SET : H5S_SELECT_OR), start, NULL, count, NULL);
            CHECK(ret, FAIL, "H5Sselect_hyperslab");
        } /* end for */

        /* Get the number of elements selected */
        npoints = H5Sget_select_npoints(sid1);
        CHECK(npoints, 0, "H5Sget_select_npoints");

        /* Select linear 1-D hyperslab for memory dataset */
        start[0] = 0;
        count[0] = (hsize_t)npoints;
        ret = H5Sselect_hyperslab(sid2, H5S_SELECT_SET, start, NULL, count, NULL);
        CHECK(ret, FAIL, "H5Sselect_hyperslab");

        npoints2 = H5Sget_select_npoints(sid2);
        VERIFY(npoints, npoints2, "H5Sget_select_npoints");

#ifdef QAK
printf("random I/O, before H5Dread(), npoints=%lu\n",(unsigned long)npoints);
{
    hsize_t blocks[128][2][SPACE5_RANK];
    hssize_t nblocks;
    int k;

    nblocks=H5Sget_select_hyper_nblocks(sid1);
    printf("nblocks=%d\n",(int)nblocks);
    H5Sget_select_hyper_blocklist(sid1,0,nblocks,blocks);
    for(j=0; j<nblocks; j++) {
        printf("Block #%d, start = {",j);
        for(k=0; k<SPACE5_RANK; k++) {
            printf("%d",blocks[j][0][k]);
            if(k<(SPACE5_RANK-1))
                printf(", ");
            else
                printf("}, end = {");
        } /* end for */
        for(k=0; k<SPACE5_RANK; k++) {
            printf("%d",blocks[j][1][k]);
            if(k<(SPACE5_RANK-1))
                printf(", ");
            else
                printf("}\n");
        } /* end for */
    } /* end for */
}
#endif /* QAK */
        /* Read selection from disk */
        ret=H5Dread(dataset,H5T_NATIVE_INT,sid2,sid1,read_plist,rbuf);
        CHECK(ret, FAIL, "H5Dread");
#ifdef QAK
printf("random I/O, after H5Dread()\n");
#endif /* QAK */

        /* Compare data read with data written out */
        tbuf=rbuf;
        ret = H5Diterate(wbuf,H5T_NATIVE_INT,sid1,test_select_hyper_iter2,&tbuf);
        if(ret<0) {
            TestErrPrintf("Random hyperslabs for seed %u failed!\n",seed);
            break;
        }

        /* Set the read buffer back to all zeroes */
        HDmemset(rbuf, 0, (size_t)SPACE6_DIM1);
    } /* end for */

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_hyper_union_random_5d() */

/****************************************************************
**
**  test_select_hyper_chunk(): Test basic H5S (dataspace) selection code.
**      Tests large hyperslab selection in chunked dataset
**
****************************************************************/
static void
test_select_hyper_chunk(hid_t fapl_plist, hid_t xfer_plist)
{
    hsize_t     dimsf[3];              /* dataset dimensions */
    hsize_t     chunk_dimsf[3] = {CHUNK_X, CHUNK_Y, CHUNK_Z};    /* chunk sizes */
    short      *data;                   /* data to write */
    short      *tmpdata;                /* data to write */

    /*
     * Data  and output buffer initialization.
     */
    hid_t       file, dataset;         /* handles */
    hid_t       dataspace;
    hid_t       memspace;
    hid_t       plist;
    hsize_t     dimsm[3];              /* memory space dimensions */
    hsize_t     dims_out[3];           /* dataset dimensions */
    herr_t      status;

    short         *data_out; /* output buffer */
    short         *tmpdata_out; /* output buffer */

    hsize_t     count[3];              /* size of the hyperslab in the file */
    hsize_t     offset[3];             /* hyperslab offset in the file */
    hsize_t     count_out[3];          /* size of the hyperslab in memory */
    hsize_t     offset_out[3];         /* hyperslab offset in memory */
    int         i, j, k, status_n, rank;

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Hyperslab I/O on Large Chunks\n"));

    /* Allocate the transfer buffers */
    data = (short *)HDmalloc(sizeof(short) * X * Y * Z);
    CHECK(data, NULL, "HDmalloc");
    data_out = (short *)HDcalloc((size_t)(NX * NY * NZ), sizeof(short));
    CHECK(data_out, NULL, "HDcalloc");

    /*
     * Data buffer initialization.
     */
    tmpdata = data;
    for (j = 0; j < X; j++)
	for (i = 0; i < Y; i++)
	    for (k = 0; k < Z; k++)
                *tmpdata++ =  (short)((k+1)%256);

    /*
     * Create a new file using H5F_ACC_TRUNC access,
     * the default file creation properties, and the default file
     * access properties.
     */
    file = H5Fcreate (FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, fapl_plist);
    CHECK(file, FAIL, "H5Fcreate");

    /*
     * Describe the size of the array and create the data space for fixed
     * size dataset.
     */
    dimsf[0] = X;
    dimsf[1] = Y;
    dimsf[2] = Z;
    dataspace = H5Screate_simple (RANK_F, dimsf, NULL);
    CHECK(dataspace, FAIL, "H5Screate_simple");

    /*
     * Create a new dataset within the file using defined dataspace and
     * chunking properties.
     */
    plist = H5Pcreate(H5P_DATASET_CREATE);
    CHECK(plist, FAIL, "H5Pcreate");
    status = H5Pset_chunk(plist, RANK_F, chunk_dimsf);
    CHECK(status, FAIL, "H5Pset_chunk");
    dataset = H5Dcreate2(file, DATASETNAME, H5T_NATIVE_UCHAR, dataspace, H5P_DEFAULT, plist, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /*
     * Define hyperslab in the dataset.
     */
    offset[0] = 0;
    offset[1] = 0;
    offset[2] = 0;
    count[0]  = NX_SUB;
    count[1]  = NY_SUB;
    count[2]  = NZ_SUB;
    status = H5Sselect_hyperslab (dataspace, H5S_SELECT_SET, offset, NULL,
                                  count, NULL);
    CHECK(status, FAIL, "H5Sselect_hyperslab");

    /*
     * Define the memory dataspace.
     */
    dimsm[0] = NX;
    dimsm[1] = NY;
    dimsm[2] = NZ;
    memspace = H5Screate_simple (RANK_M, dimsm, NULL);
    CHECK(memspace, FAIL, "H5Screate_simple");

    /*
     * Define memory hyperslab.
     */
    offset_out[0] = 0;
    offset_out[1] = 0;
    offset_out[2] = 0;
    count_out[0]  = NX_SUB;
    count_out[1]  = NY_SUB;
    count_out[2]  = NZ_SUB;
    status = H5Sselect_hyperslab (memspace, H5S_SELECT_SET, offset_out, NULL,
                                  count_out, NULL);
    CHECK(status, FAIL, "H5Sselect_hyperslab");

    /*
     * Write the data to the dataset using hyperslabs
     */
    status = H5Dwrite (dataset, H5T_NATIVE_SHORT, memspace, dataspace,
                      xfer_plist, data);
    CHECK(status, FAIL, "H5Dwrite");

    /*
     * Close/release resources.
     */
    status=H5Pclose (plist);
    CHECK(status, FAIL, "H5Pclose");
    status=H5Sclose (dataspace);
    CHECK(status, FAIL, "H5Sclose");
    status=H5Sclose (memspace);
    CHECK(status, FAIL, "H5Sclose");
    status=H5Dclose (dataset);
    CHECK(status, FAIL, "H5Dclose");
    status=H5Fclose (file);
    CHECK(status, FAIL, "H5Fclose");


/*************************************************************

  This reads the hyperslab from the test.h5 file just
  created, into a 3-dimensional plane of the 3-dimensional
  array.

 ************************************************************/

    /*
     * Open the file and the dataset.
     */
    file = H5Fopen(FILENAME, H5F_ACC_RDONLY, fapl_plist);
    CHECK(file, FAIL, "H5Fopen");
    dataset = H5Dopen2(file, DATASETNAME, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dopen2");

    dataspace = H5Dget_space(dataset);    /* dataspace handle */
    CHECK(dataspace, FAIL, "H5Dget_space");
    rank = H5Sget_simple_extent_ndims(dataspace);
    VERIFY(rank, 3, "H5Sget_simple_extent_ndims");
    status_n = H5Sget_simple_extent_dims(dataspace, dims_out, NULL);
    CHECK(status_n, FAIL, "H5Sget_simple_extent_dims");
    VERIFY(dims_out[0], dimsf[0], "Dataset dimensions");
    VERIFY(dims_out[1], dimsf[1], "Dataset dimensions");
    VERIFY(dims_out[2], dimsf[2], "Dataset dimensions");

    /*
     * Define hyperslab in the dataset.
     */
    offset[0] = 0;
    offset[1] = 0;
    offset[2] = 0;
    count[0]  = NX_SUB;
    count[1]  = NY_SUB;
    count[2]  = NZ_SUB;
    status = H5Sselect_hyperslab (dataspace, H5S_SELECT_SET, offset, NULL,
                                  count, NULL);
    CHECK(status, FAIL, "H5Sselect_hyperslab");

    /*
     * Define the memory dataspace.
     */
    dimsm[0] = NX;
    dimsm[1] = NY;
    dimsm[2] = NZ;
    memspace = H5Screate_simple (RANK_M, dimsm, NULL);
    CHECK(memspace, FAIL, "H5Screate_simple");

    /*
     * Define memory hyperslab.
     */
    offset_out[0] = 0;
    offset_out[1] = 0;
    offset_out[2] = 0;
    count_out[0]  = NX_SUB;
    count_out[1]  = NY_SUB;
    count_out[2]  = NZ_SUB;
    status = H5Sselect_hyperslab (memspace, H5S_SELECT_SET, offset_out, NULL,
                                  count_out, NULL);
    CHECK(status, FAIL, "H5Sselect_hyperslab");

    /*
     * Read data from hyperslab in the file into the hyperslab in
     * memory and display.
     */
    status = H5Dread (dataset, H5T_NATIVE_SHORT, memspace, dataspace,
                      xfer_plist, data_out);
    CHECK(status, FAIL, "H5Dread");

    /* Compare data written with data read in */
    tmpdata = data;
    tmpdata_out = data_out;
    for (j = 0; j < X; j++)
	for (i = 0; i < Y; i++)
	    for (k = 0; k < Z; k++,tmpdata++,tmpdata_out++) {
                if(*tmpdata!=*tmpdata_out)
                    TestErrPrintf("Line %d: Error! j=%d, i=%d, k=%d, *tmpdata=%x, *tmpdata_out=%x\n",__LINE__,j,i,k,(unsigned)*tmpdata,(unsigned)*tmpdata_out);
            } /* end for */

    /*
     * Close and release resources.
     */
    status=H5Dclose (dataset);
    CHECK(status, FAIL, "H5Dclose");
    status=H5Sclose (dataspace);
    CHECK(status, FAIL, "H5Sclose");
    status=H5Sclose (memspace);
    CHECK(status, FAIL, "H5Sclose");
    status=H5Fclose (file);
    CHECK(status, FAIL, "H5Fclose");
    HDfree (data);
    HDfree (data_out);
}   /* test_select_hyper_chunk() */

/****************************************************************
**
**  test_select_point_chunk(): Test basic H5S (dataspace) selection code.
**      Tests combinations of hyperslab and point selections on
**      chunked datasets.
**
****************************************************************/
static void
test_select_point_chunk(void)
{
    hsize_t     dimsf[SPACE7_RANK];     /* dataset dimensions */
    hsize_t     chunk_dimsf[SPACE7_RANK] = {SPACE7_CHUNK_DIM1,SPACE7_CHUNK_DIM2};    /* chunk sizes */
    unsigned    *data;                   /* data to write */
    unsigned    *tmpdata;                /* data to write */

    /*
     * Data  and output buffer initialization.
     */
    hid_t       file, dataset;         /* handles */
    hid_t       dataspace;
    hid_t       pnt1_space;                     /* Dataspace to hold 1st point selection */
    hid_t       pnt2_space;                     /* Dataspace to hold 2nd point selection */
    hid_t       hyp1_space;                     /* Dataspace to hold 1st hyperslab selection */
    hid_t       hyp2_space;                     /* Dataspace to hold 2nd hyperslab selection */
    hid_t       dcpl;
    herr_t      ret;                            /* Generic return value */

    unsigned    *data_out;			/* output buffer */
#ifdef LATER
    unsigned    *tmpdata_out;			/* output buffer */
#endif /* LATER */

    hsize_t     start[SPACE7_RANK];             /* hyperslab offset */
    hsize_t     count[SPACE7_RANK];             /* size of the hyperslab */
    hsize_t     points[SPACE7_NPOINTS][SPACE7_RANK];   /* points for selection */
    unsigned    i, j;                           /* Local index variables */

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Point Selections on Chunked Datasets\n"));

    /* Allocate the transfer buffers */
    data = (unsigned *)HDmalloc(sizeof(unsigned) * SPACE7_DIM1 * SPACE7_DIM2);
    CHECK(data, NULL, "HDmalloc");
    data_out = (unsigned *)HDcalloc((size_t)(SPACE7_DIM1 * SPACE7_DIM2), sizeof(unsigned));
    CHECK(data_out, NULL, "HDcalloc");

    /*
     * Data buffer initialization.
     */
    tmpdata = data;
    for (i = 0; i < SPACE7_DIM1; i++)
	for (j = 0; j < SPACE7_DIM1; j++)
            *tmpdata++ = ((i*SPACE7_DIM2)+j)%256;

    /*
     * Create a new file using H5F_ACC_TRUNC access,
     * the default file creation properties and file
     * access properties.
     */
    file = H5Fcreate (FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(file, FAIL, "H5Fcreate");

    /* Create file dataspace */
    dimsf[0] = SPACE7_DIM1;
    dimsf[1] = SPACE7_DIM2;
    dataspace = H5Screate_simple (SPACE7_RANK, dimsf, NULL);
    CHECK(dataspace, FAIL, "H5Screate_simple");

    /*
     * Create a new dataset within the file using defined dataspace and
     * chunking properties.
     */
    dcpl = H5Pcreate(H5P_DATASET_CREATE);
    CHECK(dcpl, FAIL, "H5Pcreate");
    ret = H5Pset_chunk(dcpl, SPACE7_RANK, chunk_dimsf);
    CHECK(ret, FAIL, "H5Pset_chunk");
    dataset = H5Dcreate2(file, DATASETNAME, H5T_NATIVE_UCHAR, dataspace, H5P_DEFAULT, dcpl, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Create 1st point selection */
    pnt1_space = H5Scopy (dataspace);
    CHECK(pnt1_space, FAIL, "H5Scopy");

    points[0][0]=3;
    points[0][1]=3;
    points[1][0]=3;
    points[1][1]=8;
    points[2][0]=8;
    points[2][1]=3;
    points[3][0]=8;
    points[3][1]=8;
    points[4][0]=1;    /* In same chunk as point #0, but "earlier" in chunk */
    points[4][1]=1;
    points[5][0]=1;    /* In same chunk as point #1, but "earlier" in chunk */
    points[5][1]=6;
    points[6][0]=6;    /* In same chunk as point #2, but "earlier" in chunk */
    points[6][1]=1;
    points[7][0]=6;    /* In same chunk as point #3, but "earlier" in chunk */
    points[7][1]=6;
    ret = H5Sselect_elements(pnt1_space, H5S_SELECT_SET, (size_t)SPACE7_NPOINTS, (const hsize_t *)points);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Create 1st hyperslab selection */
    hyp1_space = H5Scopy (dataspace);
    CHECK(hyp1_space, FAIL, "H5Scopy");

    start[0]=2; start[1]=2;
    count[0]=4; count[1]=2;
    ret = H5Sselect_hyperslab(hyp1_space,H5S_SELECT_SET,start,NULL,count,NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Write out data using 1st point selection for file & hyperslab for memory */
    ret=H5Dwrite(dataset,H5T_NATIVE_UINT,hyp1_space,pnt1_space,H5P_DEFAULT,data);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Create 2nd point selection */
    pnt2_space = H5Scopy (dataspace);
    CHECK(pnt2_space, FAIL, "H5Scopy");

    points[0][0]=4;
    points[0][1]=4;
    points[1][0]=4;
    points[1][1]=9;
    points[2][0]=9;
    points[2][1]=4;
    points[3][0]=9;
    points[3][1]=9;
    points[4][0]=2;    /* In same chunk as point #0, but "earlier" in chunk */
    points[4][1]=2;
    points[5][0]=2;    /* In same chunk as point #1, but "earlier" in chunk */
    points[5][1]=7;
    points[6][0]=7;    /* In same chunk as point #2, but "earlier" in chunk */
    points[6][1]=2;
    points[7][0]=7;    /* In same chunk as point #3, but "earlier" in chunk */
    points[7][1]=7;
    ret = H5Sselect_elements(pnt2_space, H5S_SELECT_SET, (size_t)SPACE7_NPOINTS, (const hsize_t *)points);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Create 2nd hyperslab selection */
    hyp2_space = H5Scopy (dataspace);
    CHECK(hyp2_space, FAIL, "H5Scopy");

    start[0]=2; start[1]=4;
    count[0]=4; count[1]=2;
    ret = H5Sselect_hyperslab(hyp2_space,H5S_SELECT_SET,start,NULL,count,NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Write out data using 2nd hyperslab selection for file & point for memory */
    ret=H5Dwrite(dataset,H5T_NATIVE_UINT,pnt2_space,hyp2_space,H5P_DEFAULT,data);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close everything (except selections) */
    ret = H5Pclose(dcpl);
    CHECK(ret, FAIL, "H5Pclose");
    ret = H5Sclose(dataspace);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");
    ret = H5Fclose(file);
    CHECK(ret, FAIL, "H5Fclose");

    /* Re-open file & dataset */
    file = H5Fopen(FILENAME, H5F_ACC_RDONLY, H5P_DEFAULT);
    CHECK(file, FAIL, "H5Fopen");
    dataset = H5Dopen2(file, DATASETNAME, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dopen2");

    /* Read data using 1st point selection for file and hyperslab for memory */
    ret = H5Dread(dataset, H5T_NATIVE_UINT, hyp1_space, pnt1_space, H5P_DEFAULT, data_out);
    CHECK(ret, FAIL, "H5Dread");

/* Verify data (later) */

    /* Read data using 2nd hyperslab selection for file and point for memory */
    ret = H5Dread(dataset, H5T_NATIVE_UINT, pnt2_space, hyp2_space, H5P_DEFAULT, data_out);
    CHECK(ret, FAIL, "H5Dread");

/* Verify data (later) */

    /* Close everything (inclusing selections) */
    ret = H5Sclose(pnt1_space);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(pnt2_space);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(hyp1_space);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(hyp2_space);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");
    ret = H5Fclose(file);
    CHECK(ret, FAIL, "H5Fclose");

    HDfree(data);
    HDfree (data_out);
}   /* test_select_point_chunk() */

/****************************************************************
**
**  test_select_sclar_chunk(): Test basic H5S (dataspace) selection code.
**      Tests using a scalar dataspace (in memory) to access chunked datasets.
**
****************************************************************/
static void
test_select_scalar_chunk(void)
{
    hid_t file_id;              /* File ID */
    hid_t dcpl;                 /* Dataset creation property list */
    hid_t dsid;                 /* Dataset ID */
    hid_t sid;                  /* Dataspace ID */
    hid_t m_sid;                /* Memory dataspace */
    hsize_t dims[] = {2};       /* Dataset dimensions */
    hsize_t maxdims[] = {H5S_UNLIMITED};        /* Dataset maximum dimensions */
    hsize_t offset[] = {0};     /* Hyperslab start */
    hsize_t count[] = {1};      /* Hyperslab count */
    unsigned data = 2;          /* Data to write */
    herr_t ret;

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Scalar Dataspaces and Chunked Datasets\n"));

    file_id = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(file_id, FAIL, "H5Fcreate");

    dcpl = H5Pcreate(H5P_DATASET_CREATE);
    CHECK(dcpl, FAIL, "H5Pcreate");

    dims[0] = 1024U;
    ret = H5Pset_chunk(dcpl, 1, dims);
    CHECK(ret, FAIL, "H5Pset_chunk");

    /* Create 1-D dataspace */
    sid = H5Screate_simple(1, dims, maxdims);
    CHECK(sid, FAIL, "H5Screate_simple");

    dsid = H5Dcreate2(file_id, "dset", H5T_NATIVE_UINT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT);
    CHECK(dsid, FAIL, "H5Dcreate2");

    /* Select scalar area (offset 0, count 1) */
    ret = H5Sselect_hyperslab(sid, H5S_SELECT_SET, offset, NULL, count, NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create scalar memory dataspace */
    m_sid = H5Screate(H5S_SCALAR);
    CHECK(m_sid, FAIL, "H5Screate");

    /* Write out data using scalar dataspace for memory dataspace */
    ret = H5Dwrite (dsid, H5T_NATIVE_UINT, m_sid, sid, H5P_DEFAULT, &data);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close resources */
    ret = H5Sclose(m_sid);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(sid);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Dclose(dsid);
    CHECK(ret, FAIL, "H5Dclose");
    ret = H5Pclose(dcpl);
    CHECK(ret, FAIL, "H5Pclose");
    ret = H5Fclose (file_id);
    CHECK(ret, FAIL, "H5Fclose");
}   /* test_select_scalar_chunk() */

/****************************************************************
**
**  test_select_valid(): Test basic H5S (dataspace) selection code.
**      Tests selection validity
**
****************************************************************/
static void
test_select_valid(void)
{
    herr_t error;
    htri_t valid;
    hid_t main_space, sub_space;
    hsize_t safe_start[2]={1,1};
    hsize_t safe_count[2]={1,1};
    hsize_t start[2];
    hsize_t dims[2],maxdims[2],size[2],count[2];

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Selection Validity\n"));

    MESSAGE(8, ( "Case 1 : sub_space is not a valid dataspace\n"));
    dims[0] = dims[1] = H5S_UNLIMITED;

    sub_space = H5Screate_simple(2,dims,NULL);
    VERIFY(sub_space, FAIL, "H5Screate_simple");

    valid=H5Sselect_valid(sub_space);
    VERIFY(valid, FAIL, "H5Sselect_valid");

    /* Set arrays and dataspace for the rest of the cases */
    count[0] = count[1] = 1;
    dims[0] = dims[1] = maxdims[0] = maxdims[1] = 10;

    main_space = H5Screate_simple(2,dims,maxdims);
    CHECK(main_space, FAIL, "H5Screate_simple");

    MESSAGE(8, ( "Case 2 : sub_space is a valid but closed dataspace\n"));
    sub_space = H5Scopy(main_space);
    CHECK(sub_space, FAIL, "H5Scopy");

    error=H5Sclose(sub_space);
    CHECK(error, FAIL, "H5Sclose");

    valid=H5Sselect_valid(sub_space);
    VERIFY(valid, FAIL, "H5Sselect_valid");

    MESSAGE(8, ( "Case 3 : in the dimensions\nTry offset (4,4) and size(6,6), the original space is of size (10,10)\n"));
    start[0] = start[1] = 4;
    size[0] = size[1] = 6;

    sub_space = H5Scopy(main_space);
    CHECK(sub_space, FAIL, "H5Scopy");

    error=H5Sselect_hyperslab(sub_space,H5S_SELECT_SET,start,size,count,size);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    valid=H5Sselect_valid(sub_space);
    VERIFY(valid, TRUE, "H5Sselect_valid");

    error=H5Sselect_hyperslab(sub_space,H5S_SELECT_OR,safe_start,NULL,safe_count,NULL);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    valid=H5Sselect_valid(sub_space);
    VERIFY(valid, TRUE, "H5Sselect_valid");

    error=H5Sclose(sub_space);
    CHECK(error, FAIL, "H5Sclose");

    MESSAGE(8, ( "Case 4 : exceed dimensions by 1\nTry offset (5,5) and size(6,6), the original space is of size (10,10)\n"));
    start[0] = start[1] = 5;
    size[0] = size[1] = 6;

    sub_space = H5Scopy(main_space);
    CHECK(sub_space, FAIL, "H5Scopy");

    error=H5Sselect_hyperslab(sub_space,H5S_SELECT_SET,start,size,count,size);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    valid=H5Sselect_valid(sub_space);
    VERIFY(valid, FALSE, "H5Sselect_valid");

    error=H5Sselect_hyperslab(sub_space,H5S_SELECT_OR,safe_start,NULL,safe_count,NULL);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    valid=H5Sselect_valid(sub_space);
    VERIFY(valid, FALSE, "H5Sselect_valid");

    error=H5Sclose(sub_space);
    CHECK(error, FAIL, "H5Sclose");

    MESSAGE(8, ( "Case 5 : exceed dimensions by 2\nTry offset (6,6) and size(6,6), the original space is of size (10,10)\n"));
    start[0] = start[1] = 6;
    size[0] = size[1] = 6;

    sub_space = H5Scopy(main_space);
    CHECK(sub_space, FAIL, "H5Scopy");

    error=H5Sselect_hyperslab(sub_space,H5S_SELECT_SET,start,size,count,size);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    valid=H5Sselect_valid(sub_space);
    VERIFY(valid, FALSE, "H5Sselect_valid");

    error=H5Sselect_hyperslab(sub_space,H5S_SELECT_OR,safe_start,NULL,safe_count,NULL);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    valid=H5Sselect_valid(sub_space);
    VERIFY(valid, FALSE, "H5Sselect_valid");

    error=H5Sclose(sub_space);
    CHECK(error, FAIL, "H5Sclose");
    error=H5Sclose(main_space);
    CHECK(error, FAIL, "H5Sclose");
}   /* test_select_valid() */

/****************************************************************
**
**  test_select_combine(): Test basic H5S (dataspace) selection code.
**      Tests combining "all" and "none" selections with hyperslab
**      operations.
**
****************************************************************/
static void
test_select_combine(void)
{
    hid_t base_id;      /* Base dataspace for test */
    hid_t all_id;       /* Dataspace for "all" selection */
    hid_t none_id;      /* Dataspace for "none" selection */
    hid_t space1;       /* Temporary dataspace #1 */
    hsize_t start[SPACE7_RANK];        /* Hyperslab start */
    hsize_t stride[SPACE7_RANK];        /* Hyperslab stride */
    hsize_t count[SPACE7_RANK];         /* Hyperslab count */
    hsize_t block[SPACE7_RANK];         /* Hyperslab block */
    hsize_t dims[SPACE7_RANK]={SPACE7_DIM1,SPACE7_DIM2};        /* Dimensions of dataspace */
    H5S_sel_type sel_type;      /* Selection type */
    hssize_t nblocks;   /* Number of hyperslab blocks */
    hsize_t blocks[128][2][SPACE7_RANK];    /* List of blocks */
    herr_t error;

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Selection Combinations\n"));

    /* Create dataspace for dataset on disk */
    base_id = H5Screate_simple(SPACE7_RANK, dims, NULL);
    CHECK(base_id, FAIL, "H5Screate_simple");

    /* Copy base dataspace and set selection to "all" */
    all_id=H5Scopy(base_id);
    CHECK(all_id, FAIL, "H5Scopy");
    error=H5Sselect_all(all_id);
    CHECK(error, FAIL, "H5Sselect_all");
    sel_type=H5Sget_select_type(all_id);
    VERIFY(sel_type, H5S_SEL_ALL, "H5Sget_select_type");

    /* Copy base dataspace and set selection to "none" */
    none_id=H5Scopy(base_id);
    CHECK(none_id, FAIL, "H5Scopy");
    error=H5Sselect_none(none_id);
    CHECK(error, FAIL, "H5Sselect_none");
    sel_type=H5Sget_select_type(none_id);
    VERIFY(sel_type, H5S_SEL_NONE, "H5Sget_select_type");


    /* Copy "all" selection & space */
    space1=H5Scopy(all_id);
    CHECK(space1, FAIL, "H5Scopy");

    /* 'OR' "all" selection with another hyperslab */
    start[0]=start[1]=0;
    stride[0]=stride[1]=1;
    count[0]=count[1]=1;
    block[0]=block[1]=5;
    error=H5Sselect_hyperslab(space1,H5S_SELECT_OR,start,stride,count,block);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    /* Verify that it's still "all" selection */
    sel_type=H5Sget_select_type(space1);
    VERIFY(sel_type, H5S_SEL_ALL, "H5Sget_select_type");

    /* Close temporary dataspace */
    error=H5Sclose(space1);
    CHECK(error, FAIL, "H5Sclose");

    /* Copy "all" selection & space */
    space1=H5Scopy(all_id);
    CHECK(space1, FAIL, "H5Scopy");

    /* 'AND' "all" selection with another hyperslab */
    start[0]=start[1]=0;
    stride[0]=stride[1]=1;
    count[0]=count[1]=1;
    block[0]=block[1]=5;
    error=H5Sselect_hyperslab(space1,H5S_SELECT_AND,start,stride,count,block);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    /* Verify that the new selection is the same at the original block */
    sel_type=H5Sget_select_type(space1);
    VERIFY(sel_type, H5S_SEL_HYPERSLABS, "H5Sget_select_type");

    /* Verify that there is only one block */
    nblocks=H5Sget_select_hyper_nblocks(space1);
    VERIFY(nblocks, 1, "H5Sget_select_hyper_nblocks");

    /* Retrieve the block defined */
    HDmemset(blocks,-1,sizeof(blocks));  /* Reset block list */
    error=H5Sget_select_hyper_blocklist(space1,(hsize_t)0,(hsize_t)nblocks,(hsize_t *)blocks);
    CHECK(error, FAIL, "H5Sget_select_hyper_blocklist");

    /* Verify that the correct block is defined */
    VERIFY(blocks[0][0][0], (hsize_t)start[0], "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][0][1], (hsize_t)start[1], "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][1][0], (block[0]-1), "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][1][1], (block[1]-1), "H5Sget_select_hyper_blocklist");

    /* Close temporary dataspace */
    error=H5Sclose(space1);
    CHECK(error, FAIL, "H5Sclose");

    /* Copy "all" selection & space */
    space1=H5Scopy(all_id);
    CHECK(space1, FAIL, "H5Scopy");

    /* 'XOR' "all" selection with another hyperslab */
    start[0]=start[1]=0;
    stride[0]=stride[1]=1;
    count[0]=count[1]=1;
    block[0]=block[1]=5;
    error=H5Sselect_hyperslab(space1,H5S_SELECT_XOR,start,stride,count,block);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    /* Verify that the new selection is an inversion of the original block */
    sel_type=H5Sget_select_type(space1);
    VERIFY(sel_type, H5S_SEL_HYPERSLABS, "H5Sget_select_type");

    /* Verify that there are two blocks */
    nblocks=H5Sget_select_hyper_nblocks(space1);
    VERIFY(nblocks, 2, "H5Sget_select_hyper_nblocks");

    /* Retrieve the block defined */
    HDmemset(blocks,-1,sizeof(blocks));  /* Reset block list */
    error=H5Sget_select_hyper_blocklist(space1,(hsize_t)0,(hsize_t)nblocks,(hsize_t *)blocks);
    CHECK(error, FAIL, "H5Sget_select_hyper_blocklist");

    /* Verify that the correct block is defined */
    VERIFY(blocks[0][0][0], 0, "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][0][1], 5, "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][1][0], 4, "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][1][1], 9, "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[1][0][0], 5, "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[1][0][1], 0, "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[1][1][0], 9, "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[1][1][1], 9, "H5Sget_select_hyper_blocklist");

    /* Close temporary dataspace */
    error=H5Sclose(space1);
    CHECK(error, FAIL, "H5Sclose");

    /* Copy "all" selection & space */
    space1=H5Scopy(all_id);
    CHECK(space1, FAIL, "H5Scopy");

    /* 'NOTB' "all" selection with another hyperslab */
    start[0]=start[1]=0;
    stride[0]=stride[1]=1;
    count[0]=count[1]=1;
    block[0]=block[1]=5;
    error=H5Sselect_hyperslab(space1,H5S_SELECT_NOTB,start,stride,count,block);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    /* Verify that the new selection is an inversion of the original block */
    sel_type=H5Sget_select_type(space1);
    VERIFY(sel_type, H5S_SEL_HYPERSLABS, "H5Sget_select_type");

    /* Verify that there are two blocks */
    nblocks=H5Sget_select_hyper_nblocks(space1);
    VERIFY(nblocks, 2, "H5Sget_select_hyper_nblocks");

    /* Retrieve the block defined */
    HDmemset(blocks,-1,sizeof(blocks));  /* Reset block list */
    error=H5Sget_select_hyper_blocklist(space1,(hsize_t)0,(hsize_t)nblocks,(hsize_t *)blocks);
    CHECK(error, FAIL, "H5Sget_select_hyper_blocklist");

    /* Verify that the correct block is defined */
    VERIFY(blocks[0][0][0], 0, "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][0][1], 5, "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][1][0], 4, "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][1][1], 9, "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[1][0][0], 5, "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[1][0][1], 0, "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[1][1][0], 9, "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[1][1][1], 9, "H5Sget_select_hyper_blocklist");

    /* Close temporary dataspace */
    error=H5Sclose(space1);
    CHECK(error, FAIL, "H5Sclose");

    /* Copy "all" selection & space */
    space1=H5Scopy(all_id);
    CHECK(space1, FAIL, "H5Scopy");

    /* 'NOTA' "all" selection with another hyperslab */
    start[0]=start[1]=0;
    stride[0]=stride[1]=1;
    count[0]=count[1]=1;
    block[0]=block[1]=5;
    error=H5Sselect_hyperslab(space1,H5S_SELECT_NOTA,start,stride,count,block);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    /* Verify that the new selection is the "none" selection */
    sel_type=H5Sget_select_type(space1);
    VERIFY(sel_type, H5S_SEL_NONE, "H5Sget_select_type");

    /* Close temporary dataspace */
    error=H5Sclose(space1);
    CHECK(error, FAIL, "H5Sclose");


    /* Copy "none" selection & space */
    space1=H5Scopy(none_id);
    CHECK(space1, FAIL, "H5Scopy");

    /* 'OR' "none" selection with another hyperslab */
    start[0]=start[1]=0;
    stride[0]=stride[1]=1;
    count[0]=count[1]=1;
    block[0]=block[1]=5;
    error=H5Sselect_hyperslab(space1,H5S_SELECT_OR,start,stride,count,block);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    /* Verify that the new selection is the same as the original hyperslab */
    sel_type=H5Sget_select_type(space1);
    VERIFY(sel_type, H5S_SEL_HYPERSLABS, "H5Sget_select_type");

    /* Verify that there is only one block */
    nblocks=H5Sget_select_hyper_nblocks(space1);
    VERIFY(nblocks, 1, "H5Sget_select_hyper_nblocks");

    /* Retrieve the block defined */
    HDmemset(blocks,-1,sizeof(blocks));  /* Reset block list */
    error=H5Sget_select_hyper_blocklist(space1,(hsize_t)0,(hsize_t)nblocks,(hsize_t *)blocks);
    CHECK(error, FAIL, "H5Sget_select_hyper_blocklist");

    /* Verify that the correct block is defined */
    VERIFY(blocks[0][0][0], (hsize_t)start[0], "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][0][1], (hsize_t)start[1], "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][1][0], (block[0]-1), "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][1][1], (block[1]-1), "H5Sget_select_hyper_blocklist");

    /* Close temporary dataspace */
    error=H5Sclose(space1);
    CHECK(error, FAIL, "H5Sclose");

    /* Copy "none" selection & space */
    space1=H5Scopy(none_id);
    CHECK(space1, FAIL, "H5Scopy");

    /* 'AND' "none" selection with another hyperslab */
    start[0]=start[1]=0;
    stride[0]=stride[1]=1;
    count[0]=count[1]=1;
    block[0]=block[1]=5;
    error=H5Sselect_hyperslab(space1,H5S_SELECT_AND,start,stride,count,block);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    /* Verify that the new selection is the "none" selection */
    sel_type=H5Sget_select_type(space1);
    VERIFY(sel_type, H5S_SEL_NONE, "H5Sget_select_type");

    /* Close temporary dataspace */
    error=H5Sclose(space1);
    CHECK(error, FAIL, "H5Sclose");

    /* Copy "none" selection & space */
    space1=H5Scopy(none_id);
    CHECK(space1, FAIL, "H5Scopy");

    /* 'XOR' "none" selection with another hyperslab */
    start[0]=start[1]=0;
    stride[0]=stride[1]=1;
    count[0]=count[1]=1;
    block[0]=block[1]=5;
    error=H5Sselect_hyperslab(space1,H5S_SELECT_XOR,start,stride,count,block);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    /* Verify that the new selection is the same as the original hyperslab */
    sel_type=H5Sget_select_type(space1);
    VERIFY(sel_type, H5S_SEL_HYPERSLABS, "H5Sget_select_type");

    /* Verify that there is only one block */
    nblocks=H5Sget_select_hyper_nblocks(space1);
    VERIFY(nblocks, 1, "H5Sget_select_hyper_nblocks");

    /* Retrieve the block defined */
    HDmemset(blocks,-1,sizeof(blocks));  /* Reset block list */
    error=H5Sget_select_hyper_blocklist(space1,(hsize_t)0,(hsize_t)nblocks,(hsize_t *)blocks);
    CHECK(error, FAIL, "H5Sget_select_hyper_blocklist");

    /* Verify that the correct block is defined */
    VERIFY(blocks[0][0][0], (hsize_t)start[0], "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][0][1], (hsize_t)start[1], "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][1][0], (block[0]-1), "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][1][1], (block[1]-1), "H5Sget_select_hyper_blocklist");

    /* Close temporary dataspace */
    error=H5Sclose(space1);
    CHECK(error, FAIL, "H5Sclose");

    /* Copy "none" selection & space */
    space1=H5Scopy(none_id);
    CHECK(space1, FAIL, "H5Scopy");

    /* 'NOTB' "none" selection with another hyperslab */
    start[0]=start[1]=0;
    stride[0]=stride[1]=1;
    count[0]=count[1]=1;
    block[0]=block[1]=5;
    error=H5Sselect_hyperslab(space1,H5S_SELECT_NOTB,start,stride,count,block);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    /* Verify that the new selection is the "none" selection */
    sel_type=H5Sget_select_type(space1);
    VERIFY(sel_type, H5S_SEL_NONE, "H5Sget_select_type");

    /* Close temporary dataspace */
    error=H5Sclose(space1);
    CHECK(error, FAIL, "H5Sclose");

    /* Copy "none" selection & space */
    space1=H5Scopy(none_id);
    CHECK(space1, FAIL, "H5Scopy");

    /* 'NOTA' "none" selection with another hyperslab */
    start[0]=start[1]=0;
    stride[0]=stride[1]=1;
    count[0]=count[1]=1;
    block[0]=block[1]=5;
    error=H5Sselect_hyperslab(space1,H5S_SELECT_NOTA,start,stride,count,block);
    CHECK(error, FAIL, "H5Sselect_hyperslab");

    /* Verify that the new selection is the same as the original hyperslab */
    sel_type=H5Sget_select_type(space1);
    VERIFY(sel_type, H5S_SEL_HYPERSLABS, "H5Sget_select_type");

    /* Verify that there is only one block */
    nblocks=H5Sget_select_hyper_nblocks(space1);
    VERIFY(nblocks, 1, "H5Sget_select_hyper_nblocks");

    /* Retrieve the block defined */
    HDmemset(blocks,-1,sizeof(blocks));  /* Reset block list */
    error=H5Sget_select_hyper_blocklist(space1,(hsize_t)0,(hsize_t)nblocks,(hsize_t *)blocks);
    CHECK(error, FAIL, "H5Sget_select_hyper_blocklist");

    /* Verify that the correct block is defined */
    VERIFY(blocks[0][0][0], (hsize_t)start[0], "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][0][1], (hsize_t)start[1], "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][1][0], (block[0]-1), "H5Sget_select_hyper_blocklist");
    VERIFY(blocks[0][1][1], (block[1]-1), "H5Sget_select_hyper_blocklist");

    /* Close temporary dataspace */
    error=H5Sclose(space1);
    CHECK(error, FAIL, "H5Sclose");


    /* Close dataspaces */
    error=H5Sclose(base_id);
    CHECK(error, FAIL, "H5Sclose");

    error=H5Sclose(all_id);
    CHECK(error, FAIL, "H5Sclose");

    error=H5Sclose(none_id);
    CHECK(error, FAIL, "H5Sclose");
}   /* test_select_combine() */

/*
 * Typedef for iteration structure used in the fill value tests
 */
typedef struct {
    unsigned short fill_value;  /* The fill value to check */
    size_t curr_coord;          /* Current coordinate to examine */
    hsize_t *coords;            /* Pointer to selection's coordinates */
} fill_iter_info;

/****************************************************************
**
**  test_select_hyper_iter3(): Iterator for checking hyperslab iteration
**
****************************************************************/
static herr_t
test_select_hyper_iter3(void *_elem, hid_t UNUSED type_id, unsigned ndim, const hsize_t *point, void *_operator_data)
{
    unsigned *tbuf = (unsigned *)_elem;     /* temporary buffer pointer */
    fill_iter_info *iter_info = (fill_iter_info *)_operator_data; /* Get the pointer to the iterator information */
    hsize_t *coord_ptr;        /* Pointer to the coordinate information for a point*/

    /* Check value in current buffer location */
    if(*tbuf != iter_info->fill_value)
        return(-1);
    else {
        /* Check number of dimensions */
        if(ndim != SPACE7_RANK)
            return(-1);
        else {
            /* Check Coordinates */
            coord_ptr = iter_info->coords + (2 * iter_info->curr_coord);
            iter_info->curr_coord++;
            if(coord_ptr[0] != point[0])
                return(-1);
            else if(coord_ptr[1] != point[1])
                return(-1);
            else
                return(0);
        } /* end else */
    } /* end else */
}   /* end test_select_hyper_iter3() */

/****************************************************************
**
**  test_select_fill_all(): Test basic H5S (dataspace) selection code.
**      Tests filling "all" selections
**
****************************************************************/
static void
test_select_fill_all(void)
{
    hid_t	sid1;           /* Dataspace ID */
    hsize_t	dims1[] = {SPACE7_DIM1, SPACE7_DIM2};
    unsigned    fill_value;     /* Fill value */
    fill_iter_info iter_info;   /* Iterator information structure */
    hsize_t     points[SPACE7_DIM1*SPACE7_DIM2][SPACE7_RANK];   /* Coordinates of selection */
    unsigned   *wbuf,           /* buffer to write to disk */
               *tbuf;           /* temporary buffer pointer */
    unsigned    u, v;           /* Counters */
    herr_t	ret;		/* Generic return value	*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Filling 'all' Selections\n"));

    /* Allocate memory buffer */
    wbuf = (unsigned *)HDmalloc(sizeof(unsigned) * SPACE7_DIM1 * SPACE7_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");

    /* Initialize memory buffer */
    for(u = 0, tbuf = wbuf; u < SPACE7_DIM1; u++)
        for(v = 0; v < SPACE7_DIM2; v++)
            *tbuf++ = (u * SPACE7_DIM2) + v;

    /* Create dataspace for dataset on disk */
    sid1 = H5Screate_simple(SPACE7_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Space defaults to "all" selection */

    /* Set fill value */
    fill_value = SPACE7_FILL;

    /* Fill selection in memory */
    ret = H5Dfill(&fill_value, H5T_NATIVE_UINT, wbuf, H5T_NATIVE_UINT, sid1);
    CHECK(ret, FAIL, "H5Dfill");

    /* Verify memory buffer the hard way... */
    for(u = 0, tbuf = wbuf; u < SPACE7_DIM1; u++)
        for(v = 0; v < SPACE7_DIM2; v++)
            if(*tbuf != fill_value)
                TestErrPrintf("Error! v=%d, u=%u, *tbuf=%u, fill_value=%u\n", v, u, *tbuf, fill_value);

    /* Set the coordinates of the selection */
    for(u = 0; u < SPACE7_DIM1; u++)
        for(v = 0; v < SPACE7_DIM2; v++) {
            points[(u * SPACE7_DIM2) + v][0] = u;
            points[(u * SPACE7_DIM2) + v][1] = v;
        } /* end for */

    /* Initialize the iterator structure */
    iter_info.fill_value = SPACE7_FILL;
    iter_info.curr_coord = 0;
    iter_info.coords = (hsize_t *)points;

    /* Iterate through selection, verifying correct data */
    ret = H5Diterate(wbuf, H5T_NATIVE_UINT, sid1, test_select_hyper_iter3, &iter_info);
    CHECK(ret, FAIL, "H5Diterate");

    /* Close dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Free memory buffers */
    HDfree(wbuf);
}   /* test_select_fill_all() */

/****************************************************************
**
**  test_select_fill_point(): Test basic H5S (dataspace) selection code.
**      Tests filling "point" selections
**
****************************************************************/
static void
test_select_fill_point(hssize_t *offset)
{
    hid_t	sid1;           /* Dataspace ID */
    hsize_t	dims1[] = {SPACE7_DIM1, SPACE7_DIM2};
    hssize_t    real_offset[SPACE7_RANK];       /* Actual offset to use */
    hsize_t     points[5][SPACE7_RANK] = {{2,4}, {3,8}, {8,4}, {7,5}, {7,7}};
    size_t      num_points = 5; /* Number of points selected */
    int         fill_value;     /* Fill value */
    fill_iter_info iter_info;   /* Iterator information structure */
    unsigned   *wbuf,           /* buffer to write to disk */
               *tbuf;           /* temporary buffer pointer */
    unsigned   u, v, w;        /* Counters */
    herr_t	ret;		/* Generic return value	*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Filling 'point' Selections\n"));

    /* Allocate memory buffer */
    wbuf = (unsigned *)HDmalloc(sizeof(unsigned) * SPACE7_DIM1 * SPACE7_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");

    /* Initialize memory buffer */
    for(u = 0, tbuf = wbuf; u < SPACE7_DIM1; u++)
        for(v = 0; v < SPACE7_DIM2; v++)
            *tbuf++ = (unsigned short)(u * SPACE7_DIM2) + v;

    /* Create dataspace for dataset on disk */
    sid1 = H5Screate_simple(SPACE7_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Select "point" selection */
    ret = H5Sselect_elements(sid1, H5S_SELECT_SET, num_points, (const hsize_t *)points);
    CHECK(ret, FAIL, "H5Sselect_elements");

    if(offset != NULL) {
        HDmemcpy(real_offset, offset, SPACE7_RANK * sizeof(hssize_t));

        /* Set offset, if provided */
        ret = H5Soffset_simple(sid1, real_offset);
        CHECK(ret, FAIL, "H5Soffset_simple");
    } /* end if */
    else
        HDmemset(real_offset, 0, SPACE7_RANK * sizeof(hssize_t));

    /* Set fill value */
    fill_value = SPACE7_FILL;

    /* Fill selection in memory */
    ret = H5Dfill(&fill_value, H5T_NATIVE_INT, wbuf, H5T_NATIVE_UINT, sid1);
    CHECK(ret, FAIL, "H5Dfill");

    /* Verify memory buffer the hard way... */
    for(u = 0, tbuf = wbuf; u < SPACE7_DIM1; u++)
        for(v = 0; v < SPACE7_DIM2; v++, tbuf++) {
            for(w = 0; w < (unsigned)num_points; w++) {
                if(u == (unsigned)(points[w][0] + (hsize_t)real_offset[0]) && v == (unsigned)(points[w][1] + (hsize_t)real_offset[1])) {
                    if(*tbuf != (unsigned)fill_value)
                        TestErrPrintf("Error! v=%u, u=%u, *tbuf=%u, fill_value=%u\n", v, u, *tbuf, (unsigned)fill_value);
                    break;
                } /* end if */
            } /* end for */
            if(w == (unsigned)num_points && *tbuf != ((u * SPACE7_DIM2) + v))
                TestErrPrintf("Error! v=%d, u=%d, *tbuf=%u, should be: %u\n", v, u, *tbuf, ((u * SPACE7_DIM2) + v));
        } /* end for */

    /* Initialize the iterator structure */
    iter_info.fill_value = SPACE7_FILL;
    iter_info.curr_coord = 0;
    iter_info.coords = (hsize_t *)points;

    /* Add in the offset */
    for(u = 0; u < (unsigned)num_points; u++) {
        points[u][0] = (hsize_t)(points[u][0] + real_offset[0]);
        points[u][1] = (hsize_t)(points[u][1] + real_offset[1]);
    } /* end for */

    /* Iterate through selection, verifying correct data */
    ret = H5Diterate(wbuf, H5T_NATIVE_UINT, sid1, test_select_hyper_iter3, &iter_info);
    CHECK(ret, FAIL, "H5Diterate");

    /* Close dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Free memory buffers */
    HDfree(wbuf);
}   /* test_select_fill_point() */

/****************************************************************
**
**  test_select_fill_hyper_simple(): Test basic H5S (dataspace) selection code.
**      Tests filling "simple" (i.e. one block) hyperslab selections
**
****************************************************************/
static void
test_select_fill_hyper_simple(hssize_t *offset)
{
    hid_t	sid1;           /* Dataspace ID */
    hsize_t	dims1[] = {SPACE7_DIM1, SPACE7_DIM2};
    hssize_t    real_offset[SPACE7_RANK];       /* Actual offset to use */
    hsize_t     start[SPACE7_RANK];     /* Hyperslab start */
    hsize_t     count[SPACE7_RANK];     /* Hyperslab block size */
    size_t      num_points;     /* Number of points in selection */
    hsize_t     points[16][SPACE7_RANK];        /* Coordinates selected */
    int         fill_value;     /* Fill value */
    fill_iter_info iter_info;   /* Iterator information structure */
    unsigned   *wbuf,           /* buffer to write to disk */
               *tbuf;           /* temporary buffer pointer */
    unsigned    u, v;           /* Counters */
    herr_t	ret;		/* Generic return value	*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Filling Simple 'hyperslab' Selections\n"));

    /* Allocate memory buffer */
    wbuf = (unsigned *)HDmalloc(sizeof(unsigned) * SPACE7_DIM1 * SPACE7_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");

    /* Initialize memory buffer */
    for(u = 0, tbuf = wbuf; u < SPACE7_DIM1; u++)
        for(v = 0; v < SPACE7_DIM2; v++)
            *tbuf++ = (unsigned short)(u * SPACE7_DIM2) + v;

    /* Create dataspace for dataset on disk */
    sid1 = H5Screate_simple(SPACE7_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Select "hyperslab" selection */
    start[0] = 3; start[1] = 3;
    count[0] = 4; count[1] = 4;
    ret = H5Sselect_hyperslab(sid1, H5S_SELECT_SET, start, NULL, count, NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    if(offset != NULL) {
        HDmemcpy(real_offset, offset, SPACE7_RANK * sizeof(hssize_t));

        /* Set offset, if provided */
        ret = H5Soffset_simple(sid1, real_offset);
        CHECK(ret, FAIL, "H5Soffset_simple");
    } /* end if */
    else
        HDmemset(real_offset, 0, SPACE7_RANK * sizeof(hssize_t));

    /* Set fill value */
    fill_value = SPACE7_FILL;

    /* Fill selection in memory */
    ret = H5Dfill(&fill_value, H5T_NATIVE_INT, wbuf, H5T_NATIVE_UINT, sid1);
    CHECK(ret, FAIL, "H5Dfill");

    /* Verify memory buffer the hard way... */
    for(u = 0, tbuf = wbuf; u < SPACE7_DIM1; u++)
        for(v = 0; v < SPACE7_DIM2; v++, tbuf++) {
            if((u >= (unsigned)(start[0] + real_offset[0]) && u < (unsigned)(start[0] + count[0] + real_offset[0]))
                && (v >= (unsigned)(start[1] + real_offset[1]) && v < (unsigned)(start[1] + count[1] + real_offset[1]))) {
                    if(*tbuf != (unsigned)fill_value)
                        TestErrPrintf("Error! v=%u, u=%u, *tbuf=%u, fill_value=%u\n", v, u, *tbuf, (unsigned)fill_value);
                } /* end if */
            else {
                if(*tbuf != ((unsigned)(u * SPACE7_DIM2) + v))
                    TestErrPrintf("Error! v=%u, u=%u, *tbuf=%u, should be: %u\n", v, u, *tbuf, ((u * SPACE7_DIM2) + v));
            } /* end else */
        } /* end for */

    /* Initialize the iterator structure */
    iter_info.fill_value = SPACE7_FILL;
    iter_info.curr_coord = 0;
    iter_info.coords = (hsize_t *)points;

    /* Set the coordinates of the selection (with the offset) */
    for(u = 0, num_points = 0; u < (unsigned)count[0]; u++)
        for(v = 0; v < (unsigned)count[1]; v++, num_points++) {
            points[num_points][0] = (hsize_t)(u + start[0] + real_offset[0]);
            points[num_points][1] = (hsize_t)(v + start[1] + real_offset[1]);
        } /* end for */

    /* Iterate through selection, verifying correct data */
    ret = H5Diterate(wbuf, H5T_NATIVE_UINT, sid1, test_select_hyper_iter3, &iter_info);
    CHECK(ret, FAIL, "H5Diterate");

    /* Close dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Free memory buffers */
    HDfree(wbuf);
}   /* test_select_fill_hyper_simple() */

/****************************************************************
**
**  test_select_fill_hyper_regular(): Test basic H5S (dataspace) selection code.
**      Tests filling "regular" (i.e. strided block) hyperslab selections
**
****************************************************************/
static void
test_select_fill_hyper_regular(hssize_t *offset)
{
    hid_t	sid1;           /* Dataspace ID */
    hsize_t	dims1[] = {SPACE7_DIM1, SPACE7_DIM2};
    hssize_t    real_offset[SPACE7_RANK];       /* Actual offset to use */
    hsize_t     start[SPACE7_RANK];     /* Hyperslab start */
    hsize_t     stride[SPACE7_RANK];    /* Hyperslab stride size */
    hsize_t     count[SPACE7_RANK];     /* Hyperslab block count */
    hsize_t     block[SPACE7_RANK];     /* Hyperslab block size */
    hsize_t     points[16][SPACE7_RANK] = {
        {2,2}, {2,3}, {2,6}, {2,7},
        {3,2}, {3,3}, {3,6}, {3,7},
        {6,2}, {6,3}, {6,6}, {6,7},
        {7,2}, {7,3}, {7,6}, {7,7},
        };
    size_t      num_points=16;  /* Number of points selected */
    int         fill_value;     /* Fill value */
    fill_iter_info iter_info;   /* Iterator information structure */
    unsigned   *wbuf,           /* buffer to write to disk */
               *tbuf;           /* temporary buffer pointer */
    unsigned    u, v, w;        /* Counters */
    herr_t	ret;		/* Generic return value	*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Filling Regular 'hyperslab' Selections\n"));

    /* Allocate memory buffer */
    wbuf = (unsigned *)HDmalloc(sizeof(unsigned) * SPACE7_DIM1 * SPACE7_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");

    /* Initialize memory buffer */
    for(u = 0, tbuf = wbuf; u < SPACE7_DIM1; u++)
        for(v = 0; v < SPACE7_DIM2; v++)
            *tbuf++ =(u * SPACE7_DIM2) + v;

    /* Create dataspace for dataset on disk */
    sid1 = H5Screate_simple(SPACE7_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Select "hyperslab" selection */
    start[0] = 2; start[1] = 2;
    stride[0] = 4; stride[1] = 4;
    count[0] = 2; count[1] = 2;
    block[0] = 2; block[1] = 2;
    ret = H5Sselect_hyperslab(sid1, H5S_SELECT_SET, start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    if(offset != NULL) {
        HDmemcpy(real_offset, offset, SPACE7_RANK * sizeof(hssize_t));

        /* Set offset, if provided */
        ret = H5Soffset_simple(sid1, real_offset);
        CHECK(ret, FAIL, "H5Soffset_simple");
    } /* end if */
    else
        HDmemset(real_offset, 0, SPACE7_RANK * sizeof(hssize_t));

    /* Set fill value */
    fill_value = SPACE7_FILL;

    /* Fill selection in memory */
    ret = H5Dfill(&fill_value, H5T_NATIVE_INT, wbuf, H5T_NATIVE_UINT, sid1);
    CHECK(ret, FAIL, "H5Dfill");

    /* Verify memory buffer the hard way... */
    for(u = 0, tbuf = wbuf; u < SPACE7_DIM1; u++)
        for(v = 0; v < SPACE7_DIM2; v++, tbuf++) {
            for(w = 0; w < (unsigned)num_points; w++) {
                if(u == (unsigned)(points[w][0] + real_offset[0]) && v == (unsigned)(points[w][1] + real_offset[1])) {
                    if(*tbuf != (unsigned)fill_value)
                        TestErrPrintf("Error! v=%u, u=%u, *tbuf=%u, fill_value=%u\n", v, u, *tbuf, (unsigned)fill_value);
                    break;
                } /* end if */
            } /* end for */
            if(w == (unsigned)num_points && *tbuf != ((u * SPACE7_DIM2) + v))
                TestErrPrintf("Error! v=%d, u=%d, *tbuf=%u, should be: %u\n", v, u, *tbuf, ((u * SPACE7_DIM2) + v));
        } /* end for */

    /* Initialize the iterator structure */
    iter_info.fill_value = SPACE7_FILL;
    iter_info.curr_coord = 0;
    iter_info.coords = (hsize_t *)points;

    /* Add in the offset */
    for(u = 0; u < (unsigned)num_points; u++) {
        points[u][0] = (hsize_t)(points[u][0] + real_offset[0]);
        points[u][1] = (hsize_t)(points[u][1] + real_offset[1]);
    } /* end for */

    /* Iterate through selection, verifying correct data */
    ret = H5Diterate(wbuf, H5T_NATIVE_UINT, sid1, test_select_hyper_iter3, &iter_info);
    CHECK(ret, FAIL, "H5Diterate");

    /* Close dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Free memory buffers */
    HDfree(wbuf);
}   /* test_select_fill_hyper_regular() */

/****************************************************************
**
**  test_select_fill_hyper_irregular(): Test basic H5S (dataspace) selection code.
**      Tests filling "irregular" (i.e. combined blocks) hyperslab selections
**
****************************************************************/
static void
test_select_fill_hyper_irregular(hssize_t *offset)
{
    hid_t	sid1;           /* Dataspace ID */
    hsize_t	dims1[] = {SPACE7_DIM1, SPACE7_DIM2};
    hssize_t    real_offset[SPACE7_RANK];       /* Actual offset to use */
    hsize_t     start[SPACE7_RANK];     /* Hyperslab start */
    hsize_t     count[SPACE7_RANK];     /* Hyperslab block count */
    hsize_t     points[32][SPACE7_RANK] = { /* Yes, some of the are duplicated.. */
        {2,2}, {2,3}, {2,4}, {2,5},
        {3,2}, {3,3}, {3,4}, {3,5},
        {4,2}, {4,3}, {4,4}, {4,5},
        {5,2}, {5,3}, {5,4}, {5,5},
        {4,4}, {4,5}, {4,6}, {4,7},
        {5,4}, {5,5}, {5,6}, {5,7},
        {6,4}, {6,5}, {6,6}, {6,7},
        {7,4}, {7,5}, {7,6}, {7,7},
        };
    hsize_t     iter_points[28][SPACE7_RANK] = { /* Coordinates, as iterated through */
        {2,2}, {2,3}, {2,4}, {2,5},
        {3,2}, {3,3}, {3,4}, {3,5},
        {4,2}, {4,3}, {4,4}, {4,5}, {4,6}, {4,7},
        {5,2}, {5,3}, {5,4}, {5,5}, {5,6}, {5,7},
        {6,4}, {6,5}, {6,6}, {6,7},
        {7,4}, {7,5}, {7,6}, {7,7},
        };
    size_t      num_points = 32;  /* Number of points selected */
    size_t      num_iter_points = 28;  /* Number of resulting points */
    int         fill_value;     /* Fill value */
    fill_iter_info iter_info;   /* Iterator information structure */
    unsigned   *wbuf,           /* buffer to write to disk */
               *tbuf;           /* temporary buffer pointer */
    unsigned    u, v, w;        /* Counters */
    herr_t	ret;		/* Generic return value	*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Filling Irregular 'hyperslab' Selections\n"));

    /* Allocate memory buffer */
    wbuf = (unsigned *)HDmalloc(sizeof(unsigned) * SPACE7_DIM1 * SPACE7_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");

    /* Initialize memory buffer */
    for(u = 0, tbuf = wbuf; u < SPACE7_DIM1; u++)
        for(v = 0; v < SPACE7_DIM2; v++)
            *tbuf++ = (u * SPACE7_DIM2) + v;

    /* Create dataspace for dataset on disk */
    sid1 = H5Screate_simple(SPACE7_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Select first "hyperslab" selection */
    start[0] = 2; start[1] = 2;
    count[0] = 4; count[1] = 4;
    ret = H5Sselect_hyperslab(sid1, H5S_SELECT_SET, start, NULL, count, NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Combine with second "hyperslab" selection */
    start[0] = 4; start[1] = 4;
    count[0] = 4; count[1] = 4;
    ret = H5Sselect_hyperslab(sid1, H5S_SELECT_OR, start, NULL, count, NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    if(offset != NULL) {
        HDmemcpy(real_offset, offset, SPACE7_RANK * sizeof(hssize_t));

        /* Set offset, if provided */
        ret = H5Soffset_simple(sid1, real_offset);
        CHECK(ret, FAIL, "H5Soffset_simple");
    } /* end if */
    else
        HDmemset(real_offset, 0, SPACE7_RANK * sizeof(hssize_t));

    /* Set fill value */
    fill_value = SPACE7_FILL;

    /* Fill selection in memory */
    ret = H5Dfill(&fill_value, H5T_NATIVE_INT, wbuf, H5T_NATIVE_UINT, sid1);
    CHECK(ret, FAIL, "H5Dfill");

    /* Verify memory buffer the hard way... */
    for(u = 0, tbuf = wbuf; u < SPACE7_DIM1; u++)
        for(v = 0; v < SPACE7_DIM2; v++, tbuf++) {
            for(w = 0; w < (unsigned)num_points; w++) {
                if(u == (unsigned)(points[w][0] + real_offset[0]) && v == (unsigned)(points[w][1] + real_offset[1])) {
                    if(*tbuf != (unsigned)fill_value)
                        TestErrPrintf("Error! v=%u, u=%u, *tbuf=%u, fill_value=%u\n", v, u, *tbuf, (unsigned)fill_value);
                    break;
                } /* end if */
            } /* end for */
            if(w == (unsigned)num_points && *tbuf != ((u * SPACE7_DIM2) + v))
                TestErrPrintf("Error! v=%u, u=%u, *tbuf=%u, should be: %u\n", v, u, *tbuf, ((u * SPACE7_DIM2) + v));
        } /* end for */

    /* Initialize the iterator structure */
    iter_info.fill_value = SPACE7_FILL;
    iter_info.curr_coord = 0;
    iter_info.coords = (hsize_t *)iter_points;

    /* Add in the offset */
    for(u = 0; u < (unsigned)num_iter_points; u++) {
        iter_points[u][0] = (hsize_t)(iter_points[u][0] + real_offset[0]);
        iter_points[u][1] = (hsize_t)(iter_points[u][1] + real_offset[1]);
    } /* end for */

    /* Iterate through selection, verifying correct data */
    ret = H5Diterate(wbuf, H5T_NATIVE_UINT, sid1, test_select_hyper_iter3, &iter_info);
    CHECK(ret, FAIL, "H5Diterate");

    /* Close dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Free memory buffers */
    HDfree(wbuf);
}   /* test_select_fill_hyper_irregular() */

/****************************************************************
**
**  test_select_none(): Test basic H5S (dataspace) selection code.
**      Tests I/O on 0-sized point selections
**
****************************************************************/
static void
test_select_none(void)
{
    hid_t	fid1;		/* HDF5 File IDs		*/
    hid_t	dataset;	/* Dataset ID			*/
    hid_t	sid1,sid2;	/* Dataspace ID			*/
    hsize_t	dims1[] = {SPACE7_DIM1, SPACE7_DIM2};
    hsize_t	dims2[] = {SPACE7_DIM1, SPACE7_DIM2};
    uint8_t    *wbuf,           /* buffer to write to disk */
               *rbuf,           /* buffer to read from disk */
               *tbuf;           /* temporary buffer pointer */
    int         i,j;            /* Counters */
    herr_t	ret;		/* Generic return value	*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing I/O on 0-sized Selections\n"));

    /* Allocate write & read buffers */
    wbuf = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE7_DIM1 * SPACE7_DIM2);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (uint8_t *)HDcalloc(sizeof(uint8_t), SPACE7_DIM1 * SPACE7_DIM2);
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize write buffer */
    for(i=0, tbuf=wbuf; i<SPACE7_DIM1; i++)
        for(j=0; j<SPACE7_DIM2; j++)
            *tbuf++=(uint8_t)((i*SPACE7_DIM2)+j);

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE7_RANK, dims1, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE7_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Create a dataset */
    dataset=H5Dcreate2(fid1,"Dataset1",H5T_NATIVE_UCHAR,sid1,H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Make "none" selection in both disk and memory datasets */
    ret = H5Sselect_none(sid1);
    CHECK(ret, FAIL, "H5Sselect_none");

    ret = H5Sselect_none(sid2);
    CHECK(ret, FAIL, "H5Sselect_none");

    /* Attempt to read "nothing" from disk (before space is allocated) */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Write "nothing" to disk */
    ret=H5Dwrite(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Write "nothing" to disk (with a datatype conversion :-) */
    ret=H5Dwrite(dataset,H5T_NATIVE_INT,sid2,sid1,H5P_DEFAULT,wbuf);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Write "nothing" to disk (with NULL buffer argument) */
    ret=H5Dwrite(dataset,H5T_NATIVE_INT,sid2,sid1,H5P_DEFAULT,NULL);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read "nothing" from disk (with NULL buffer argument) */
    ret=H5Dread(dataset,H5T_NATIVE_INT,sid2,sid1,H5P_DEFAULT,NULL);
    CHECK(ret, FAIL, "H5Dread");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_none() */

/****************************************************************
**
**  test_scalar_select(): Test basic H5S (dataspace) selection code.
**      Tests selections on scalar dataspaces
**
****************************************************************/
static void
test_scalar_select(void)
{
    hid_t	fid1;		/* HDF5 File IDs		*/
    hid_t	dataset;	/* Dataset ID			*/
    hid_t	sid1,sid2;	/* Dataspace ID			*/
    hsize_t	dims2[] = {SPACE7_DIM1, SPACE7_DIM2};
    hsize_t	coord1[SPACE7_RANK]; /* Coordinates for point selection */
    hsize_t     start[SPACE7_RANK]; /* Hyperslab start */
    hsize_t     count[SPACE7_RANK]; /* Hyperslab block count */
    uint8_t    *wbuf_uint8,     /* buffer to write to disk */
                rval_uint8,     /* value read back in */
               *tbuf_uint8;     /* temporary buffer pointer */
    unsigned short *wbuf_ushort,/* another buffer to write to disk */
                rval_ushort,    /* value read back in */
               *tbuf_ushort;    /* temporary buffer pointer */
    int         i,j;            /* Counters */
    herr_t	ret;		/* Generic return value	*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing I/O on Selections in Scalar Dataspaces\n"));

    /* Allocate write & read buffers */
    wbuf_uint8 = (uint8_t *)HDmalloc(sizeof(uint8_t) * SPACE7_DIM1 * SPACE7_DIM2);
    CHECK(wbuf_uint8, NULL, "HDmalloc");
    wbuf_ushort = (unsigned short *)HDmalloc(sizeof(unsigned short) * SPACE7_DIM1 * SPACE7_DIM2);
    CHECK(wbuf_ushort, NULL, "HDmalloc");

    /* Initialize write buffers */
    for(i=0, tbuf_uint8=wbuf_uint8, tbuf_ushort=wbuf_ushort; i<SPACE7_DIM1; i++)
        for(j=0; j<SPACE7_DIM2; j++) {
            *tbuf_uint8++=(uint8_t)((i*SPACE7_DIM2)+j);
            *tbuf_ushort++=(unsigned short)((j*SPACE7_DIM2)+i);
        } /* end for */

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate(H5S_SCALAR);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate_simple(SPACE7_RANK, dims2, NULL);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Create a dataset */
    dataset=H5Dcreate2(fid1,"Dataset1",H5T_NATIVE_UCHAR,sid1,H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Select one element in memory with a point selection */
    coord1[0]=0; coord1[1]= 2;
    ret = H5Sselect_elements(sid2, H5S_SELECT_SET, (size_t)1, (const hsize_t *)&coord1);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Write single point to disk */
    ret=H5Dwrite(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,wbuf_uint8);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read scalar element from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid1,sid1,H5P_DEFAULT,&rval_uint8);
    CHECK(ret, FAIL, "H5Dread");

    /* Check value read back in */
    if(rval_uint8!=*(wbuf_uint8+2))
        TestErrPrintf("Error! rval=%u, should be: *(wbuf+2)=%u\n",(unsigned)rval_uint8,(unsigned)*(wbuf_uint8+2));

    /* Write single point to disk (with a datatype conversion) */
    ret=H5Dwrite(dataset,H5T_NATIVE_USHORT,sid2,sid1,H5P_DEFAULT,wbuf_ushort);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read scalar element from disk */
    ret=H5Dread(dataset,H5T_NATIVE_USHORT,sid1,sid1,H5P_DEFAULT,&rval_ushort);
    CHECK(ret, FAIL, "H5Dread");

    /* Check value read back in */
    if(rval_ushort!=*(wbuf_ushort+2))
        TestErrPrintf("Error! rval=%u, should be: *(wbuf+2)=%u\n",(unsigned)rval_ushort,(unsigned)*(wbuf_ushort+2));

    /* Select one element in memory with a hyperslab selection */
    start[0]=4; start[1]=3;
    count[0]=1; count[1]=1;
    ret = H5Sselect_hyperslab(sid2,H5S_SELECT_SET,start,NULL,count,NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Write single hyperslab element to disk */
    ret=H5Dwrite(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,wbuf_uint8);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read scalar element from disk */
    ret=H5Dread(dataset,H5T_NATIVE_UCHAR,sid1,sid1,H5P_DEFAULT,&rval_uint8);
    CHECK(ret, FAIL, "H5Dread");

    /* Check value read back in */
    if(rval_uint8!=*(wbuf_uint8+(SPACE7_DIM2*4)+3))
        TestErrPrintf("Error! rval=%u, should be: *(wbuf+(SPACE7_DIM2*4)+3)=%u\n",(unsigned)rval_uint8,(unsigned)*(wbuf_uint8+(SPACE7_DIM2*4)+3));

    /* Write single hyperslab element to disk (with a datatype conversion) */
    ret=H5Dwrite(dataset,H5T_NATIVE_USHORT,sid2,sid1,H5P_DEFAULT,wbuf_ushort);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read scalar element from disk */
    ret=H5Dread(dataset,H5T_NATIVE_USHORT,sid1,sid1,H5P_DEFAULT,&rval_ushort);
    CHECK(ret, FAIL, "H5Dread");

    /* Check value read back in */
    if(rval_ushort!=*(wbuf_ushort+(SPACE7_DIM2*4)+3))
        TestErrPrintf("Error! rval=%u, should be: *(wbuf+(SPACE7_DIM2*4)+3)=%u\n",(unsigned)rval_ushort,(unsigned)*(wbuf_ushort+(SPACE7_DIM2*4)+3));

    /* Select no elements in memory & file with "none" selections */
    ret = H5Sselect_none(sid1);
    CHECK(ret, FAIL, "H5Sselect_none");

    ret = H5Sselect_none(sid2);
    CHECK(ret, FAIL, "H5Sselect_none");

    /* Write no data to disk */
    ret=H5Dwrite(dataset,H5T_NATIVE_UCHAR,sid2,sid1,H5P_DEFAULT,wbuf_uint8);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Write no data to disk (with a datatype conversion) */
    ret=H5Dwrite(dataset,H5T_NATIVE_USHORT,sid2,sid1,H5P_DEFAULT,wbuf_ushort);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free memory buffers */
    HDfree(wbuf_uint8);
    HDfree(wbuf_ushort);
}   /* test_scalar_select() */

/****************************************************************
**
**  test_scalar_select2(): Tests selections on scalar dataspace,
**	verify H5Sselect_hyperslab and H5Sselect_elements fails for
**	scalar dataspace.
**
****************************************************************/
static void
test_scalar_select2(void)
{
    hid_t	sid;		/* Dataspace ID			*/
    hsize_t	coord1[1]; /* Coordinates for point selection */
    hsize_t     start[1]; /* Hyperslab start */
    hsize_t     count[1]; /* Hyperslab block count */
    herr_t	ret;		/* Generic return value	*/

    /* Output message about test being performed */
    MESSAGE(6, ("Testing Selections in Scalar Dataspaces\n"));

    /* Create dataspace for dataset */
    sid = H5Screate(H5S_SCALAR);
    CHECK(sid, FAIL, "H5Screate_simple");

    /* Select one element in memory with a point selection */
    coord1[0]=0;
    H5E_BEGIN_TRY {
    	ret = H5Sselect_elements(sid, H5S_SELECT_SET, (size_t)1, (const hsize_t *)&coord1);
    } H5E_END_TRY;
    VERIFY(ret, FAIL, "H5Sselect_elements");

    /* Select one element in memory with a hyperslab selection */
    start[0]=0;
    count[0]=0;
    H5E_BEGIN_TRY {
    	ret = H5Sselect_hyperslab(sid,H5S_SELECT_SET,start,NULL,count,NULL);
    } H5E_END_TRY;
    VERIFY(ret, FAIL, "H5Sselect_hyperslab");

    /* Select no elements in memory & file with "none" selection */
    ret = H5Sselect_none(sid);
    CHECK(ret, FAIL, "H5Sselect_none");

    /* Select all elements in memory & file with "all" selection */
    ret = H5Sselect_all(sid);
    CHECK(ret, FAIL, "H5Sselect_none");

    /* Close disk dataspace */
    ret = H5Sclose(sid);
    CHECK(ret, FAIL, "H5Sclose");
}   /* test_scalar_select2() */

/****************************************************************
**
**  test_scalar_select3(): Test basic H5S (dataspace) selection code.
**      Tests selections on scalar dataspaces in memory
**
****************************************************************/
static void
test_scalar_select3(void)
{
    hid_t	fid1;		/* HDF5 File IDs		*/
    hid_t	dataset;	/* Dataset ID			*/
    hid_t	sid1,sid2;	/* Dataspace ID			*/
    hsize_t	dims2[] = {SPACE7_DIM1, SPACE7_DIM2};
    hsize_t	coord1[SPACE7_RANK]; /* Coordinates for point selection */
    hsize_t     start[SPACE7_RANK]; /* Hyperslab start */
    hsize_t     count[SPACE7_RANK]; /* Hyperslab block count */
    uint8_t     wval_uint8,     /* Value written out */
                rval_uint8;     /* Value read in */
    unsigned short wval_ushort, /* Another value written out */
                rval_ushort;    /* Another value read in */
    herr_t	ret;		/* Generic return value	*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing I/O on Selections in Scalar Dataspaces in Memory\n"));

    /* Create file */
    fid1 = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid1, FAIL, "H5Fcreate");

    /* Create dataspace for dataset */
    sid1 = H5Screate_simple(SPACE7_RANK, dims2, NULL);
    CHECK(sid1, FAIL, "H5Screate_simple");

    /* Create dataspace for writing buffer */
    sid2 = H5Screate(H5S_SCALAR);
    CHECK(sid2, FAIL, "H5Screate_simple");

    /* Create a dataset */
    dataset = H5Dcreate2(fid1, "Dataset1", H5T_NATIVE_UCHAR, sid1, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Select one element in file with a point selection */
    coord1[0] = 0; coord1[1] = 2;
    ret = H5Sselect_elements(sid1, H5S_SELECT_SET, (size_t)1, (const hsize_t *)&coord1);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Write single point to disk */
    wval_uint8 = 12;
    ret = H5Dwrite(dataset, H5T_NATIVE_UCHAR, sid2, sid1, H5P_DEFAULT, &wval_uint8);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read scalar element from disk */
    rval_uint8 = 0;
    ret = H5Dread(dataset, H5T_NATIVE_UCHAR, sid2, sid1, H5P_DEFAULT, &rval_uint8);
    CHECK(ret, FAIL, "H5Dread");

    /* Check value read back in */
    if(rval_uint8 != wval_uint8)
        TestErrPrintf("%u: Error! rval=%u, should be: wval=%u\n", (unsigned)__LINE__, (unsigned)rval_uint8, (unsigned)wval_uint8);

    /* Write single point to disk (with a datatype conversion) */
    wval_ushort = 23;
    ret = H5Dwrite(dataset, H5T_NATIVE_USHORT, sid2, sid1, H5P_DEFAULT, &wval_ushort);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read scalar element from disk */
    rval_ushort = 0;
    ret = H5Dread(dataset, H5T_NATIVE_USHORT, sid2, sid1, H5P_DEFAULT, &rval_ushort);
    CHECK(ret, FAIL, "H5Dread");

    /* Check value read back in */
    if(rval_ushort != wval_ushort)
        TestErrPrintf("%u: Error! rval=%u, should be: wval=%u\n", (unsigned)__LINE__, (unsigned)rval_ushort, (unsigned)wval_ushort);

    /* Select one element in file with a hyperslab selection */
    start[0] = 4; start[1] = 3;
    count[0] = 1; count[1] = 1;
    ret = H5Sselect_hyperslab(sid1, H5S_SELECT_SET, start, NULL, count, NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Write single hyperslab element to disk */
    wval_uint8 = 92;
    ret = H5Dwrite(dataset, H5T_NATIVE_UCHAR, sid2, sid1, H5P_DEFAULT, &wval_uint8);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read scalar element from disk */
    rval_uint8 = 0;
    ret = H5Dread(dataset, H5T_NATIVE_UCHAR, sid2, sid1, H5P_DEFAULT, &rval_uint8);
    CHECK(ret, FAIL, "H5Dread");

    /* Check value read back in */
    if(rval_uint8 != wval_uint8)
        TestErrPrintf("%u: Error! rval=%u, should be: wval=%u\n", (unsigned)__LINE__, (unsigned)rval_uint8, (unsigned)wval_uint8);

    /* Write single hyperslab element to disk (with a datatype conversion) */
    wval_ushort = 107;
    ret = H5Dwrite(dataset, H5T_NATIVE_USHORT, sid2, sid1, H5P_DEFAULT, &wval_ushort);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Read scalar element from disk */
    rval_ushort = 0;
    ret = H5Dread(dataset, H5T_NATIVE_USHORT, sid2, sid1, H5P_DEFAULT, &rval_ushort);
    CHECK(ret, FAIL, "H5Dread");

    /* Check value read back in */
    if(rval_ushort != wval_ushort)
        TestErrPrintf("%u: Error! rval=%u, should be: wval=%u\n", (unsigned)__LINE__, (unsigned)rval_ushort, (unsigned)wval_ushort);

    /* Select no elements in memory & file with "none" selections */
    ret = H5Sselect_none(sid1);
    CHECK(ret, FAIL, "H5Sselect_none");

    ret = H5Sselect_none(sid2);
    CHECK(ret, FAIL, "H5Sselect_none");

    /* Write no data to disk */
    ret = H5Dwrite(dataset, H5T_NATIVE_UCHAR, sid2, sid1, H5P_DEFAULT, &wval_uint8);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Write no data to disk (with a datatype conversion) */
    ret = H5Dwrite(dataset, H5T_NATIVE_USHORT, sid2, sid1, H5P_DEFAULT, &wval_ushort);
    CHECK(ret, FAIL, "H5Dwrite");

    /* Close memory dataspace */
    ret = H5Sclose(sid2);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close disk dataspace */
    ret = H5Sclose(sid1);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close Dataset */
    ret = H5Dclose(dataset);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close file */
    ret = H5Fclose(fid1);
    CHECK(ret, FAIL, "H5Fclose");
}   /* test_scalar_select3() */

/****************************************************************
**
**  test_shape_same(): Tests selections on dataspace, verify that
**	"shape same" routine is working correctly.
**
****************************************************************/
static void
test_shape_same(void)
{
    hid_t	all_sid;	/* Dataspace ID	with "all" selection */
    hid_t	none_sid;	/* Dataspace ID	with "none" selection */
    hid_t	single_pt_sid;	/* Dataspace ID	with single point selection */
    hid_t	mult_pt_sid;	/* Dataspace ID	with multiple point selection */
    hid_t	single_hyper_sid;	/* Dataspace ID	with single block hyperslab selection */
    hid_t	single_hyper_all_sid;	/* Dataspace ID	with single block hyperslab
                                         * selection that is the entire dataspace
                                         */
    hid_t	single_hyper_pt_sid;	/* Dataspace ID	with single block hyperslab
                                         * selection that is the same as the single
                                         * point selection
                                         */
    hid_t	regular_hyper_sid;	/* Dataspace ID	with regular hyperslab selection */
    hid_t	irreg_hyper_sid;	/* Dataspace ID	with irregular hyperslab selection */
    hid_t	none_hyper_sid;	/* Dataspace ID	with "no hyperslabs" selection */
    hid_t	scalar_all_sid;	/* ID for scalar dataspace with "all" selection */
    hid_t	scalar_none_sid;	/* ID for scalar dataspace with "none" selection */
    hid_t	tmp_sid;	/* Temporary dataspace ID */
    hsize_t	dims[] = {SPACE9_DIM1, SPACE9_DIM2};
    hsize_t	coord1[1][SPACE2_RANK]; /* Coordinates for single point selection */
    hsize_t	coord2[SPACE9_DIM2][SPACE9_RANK]; /* Coordinates for multiple point selection */
    hsize_t     start[SPACE9_RANK]; /* Hyperslab start */
    hsize_t     stride[SPACE9_RANK]; /* Hyperslab stride */
    hsize_t     count[SPACE9_RANK]; /* Hyperslab block count */
    hsize_t     block[SPACE9_RANK]; /* Hyperslab block size */
    unsigned    u,v;            /* Local index variables */
    htri_t	check;		/* Shape comparison return value */
    herr_t	ret;		/* Generic return value	*/

    /* Output message about test being performed */
    MESSAGE(6, ("Testing Same Shape Comparisons\n"));
    assert(SPACE9_DIM2>=POINT1_NPOINTS);

    /* Create dataspace for "all" selection */
    all_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
    CHECK(all_sid, FAIL, "H5Screate_simple");

    /* Select entire extent for dataspace */
    ret = H5Sselect_all(all_sid);
    CHECK(ret, FAIL, "H5Sselect_all");

    /* Create dataspace for "none" selection */
    none_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
    CHECK(none_sid, FAIL, "H5Screate_simple");

    /* Un-Select entire extent for dataspace */
    ret = H5Sselect_none(none_sid);
    CHECK(ret, FAIL, "H5Sselect_none");

    /* Create dataspace for single point selection */
    single_pt_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
    CHECK(single_pt_sid, FAIL, "H5Screate_simple");

    /* Select sequence of ten points for multiple point selection */
    coord1[0][0] = 2; coord1[0][1] = 2;
    ret = H5Sselect_elements(single_pt_sid, H5S_SELECT_SET, (size_t)1, (const hsize_t *)coord1);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Create dataspace for multiple point selection */
    mult_pt_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
    CHECK(mult_pt_sid, FAIL, "H5Screate_simple");

    /* Select sequence of ten points for multiple point selection */
    coord2[0][0]=2; coord2[0][1]=2;
    coord2[1][0]=7; coord2[1][1]=2;
    coord2[2][0]=1; coord2[2][1]=4;
    coord2[3][0]=2; coord2[3][1]=6;
    coord2[4][0]=0; coord2[4][1]=8;
    coord2[5][0]=3; coord2[5][1]=2;
    coord2[6][0]=4; coord2[6][1]=4;
    coord2[7][0]=1; coord2[7][1]=0;
    coord2[8][0]=5; coord2[8][1]=1;
    coord2[9][0]=9; coord2[9][1]=3;
    ret = H5Sselect_elements(mult_pt_sid, H5S_SELECT_SET, (size_t)POINT1_NPOINTS, (const hsize_t *)coord2);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Create dataspace for single hyperslab selection */
    single_hyper_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
    CHECK(single_hyper_sid, FAIL, "H5Screate_simple");

    /* Select 10x10 hyperslab for single hyperslab selection  */
    start[0]=1; start[1]=1;
    stride[0]=1; stride[1]=1;
    count[0]=1; count[1]=1;
    block[0]=(SPACE9_DIM1-2); block[1]=(SPACE9_DIM2-2);
    ret = H5Sselect_hyperslab(single_hyper_sid,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create dataspace for single hyperslab selection with entire extent selected */
    single_hyper_all_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
    CHECK(single_hyper_all_sid, FAIL, "H5Screate_simple");

    /* Select entire extent for hyperslab selection */
    start[0]=0; start[1]=0;
    stride[0]=1; stride[1]=1;
    count[0]=1; count[1]=1;
    block[0]=SPACE9_DIM1; block[1]=SPACE9_DIM2;
    ret = H5Sselect_hyperslab(single_hyper_all_sid,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create dataspace for single hyperslab selection with single point selected */
    single_hyper_pt_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
    CHECK(single_hyper_pt_sid, FAIL, "H5Screate_simple");

    /* Select entire extent for hyperslab selection */
    start[0]=2; start[1]=2;
    stride[0]=1; stride[1]=1;
    count[0]=1; count[1]=1;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(single_hyper_pt_sid,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create dataspace for regular hyperslab selection */
    regular_hyper_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
    CHECK(regular_hyper_sid, FAIL, "H5Screate_simple");

    /* Select regular, strided hyperslab selection */
    start[0]=2; start[1]=2;
    stride[0]=2; stride[1]=2;
    count[0]=5; count[1]=2;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(regular_hyper_sid,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create dataspace for irregular hyperslab selection */
    irreg_hyper_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
    CHECK(irreg_hyper_sid, FAIL, "H5Screate_simple");

    /* Create irregular hyperslab selection by OR'ing two blocks together */
    start[0]=2; start[1]=2;
    stride[0]=1; stride[1]=1;
    count[0]=1; count[1]=1;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(irreg_hyper_sid,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0]=4; start[1]=4;
    stride[0]=1; stride[1]=1;
    count[0]=1; count[1]=1;
    block[0]=3; block[1]=3;
    ret = H5Sselect_hyperslab(irreg_hyper_sid,H5S_SELECT_OR,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create dataspace for "no" hyperslab selection */
    none_hyper_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
    CHECK(none_hyper_sid, FAIL, "H5Screate_simple");

    /* Create "no" hyperslab selection by XOR'ing same blocks together */
    start[0]=2; start[1]=2;
    stride[0]=1; stride[1]=1;
    count[0]=1; count[1]=1;
    block[0]=1; block[1]=1;
    ret = H5Sselect_hyperslab(none_hyper_sid,H5S_SELECT_SET,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    ret = H5Sselect_hyperslab(none_hyper_sid,H5S_SELECT_XOR,start,stride,count,block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create scalar dataspace for "all" selection */
    scalar_all_sid = H5Screate(H5S_SCALAR);
    CHECK(scalar_all_sid, FAIL, "H5Screate");

    /* Create scalar dataspace for "none" selection */
    scalar_none_sid = H5Screate(H5S_SCALAR);
    CHECK(scalar_none_sid, FAIL, "H5Screate");

    /* Un-Select entire extent for dataspace */
    ret = H5Sselect_none(scalar_none_sid);
    CHECK(ret, FAIL, "H5Sselect_none");

    /* Compare "all" selection to all the selections created */
        /* Compare against itself */
        check=H5S_select_shape_same_test(all_sid,all_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against copy of itself */
        tmp_sid=H5Scopy(all_sid);
        CHECK(tmp_sid, FAIL, "H5Scopy");

        check=H5S_select_shape_same_test(all_sid,tmp_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        ret = H5Sclose(tmp_sid);
        CHECK(ret, FAIL, "H5Sclose");

        /* Compare against "none" selection */
        check=H5S_select_shape_same_test(all_sid,none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against single point selection */
        check=H5S_select_shape_same_test(all_sid,single_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against multiple point selection */
        check=H5S_select_shape_same_test(all_sid,mult_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "plain" single hyperslab selection */
        check=H5S_select_shape_same_test(all_sid,single_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "all" single hyperslab selection */
        check=H5S_select_shape_same_test(all_sid,single_hyper_all_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against "single point" single hyperslab selection */
        check=H5S_select_shape_same_test(all_sid,single_hyper_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against regular, strided hyperslab selection */
        check=H5S_select_shape_same_test(all_sid,regular_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against irregular hyperslab selection */
        check=H5S_select_shape_same_test(all_sid,irreg_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "no" hyperslab selection */
        check=H5S_select_shape_same_test(all_sid,none_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against scalar "all" hyperslab selection */
        check = H5S_select_shape_same_test(all_sid, scalar_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against scalar "none" hyperslab selection */
        check = H5S_select_shape_same_test(all_sid, scalar_none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

    /* Compare "none" selection to all the selections created */
        /* Compare against itself */
        check=H5S_select_shape_same_test(none_sid,none_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against copy of itself */
        tmp_sid=H5Scopy(none_sid);
        CHECK(tmp_sid, FAIL, "H5Scopy");

        check=H5S_select_shape_same_test(none_sid,tmp_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        ret = H5Sclose(tmp_sid);
        CHECK(ret, FAIL, "H5Sclose");

        /* Compare against "all" selection */
        check=H5S_select_shape_same_test(none_sid,all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against single point selection */
        check=H5S_select_shape_same_test(none_sid,single_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against multiple point selection */
        check=H5S_select_shape_same_test(none_sid,mult_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "plain" single hyperslab selection */
        check=H5S_select_shape_same_test(none_sid,single_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "all" single hyperslab selection */
        check=H5S_select_shape_same_test(none_sid,single_hyper_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "single point" single hyperslab selection */
        check=H5S_select_shape_same_test(none_sid,single_hyper_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against regular, strided hyperslab selection */
        check=H5S_select_shape_same_test(none_sid,regular_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against irregular hyperslab selection */
        check=H5S_select_shape_same_test(none_sid,irreg_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "no" hyperslab selection */
        check=H5S_select_shape_same_test(none_sid,none_hyper_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against scalar "all" hyperslab selection */
        check = H5S_select_shape_same_test(none_sid, scalar_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against scalar "none" hyperslab selection */
        check = H5S_select_shape_same_test(none_sid, scalar_none_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

    /* Compare single point selection to all the selections created */
        /* Compare against itself */
        check=H5S_select_shape_same_test(single_pt_sid,single_pt_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against copy of itself */
        tmp_sid=H5Scopy(single_pt_sid);
        CHECK(tmp_sid, FAIL, "H5Scopy");

        check=H5S_select_shape_same_test(single_pt_sid,tmp_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        ret = H5Sclose(tmp_sid);
        CHECK(ret, FAIL, "H5Sclose");

        /* Compare against "all" selection */
        check=H5S_select_shape_same_test(single_pt_sid,all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "none" selection */
        check=H5S_select_shape_same_test(single_pt_sid,none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against multiple point selection */
        check=H5S_select_shape_same_test(single_pt_sid,mult_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "plain" single hyperslab selection */
        check=H5S_select_shape_same_test(single_pt_sid,single_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "all" single hyperslab selection */
        check=H5S_select_shape_same_test(single_pt_sid,single_hyper_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "single point" single hyperslab selection */
        check=H5S_select_shape_same_test(single_pt_sid,single_hyper_pt_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against regular, strided hyperslab selection */
        check=H5S_select_shape_same_test(single_pt_sid,regular_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against irregular hyperslab selection */
        check=H5S_select_shape_same_test(single_pt_sid,irreg_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "no" hyperslab selection */
        check=H5S_select_shape_same_test(single_pt_sid,none_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against scalar "all" hyperslab selection */
        check = H5S_select_shape_same_test(single_pt_sid, scalar_all_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against scalar "none" hyperslab selection */
        check = H5S_select_shape_same_test(single_pt_sid, scalar_none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

    /* Compare multiple point selection to all the selections created */
        /* Compare against itself */
        check=H5S_select_shape_same_test(mult_pt_sid,mult_pt_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against copy of itself */
        tmp_sid=H5Scopy(mult_pt_sid);
        CHECK(tmp_sid, FAIL, "H5Scopy");

        check=H5S_select_shape_same_test(mult_pt_sid,tmp_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        ret = H5Sclose(tmp_sid);
        CHECK(ret, FAIL, "H5Sclose");

        /* Compare against "all" selection */
        check=H5S_select_shape_same_test(mult_pt_sid,all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "none" selection */
        check=H5S_select_shape_same_test(mult_pt_sid,none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against single point selection */
        check=H5S_select_shape_same_test(mult_pt_sid,single_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "plain" single hyperslab selection */
        check=H5S_select_shape_same_test(mult_pt_sid,single_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "all" single hyperslab selection */
        check=H5S_select_shape_same_test(mult_pt_sid,single_hyper_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "single point" single hyperslab selection */
        check=H5S_select_shape_same_test(mult_pt_sid,single_hyper_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against regular, strided hyperslab selection */
        check=H5S_select_shape_same_test(mult_pt_sid,regular_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against irregular hyperslab selection */
        check=H5S_select_shape_same_test(mult_pt_sid,irreg_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "no" hyperslab selection */
        check=H5S_select_shape_same_test(mult_pt_sid,none_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against scalar "all" hyperslab selection */
        check = H5S_select_shape_same_test(mult_pt_sid, scalar_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against scalar "none" hyperslab selection */
        check = H5S_select_shape_same_test(mult_pt_sid, scalar_none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

    /* Compare single "normal" hyperslab selection to all the selections created */
        /* Compare against itself */
        check=H5S_select_shape_same_test(single_hyper_sid,single_hyper_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against copy of itself */
        tmp_sid=H5Scopy(single_hyper_sid);
        CHECK(tmp_sid, FAIL, "H5Scopy");

        check=H5S_select_shape_same_test(single_hyper_sid,tmp_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        ret = H5Sclose(tmp_sid);
        CHECK(ret, FAIL, "H5Sclose");

        /* Compare against "all" selection */
        check=H5S_select_shape_same_test(single_hyper_sid,all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "none" selection */
        check=H5S_select_shape_same_test(single_hyper_sid,none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against single point selection */
        check=H5S_select_shape_same_test(single_hyper_sid,single_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against multiple point selection */
        check=H5S_select_shape_same_test(single_hyper_sid,mult_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "all" single hyperslab selection */
        check=H5S_select_shape_same_test(single_hyper_sid,single_hyper_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "single point" single hyperslab selection */
        check=H5S_select_shape_same_test(single_hyper_sid,single_hyper_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against regular, strided hyperslab selection */
        check=H5S_select_shape_same_test(single_hyper_sid,regular_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against irregular hyperslab selection */
        check=H5S_select_shape_same_test(single_hyper_sid,irreg_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "no" hyperslab selection */
        check=H5S_select_shape_same_test(single_hyper_sid,none_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

#ifdef NOT_YET
/* In theory, these two selections are the same shape, but the
 * H5S_select_shape_same() routine is just not this sophisticated yet and it
 * would take too much effort to make this work.  The worst case is that the
 * non-optimized chunk mapping routines will be invoked instead of the more
 * optimized routines, so this only hurts performance, not correctness
 */
        /* Construct point selection which matches "plain" hyperslab selection */
            /* Create dataspace for point selection */
            tmp_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
            CHECK(tmp_sid, FAIL, "H5Screate_simple");

            /* Select sequence of points for point selection */
            for(u=1; u<(SPACE9_DIM1-1); u++) {
                for(v=1; v<(SPACE9_DIM2-1); v++) {
                    coord2[v-1][0]=u; coord2[v-1][1]=v;
                } /* end for */
                ret = H5Sselect_elements(tmp_sid,H5S_SELECT_APPEND,(SPACE9_DIM2-2),coord2);
                CHECK(ret, FAIL, "H5Sselect_elements");
            } /* end for */

            /* Compare against hyperslab selection */
            check=H5S_select_shape_same_test(single_hyper_sid,tmp_sid);
            VERIFY(check, TRUE, "H5S_select_shape_same_test");

            ret = H5Sclose(tmp_sid);
            CHECK(ret, FAIL, "H5Sclose");
#endif /* NOT_YET */

        /* Construct hyperslab selection which matches "plain" hyperslab selection */
            /* Create dataspace for hyperslab selection */
            tmp_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
            CHECK(tmp_sid, FAIL, "H5Screate_simple");

            /* Un-select entire extent */
            ret = H5Sselect_none(tmp_sid);
            CHECK(ret, FAIL, "H5Sselect_none");

            /* Select sequence of rows for hyperslab selection */
            for(u=1; u<(SPACE9_DIM1-1); u++) {
                start[0]=u; start[1]=1;
                stride[0]=1; stride[1]=1;
                count[0]=1; count[1]=1;
                block[0]=1; block[1]=(SPACE9_DIM2-2);
                ret = H5Sselect_hyperslab(tmp_sid,H5S_SELECT_OR,start,stride,count,block);
                CHECK(ret, FAIL, "H5Sselect_hyperslab");
            } /* end for */

            /* Compare against hyperslab selection */
            check=H5S_select_shape_same_test(single_hyper_sid,tmp_sid);
            VERIFY(check, TRUE, "H5S_select_shape_same_test");

            ret = H5Sclose(tmp_sid);
            CHECK(ret, FAIL, "H5Sclose");

        /* Compare against scalar "all" hyperslab selection */
        check = H5S_select_shape_same_test(single_hyper_sid, scalar_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against scalar "none" hyperslab selection */
        check = H5S_select_shape_same_test(single_hyper_sid, scalar_none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

    /* Compare single "all" hyperslab selection to all the selections created */
        /* Compare against itself */
        check=H5S_select_shape_same_test(single_hyper_all_sid,single_hyper_all_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against copy of itself */
        tmp_sid=H5Scopy(single_hyper_all_sid);
        CHECK(tmp_sid, FAIL, "H5Scopy");

        check=H5S_select_shape_same_test(single_hyper_all_sid,tmp_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        ret = H5Sclose(tmp_sid);
        CHECK(ret, FAIL, "H5Sclose");

        /* Compare against "all" selection */
        check=H5S_select_shape_same_test(single_hyper_all_sid,all_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against "none" selection */
        check=H5S_select_shape_same_test(single_hyper_all_sid,none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against single point selection */
        check=H5S_select_shape_same_test(single_hyper_all_sid,single_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against multiple point selection */
        check=H5S_select_shape_same_test(single_hyper_all_sid,mult_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "plain" single hyperslab selection */
        check=H5S_select_shape_same_test(single_hyper_all_sid,single_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "single point" single hyperslab selection */
        check=H5S_select_shape_same_test(single_hyper_all_sid,single_hyper_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against regular, strided hyperslab selection */
        check=H5S_select_shape_same_test(single_hyper_all_sid,regular_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against irregular hyperslab selection */
        check=H5S_select_shape_same_test(single_hyper_all_sid,irreg_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "no" hyperslab selection */
        check=H5S_select_shape_same_test(single_hyper_all_sid,none_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

#ifdef NOT_YET
/* In theory, these two selections are the same shape, but the
 * H5S_select_shape_same() routine is just not this sophisticated yet and it
 * would take too much effort to make this work.  The worst case is that the
 * non-optimized chunk mapping routines will be invoked instead of the more
 * optimized routines, so this only hurts performance, not correctness
 */
        /* Construct point selection which matches "all" hyperslab selection */
            /* Create dataspace for point selection */
            tmp_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
            CHECK(tmp_sid, FAIL, "H5Screate_simple");

            /* Select sequence of points for point selection */
            for(u=0; u<SPACE9_DIM1; u++) {
                for(v=0; v<SPACE9_DIM2; v++) {
                    coord2[v][0]=u; coord2[v][1]=v;
                } /* end for */
                ret = H5Sselect_elements(tmp_sid,H5S_SELECT_APPEND,SPACE9_DIM2,coord2);
                CHECK(ret, FAIL, "H5Sselect_elements");
            } /* end for */

            /* Compare against hyperslab selection */
            check=H5S_select_shape_same_test(single_hyper_all_sid,tmp_sid);
            VERIFY(check, TRUE, "H5S_select_shape_same_test");

            ret = H5Sclose(tmp_sid);
            CHECK(ret, FAIL, "H5Sclose");
#endif /* NOT_YET */

        /* Construct hyperslab selection which matches "all" hyperslab selection */
            /* Create dataspace for hyperslab selection */
            tmp_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
            CHECK(tmp_sid, FAIL, "H5Screate_simple");

            /* Un-select entire extent */
            ret = H5Sselect_none(tmp_sid);
            CHECK(ret, FAIL, "H5Sselect_none");

            /* Select sequence of rows for hyperslab selection */
            for(u=0; u<SPACE9_DIM2; u++) {
                start[0]=u; start[1]=0;
                stride[0]=1; stride[1]=1;
                count[0]=1; count[1]=1;
                block[0]=1; block[1]=SPACE9_DIM2;
                ret = H5Sselect_hyperslab(tmp_sid,H5S_SELECT_OR,start,stride,count,block);
                CHECK(ret, FAIL, "H5Sselect_hyperslab");
            } /* end for */

            /* Compare against hyperslab selection */
            check=H5S_select_shape_same_test(single_hyper_all_sid,tmp_sid);
            VERIFY(check, TRUE, "H5S_select_shape_same_test");

            ret = H5Sclose(tmp_sid);
            CHECK(ret, FAIL, "H5Sclose");

        /* Compare against scalar "all" hyperslab selection */
        check = H5S_select_shape_same_test(single_hyper_all_sid, scalar_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against scalar "none" hyperslab selection */
        check = H5S_select_shape_same_test(single_hyper_all_sid, scalar_none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

    /* Compare single "point" hyperslab selection to all the selections created */
        /* Compare against itself */
        check=H5S_select_shape_same_test(single_hyper_pt_sid,single_hyper_pt_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against copy of itself */
        tmp_sid=H5Scopy(single_hyper_pt_sid);
        CHECK(tmp_sid, FAIL, "H5Scopy");

        check=H5S_select_shape_same_test(single_hyper_pt_sid,tmp_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        ret = H5Sclose(tmp_sid);
        CHECK(ret, FAIL, "H5Sclose");

        /* Compare against "all" selection */
        check=H5S_select_shape_same_test(single_hyper_pt_sid,all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "none" selection */
        check=H5S_select_shape_same_test(single_hyper_pt_sid,none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against single point selection */
        check=H5S_select_shape_same_test(single_hyper_pt_sid,single_pt_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against multiple point selection */
        check=H5S_select_shape_same_test(single_hyper_pt_sid,mult_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "plain" single hyperslab selection */
        check=H5S_select_shape_same_test(single_hyper_pt_sid,single_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "all" single hyperslab selection */
        check=H5S_select_shape_same_test(single_hyper_pt_sid,single_hyper_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against regular, strided hyperslab selection */
        check=H5S_select_shape_same_test(single_hyper_pt_sid,regular_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against irregular hyperslab selection */
        check=H5S_select_shape_same_test(single_hyper_pt_sid,irreg_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "no" hyperslab selection */
        check=H5S_select_shape_same_test(single_hyper_pt_sid,none_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against scalar "all" hyperslab selection */
        check = H5S_select_shape_same_test(single_hyper_pt_sid, scalar_all_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against scalar "none" hyperslab selection */
        check = H5S_select_shape_same_test(single_hyper_pt_sid, scalar_none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

    /* Compare regular, strided hyperslab selection to all the selections created */
        /* Compare against itself */
        check=H5S_select_shape_same_test(regular_hyper_sid,regular_hyper_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against copy of itself */
        tmp_sid=H5Scopy(regular_hyper_sid);
        CHECK(tmp_sid, FAIL, "H5Scopy");

        check=H5S_select_shape_same_test(regular_hyper_sid,tmp_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        ret = H5Sclose(tmp_sid);
        CHECK(ret, FAIL, "H5Sclose");

        /* Compare against "all" selection */
        check=H5S_select_shape_same_test(regular_hyper_sid,all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "none" selection */
        check=H5S_select_shape_same_test(regular_hyper_sid,none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against single point selection */
        check=H5S_select_shape_same_test(regular_hyper_sid,single_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against multiple point selection */
        check=H5S_select_shape_same_test(regular_hyper_sid,mult_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "plain" single hyperslab selection */
        check=H5S_select_shape_same_test(regular_hyper_sid,single_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "all" single hyperslab selection */
        check=H5S_select_shape_same_test(regular_hyper_sid,single_hyper_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "single point" single hyperslab selection */
        check=H5S_select_shape_same_test(regular_hyper_sid,single_hyper_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against irregular hyperslab selection */
        check=H5S_select_shape_same_test(regular_hyper_sid,irreg_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "no" hyperslab selection */
        check=H5S_select_shape_same_test(regular_hyper_sid,none_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Construct point selection which matches regular, strided hyperslab selection */
            /* Create dataspace for point selection */
            tmp_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
            CHECK(tmp_sid, FAIL, "H5Screate_simple");

            /* Select sequence of points for point selection */
            for(u=2; u<11; u+=2) {
                for(v=0; v<2; v++) {
                    coord2[v][0]=u; coord2[v][1]=(v*2)+2;
                } /* end for */
                ret = H5Sselect_elements(tmp_sid, H5S_SELECT_APPEND, (size_t)2, (const hsize_t *)coord2);
                CHECK(ret, FAIL, "H5Sselect_elements");
            } /* end for */

            /* Compare against hyperslab selection */
            check=H5S_select_shape_same_test(regular_hyper_sid,tmp_sid);
            VERIFY(check, TRUE, "H5S_select_shape_same_test");

            ret = H5Sclose(tmp_sid);
            CHECK(ret, FAIL, "H5Sclose");

        /* Construct hyperslab selection which matches regular, strided hyperslab selection */
            /* Create dataspace for hyperslab selection */
            tmp_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
            CHECK(tmp_sid, FAIL, "H5Screate_simple");

            /* Un-select entire extent */
            ret = H5Sselect_none(tmp_sid);
            CHECK(ret, FAIL, "H5Sselect_none");

            /* Select sequence of rows for hyperslab selection */
            for(u=2; u<11; u+=2) {
                start[0]=u; start[1]=3;
                stride[0]=1; stride[1]=2;
                count[0]=1; count[1]=2;
                block[0]=1; block[1]=1;
                ret = H5Sselect_hyperslab(tmp_sid,H5S_SELECT_OR,start,stride,count,block);
                CHECK(ret, FAIL, "H5Sselect_hyperslab");
            } /* end for */

            /* Compare against hyperslab selection */
            check=H5S_select_shape_same_test(regular_hyper_sid,tmp_sid);
            VERIFY(check, TRUE, "H5S_select_shape_same_test");

            ret = H5Sclose(tmp_sid);
            CHECK(ret, FAIL, "H5Sclose");

        /* Construct regular hyperslab selection with an offset which matches regular, strided hyperslab selection */
            /* Create dataspace for hyperslab selection */
            tmp_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
            CHECK(tmp_sid, FAIL, "H5Screate_simple");

            /* Select regular, strided hyperslab selection at an offset */
            start[0]=1; start[1]=1;
            stride[0]=2; stride[1]=2;
            count[0]=5; count[1]=2;
            block[0]=1; block[1]=1;
            ret = H5Sselect_hyperslab(tmp_sid,H5S_SELECT_SET,start,stride,count,block);
            CHECK(ret, FAIL, "H5Sselect_hyperslab");

            /* Compare against hyperslab selection */
            check=H5S_select_shape_same_test(regular_hyper_sid,tmp_sid);
            VERIFY(check, TRUE, "H5S_select_shape_same_test");

            ret = H5Sclose(tmp_sid);
            CHECK(ret, FAIL, "H5Sclose");

        /* Compare against scalar "all" hyperslab selection */
        check = H5S_select_shape_same_test(regular_hyper_sid, scalar_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against scalar "none" hyperslab selection */
        check = H5S_select_shape_same_test(regular_hyper_sid, scalar_none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

    /* Compare irregular hyperslab selection to all the selections created */
        /* Compare against itself */
        check=H5S_select_shape_same_test(irreg_hyper_sid,irreg_hyper_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against copy of itself */
        tmp_sid=H5Scopy(irreg_hyper_sid);
        CHECK(tmp_sid, FAIL, "H5Scopy");

        check=H5S_select_shape_same_test(irreg_hyper_sid,tmp_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        ret = H5Sclose(tmp_sid);
        CHECK(ret, FAIL, "H5Sclose");

        /* Compare against "all" selection */
        check=H5S_select_shape_same_test(irreg_hyper_sid,all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "none" selection */
        check=H5S_select_shape_same_test(irreg_hyper_sid,none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against single point selection */
        check=H5S_select_shape_same_test(irreg_hyper_sid,single_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against multiple point selection */
        check=H5S_select_shape_same_test(irreg_hyper_sid,mult_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "plain" single hyperslab selection */
        check=H5S_select_shape_same_test(irreg_hyper_sid,single_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "all" single hyperslab selection */
        check=H5S_select_shape_same_test(irreg_hyper_sid,single_hyper_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "single point" single hyperslab selection */
        check=H5S_select_shape_same_test(irreg_hyper_sid,single_hyper_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against regular, strided hyperslab selection */
        check=H5S_select_shape_same_test(irreg_hyper_sid,regular_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "no" hyperslab selection */
        check=H5S_select_shape_same_test(irreg_hyper_sid,none_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Construct hyperslab selection which matches irregular hyperslab selection */
            /* Create dataspace for hyperslab selection */
            tmp_sid = H5Screate_simple(SPACE9_RANK, dims, NULL);
            CHECK(tmp_sid, FAIL, "H5Screate_simple");

            start[0]=2; start[1]=2;
            stride[0]=1; stride[1]=1;
            count[0]=1; count[1]=1;
            block[0]=1; block[1]=1;
            ret = H5Sselect_hyperslab(tmp_sid,H5S_SELECT_SET,start,stride,count,block);
            CHECK(ret, FAIL, "H5Sselect_hyperslab");

            /* Select sequence of columns for hyperslab selection */
            for(u=0; u<3; u++) {
                start[0]=4; start[1]=u+4;
                stride[0]=1; stride[1]=1;
                count[0]=1; count[1]=1;
                block[0]=3; block[1]=1;
                ret = H5Sselect_hyperslab(tmp_sid,H5S_SELECT_OR,start,stride,count,block);
                CHECK(ret, FAIL, "H5Sselect_hyperslab");
            } /* end for */

            /* Compare against hyperslab selection */
            check=H5S_select_shape_same_test(irreg_hyper_sid,tmp_sid);
            VERIFY(check, TRUE, "H5S_select_shape_same_test");

            ret = H5Sclose(tmp_sid);
            CHECK(ret, FAIL, "H5Sclose");

        /* Compare against scalar "all" hyperslab selection */
        check = H5S_select_shape_same_test(irreg_hyper_sid, scalar_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against scalar "none" hyperslab selection */
        check = H5S_select_shape_same_test(irreg_hyper_sid, scalar_none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");


    /* Compare scalar "all" dataspace with all selections created */

        /* Compare against itself */
        check = H5S_select_shape_same_test(scalar_all_sid, scalar_all_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against copy of itself */
        tmp_sid = H5Scopy(scalar_all_sid);
        CHECK(tmp_sid, FAIL, "H5Scopy");

        check = H5S_select_shape_same_test(scalar_all_sid, tmp_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        ret = H5Sclose(tmp_sid);
        CHECK(ret, FAIL, "H5Sclose");

        /* Compare against "all" selection */
        check = H5S_select_shape_same_test(scalar_all_sid, all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "none" selection */
        check = H5S_select_shape_same_test(scalar_all_sid, none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against single point selection */
        check = H5S_select_shape_same_test(scalar_all_sid, single_pt_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against multiple point selection */
        check = H5S_select_shape_same_test(scalar_all_sid, mult_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "plain" single hyperslab selection */
        check = H5S_select_shape_same_test(scalar_all_sid, single_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "all" single hyperslab selection */
        check = H5S_select_shape_same_test(scalar_all_sid, single_hyper_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "single point" single hyperslab selection */
        check = H5S_select_shape_same_test(scalar_all_sid, single_hyper_pt_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against regular, strided hyperslab selection */
        check = H5S_select_shape_same_test(scalar_all_sid, regular_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against irregular hyperslab selection */
        check = H5S_select_shape_same_test(scalar_all_sid, irreg_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "no" hyperslab selection */
        check = H5S_select_shape_same_test(scalar_all_sid, none_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against scalar "none" hyperslab selection */
        check = H5S_select_shape_same_test(scalar_all_sid, scalar_none_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");


    /* Compare scalar "none" dataspace with all selections created */

        /* Compare against itself */
        check = H5S_select_shape_same_test(scalar_none_sid, scalar_none_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against copy of itself */
        tmp_sid = H5Scopy(scalar_none_sid);
        CHECK(tmp_sid, FAIL, "H5Scopy");

        check = H5S_select_shape_same_test(scalar_none_sid, tmp_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        ret = H5Sclose(tmp_sid);
        CHECK(ret, FAIL, "H5Sclose");

        /* Compare against "all" selection */
        check = H5S_select_shape_same_test(scalar_none_sid, all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "none" selection */
        check = H5S_select_shape_same_test(scalar_none_sid, none_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against single point selection */
        check = H5S_select_shape_same_test(scalar_none_sid, single_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against multiple point selection */
        check = H5S_select_shape_same_test(scalar_none_sid, mult_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "plain" single hyperslab selection */
        check = H5S_select_shape_same_test(scalar_none_sid, single_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "all" single hyperslab selection */
        check = H5S_select_shape_same_test(scalar_none_sid, single_hyper_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "single point" single hyperslab selection */
        check = H5S_select_shape_same_test(scalar_none_sid, single_hyper_pt_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against regular, strided hyperslab selection */
        check = H5S_select_shape_same_test(scalar_none_sid, regular_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against irregular hyperslab selection */
        check = H5S_select_shape_same_test(scalar_none_sid, irreg_hyper_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");

        /* Compare against "no" hyperslab selection */
        check = H5S_select_shape_same_test(scalar_none_sid, none_hyper_sid);
        VERIFY(check, TRUE, "H5S_select_shape_same_test");

        /* Compare against scalar "all" hyperslab selection */
        check = H5S_select_shape_same_test(scalar_none_sid, scalar_all_sid);
        VERIFY(check, FALSE, "H5S_select_shape_same_test");


    /* Close dataspaces */
    ret = H5Sclose(all_sid);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(none_sid);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(single_pt_sid);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(mult_pt_sid);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(single_hyper_sid);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(single_hyper_all_sid);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(single_hyper_pt_sid);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(regular_hyper_sid);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(irreg_hyper_sid);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(none_hyper_sid);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(scalar_all_sid);
    CHECK(ret, FAIL, "H5Sclose");
    ret = H5Sclose(scalar_none_sid);
    CHECK(ret, FAIL, "H5Sclose");
}   /* test_shape_same() */

/****************************************************************
**
**  test_shape_same_dr__smoke_check_1(): 
**
**	Create a square, 2 D data space (10 X 10), and select 
**	all of it.
**
**      Similarly, create nine, 3 D data spaces (10 X 10 X 10), 
**	and select (10 X 10 X 1) hyper slabs in each, three with 
**	the slab parallel to the xy plane, three parallel to the 
**	xz plane, and three parallel to the yz plane.
**
**	Assuming that z is the fastest changing dimension, 
**	H5S_select_shape_same() should return TRUE when comparing 
**	the full 2 D space against any hyperslab parallel to the 
**	yz plane in the 3 D space, and FALSE when comparing the 
**	full 2 D space against the other two hyper slabs.
**
**	Also create two additional 3 D data spaces (10 X 10 X 10), 
**	and select a (10 X 10 X 2) hyper slab parallel to the yz 
**	axis in one of them, and two parallel (10 X 10 X 1) hyper 
**	slabs parallel to the yz axis in the other.  
**	H5S_select_shape_same() should return FALSE when comparing 
**	each to the 2 D selection.
**
****************************************************************/
static void
test_shape_same_dr__smoke_check_1(void)
{
    hid_t	small_square_sid;
    hid_t	small_cube_xy_slice_0_sid;
    hid_t	small_cube_xy_slice_1_sid;
    hid_t	small_cube_xy_slice_2_sid;
    hid_t	small_cube_xz_slice_0_sid;
    hid_t	small_cube_xz_slice_1_sid;
    hid_t	small_cube_xz_slice_2_sid;
    hid_t	small_cube_yz_slice_0_sid;
    hid_t	small_cube_yz_slice_1_sid;
    hid_t	small_cube_yz_slice_2_sid;
    hid_t	small_cube_yz_slice_3_sid;
    hid_t	small_cube_yz_slice_4_sid;
    hsize_t	small_cube_dims[] = {10, 10, 10};
    hsize_t	start[3];
    hsize_t	stride[3];
    hsize_t	count[3];
    hsize_t	block[3];
    htri_t	check;		/* Shape comparison return value */
    herr_t	ret;		/* Generic return value	*/

    MESSAGE(7, ("	Smoke check 1: Slices through a cube.\n"));

    /* Create the 10 x 10 dataspace  */
    small_square_sid = H5Screate_simple(2, small_cube_dims, NULL);
    CHECK(small_square_sid, FAIL, "H5Screate_simple");

    /* Create the 10 X 10 X 10 dataspaces for the hyperslab parallel to the xy axis */
    small_cube_xy_slice_0_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xy_slice_0_sid, FAIL, "H5Screate_simple");

    small_cube_xy_slice_1_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xy_slice_1_sid, FAIL, "H5Screate_simple");

    small_cube_xy_slice_2_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xy_slice_2_sid, FAIL, "H5Screate_simple");

    start[0] = 0;	/* x */
    start[1] = 0;	/* y */
    start[2] = 0;	/* z */

    /* stride is a bit silly here, since we are only selecting a single  */
    /* contiguous plane, but include it anyway, with values large enough */
    /* to ensure that we will only get the single block selected. */
    stride[0] = 20;	/* x */
    stride[1] = 20;	/* y */
    stride[2] = 20;	/* z */

    count[0] = 1;	/* x */
    count[1] = 1;	/* y */
    count[2] = 1;	/* z */

    block[0] = 10;	/* x */
    block[1] = 10;	/* y */
    block[2] =  1;	/* z */
    ret = H5Sselect_hyperslab(small_cube_xy_slice_0_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[2] = 5;
    ret = H5Sselect_hyperslab(small_cube_xy_slice_1_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[2] = 9;
    ret = H5Sselect_hyperslab(small_cube_xy_slice_2_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    /* Create the 10 X 10 X 10 dataspaces for the hyperslab parallel to the xz axis */
    small_cube_xz_slice_0_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xz_slice_0_sid, FAIL, "H5Screate_simple");

    small_cube_xz_slice_1_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xz_slice_1_sid, FAIL, "H5Screate_simple");

    small_cube_xz_slice_2_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xz_slice_2_sid, FAIL, "H5Screate_simple");

    start[0] = 0;	/* x */
    start[1] = 0;	/* y */
    start[2] = 0;	/* z */

    /* stride is a bit silly here, since we are only selecting a single  */
    /* contiguous chunk, but include it anyway, with values large enough */
    /* to ensure that we will only get the single chunk. */
    stride[0] = 20;	/* x */
    stride[1] = 20;	/* y */
    stride[2] = 20;	/* z */

    count[0] = 1;	/* x */
    count[1] = 1;	/* y */
    count[2] = 1;	/* z */

    block[0] = 10;	/* x */
    block[1] =  1;	/* y */
    block[2] = 10;	/* z */
    ret = H5Sselect_hyperslab(small_cube_xz_slice_0_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[1] = 4;
    ret = H5Sselect_hyperslab(small_cube_xz_slice_1_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[1] = 9;
    ret = H5Sselect_hyperslab(small_cube_xz_slice_2_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    /* Create the 10 X 10 X 10 dataspaces for the hyperslabs parallel to the yz axis */
    small_cube_yz_slice_0_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_yz_slice_0_sid, FAIL, "H5Screate_simple");

    small_cube_yz_slice_1_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_yz_slice_1_sid, FAIL, "H5Screate_simple");

    small_cube_yz_slice_2_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_yz_slice_2_sid, FAIL, "H5Screate_simple");

    small_cube_yz_slice_3_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_yz_slice_3_sid, FAIL, "H5Screate_simple");

    small_cube_yz_slice_4_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_yz_slice_4_sid, FAIL, "H5Screate_simple");

    start[0] = 0;	/* x */
    start[1] = 0;	/* y */
    start[2] = 0;	/* z */

    /* stride is a bit silly here, since we are only selecting a single  */
    /* contiguous chunk, but include it anyway, with values large enough */
    /* to ensure that we will only get the single chunk. */
    stride[0] = 20;	/* x */
    stride[1] = 20;	/* y */
    stride[2] = 20;	/* z */

    count[0] = 1;	/* x */
    count[1] = 1;	/* y */
    count[2] = 1;	/* z */

    block[0] =  1;	/* x */
    block[1] = 10;	/* y */
    block[2] = 10;	/* z */

    ret = H5Sselect_hyperslab(small_cube_yz_slice_0_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 4;
    ret = H5Sselect_hyperslab(small_cube_yz_slice_1_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 9;
    ret = H5Sselect_hyperslab(small_cube_yz_slice_2_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 4;
    block[0] = 2;
    ret = H5Sselect_hyperslab(small_cube_yz_slice_3_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 3;
    block[0] = 1;
    ret = H5Sselect_hyperslab(small_cube_yz_slice_4_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 6;
    ret = H5Sselect_hyperslab(small_cube_yz_slice_4_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    /* setup is done -- run the tests: */

    /* Compare against "xy" selection */
    check = H5S_select_shape_same_test(small_cube_xy_slice_0_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_xy_slice_1_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_xy_slice_2_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");


    /* Compare against "xz" selection */
    check = H5S_select_shape_same_test(small_cube_xz_slice_0_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_xz_slice_1_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_xz_slice_2_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");


    /* Compare against "yz" selection */
    check = H5S_select_shape_same_test(small_cube_yz_slice_0_sid, small_square_sid);
    VERIFY(check, TRUE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_yz_slice_1_sid, small_square_sid);
    VERIFY(check, TRUE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_yz_slice_2_sid, small_square_sid);
    VERIFY(check, TRUE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_yz_slice_3_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_yz_slice_4_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");


    /* Close dataspaces */
    ret = H5Sclose(small_square_sid);
    CHECK(ret, FAIL, "H5Sclose");


    ret = H5Sclose(small_cube_xy_slice_0_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_xy_slice_1_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_xy_slice_2_sid);
    CHECK(ret, FAIL, "H5Sclose");


    ret = H5Sclose(small_cube_xz_slice_0_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_xz_slice_1_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_xz_slice_2_sid);
    CHECK(ret, FAIL, "H5Sclose");


    ret = H5Sclose(small_cube_yz_slice_0_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_yz_slice_1_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_yz_slice_2_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_yz_slice_3_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_yz_slice_4_sid);
    CHECK(ret, FAIL, "H5Sclose");

} /* test_shape_same_dr__smoke_check_1() */

/****************************************************************
**
**  test_shape_same_dr__smoke_check_2(): 
**
**	Create a square, 2 D data space (10 X 10), and select 
**	a "checker board" hyper slab as follows:
**
**		* * - - * * - - * *
**              * * - - * * - - * *
**              - - * * - - * * - -
**              - - * * - - * * - -
**		* * - - * * - - * *
**              * * - - * * - - * *
**              - - * * - - * * - -
**              - - * * - - * * - -
**		* * - - * * - - * *
**              * * - - * * - - * *
**
**	where asterisks indicate selected elements, and dashes 
**	indicate unselected elements.
**
**	Similarly, create nine, 3 D data spaces (10 X 10 X 10), 
**	and select similar (10 X 10 X 1) checker board hyper 
**	slabs in each, three with the slab parallel to  the xy 
**	plane, three parallel to the xz plane, and three parallel 
**	to the yz plane.
**
**	Assuming that z is the fastest changing dimension, 
**	H5S_select_shape_same() should return TRUE when comparing 
**	the 2 D space checker board selection against a checker 
**	board hyperslab parallel to the yz plane in the 3 D 
**	space, and FALSE when comparing the 2 D checkerboard 
**	selection against two hyper slabs parallel to the xy 
**	or xz planes.
**
**	Also create an additional 3 D data spaces (10 X 10 X 10), 
**	and select a checker board parallel with the yz axis, 
**	save with some squares being on different planes.  
**	H5S_select_shape_same() should return FALSE when 
**	comparing this selection to the 2 D selection.
**
****************************************************************/
static void
test_shape_same_dr__smoke_check_2(void)
{
    hid_t	small_square_sid;
    hid_t	small_cube_xy_slice_0_sid;
    hid_t	small_cube_xy_slice_1_sid;
    hid_t	small_cube_xy_slice_2_sid;
    hid_t	small_cube_xz_slice_0_sid;
    hid_t	small_cube_xz_slice_1_sid;
    hid_t	small_cube_xz_slice_2_sid;
    hid_t	small_cube_yz_slice_0_sid;
    hid_t	small_cube_yz_slice_1_sid;
    hid_t	small_cube_yz_slice_2_sid;
    hid_t	small_cube_yz_slice_3_sid;
    hsize_t	small_cube_dims[] = {10, 10, 10};
    hsize_t	start[3];
    hsize_t	stride[3];
    hsize_t	count[3];
    hsize_t	block[3];
    htri_t	check;		/* Shape comparison return value */
    herr_t	ret;		/* Generic return value	*/

    MESSAGE(7, ("	Smoke check 2: Checker board slices through a cube.\n"));

    /* Create the 10 x 10 dataspace  */
    small_square_sid = H5Screate_simple(2, small_cube_dims, NULL);
    CHECK(small_square_sid, FAIL, "H5Screate_simple");

    start[0] = 0;	/* x */
    start[1] = 0;	/* y */

    stride[0] = 4;	/* x */
    stride[1] = 4;	/* y */

    count[0] = 3;	/* x */
    count[1] = 3;	/* y */

    block[0] = 2;	/* x */
    block[1] = 2;	/* y */
    ret = H5Sselect_hyperslab(small_square_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 2;	/* x */
    start[1] = 2;	/* y */

    stride[0] = 4;	/* x */
    stride[1] = 4;	/* y */

    count[0] = 2;	/* x */
    count[1] = 2;	/* y */

    block[0] = 2;	/* x */
    block[1] = 2;	/* y */
    ret = H5Sselect_hyperslab(small_square_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    /* Create the 10 X 10 X 10 dataspaces for the hyperslab parallel to the xy axis */
    small_cube_xy_slice_0_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xy_slice_0_sid, FAIL, "H5Screate_simple");

    small_cube_xy_slice_1_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xy_slice_1_sid, FAIL, "H5Screate_simple");

    small_cube_xy_slice_2_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xy_slice_2_sid, FAIL, "H5Screate_simple");


    start[0] = 0;	/* x */
    start[1] = 0;	/* y */
    start[2] = 0;	/* z */

    stride[0] =  4;	/* x */
    stride[1] =  4;	/* y  */
    stride[2] =  20;	/* z -- large enough that there will only be one slice */

    count[0] = 3;	/* x */
    count[1] = 3;	/* y */
    count[2] = 1;	/* z */

    block[0] = 2;	/* x */
    block[1] = 2;	/* y */
    block[2] = 1;	/* z */
    ret = H5Sselect_hyperslab(small_cube_xy_slice_0_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[2] = 3;
    ret = H5Sselect_hyperslab(small_cube_xy_slice_1_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[2] = 9;
    ret = H5Sselect_hyperslab(small_cube_xy_slice_2_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    start[0] = 2;	/* x */
    start[1] = 2;	/* y */
    start[2] = 0;	/* z */

    stride[0] =  4;	/* x */
    stride[1] =  4;	/* y  */
    stride[2] =  20;	/* z -- large enough that there will only be one slice */

    count[0] = 2;	/* x */
    count[1] = 2;	/* y */
    count[2] = 1;	/* z */

    block[0] = 2;	/* x */
    block[1] = 2;	/* y */
    block[2] = 1;	/* z */
    ret = H5Sselect_hyperslab(small_cube_xy_slice_0_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[2] = 3;
    ret = H5Sselect_hyperslab(small_cube_xy_slice_1_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[2] = 9;
    ret = H5Sselect_hyperslab(small_cube_xy_slice_2_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    /* Create the 10 X 10 X 10 dataspaces for the hyperslab parallel to the xz axis */
    small_cube_xz_slice_0_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xz_slice_0_sid, FAIL, "H5Screate_simple");

    small_cube_xz_slice_1_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xz_slice_1_sid, FAIL, "H5Screate_simple");

    small_cube_xz_slice_2_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xz_slice_2_sid, FAIL, "H5Screate_simple");


    start[0] = 0;	/* x */
    start[1] = 0;	/* y */
    start[2] = 0;	/* z */

    stride[0] =  4;	/* x */
    stride[1] = 20;	/* y -- large enough that there will only be one slice */
    stride[2] =  4;	/* z */

    count[0] = 3;	/* x */
    count[1] = 1;	/* y */
    count[2] = 3;	/* z */

    block[0] = 2;	/* x */
    block[1] = 1;	/* y */
    block[2] = 2;	/* z */
    ret = H5Sselect_hyperslab(small_cube_xz_slice_0_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[1] = 5;
    ret = H5Sselect_hyperslab(small_cube_xz_slice_1_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[1] = 9;
    ret = H5Sselect_hyperslab(small_cube_xz_slice_2_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 2;	/* x */
    start[1] = 0;	/* y */
    start[2] = 2;	/* z */

    stride[0] =  4;	/* x */
    stride[1] = 20;	/* y -- large enough that there will only be one slice */
    stride[2] =  4;	/* z */

    count[0] = 2;	/* x */
    count[1] = 1;	/* y */
    count[2] = 2;	/* z */

    block[0] = 2;	/* x */
    block[1] = 1;	/* y */
    block[2] = 2;	/* z */
    ret = H5Sselect_hyperslab(small_cube_xz_slice_0_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[1] = 5;
    ret = H5Sselect_hyperslab(small_cube_xz_slice_1_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[1] = 9;
    ret = H5Sselect_hyperslab(small_cube_xz_slice_2_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    /* Create the 10 X 10 X 10 dataspaces for the hyperslabs parallel to the yz axis */
    small_cube_yz_slice_0_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_yz_slice_0_sid, FAIL, "H5Screate_simple");

    small_cube_yz_slice_1_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_yz_slice_1_sid, FAIL, "H5Screate_simple");

    small_cube_yz_slice_2_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_yz_slice_2_sid, FAIL, "H5Screate_simple");

    small_cube_yz_slice_3_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_yz_slice_3_sid, FAIL, "H5Screate_simple");

    start[0] = 0;	/* x */
    start[1] = 0;	/* y */
    start[2] = 0;	/* z */

    stride[0] = 20;	/* x -- large enough that there will only be one slice */
    stride[1] =  4;	/* y  */
    stride[2] =  4;	/* z */

    count[0] = 1;	/* x */
    count[1] = 3;	/* y */
    count[2] = 3;	/* z */

    block[0] = 1;	/* x */
    block[1] = 2;	/* y */
    block[2] = 2;	/* z */
    ret = H5Sselect_hyperslab(small_cube_yz_slice_0_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 8;
    ret = H5Sselect_hyperslab(small_cube_yz_slice_1_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 9;
    ret = H5Sselect_hyperslab(small_cube_yz_slice_2_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 3;
    ret = H5Sselect_hyperslab(small_cube_yz_slice_3_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    start[0] = 0;	/* x */
    start[1] = 2;	/* y */
    start[2] = 2;	/* z */

    stride[0] = 20;	/* x -- large enough that there will only be one slice */
    stride[1] =  4;	/* y */
    stride[2] =  4;	/* z */

    count[0] = 1;	/* x */
    count[1] = 2;	/* y */
    count[2] = 2;	/* z */

    block[0] = 1;	/* x */
    block[1] = 2;	/* y */
    block[2] = 2;	/* z */
    ret = H5Sselect_hyperslab(small_cube_yz_slice_0_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 8;
    ret = H5Sselect_hyperslab(small_cube_yz_slice_1_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 9;
    ret = H5Sselect_hyperslab(small_cube_yz_slice_2_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 4;
    /* This test gets the right answer, but it fails the shape same
     * test in an unexpected point.  Bring this up with Quincey, as 
     * the oddness looks like it is not related to my code.
     *                                      -- JRM
     */
    ret = H5Sselect_hyperslab(small_cube_yz_slice_3_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    /* setup is done -- run the tests: */

    /* Compare against "xy" selection */
    check = H5S_select_shape_same_test(small_cube_xy_slice_0_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_xy_slice_1_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_xy_slice_2_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");


    /* Compare against "xz" selection */
    check = H5S_select_shape_same_test(small_cube_xz_slice_0_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_xz_slice_1_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_xz_slice_2_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");


    /* Compare against "yz" selection */
    check = H5S_select_shape_same_test(small_cube_yz_slice_0_sid, small_square_sid);
    VERIFY(check, TRUE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_yz_slice_1_sid, small_square_sid);
    VERIFY(check, TRUE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_yz_slice_2_sid, small_square_sid);
    VERIFY(check, TRUE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_yz_slice_3_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");


    /* Close dataspaces */
    ret = H5Sclose(small_square_sid);
    CHECK(ret, FAIL, "H5Sclose");


    ret = H5Sclose(small_cube_xy_slice_0_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_xy_slice_1_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_xy_slice_2_sid);
    CHECK(ret, FAIL, "H5Sclose");


    ret = H5Sclose(small_cube_xz_slice_0_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_xz_slice_1_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_xz_slice_2_sid);
    CHECK(ret, FAIL, "H5Sclose");


    ret = H5Sclose(small_cube_yz_slice_0_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_yz_slice_1_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_yz_slice_2_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_yz_slice_3_sid);
    CHECK(ret, FAIL, "H5Sclose");

} /* test_shape_same_dr__smoke_check_2() */


/****************************************************************
**
**  test_shape_same_dr__smoke_check_3(): 
**
**	Create a square, 2 D data space (10 X 10), and select an 
**	irregular hyper slab as follows:
**
**		y
**		9 - - - - - - - - - -
**		8 - - - - - - - - - -
**		7 - - - * * * * - - -
**		6 - - * * * * * - - -
**		5 - - * * - - - - - -
**		4 - - * * - * * - - -
**		3 - - * * - * * - - -
**		2 - - - - - - - - - -
**		1 - - - - - - - - - -
**	 	0 - - - - - - - - - -
**                0 1 2 3 4 5 6 7 8 9 x
**
**	where asterisks indicate selected elements, and dashes 
**	indicate unselected elements.
**
**	Similarly, create nine, 3 D data spaces (10 X 10 X 10), 
**	and select similar irregular hyper slabs in each, three 
**	with the slab parallel to the xy plane, three parallel 
**	to the xz plane, and three parallel to the yz plane.  
**	Further, translate the irregular slab in 2/3rds of the 
**	cases.
**
**	Assuming that z is the fastest changing dimension, 
**	H5S_select_shape_same() should return TRUE when 
**	comparing the 2 D irregular hyperslab selection 
**	against the irregular hyperslab selections parallel 
**	to the yz plane in the 3 D space, and FALSE when 
**	comparing it against the irregular hyper slabs 
**	selections parallel to the xy or xz planes.
**
****************************************************************/
static void
test_shape_same_dr__smoke_check_3(void)
{
    hid_t	small_square_sid;
    hid_t	small_cube_xy_slice_0_sid;
    hid_t	small_cube_xy_slice_1_sid;
    hid_t	small_cube_xy_slice_2_sid;
    hid_t	small_cube_xz_slice_0_sid;
    hid_t	small_cube_xz_slice_1_sid;
    hid_t	small_cube_xz_slice_2_sid;
    hid_t	small_cube_yz_slice_0_sid;
    hid_t	small_cube_yz_slice_1_sid;
    hid_t	small_cube_yz_slice_2_sid;
    hsize_t	small_cube_dims[] = {10, 10, 10};
    hsize_t	start[3];
    hsize_t	stride[3];
    hsize_t	count[3];
    hsize_t	block[3];
    htri_t	check;		/* Shape comparison return value */
    herr_t	ret;		/* Generic return value	*/

    MESSAGE(7, ("	Smoke check 3: Offset subsets of slices through a cube.\n"));

    /* Create the 10 x 10 dataspace  */
    small_square_sid = H5Screate_simple(2, small_cube_dims, NULL);
    CHECK(small_square_sid, FAIL, "H5Screate_simple");

    start[0] = 2;	/* x */
    start[1] = 3;	/* y */

    stride[0] = 20;	/* x */
    stride[1] = 20;	/* y */

    count[0] = 1;	/* x */
    count[1] = 1;	/* y */

    block[0] = 2;	/* x */
    block[1] = 4;	/* y */
    ret = H5Sselect_hyperslab(small_square_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 3;	/* x */
    start[1] = 6;	/* y */

    stride[0] = 20;	/* x */
    stride[1] = 20;	/* y */

    count[0] = 1;	/* x */
    count[1] = 1;	/* y */

    block[0] = 4;	/* x */
    block[1] = 2;	/* y */
    ret = H5Sselect_hyperslab(small_square_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 5;	/* x */
    start[1] = 3;	/* y */

    stride[0] = 20;	/* x */
    stride[1] = 20;	/* y */

    count[0] = 1;	/* x */
    count[1] = 1;	/* y */

    block[0] = 2;	/* x */
    block[1] = 2;	/* y */
    ret = H5Sselect_hyperslab(small_square_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    /* Create the 10 X 10 X 10 dataspaces for the hyperslab parallel to the xy axis */
    small_cube_xy_slice_0_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xy_slice_0_sid, FAIL, "H5Screate_simple");

    small_cube_xy_slice_1_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xy_slice_1_sid, FAIL, "H5Screate_simple");

    small_cube_xy_slice_2_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xy_slice_2_sid, FAIL, "H5Screate_simple");


    start[0] = 2;	/* x */
    start[1] = 3;	/* y */
    start[2] = 5;	/* z */

    stride[0] =  20;	/* x */
    stride[1] =  20;	/* y */
    stride[2] =  20;	/* z */

    count[0] = 1;	/* x */
    count[1] = 1;	/* y */
    count[2] = 1;	/* z */

    block[0] = 2;	/* x */
    block[1] = 4;	/* y */
    block[2] = 1;	/* z */
    ret = H5Sselect_hyperslab(small_cube_xy_slice_0_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the starting point to the origin */
    start[0] -= 1;	/* x */
    start[1] -= 2;	/* y */
    ret = H5Sselect_hyperslab(small_cube_xy_slice_1_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the irregular selection to the upper right hand corner */
    start[0] += 5;	/* x */
    start[1] += 5;	/* y */
    ret = H5Sselect_hyperslab(small_cube_xy_slice_2_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 3;	/* x */
    start[1] = 6;	/* y */
    start[2] = 5;	/* z */

    stride[0] =  20;	/* x */
    stride[1] =  20;	/* y  */
    stride[2] =  20;	/* z */

    count[0] = 1;	/* x */
    count[1] = 1;	/* y */
    count[2] = 1;	/* z */

    block[0] = 4;	/* x */
    block[1] = 2;	/* y */
    block[2] = 1;	/* z */
    ret = H5Sselect_hyperslab(small_cube_xy_slice_0_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the starting point to the origin */
    start[0] -= 1;	/* x */
    start[1] -= 2;	/* y */
    ret = H5Sselect_hyperslab(small_cube_xy_slice_1_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the irregular selection to the upper right hand corner */
    start[0] += 5;	/* x */
    start[1] += 5;	/* y */
    ret = H5Sselect_hyperslab(small_cube_xy_slice_2_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 5;	/* x */
    start[1] = 3;	/* y */
    start[2] = 5;	/* z */

    stride[0] =  20;	/* x */
    stride[1] =  20;	/* y */
    stride[2] =  20;	/* z */

    count[0] = 1;	/* x */
    count[1] = 1;	/* y */
    count[2] = 1;	/* z */

    block[0] = 2;	/* x */
    block[1] = 2;	/* y */
    block[2] = 1;	/* z */
    ret = H5Sselect_hyperslab(small_cube_xy_slice_0_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the starting point to the origin */
    start[0] -= 1;	/* x */
    start[1] -= 2;	/* y */
    ret = H5Sselect_hyperslab(small_cube_xy_slice_1_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the irregular selection to the upper right hand corner */
    start[0] += 5;	/* x */
    start[1] += 5;	/* y */
    ret = H5Sselect_hyperslab(small_cube_xy_slice_2_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    /* Create the 10 X 10 X 10 dataspaces for the hyperslab parallel to the xz axis */
    small_cube_xz_slice_0_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xz_slice_0_sid, FAIL, "H5Screate_simple");

    small_cube_xz_slice_1_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xz_slice_1_sid, FAIL, "H5Screate_simple");

    small_cube_xz_slice_2_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_xz_slice_2_sid, FAIL, "H5Screate_simple");

    start[0] = 2;	/* x */
    start[1] = 5;	/* y */
    start[2] = 3;	/* z */

    stride[0] = 20;	/* x */
    stride[1] = 20;	/* y */
    stride[2] = 20;	/* z */

    count[0] = 1;	/* x */
    count[1] = 1;	/* y */
    count[2] = 1;	/* z */

    block[0] = 2;	/* x */
    block[1] = 1;	/* y */
    block[2] = 4;	/* z */
    ret = H5Sselect_hyperslab(small_cube_xz_slice_0_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the starting point to the origin */
    start[0] -= 1;	/* x */
    start[2] -= 2;	/* y */
    ret = H5Sselect_hyperslab(small_cube_xz_slice_1_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the irregular selection to the upper right hand corner */
    start[0] += 5;	/* x */
    start[2] += 5;	/* y */
    ret = H5Sselect_hyperslab(small_cube_xz_slice_2_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 3;	/* x */
    start[1] = 5;	/* y */
    start[2] = 6;	/* z */

    stride[0] = 20;	/* x */
    stride[1] = 20;	/* y */
    stride[2] = 20;	/* z */

    count[0] = 1;	/* x */
    count[1] = 1;	/* y */
    count[2] = 1;	/* z */

    block[0] = 4;	/* x */
    block[1] = 1;	/* y */
    block[2] = 2;	/* z */
    ret = H5Sselect_hyperslab(small_cube_xz_slice_0_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the starting point to the origin */
    start[0] -= 1;	/* x */
    start[2] -= 2;	/* y */
    ret = H5Sselect_hyperslab(small_cube_xz_slice_1_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the irregular selection to the upper right hand corner */
    start[0] += 5;	/* x */
    start[2] += 5;	/* y */
    ret = H5Sselect_hyperslab(small_cube_xz_slice_2_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 5;	/* x */
    start[1] = 5;	/* y */
    start[2] = 3;	/* z */

    stride[0] = 20;	/* x */
    stride[1] = 20;	/* y */
    stride[2] = 20;	/* z */

    count[0] = 1;	/* x */
    count[1] = 1;	/* y */
    count[2] = 1;	/* z */

    block[0] = 2;	/* x */
    block[1] = 1;	/* y */
    block[2] = 2;	/* z */
    ret = H5Sselect_hyperslab(small_cube_xz_slice_0_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the starting point to the origin */
    start[0] -= 1;	/* x */
    start[2] -= 2;	/* y */
    ret = H5Sselect_hyperslab(small_cube_xz_slice_1_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the irregular selection to the upper right hand corner */
    start[0] += 5;	/* x */
    start[2] += 5;	/* y */
    ret = H5Sselect_hyperslab(small_cube_xz_slice_2_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


/* QAK: Start here.
 */
    /* Create the 10 X 10 X 10 dataspaces for the hyperslabs parallel to the yz axis */
    small_cube_yz_slice_0_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_yz_slice_0_sid, FAIL, "H5Screate_simple");

    small_cube_yz_slice_1_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_yz_slice_1_sid, FAIL, "H5Screate_simple");

    small_cube_yz_slice_2_sid = H5Screate_simple(3, small_cube_dims, NULL);
    CHECK(small_cube_yz_slice_2_sid, FAIL, "H5Screate_simple");

    start[0] = 8;	/* x */
    start[1] = 2;	/* y */
    start[2] = 3;	/* z */

    stride[0] = 20;	/* x -- large enough that there will only be one slice */
    stride[1] = 20;	/* y */
    stride[2] = 20;	/* z */

    count[0] = 1;	/* x */
    count[1] = 1;	/* y */
    count[2] = 1;	/* z */

    block[0] = 1;	/* x */
    block[1] = 2;	/* y */
    block[2] = 4;	/* z */
    ret = H5Sselect_hyperslab(small_cube_yz_slice_0_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the starting point to the origin */
    start[1] -= 1;	/* x */
    start[2] -= 2;	/* y */
    ret = H5Sselect_hyperslab(small_cube_yz_slice_1_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the irregular selection to the upper right hand corner */
    start[0] += 5;	/* x */
    start[2] += 5;	/* y */
    ret = H5Sselect_hyperslab(small_cube_yz_slice_2_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 8;	/* x */
    start[1] = 3;	/* y */
    start[2] = 6;	/* z */

    stride[0] = 20;	/* x */
    stride[1] = 20;	/* y */
    stride[2] = 20;	/* z */

    count[0] = 1;	/* x */
    count[1] = 1;	/* y */
    count[2] = 1;	/* z */

    block[0] = 1;	/* x */
    block[1] = 4;	/* y */
    block[2] = 2;	/* z */
    ret = H5Sselect_hyperslab(small_cube_yz_slice_0_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the starting point to the origin */
    start[1] -= 1;	/* x */
    start[2] -= 2;	/* y */
    ret = H5Sselect_hyperslab(small_cube_yz_slice_1_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the irregular selection to the upper right hand corner */
    start[0] += 5;	/* x */
    start[2] += 5;	/* y */
    ret = H5Sselect_hyperslab(small_cube_yz_slice_2_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start[0] = 8;	/* x */
    start[1] = 5;	/* y */
    start[2] = 3;	/* z */

    stride[0] = 20;	/* x */
    stride[1] = 20;	/* y */
    stride[2] = 20;	/* z */

    count[0] = 1;	/* x */
    count[1] = 1;	/* y */
    count[2] = 1;	/* z */

    block[0] = 1;	/* x */
    block[1] = 2;	/* y */
    block[2] = 2;	/* z */
    ret = H5Sselect_hyperslab(small_cube_yz_slice_0_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the starting point to the origin */
    start[1] -= 1;	/* x */
    start[2] -= 2;	/* y */
    ret = H5Sselect_hyperslab(small_cube_yz_slice_1_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* move the irregular selection to the upper right hand corner */
    start[0] += 5;	/* x */
    start[2] += 5;	/* y */
    ret = H5Sselect_hyperslab(small_cube_yz_slice_2_sid, H5S_SELECT_OR,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    /* setup is done -- run the tests: */

    /* Compare against "xy" selection */
    check = H5S_select_shape_same_test(small_cube_xy_slice_0_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_xy_slice_1_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_xy_slice_2_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");


    /* Compare against "xz" selection */
    check = H5S_select_shape_same_test(small_cube_xz_slice_0_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_xz_slice_1_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_xz_slice_2_sid, small_square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");


    /* Compare against "yz" selection */
    check = H5S_select_shape_same_test(small_cube_yz_slice_0_sid, small_square_sid);
    VERIFY(check, TRUE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_yz_slice_1_sid, small_square_sid);
    VERIFY(check, TRUE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(small_cube_yz_slice_2_sid, small_square_sid);
    VERIFY(check, TRUE, "H5S_select_shape_same_test");


    /* Close dataspaces */
    ret = H5Sclose(small_square_sid);
    CHECK(ret, FAIL, "H5Sclose");


    ret = H5Sclose(small_cube_xy_slice_0_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_xy_slice_1_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_xy_slice_2_sid);
    CHECK(ret, FAIL, "H5Sclose");


    ret = H5Sclose(small_cube_xz_slice_0_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_xz_slice_1_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_xz_slice_2_sid);
    CHECK(ret, FAIL, "H5Sclose");


    ret = H5Sclose(small_cube_yz_slice_0_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_yz_slice_1_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(small_cube_yz_slice_2_sid);
    CHECK(ret, FAIL, "H5Sclose");

} /* test_shape_same_dr__smoke_check_3() */


/****************************************************************
**
**  test_shape_same_dr__smoke_check_4(): 
**
**	Create a square, 2 D data space (10 X 10), and select 
**	the entire space.
**
**	Similarly, create 3 D and 4 D data spaces:
**
**		(1 X 10 X 10)
**		(10 X 1 X 10)
**		(10 X 10 X 1)
**		(10 X 10 X 10)
**
**		(1 X 1 X 10 X 10)
**		(1 X 10 X 1 X 10)
**		(1 X 10 X 10 X 1)
**		(10 X 1 X 1 X 10)
**		(10 X 1 X 10 X 1)
**		(10 X 10 X 1 X 1)
**		(10 X 1 X 10 X 10)
**
**	And select these entire spaces as well.
**
**	Compare the 2 D space against all the other spaces
**	with H5S_select_shape_same().  The (1 X 10 X 10) & 
**	(1 X 1 X 10 X 10) should return TRUE.  All others
**	should return FALSE.
**
****************************************************************/
static void
test_shape_same_dr__smoke_check_4(void)
{
    hid_t	square_sid;
    hid_t	three_d_space_0_sid;
    hid_t	three_d_space_1_sid;
    hid_t	three_d_space_2_sid;
    hid_t	three_d_space_3_sid;
    hid_t	four_d_space_0_sid;
    hid_t	four_d_space_1_sid;
    hid_t	four_d_space_2_sid;
    hid_t	four_d_space_3_sid;
    hid_t	four_d_space_4_sid;
    hid_t	four_d_space_5_sid;
    hid_t	four_d_space_6_sid;
    hsize_t	dims[] = {10, 10, 10, 10};
    htri_t	check;		/* Shape comparison return value */
    herr_t	ret;		/* Generic return value	*/

    MESSAGE(7, ("	Smoke check 4: Spaces of different dimension but same size.\n"));

    /* Create the 10 x 10 dataspace  */
    square_sid = H5Screate_simple(2, dims, NULL);
    CHECK(square_sid, FAIL, "H5Screate_simple");

    /* create (1 X 10 X 10) data space */
    dims[0] = 1;
    dims[1] = 10;
    dims[2] = 10;
    three_d_space_0_sid = H5Screate_simple(3, dims, NULL);
    CHECK(three_d_space_0_sid, FAIL, "H5Screate_simple");

    /* create (10 X 1 X 10) data space */
    dims[0] = 10;
    dims[1] =  1;
    dims[2] = 10;
    three_d_space_1_sid = H5Screate_simple(3, dims, NULL);
    CHECK(three_d_space_1_sid, FAIL, "H5Screate_simple");

    /* create (10 X 10 X 1) data space */
    dims[0] = 10;
    dims[1] = 10;
    dims[2] =  1;
    three_d_space_2_sid = H5Screate_simple(3, dims, NULL);
    CHECK(three_d_space_2_sid, FAIL, "H5Screate_simple");

    /* create (10 X 10 X 10) data space */
    dims[0] = 10;
    dims[1] = 10;
    dims[2] = 10;
    three_d_space_3_sid = H5Screate_simple(3, dims, NULL);
    CHECK(three_d_space_3_sid, FAIL, "H5Screate_simple");


    /* create (1 X 1 X 10 X 10) data space */
    dims[0] =  1;
    dims[1] =  1;
    dims[2] = 10;
    dims[3] = 10;
    four_d_space_0_sid = H5Screate_simple(4, dims, NULL);
    CHECK(four_d_space_0_sid, FAIL, "H5Screate_simple");

    /* create (1 X 10 X 1 X 10) data space */
    dims[0] =  1;
    dims[1] = 10;
    dims[2] =  1;
    dims[3] = 10;
    four_d_space_1_sid = H5Screate_simple(4, dims, NULL);
    CHECK(four_d_space_1_sid, FAIL, "H5Screate_simple");

    /* create (1 X 10 X 10 X 1) data space */
    dims[0] =  1;
    dims[1] = 10;
    dims[2] = 10;
    dims[3] =  1;
    four_d_space_2_sid = H5Screate_simple(4, dims, NULL);
    CHECK(four_d_space_2_sid, FAIL, "H5Screate_simple");

    /* create (10 X 1 X 1 X 10) data space */
    dims[0] = 10;
    dims[1] =  1;
    dims[2] =  1;
    dims[3] = 10;
    four_d_space_3_sid = H5Screate_simple(4, dims, NULL);
    CHECK(four_d_space_3_sid, FAIL, "H5Screate_simple");

    /* create (10 X 1 X 10 X 1) data space */
    dims[0] = 10;
    dims[1] =  1;
    dims[2] = 10;
    dims[3] =  1;
    four_d_space_4_sid = H5Screate_simple(4, dims, NULL);
    CHECK(four_d_space_4_sid, FAIL, "H5Screate_simple");

    /* create (10 X 10 X 1 X 1) data space */
    dims[0] = 10;
    dims[1] = 10;
    dims[2] =  1;
    dims[3] =  1;
    four_d_space_5_sid = H5Screate_simple(4, dims, NULL);
    CHECK(four_d_space_5_sid, FAIL, "H5Screate_simple");

    /* create (10 X 1 X 10 X 10) data space */
    dims[0] = 10;
    dims[1] =  1;
    dims[2] = 10;
    dims[3] = 10;
    four_d_space_6_sid = H5Screate_simple(4, dims, NULL);
    CHECK(four_d_space_6_sid, FAIL, "H5Screate_simple");


    /* setup is done -- run the tests: */

    check = H5S_select_shape_same_test(three_d_space_0_sid, square_sid);
    VERIFY(check, TRUE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(three_d_space_1_sid, square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(three_d_space_2_sid, square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(three_d_space_3_sid, square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");


    check = H5S_select_shape_same_test(four_d_space_0_sid, square_sid);
    VERIFY(check, TRUE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(four_d_space_1_sid, square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(four_d_space_2_sid, square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(four_d_space_3_sid, square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(four_d_space_4_sid, square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(four_d_space_5_sid, square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");

    check = H5S_select_shape_same_test(four_d_space_6_sid, square_sid);
    VERIFY(check, FALSE, "H5S_select_shape_same_test");


    /* Close dataspaces */
    ret = H5Sclose(square_sid);
    CHECK(ret, FAIL, "H5Sclose");


    ret = H5Sclose(three_d_space_0_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(three_d_space_1_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(three_d_space_2_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(three_d_space_3_sid);
    CHECK(ret, FAIL, "H5Sclose");


    ret = H5Sclose(four_d_space_0_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(four_d_space_1_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(four_d_space_2_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(four_d_space_3_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(four_d_space_4_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(four_d_space_5_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(four_d_space_6_sid);
    CHECK(ret, FAIL, "H5Sclose");

} /* test_shape_same_dr__smoke_check_4() */

/****************************************************************
**
**  test_shape_same_dr__full_space_vs_slice(): Tests selection
**	of a full n-cube data space vs an n-dimensional slice of 
**	of an m-cube (m > n) in a call to H5S_select_shape_same().  
**	Note that this test does not require the n-cube and the 
**	n-dimensional slice to have the same rank (although
**	H5S_select_shape_same() should always return FALSE if 
**	they don't). 
**
**	Per Quincey's suggestion, only test up to 5 dimensional
**	spaces.
**
****************************************************************/
static void
test_shape_same_dr__full_space_vs_slice(int test_num,
                                        int small_rank,
                                        int large_rank,
                                        int offset,
                                        hsize_t edge_size,
                                        hbool_t dim_selected[],
                                        hbool_t expected_result)
{
    char	test_desc_0[128];
    char	test_desc_1[128];
    int         i;
    hid_t	n_cube_0_sid;  /* the fully selected hyper cube */
    hid_t	n_cube_1_sid;  /* the hyper cube in which a slice is selected */
    hsize_t	dims[SS_DR_MAX_RANK];
    hsize_t	start[SS_DR_MAX_RANK];
    hsize_t *	start_ptr;
    hsize_t	stride[SS_DR_MAX_RANK];
    hsize_t *	stride_ptr;
    hsize_t	count[SS_DR_MAX_RANK];
    hsize_t *	count_ptr;
    hsize_t	block[SS_DR_MAX_RANK];
    hsize_t *	block_ptr;
    htri_t	check;		/* Shape comparison return value */
    herr_t	ret;		/* Generic return value	*/

    HDassert( 0 < small_rank );
    HDassert( small_rank <= large_rank );
    HDassert( large_rank <= SS_DR_MAX_RANK );
    HDassert( 0 <= offset );
    HDassert( offset < large_rank );
    HDassert( edge_size > 0 ); 
    HDassert( edge_size <= 1000 ); 

    sprintf(test_desc_0, 
              "\tn-cube slice through m-cube (n <= m) test %d.\n", 
              test_num);
    MESSAGE(7, (test_desc_0));

    /* This statement must be updated if SS_DR_MAX_RANK is changed */
    sprintf(test_desc_1, 
              "\t\tranks: %d/%d offset: %d dim_selected: %d/%d/%d/%d/%d.\n",
              small_rank, large_rank, offset,
              (int)dim_selected[0],
              (int)dim_selected[1],
              (int)dim_selected[2],
              (int)dim_selected[3],
              (int)dim_selected[4]);
    MESSAGE(7, (test_desc_1));

    /* copy the edge size into the dims array */
    for(i = 0; i < SS_DR_MAX_RANK; i++)
        dims[i] = edge_size;

    /* Create the small n-cube */
    n_cube_0_sid = H5Screate_simple(small_rank, dims, NULL);
    CHECK(n_cube_0_sid, FAIL, "H5Screate_simple");


    /* Create the large n-cube */
    n_cube_1_sid = H5Screate_simple(large_rank, dims, NULL);
    CHECK(n_cube_1_sid, FAIL, "H5Screate_simple");

    /* set up start, stride, count, and block for the hyperslab selection */
    for(i = 0; i < SS_DR_MAX_RANK; i++) {
        stride[i] = 2 * edge_size; /* a bit silly in this case */
        count[i] = 1;
        if(dim_selected[i]) {
            start[i] = 0;
            block[i] = edge_size;
        } /* end if */
        else {
            start[i] = (hsize_t)offset;
            block[i] = 1;
        } /* end else */
    } /* end for */

    /* since large rank may be less than SS_DR_MAX_RANK, we may not
     * use the entire start, stride, count, and block arrays.  This
     * is a problem, since it is inconvenient to set up the dim_selected
     * array to reflect the large rank, and thus if large_rank <
     * SS_DR_MAX_RANK, we need to hide the lower index entries
     * from H5Sselect_hyperslab().
     *
     * Do this by setting up pointers to the first valid entry in start,
     * stride, count, and block below, and pass these pointers in
     * to H5Sselect_hyperslab() instead of the array base addresses.
     */

    i = SS_DR_MAX_RANK - large_rank;
    HDassert(i >= 0);

    start_ptr  = &(start[i]);
    stride_ptr = &(stride[i]);
    count_ptr  = &(count[i]);
    block_ptr  = &(block[i]);


    /* select the hyper slab */
    ret = H5Sselect_hyperslab(n_cube_1_sid, H5S_SELECT_SET,
                              start_ptr, stride_ptr, count_ptr, block_ptr);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    /* setup is done -- run the test: */
    check = H5S_select_shape_same_test(n_cube_0_sid, n_cube_1_sid);
    VERIFY(check, expected_result, "test_shape_same_dr__full_space_vs_slice");


    /* Close dataspaces */
    ret = H5Sclose(n_cube_0_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(n_cube_1_sid);
    CHECK(ret, FAIL, "H5Sclose");

}   /* test_shape_same_dr__full_space_vs_slice() */


/****************************************************************
**
**  test_shape_same_dr__run_full_space_vs_slice_tests(): 
**
**	Run the est_shape_same_dr__full_space_vs_slice() test
**	over a variety of ranks and offsets.
**
**	At present, we test H5S_select_shape_same() with 
**	fully selected 1, 2, 3, and 4 cubes as one parameter, and
**	1, 2, 3, and 4 dimensional slices through a n-cube of rank
**	no more than 5 (and at least the rank of the slice).  
**	 We stop at rank 5, as Quincey suggested that it would be 
**	sufficient.
**
**	All the n-cubes will have lengths of the same size, so 
**	H5S_select_shape_same() should return true iff:
**
**	1) the rank for the fully selected n cube equals the 
**         number of dimensions selected in the slice through the
**         m-cube (m >= n).
**
**	2) The dimensions selected in the slice through the m-cube
**	   are the dimesnions with the most quickly changing 
**	   indices.
**
****************************************************************/
static void
test_shape_same_dr__run_full_space_vs_slice_tests(void)
{
    hbool_t dim_selected[5];
    hbool_t expected_result;
    int i, j;
    int v, w, x, y, z;
    int test_num = 0;
    int small_rank;
    int large_rank;
    hsize_t edge_size = 10;

    for(large_rank = 1; large_rank <= 5; large_rank++) {
        for(small_rank = 1; small_rank <= large_rank; small_rank++) {
            v = 0;
            do {
                if(v == 0)
                    dim_selected[0] = FALSE;
                else
                    dim_selected[0] = TRUE;

                w = 0;
                do {
                    if(w == 0)
                        dim_selected[1] = FALSE;
                    else
                        dim_selected[1] = TRUE;

                    x = 0;
                    do {
                        if(x == 0)
                            dim_selected[2] = FALSE;
                        else
                            dim_selected[2] = TRUE;

                        y = 0;
                        do {
                            if(y == 0)
                                dim_selected[3] = FALSE;
                            else
                                dim_selected[3] = TRUE;

                            z = 0;
                            do {
                                if(z == 0)
                                    dim_selected[4] = FALSE;
                                else
                                    dim_selected[4] = TRUE;

                                /* compute the expected result: */
                                i = 0;
                                j = 4;
                                expected_result = TRUE;
                                while((i < small_rank) && expected_result) {
                                    if(!dim_selected[j])
                                        expected_result = FALSE;
                                    i++;
                                    j--;
                                } /* end while */

                                while((i < large_rank) && expected_result) {
                                    if(dim_selected[j])
                                        expected_result = FALSE;
                                    i++;
                                    j--;
                                } /* end while */


                                /* everything is set up -- run the tests */

                                test_shape_same_dr__full_space_vs_slice
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    0,
                                    edge_size,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__full_space_vs_slice
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    large_rank / 2,
                                    edge_size,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__full_space_vs_slice
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    large_rank - 1,
                                    edge_size,
                                    dim_selected,
                                    expected_result
                                );
                                    
                                z++;
                            } while((z < 2) && (large_rank >= 1));

                            y++;
                        } while((y < 2) && (large_rank >= 2));

                        x++;
                    } while((x < 2) && (large_rank >= 3));

                    w++;
                } while((w < 2) && (large_rank >= 4));

                v++;
            } while((v < 2) && (large_rank >= 5));
        } /* end for */
    } /* end for */

} /* test_shape_same_dr__run_full_space_vs_slice_tests() */


/****************************************************************
**
**  test_shape_same_dr__checkerboard(): Tests selection of a 
**	"checker board" subset of a full n-cube data space vs 
** 	a "checker board" n-dimensional slice of an m-cube (m > n).
**	in a call to H5S_select_shape_same().  
**
**	Note that this test does not require the n-cube and the 
**	n-dimensional slice to have the same rank (although
**	H5S_select_shape_same() should always return FALSE if 
**	they don't). 
**
**	Per Quincey's suggestion, only test up to 5 dimensional
**	spaces.
**
****************************************************************/
static void
test_shape_same_dr__checkerboard(int test_num,
                                 int small_rank,
                                 int large_rank,
                                 int offset,
                                 hsize_t edge_size,
                                 hsize_t checker_size,
                                 hbool_t dim_selected[],
                                 hbool_t expected_result)
{
    char	test_desc_0[128];
    char	test_desc_1[128];
    int         i;
    int		dims_selected = 0;
    hid_t	n_cube_0_sid;  /* the checker board selected 
                                * hyper cube 
                                */
    hid_t	n_cube_1_sid;  /* the hyper cube in which a 
                                * checkerboard slice is selected 
                                */
    hsize_t	dims[SS_DR_MAX_RANK];
    hsize_t	base_start[2];
    hsize_t	start[SS_DR_MAX_RANK];
    hsize_t *	start_ptr;
    hsize_t	base_stride[2];
    hsize_t	stride[SS_DR_MAX_RANK];
    hsize_t *	stride_ptr;
    hsize_t	base_count[2];
    hsize_t	count[SS_DR_MAX_RANK];
    hsize_t *	count_ptr;
    hsize_t	base_block[2];
    hsize_t	block[SS_DR_MAX_RANK];
    hsize_t *	block_ptr;
    htri_t	check;		/* Shape comparison return value */
    herr_t	ret;		/* Generic return value	*/

    HDassert( 0 < small_rank );
    HDassert( small_rank <= large_rank );
    HDassert( large_rank <= SS_DR_MAX_RANK );
    HDassert( 0 < checker_size );
    HDassert( checker_size <= edge_size ); 
    HDassert( edge_size <= 1000 ); 
    HDassert( 0 <= offset );
    HDassert( offset < (int)edge_size );

    for(i = SS_DR_MAX_RANK - large_rank; i < SS_DR_MAX_RANK; i++)
        if(dim_selected[i] == TRUE)
            dims_selected++;

    HDassert( dims_selected >= 0 );
    HDassert( dims_selected <= large_rank );

    sprintf(test_desc_0, 
              "\tcheckerboard n-cube slice through m-cube (n <= m) test %d.\n", 
              test_num);
    MESSAGE(7, (test_desc_0));

    /* This statement must be updated if SS_DR_MAX_RANK is changed */
    sprintf(test_desc_1, 
              "\tranks: %d/%d edge/chkr size: %d/%d offset: %d dim_selected: %d/%d/%d/%d/%d:%d.\n",
              small_rank, large_rank,
              (int)edge_size, (int)checker_size,
              offset,
              (int)dim_selected[0],
              (int)dim_selected[1],
              (int)dim_selected[2],
              (int)dim_selected[3],
              (int)dim_selected[4],
              dims_selected);
    MESSAGE(7, (test_desc_1));

    /* copy the edge size into the dims array */
    for(i = 0; i < SS_DR_MAX_RANK; i++)
        dims[i] = edge_size;

    /* Create the small n-cube */
    n_cube_0_sid = H5Screate_simple(small_rank, dims, NULL);
    CHECK(n_cube_0_sid, FAIL, "H5Screate_simple");

    /* Select a "checkerboard" pattern in the small n-cube.
     *
     * In the 1-D case, the "checkerboard" would look like this:
     *
     *		* * - - * * - - * *
     *
     * and in the 2-D case, it would look like this:
     *
     *		* * - - * * - - * *
     *          * * - - * * - - * *
     *          - - * * - - * * - -
     *          - - * * - - * * - -
     *		* * - - * * - - * *
     *          * * - - * * - - * *
     *          - - * * - - * * - -
     *          - - * * - - * * - -
     *		* * - - * * - - * *
     *          * * - - * * - - * *
     *
     * In both cases, asterisks indicate selected elements, 
     * and dashes indicate unselected elements.
     *
     * 3-D and 4-D ascii art is somewhat painful, so I'll
     * leave those selections to your imagination. :-)
     *
     * Note, that since the edge_size and checker_size are
     * parameters that are passed in, the selection need 
     * not look exactly like the selection shown above.
     * At present, the function allows checker sizes that 
     * are not even divisors of the edge size -- thus 
     * something like the following is also possible:
     *
     *		* * * - - - * * * -
     *		* * * - - - * * * -
     *		* * * - - - * * * -
     *          - - - * * * - - - *
     *          - - - * * * - - - *
     *          - - - * * * - - - *
     *		* * * - - - * * * -
     *		* * * - - - * * * -
     *		* * * - - - * * * -
     *          - - - * * * - - - *
     *
     * As the above pattern can't be selected in one 
     * call to H5Sselect_hyperslab(), and since the
     * values in the start, stride, count, and block
     * arrays will be repeated over all entries in 
     * the selected space case, and over all selected
     * dimensions in the selected hyperslab case, we
     * compute these values first and store them in 
     * in the base_start, base_stride, base_count, 
     * and base_block arrays.
     */

    base_start[0] = 0;
    base_start[1] = checker_size;

    base_stride[0] = 2 * checker_size;
    base_stride[1] = 2 * checker_size;

    /* Note that the following computation depends on the C99 
     * requirement that integer division discard any fraction 
     * (truncation towards zero) to function correctly. As we 
     * now require C99, this shouldn't be a problem, but noting
     * it may save us some pain if we are ever obliged to support
     * pre-C99 compilers again.
     */

    base_count[0] = edge_size / (checker_size * 2);
    if((edge_size % (checker_size * 2)) > 0)
	base_count[0]++;

    base_count[1] = (edge_size - checker_size) / (checker_size * 2);
    if(((edge_size - checker_size) % (checker_size * 2)) > 0)
        base_count[1]++;

    base_block[0] = checker_size;
    base_block[1] = checker_size;

    /* now setup start, stride, count, and block arrays for 
     * the first call to H5Sselect_hyperslab().
     */
    for(i = 0; i < SS_DR_MAX_RANK; i++) {
        start[i]  = base_start[0];
        stride[i] = base_stride[0];
        count[i]  = base_count[0];
        block[i]  = base_block[0];
    } /* end for */

    ret = H5Sselect_hyperslab(n_cube_0_sid, H5S_SELECT_SET,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* if small_rank == 1, or if edge_size == checker_size, we 
     * are done, as either there is no added dimension in which
     * to place offset selected "checkers".
     * 
     * Otherwise, set up start, stride, count and block, and
     * make the additional selection.
     */

    if((small_rank > 1) && (checker_size < edge_size)) {
        for(i = 0; i < SS_DR_MAX_RANK; i++) {
            start[i]  = base_start[1];
            stride[i] = base_stride[1];
            count[i]  = base_count[1];
            block[i]  = base_block[1];
        } /* end for */

        ret = H5Sselect_hyperslab(n_cube_0_sid, H5S_SELECT_OR,
                                  start, stride, count, block);
        CHECK(ret, FAIL, "H5Sselect_hyperslab");
    } /* end if */

    /* Wierdness alert:
     *
     * Some how, it seems that selections can extend beyond the 
     * boundaries of the target data space -- hence the following
     * code to manually clip the selection back to the data space
     * proper.
     */
    for(i = 0; i < SS_DR_MAX_RANK; i++) {
        start[i]  = 0;
        stride[i] = edge_size;
        count[i]  = 1;
        block[i]  = edge_size;
    } /* end for */

    ret = H5Sselect_hyperslab(n_cube_0_sid, H5S_SELECT_AND,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    /* Create the large n-cube */
    n_cube_1_sid = H5Screate_simple(large_rank, dims, NULL);
    CHECK(n_cube_1_sid, FAIL, "H5Screate_simple");


    /* Now select the checkerboard selection in the (possibly larger) n-cube.
     * 
     * Since we have already calculated the base start, stride, count, 
     * and block, re-use the values in setting up start, stride, count,
     * and block.
     */
    for(i = 0; i < SS_DR_MAX_RANK; i++) {
        if(dim_selected[i]) {
            start[i]  = base_start[0];
            stride[i] = base_stride[0];
            count[i]  = base_count[0];
            block[i]  = base_block[0];
        } /* end if */
        else {
            start[i]  = (hsize_t)offset;
            stride[i] = (hsize_t)(2 * edge_size);
            count[i]  = 1;
            block[i]  = 1;
        } /* end else */
    } /* end for */

    /* Since large rank may be less than SS_DR_MAX_RANK, we may not
     * use the entire start, stride, count, and block arrays.  This
     * is a problem, since it is inconvenient to set up the dim_selected
     * array to reflect the large rank, and thus if large_rank <
     * SS_DR_MAX_RANK, we need to hide the lower index entries
     * from H5Sselect_hyperslab().
     *
     * Do this by setting up pointers to the first valid entry in start,
     * stride, count, and block below, and pass these pointers in
     * to H5Sselect_hyperslab() instead of the array base addresses.
     */

    i = SS_DR_MAX_RANK - large_rank;
    HDassert( i >= 0 );

    start_ptr  = &(start[i]);
    stride_ptr = &(stride[i]);
    count_ptr  = &(count[i]);
    block_ptr  = &(block[i]);

    /* select the hyper slab */
    ret = H5Sselect_hyperslab(n_cube_1_sid, H5S_SELECT_SET,
                              start_ptr, stride_ptr, count_ptr, block_ptr);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* As before, if the number of dimensions selected is less than or 
     * equal to 1, or if edge_size == checker_size, we are done, as 
     * either there is no added dimension in which to place offset selected 
     * "checkers", or the hyperslab is completely occupied by one 
     * "checker".
     *
     * Otherwise, set up start, stride, count and block, and
     * make the additional selection.
     */
    if((dims_selected > 1) && (checker_size < edge_size)) {
        for(i = 0; i < SS_DR_MAX_RANK; i++) {
            if(dim_selected[i]) {
                start[i]  = base_start[1];
                stride[i] = base_stride[1];
                count[i]  = base_count[1];
                block[i]  = base_block[1];
            } /* end if */
            else {
                start[i]  = (hsize_t)offset;
                stride[i] = (hsize_t)(2 * edge_size);
                count[i]  = 1;
                block[i]  = 1;
            } /* end else */
        } /* end for */

        ret = H5Sselect_hyperslab(n_cube_1_sid, H5S_SELECT_OR,
                                  start_ptr, stride_ptr, count_ptr, block_ptr);
        CHECK(ret, FAIL, "H5Sselect_hyperslab");
    } /* end if */


    /* Wierdness alert:
     *
     * Again, it seems that selections can extend beyond the 
     * boundaries of the target data space -- hence the following
     * code to manually clip the selection back to the data space
     * proper.
     */
    for(i = 0; i < SS_DR_MAX_RANK; i++) {
        start[i]  = 0;
        stride[i] = edge_size;
        count[i]  = 1;
        block[i]  = edge_size;
    } /* end for */

    ret = H5Sselect_hyperslab(n_cube_1_sid, H5S_SELECT_AND,
                              start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* setup is done -- run the test: */
    check = H5S_select_shape_same_test(n_cube_0_sid, n_cube_1_sid);
    VERIFY(check, expected_result, "test_shape_same_dr__checkerboard");


    /* Close dataspaces */
    ret = H5Sclose(n_cube_0_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(n_cube_1_sid);
    CHECK(ret, FAIL, "H5Sclose");

}   /* test_shape_same_dr__checkerboard() */


/****************************************************************
**
**  test_shape_same_dr__run_checkerboard_tests(): 
**
**	In this set of tests, we test H5S_select_shape_same() 
**      with a "checkerboard" selection of 1, 2, 3, and 4 cubes as 
**      one parameter, and 1, 2, 3, and 4 dimensional checkerboard 
**      slices through a n-cube of rank no more than 5 (and at 
**      least the rank of the slice).  
**
**      All the n-cubes will have lengths of the same size, so 
**      H5S_select_shape_same() should return true iff:
**
**      1) the rank of the n cube equals the number of dimensions 
**         selected in the checker board slice through the m-cube 
**         (m >= n).
**
**      2) The dimensions selected in the checkerboard slice 
**         through the m-cube are the dimensions with the most 
**         quickly changing indices.
**
****************************************************************/
static void
test_shape_same_dr__run_checkerboard_tests(void)
{
    hbool_t dim_selected[5];
    hbool_t expected_result;
    int i, j;
    int v, w, x, y, z;
    int test_num = 0;
    int small_rank;
    int large_rank;

    for(large_rank = 1; large_rank <= 5; large_rank++) {
        for(small_rank = 1; small_rank <= large_rank; small_rank++) {
            v = 0;
            do {
                if(v == 0)
                    dim_selected[0] = FALSE;
                else
                    dim_selected[0] = TRUE;

                w = 0;
                do {
                    if(w == 0)
                        dim_selected[1] = FALSE;
                    else
                        dim_selected[1] = TRUE;

                    x = 0;
                    do {
                        if(x == 0)
                            dim_selected[2] = FALSE;
                        else
                            dim_selected[2] = TRUE;

                        y = 0;
                        do {
                            if(y == 0)
                                dim_selected[3] = FALSE;
                            else
                                dim_selected[3] = TRUE;

                            z = 0;
                            do {
                                if(z == 0)
                                    dim_selected[4] = FALSE;
                                else
                                    dim_selected[4] = TRUE;
                                

                                /* compute the expected result: */
                                i = 0;
                                j = 4;
                                expected_result = TRUE;
                                while((i < small_rank) && expected_result) {
                                    if(!dim_selected[j])
                                        expected_result = FALSE;
                                    i++;
                                    j--;
                                } /* end while */

                                while((i < large_rank) && expected_result) {
                                    if(dim_selected[j])
                                        expected_result = FALSE;
                                    i++;
                                    j--;
                                } /* end while */


                                /* everything is set up -- run the tests */

                                /* run test with edge size 16, checker
                                 * size 1, and a variety of offsets
                                 */
                                test_shape_same_dr__checkerboard
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* offset */       0,
                                    /* edge_size */    16,
                                    /* checker_size */ 1,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__checkerboard
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* offset */       5,
                                    /* edge_size */    16,
                                    /* checker_size */ 1,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__checkerboard
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* offset */       15,
                                    /* edge_size */    16,
                                    /* checker_size */ 1,
                                    dim_selected,
                                    expected_result
                                );


                                /* run test with edge size 10, checker
                                 * size 2, and a variety of offsets
                                 */
                                test_shape_same_dr__checkerboard
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* offset */       0,
                                    /* edge_size */    10,
                                    /* checker_size */ 2,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__checkerboard
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* offset */       5,
                                    /* edge_size */    10,
                                    /* checker_size */ 2,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__checkerboard
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* offset */       9,
                                    /* edge_size */    10,
                                    /* checker_size */ 2,
                                    dim_selected,
                                    expected_result
                                );


                                /* run test with edge size 10, checker
                                 * size 3, and a variety of offsets
                                 */
                                test_shape_same_dr__checkerboard
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* offset */       0,
                                    /* edge_size */    10,
                                    /* checker_size */ 3,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__checkerboard
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* offset */       5,
                                    /* edge_size */    10,
                                    /* checker_size */ 3,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__checkerboard
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* offset */       9,
                                    /* edge_size */    10,
                                    /* checker_size */ 3,
                                    dim_selected,
                                    expected_result
                                );


                                /* run test with edge size 8, checker
                                 * size 8, and a variety of offsets
                                 */
                                test_shape_same_dr__checkerboard
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* offset */       0,
                                    /* edge_size */    8,
                                    /* checker_size */ 8,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__checkerboard
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* offset */       4,
                                    /* edge_size */    8,
                                    /* checker_size */ 8,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__checkerboard
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* offset */       7,
                                    /* edge_size */    8,
                                    /* checker_size */ 8,
                                    dim_selected,
                                    expected_result
                                );

                                z++;
                            } while((z < 2) && (large_rank >= 1));

                            y++;
                        } while((y < 2) && (large_rank >= 2));

                        x++;
                    } while((x < 2) && (large_rank >= 3));

                    w++;
                } while((w < 2) && (large_rank >= 4));

                v++;
            } while((v < 2) && (large_rank >= 5));
        } /* end for */
    } /* end for */

} /* test_shape_same_dr__run_checkerboard_tests() */


/****************************************************************
**
**  test_shape_same_dr__irregular(): 
**
**	Tests selection of an "irregular" subset of a full 
**      n-cube data space vs an identical "irregular" subset
**	of an n-dimensional slice of an m-cube (m > n).
**	in a call to H5S_select_shape_same().  
**
**	Note that this test does not require the n-cube and the 
**	n-dimensional slice to have the same rank (although
**	H5S_select_shape_same() should always return FALSE if 
**	they don't). 
**
****************************************************************/
static void
test_shape_same_dr__irregular(int test_num,
                              int small_rank,
                              int large_rank,
                              int pattern_offset,
                              int slice_offset,
                              hbool_t dim_selected[],
                              hbool_t expected_result)
{
    char	test_desc_0[128];
    char	test_desc_1[128];
    int		edge_size = 10;
    int         i;
    int         j;
    int         k;
    int		dims_selected = 0;
    hid_t	n_cube_0_sid;  /* the hyper cube containing
                                * an irregular selection
                                */
    hid_t	n_cube_1_sid;  /* the hyper cube in which a 
                                * slice contains an irregular
                                * selection.
                                */
    hsize_t	dims[SS_DR_MAX_RANK];
    hsize_t	start_0[SS_DR_MAX_RANK]  = { 2,  2,  2,  2,  5};
    hsize_t	stride_0[SS_DR_MAX_RANK] = {10, 10, 10, 10, 10};
    hsize_t	count_0[SS_DR_MAX_RANK]  = { 1,  1,  1,  1,  1};
    hsize_t     block_0[SS_DR_MAX_RANK]  = { 2,  2,  2,  2,  3};

    hsize_t	start_1[SS_DR_MAX_RANK]  = { 2,  2,  2,  5,  2};
    hsize_t	stride_1[SS_DR_MAX_RANK] = {10, 10, 10, 10, 10};
    hsize_t	count_1[SS_DR_MAX_RANK]  = { 1,  1,  1,  1,  1};
    hsize_t     block_1[SS_DR_MAX_RANK]  = { 2,  2,  2,  3,  2};

    hsize_t	start_2[SS_DR_MAX_RANK]  = { 2,  2,  5,  2,  2};
    hsize_t	stride_2[SS_DR_MAX_RANK] = {10, 10, 10, 10, 10};
    hsize_t	count_2[SS_DR_MAX_RANK]  = { 1,  1,  1,  1,  1};
    hsize_t     block_2[SS_DR_MAX_RANK]  = { 2,  2,  3,  2,  2};

    hsize_t	start_3[SS_DR_MAX_RANK]  = { 2,  5,  2,  2,  2};
    hsize_t	stride_3[SS_DR_MAX_RANK] = {10, 10, 10, 10, 10};
    hsize_t	count_3[SS_DR_MAX_RANK]  = { 1,  1,  1,  1,  1};
    hsize_t     block_3[SS_DR_MAX_RANK]  = { 2,  3,  2,  2,  2};

    hsize_t	start_4[SS_DR_MAX_RANK]  = { 5,  2,  2,  2,  2};
    hsize_t	stride_4[SS_DR_MAX_RANK] = {10, 10, 10, 10, 10};
    hsize_t	count_4[SS_DR_MAX_RANK]  = { 1,  1,  1,  1,  1};
    hsize_t     block_4[SS_DR_MAX_RANK]  = { 3,  2,  2,  2,  2};

    hsize_t	clip_start[SS_DR_MAX_RANK]  = { 0,  0,  0,  0,  0};
    hsize_t	clip_stride[SS_DR_MAX_RANK] = {10, 10, 10, 10, 10};
    hsize_t	clip_count[SS_DR_MAX_RANK]  = { 1,  1,  1,  1,  1};
    hsize_t     clip_block[SS_DR_MAX_RANK]  = {10, 10, 10, 10, 10};


    hsize_t	*(starts[SS_DR_MAX_RANK]) = 
                	{start_0, start_1, start_2, start_3, start_4};
    hsize_t     *(strides[SS_DR_MAX_RANK]) =
                	{stride_0, stride_1, stride_2, stride_3, stride_4};
    hsize_t     *(counts[SS_DR_MAX_RANK]) =
                	{count_0, count_1, count_2, count_3, count_4};
    hsize_t     *(blocks[SS_DR_MAX_RANK]) =
                	{block_0, block_1, block_2, block_3, block_4};

    hsize_t	start[SS_DR_MAX_RANK];
    hsize_t *	start_ptr;
    hsize_t	stride[SS_DR_MAX_RANK];
    hsize_t *	stride_ptr;
    hsize_t	count[SS_DR_MAX_RANK];
    hsize_t *	count_ptr;
    hsize_t	block[SS_DR_MAX_RANK];
    hsize_t *	block_ptr;
    htri_t	check;		/* Shape comparison return value */
    herr_t	ret;		/* Generic return value	*/

    HDassert( 0 < small_rank );
    HDassert( small_rank <= large_rank );
    HDassert( large_rank <= SS_DR_MAX_RANK );
    HDassert( 9 <= edge_size ); 
    HDassert( edge_size <= 1000 ); 
    HDassert( 0 <= slice_offset );
    HDassert( slice_offset < edge_size );
    HDassert( -2 <= pattern_offset );
    HDassert( pattern_offset <= 2 );

    for(i = SS_DR_MAX_RANK - large_rank; i < SS_DR_MAX_RANK; i++)
        if(dim_selected[i] == TRUE)
            dims_selected++;

    HDassert( dims_selected >= 0 );
    HDassert( dims_selected <= large_rank );

    sprintf(test_desc_0, 
              "\tirregular sub set of n-cube slice through m-cube (n <= m) test %d.\n", 
              test_num);
    MESSAGE(7, (test_desc_0));

    /* This statement must be updated if SS_DR_MAX_RANK is changed */
    sprintf(test_desc_1, 
              "\tranks: %d/%d edge: %d s/p offset: %d/%d dim_selected: %d/%d/%d/%d/%d:%d.\n",
              small_rank, large_rank,
              edge_size, 
              slice_offset, pattern_offset,
              (int)dim_selected[0],
              (int)dim_selected[1],
              (int)dim_selected[2],
              (int)dim_selected[3],
              (int)dim_selected[4],
              dims_selected);
    MESSAGE(7, (test_desc_1));

    /* copy the edge size into the dims array */
    for(i = 0; i < SS_DR_MAX_RANK; i++)
        dims[i] = (hsize_t)edge_size;

    /* Create the small n-cube */
    n_cube_0_sid = H5Screate_simple(small_rank, dims, NULL);
    CHECK(n_cube_0_sid, FAIL, "H5Screate_simple");

    /* Select an "irregular" pattern in the small n-cube.  This
     * pattern can be though of a set of four 3 x 2 x 2 X 2 
     * four dimensional prisims, each parallel to one of the 
     * axies and none of them intersecting with the other. 
     *
     * In the lesser dimensional cases, this 4D pattern is 
     * projected onto the lower dimensional space.
     *
     * In the 1-D case, the projection of the pattern looks
     * like this:
     *
     *		  - - * * - * * * - -
     *            0 1 2 3 4 5 6 7 8 9 x
     *
     * and in the 2-D case, it would look like this:
     *
     *
     *		y
     *		9 - - - - - - - - - -
     *		8 - - - - - - - - - -
     *		7 - - * * - - - - - -
     *		6 - - * * - - - - - -
     *		5 - - * * - - - - - -
     *		4 - - - - - - - - - -
     *		3 - - * * - * * * - -
     *		2 - - * * - * * * - -
     *		1 - - - - - - - - - -
     *	 	0 - - - - - - - - - -
     *            0 1 2 3 4 5 6 7 8 9 x
     *
     * In both cases, asterisks indicate selected elements, 
     * and dashes indicate unselected elements.
     *
     * Note that is this case, since the edge size is fixed,
     * the pattern does not change.  However, we do use the 
     * displacement parameter to allow it to be moved around 
     * within the n-cube or hyper slab.
     */

    /* first, ensure that the small n-cube has no selection */
    ret = H5Sselect_none(n_cube_0_sid);
    CHECK(ret, FAIL, "H5Sselect_none");

    /* now, select the irregular pattern */
    for(i = 0; i < SS_DR_MAX_RANK; i++) {
        ret = H5Sselect_hyperslab(n_cube_0_sid, H5S_SELECT_OR,
                                  starts[i], strides[i], counts[i], blocks[i]);
        CHECK(ret, FAIL, "H5Sselect_hyperslab");
    } /* end for */

    /* finally, clip the selection to ensure that it lies fully 
     * within the n-cube.
     */
    ret = H5Sselect_hyperslab(n_cube_0_sid, H5S_SELECT_AND,
                              clip_start, clip_stride, clip_count, clip_block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    /* Create the large n-cube */
    n_cube_1_sid = H5Screate_simple(large_rank, dims, NULL);
    CHECK(n_cube_1_sid, FAIL, "H5Screate_simple");

    /* Ensure that the large n-cube has no selection */
    H5Sselect_none(n_cube_1_sid);
    CHECK(ret, FAIL, "H5Sselect_none");


    /* Since large rank may be less than SS_DR_MAX_RANK, we may not
     * use the entire start, stride, count, and block arrays.  This
     * is a problem, since it is inconvenient to set up the dim_selected
     * array to reflect the large rank, and thus if large_rank <
     * SS_DR_MAX_RANK, we need to hide the lower index entries
     * from H5Sselect_hyperslab().
     *
     * Do this by setting up pointers to the first valid entry in start,
     * stride, count, and block below, and pass these pointers in
     * to H5Sselect_hyperslab() instead of the array base addresses.
     */

    i = SS_DR_MAX_RANK - large_rank;
    HDassert( i >= 0 );

    start_ptr  = &(start[i]);
    stride_ptr = &(stride[i]);
    count_ptr  = &(count[i]);
    block_ptr  = &(block[i]);


    /* Now select the irregular selection in the (possibly larger) n-cube.
     * 
     * Basic idea is to project the pattern used in the smaller n-cube 
     * onto the dimensions selected in the larger n-cube, with the displacement
     * specified.
     */
    for(i = 0; i < SS_DR_MAX_RANK; i++) {
        j = 0;
        for(k = 0; k < SS_DR_MAX_RANK; k++) {
            if(dim_selected[k]) {
                start[k]  = (starts[i])[j] + (hsize_t)pattern_offset;
                stride[k] = (strides[i])[j];
                count[k]  = (counts[i])[j];
                block[k]  = (blocks[i])[j];
                j++;
            } /* end if */
            else {
                start[k]  = (hsize_t)slice_offset;
                stride[k] = (hsize_t)(2 * edge_size);
                count[k]  = 1;
                block[k]  = 1;
            } /* end else */
        } /* end for */

        /* select the hyper slab */
        ret = H5Sselect_hyperslab(n_cube_1_sid, H5S_SELECT_OR,
                              start_ptr, stride_ptr, count_ptr, block_ptr);
        CHECK(ret, FAIL, "H5Sselect_hyperslab");
    } /* end for */

    /* it is possible that the selection extends beyond the data space.
     * clip the selection to ensure that it doesn't.
     */
    ret = H5Sselect_hyperslab(n_cube_1_sid, H5S_SELECT_AND,
                              clip_start, clip_stride, clip_count, clip_block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    /* setup is done -- run the test: */
    check = H5S_select_shape_same_test(n_cube_0_sid, n_cube_1_sid);
    VERIFY(check, expected_result, "test_shape_same_dr__checkerboard");


    /* Close dataspaces */
    ret = H5Sclose(n_cube_0_sid);
    CHECK(ret, FAIL, "H5Sclose");

    ret = H5Sclose(n_cube_1_sid);
    CHECK(ret, FAIL, "H5Sclose");

}   /* test_shape_same_dr__irregular() */


/****************************************************************
**
**  test_shape_same_dr__run_irregular_tests(): 
**
**	In this set of tests, we test H5S_select_shape_same() 
**      with an "irregular" subselection of 1, 2, 3, and 4 cubes as 
**      one parameter, and irregular subselections of 1, 2, 3, 
**      and 4 dimensional slices through a n-cube of rank no more 
**      than 5 (and at least the rank of the slice) as the other.  
**      Note that the "irregular" selection may be offset between 
**	the n-cube and the slice.
**
**      All the irregular selections will be identical (modulo rank)
**      so H5S_select_shape_same() should return true iff:
**
**      1) the rank of the n cube equals the number of dimensions 
**         selected in the irregular slice through the m-cube 
**         (m >= n).
**
**      2) The dimensions selected in the irregular slice 
**         through the m-cube are the dimensions with the most 
**         quickly changing indices.
**
****************************************************************/
static void
test_shape_same_dr__run_irregular_tests(void)
{
    hbool_t dim_selected[5];
    hbool_t expected_result;
    int i, j;
    int v, w, x, y, z;
    int test_num = 0;
    int small_rank;
    int large_rank;

    for(large_rank = 1; large_rank <= 5; large_rank++) {
        for(small_rank = 1; small_rank <= large_rank; small_rank++) {
            v = 0;
            do {
                if(v == 0)
                    dim_selected[0] = FALSE;
                else
                    dim_selected[0] = TRUE;

                w = 0;
                do {
                    if(w == 0)
                        dim_selected[1] = FALSE;
                    else
                        dim_selected[1] = TRUE;

                    x = 0;
                    do {
                        if(x == 0)
                            dim_selected[2] = FALSE;
                        else
                            dim_selected[2] = TRUE;

                        y = 0;
                        do {
                            if(y == 0)
                                dim_selected[3] = FALSE;
                            else
                                dim_selected[3] = TRUE;

                            z = 0;
                            do {
                                if(z == 0)
                                    dim_selected[4] = FALSE;
                                else
                                    dim_selected[4] = TRUE;
                                

                                /* compute the expected result: */
                                i = 0;
                                j = 4;
                                expected_result = TRUE;
                                while((i < small_rank) && expected_result) {
                                    if(!dim_selected[j])
                                        expected_result = FALSE;
                                    i++;
                                    j--;
                                } /* end while */

                                while((i < large_rank) && expected_result) {
                                    if(dim_selected[j])
                                        expected_result = FALSE;
                                    i++;
                                    j--;
                                } /* end while */


                                /* everything is set up -- run the tests */

                                test_shape_same_dr__irregular
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* pattern_offset */ -2,
                                    /* slice_offset */ 0,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__irregular
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* pattern_offset */ -2,
                                    /* slice_offset */ 4,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__irregular
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* pattern_offset */ -2,
                                    /* slice_offset */ 9,
                                    dim_selected,
                                    expected_result
                                );


                                test_shape_same_dr__irregular
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* pattern_offset */ 0,
                                    /* slice_offset */ 0,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__irregular
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* pattern_offset */ 0,
                                    /* slice_offset */ 6,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__irregular
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* pattern_offset */ 0,
                                    /* slice_offset */ 9,
                                    dim_selected,
                                    expected_result
                                );


                                test_shape_same_dr__irregular
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* pattern_offset */ 2,
                                    /* slice_offset */ 0,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__irregular
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* pattern_offset */ 2,
                                    /* slice_offset */ 5,
                                    dim_selected,
                                    expected_result
                                );

                                test_shape_same_dr__irregular
                                (
                                    test_num++,
                                    small_rank,
                                    large_rank,
                                    /* pattern_offset */ 2,
                                    /* slice_offset */ 9,
                                    dim_selected,
                                    expected_result
                                );

                                z++;
                            } while((z < 2) && (large_rank >= 1));

                            y++;
                        } while((y < 2) && (large_rank >= 2));

                        x++;
                    } while((x < 2) && (large_rank >= 3));

                    w++;
                } while((w < 2) && (large_rank >= 4));

                v++;
            } while((v < 2 ) && (large_rank >= 5));
        } /* end for */
    } /* end for */

} /* test_shape_same_dr__run_irregular_tests() */


/****************************************************************
**
**  test_shape_same_dr(): Tests selections on dataspace with 
**      different ranks, to verify that "shape same" routine 
**	is now handling this case correctly.
**
****************************************************************/
static void
test_shape_same_dr(void)
{
    /* Output message about test being performed */
    MESSAGE(6, ("Testing Same Shape/Different Rank Comparisons\n"));


    /* first run some smoke checks */
    test_shape_same_dr__smoke_check_1();
    test_shape_same_dr__smoke_check_2();
    test_shape_same_dr__smoke_check_3();
    test_shape_same_dr__smoke_check_4();


    /* now run more intensive tests. */
    test_shape_same_dr__run_full_space_vs_slice_tests();
    test_shape_same_dr__run_checkerboard_tests();
    test_shape_same_dr__run_irregular_tests();

}   /* test_shape_same_dr() */


/****************************************************************
**
**  test_space_rebuild(): Tests selection rebuild routine,
**  We will test whether selection in span-tree form can be rebuilt
**  into a regular selection.
**
**
****************************************************************/
static void
test_space_rebuild(void)
{
   /* regular space IDs in span-tree form */
   hid_t sid_reg1,sid_reg2,sid_reg3,sid_reg4,sid_reg5;

   /* Original regular Space IDs */
   hid_t sid_reg_ori1,sid_reg_ori2,sid_reg_ori3,sid_reg_ori4,sid_reg_ori5;

   /* Irregular space IDs */
   hid_t sid_irreg1,sid_irreg2,sid_irreg3,sid_irreg4,sid_irreg5;

   /* rebuild status state */
   htri_t rebuild_stat,rebuild_check;
   herr_t ret;

   /* dimensions of rank 1 to rank 5 */
   hsize_t dims1[] ={SPACERE1_DIM0};
   hsize_t dims2[] ={SPACERE2_DIM0,SPACERE2_DIM1};
   hsize_t dims3[] ={SPACERE3_DIM0,SPACERE3_DIM1,SPACERE3_DIM2};
   hsize_t dims4[] ={SPACERE4_DIM0,SPACERE4_DIM1,SPACERE4_DIM2,SPACERE4_DIM3};
   hsize_t dims5[] ={SPACERE5_DIM0,SPACERE5_DIM1,SPACERE5_DIM2,SPACERE5_DIM3,SPACERE5_DIM4};

   /* The start of the hyperslab */
   hsize_t start1[SPACERE1_RANK],start2[SPACERE2_RANK],
           start3[SPACERE3_RANK],start4[SPACERE4_RANK],
           start5[SPACERE5_RANK];

   /* The stride of the hyperslab */
   hsize_t stride1[SPACERE1_RANK],stride2[SPACERE2_RANK],
           stride3[SPACERE3_RANK],stride4[SPACERE4_RANK],
           stride5[SPACERE5_RANK];

   /* The number of blocks for the hyperslab */
   hsize_t count1[SPACERE1_RANK],count2[SPACERE2_RANK],
           count3[SPACERE3_RANK],count4[SPACERE4_RANK],
           count5[SPACERE5_RANK];

   /* The size of each block for the hyperslab */
   hsize_t block1[SPACERE1_RANK],block2[SPACERE2_RANK],
           block3[SPACERE3_RANK],block4[SPACERE4_RANK],
           block5[SPACERE5_RANK];

  /* Declarations for special test of rebuild */
   hid_t sid_spec;


    /* Output message about test being performed */
    MESSAGE(6, ("Testing functionality to rebuild regular hyperslab selection\n"));


    MESSAGE(7, ("Testing functionality to rebuild 1-D hyperslab selection\n"));

    /* Create 1-D dataspace */
    sid_reg1       = H5Screate_simple(SPACERE1_RANK,dims1,NULL);
    sid_reg_ori1   = H5Screate_simple(SPACERE1_RANK,dims1,NULL);

    /* Build up the original one dimensional regular selection */
    start1[0]  = 1;
    count1[0]  = 3;
    stride1[0] = 5;
    block1[0]  = 4;
    ret = H5Sselect_hyperslab(sid_reg_ori1,H5S_SELECT_SET,start1,stride1,count1,block1);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Build up one dimensional regular selection with H5_SELECT_OR,
       inside HDF5, it will be treated as an irregular selection. */

    start1[0]  = 1;
    count1[0]  = 2;
    stride1[0] = 5;
    block1[0]  = 4;
    ret = H5Sselect_hyperslab(sid_reg1,H5S_SELECT_SET,start1,stride1,count1,block1);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start1[0]  = 11;
    count1[0]  = 1;
    stride1[0] = 5;
    block1[0]  = 4;
    ret = H5Sselect_hyperslab(sid_reg1,H5S_SELECT_OR,start1,stride1,count1,block1);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    rebuild_stat = FALSE;
    rebuild_stat = H5S_get_rebuild_status_test(sid_reg1);
    assert(rebuild_stat!=FAIL);
    /* In this case, rebuild_stat should be TRUE. */
    if(!rebuild_stat){
       ret = FAIL;
       CHECK(ret,FAIL,"H5S_hyper_rebuild");
    }
    else {
       /* In this case, rebuild_check should be TRUE. */
       rebuild_check = H5S_select_shape_same_test(sid_reg1,sid_reg_ori1);
       CHECK(rebuild_check,FALSE,"H5S_hyper_rebuild");
    }

    /* For irregular hyperslab */
    sid_irreg1     = H5Screate_simple(SPACERE1_RANK,dims1,NULL);

    /* Build up one dimensional irregular selection with H5_SELECT_OR */
    start1[0]  = 1;
    count1[0]  = 2;
    stride1[0] = 5;
    block1[0]  = 4;
    ret = H5Sselect_hyperslab(sid_irreg1,H5S_SELECT_SET,start1,stride1,count1,block1);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start1[0]  = 12; /* Just one position switch */
    count1[0]  = 1;
    stride1[0] = 5;
    block1[0]  = 4;
    ret = H5Sselect_hyperslab(sid_irreg1,H5S_SELECT_OR,start1,stride1,count1,block1);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    rebuild_stat = TRUE;
    rebuild_stat = H5S_get_rebuild_status_test(sid_irreg1);
    assert(rebuild_stat!=FAIL);
    /* In this case, rebuild_stat should be FALSE. */
    if(rebuild_stat){
       ret = FAIL;
       CHECK(ret,FAIL,"H5S_hyper_rebuild");
    }/* No need to do shape comparision */


    MESSAGE(7, ("Testing functionality to rebuild 2-D hyperslab selection\n"));
    /* Create 2-D dataspace */
    sid_reg2       = H5Screate_simple(SPACERE2_RANK,dims2,NULL);
    sid_reg_ori2   = H5Screate_simple(SPACERE2_RANK,dims2,NULL);

    /* Build up the original two dimensional regular selection */
    start2[0]  = 2;
    count2[0]  = 2;
    stride2[0] = 7;
    block2[0]  = 5;
    start2[1]  = 1;
    count2[1]  = 3;
    stride2[1] = 3;
    block2[1]  = 2;

    ret = H5Sselect_hyperslab(sid_reg_ori2,H5S_SELECT_SET,start2,stride2,count2,block2);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Build up two dimensional regular selection with H5_SELECT_OR, inside HDF5,
       it will be treated as an irregular selection. */

    start2[1]  = 1;
    count2[1]  = 2;
    stride2[1] = 3;
    block2[1]  = 2;

    ret = H5Sselect_hyperslab(sid_reg2,H5S_SELECT_SET,start2,stride2,count2,block2);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start2[1]  = 7; /* 7 = start(1) + count(2) * stride(3) */
    count2[1]  = 1;
    stride2[1] = 3;
    block2[1]  = 2;

    ret = H5Sselect_hyperslab(sid_reg2,H5S_SELECT_OR,start2,stride2,count2,block2);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    rebuild_stat = FALSE;
    rebuild_stat = H5S_get_rebuild_status_test(sid_reg2);
    assert(rebuild_stat!=FAIL);
    /* In this case, rebuild_stat should be TRUE. */
    if(!rebuild_stat){
       ret = FAIL;
       CHECK(ret,FAIL,"H5S_hyper_rebuild");
    }
    else {
       /* In this case, rebuild_check should be TRUE. */
       rebuild_check = H5S_select_shape_same_test(sid_reg2,sid_reg_ori2);
       CHECK(rebuild_check,FALSE,"H5S_hyper_rebuild");
    }

    /* 2-D irregular case */
    sid_irreg2     = H5Screate_simple(SPACERE2_RANK,dims2,NULL);
    /* Build up two dimensional irregular selection with H5_SELECT_OR */

    start2[0]  = 2;
    count2[0]  = 2;
    stride2[0] = 7;
    block2[0]  = 5;
    start2[1]  = 1;
    count2[1]  = 1;
    stride2[1] = 3;
    block2[1]  = 2;
    ret = H5Sselect_hyperslab(sid_irreg2,H5S_SELECT_SET,start2,stride2,count2,block2);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start2[1]  = 4;
    count2[1]  = 2;
    stride2[1] = 4;
    block2[1]  = 3; /* Just add one element for the block */

    ret = H5Sselect_hyperslab(sid_irreg2,H5S_SELECT_OR,start2,stride2,count2,block2);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    rebuild_stat = TRUE;
    rebuild_stat = H5S_get_rebuild_status_test(sid_irreg2);
    assert(rebuild_stat!=FAIL);
    /* In this case, rebuild_stat should be FALSE. */
    if(rebuild_stat){
       ret = FAIL;
       CHECK(ret,FAIL,"H5S_hyper_rebuild");
    }/* No need to do shape comparision */

    MESSAGE(7, ("Testing functionality to rebuild 3-D hyperslab selection\n"));

    /* Create 3-D dataspace */
    sid_reg3       = H5Screate_simple(SPACERE3_RANK,dims3,NULL);
    sid_reg_ori3   = H5Screate_simple(SPACERE3_RANK,dims3,NULL);

    /* Build up the original three dimensional regular selection */
    start3[0]  = 2;
    count3[0]  = 2;
    stride3[0] = 3;
    block3[0]  = 2;
    start3[1]  = 1;
    count3[1]  = 3;
    stride3[1] = 3;
    block3[1]  = 2;

    start3[2]  = 1;
    count3[2]  = 2;
    stride3[2] = 4;
    block3[2]  = 2;


    ret = H5Sselect_hyperslab(sid_reg_ori3,H5S_SELECT_SET,start3,stride3,count3,block3);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Build up three dimensional regular selection with H5_SELECT_OR, inside HDF5,
       it will be treated as an irregular selection. */
    start3[2]  = 1;
    count3[2]  = 1;
    stride3[2] = 4;
    block3[2]  = 2;

    ret = H5Sselect_hyperslab(sid_reg3,H5S_SELECT_SET,start3,stride3,count3,block3);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start3[2]  = 5;
    count3[2]  = 1;
    stride3[2] = 4;
    block3[2]  = 2;

    ret = H5Sselect_hyperslab(sid_reg3,H5S_SELECT_OR,start3,stride3,count3,block3);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    rebuild_stat = FALSE;
    rebuild_stat = H5S_get_rebuild_status_test(sid_reg3);
    assert(rebuild_stat!=FAIL);

    /* In this case, rebuild_stat should be TRUE. */
    if(!rebuild_stat){
       ret = FAIL;
       CHECK(ret,FAIL,"H5S_hyper_rebuild");
    }
    else {
       /* In this case, rebuild_check should be TRUE. */
       rebuild_check = H5S_select_shape_same_test(sid_reg3,sid_reg_ori3);
       CHECK(rebuild_check,FALSE,"H5S_hyper_rebuild");
    }

    sid_irreg3     = H5Screate_simple(SPACERE3_RANK,dims3,NULL);

    /* Build up three dimensional irregular selection with H5_SELECT_OR */
    start3[0]  = 2;
    count3[0]  = 2;
    stride3[0] = 3;
    block3[0]  = 2;
    start3[1]  = 1;
    count3[1]  = 3;
    stride3[1] = 3;
    block3[1]  = 2;

    start3[2]  = 1;
    count3[2]  = 2;
    stride3[2] = 2;
    block3[2]  = 1;

    ret = H5Sselect_hyperslab(sid_irreg3,H5S_SELECT_SET,start3,stride3,count3,block3);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start3[2]  = 3;
    count3[2]  = 2;
    stride3[2] = 3; /* Just add one element for the stride */
    block3[2]  = 1;

    ret = H5Sselect_hyperslab(sid_irreg3,H5S_SELECT_OR,start3,stride3,count3,block3);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    rebuild_stat = TRUE;
    rebuild_stat = H5S_get_rebuild_status_test(sid_irreg3);
    assert(rebuild_stat!=FAIL);
    /* In this case, rebuild_stat should be FALSE. */
    if(rebuild_stat){
       ret = FAIL;
       CHECK(ret,FAIL,"H5S_hyper_rebuild");
    }/* No need to do shape comparision */

    MESSAGE(7, ("Testing functionality to rebuild 4-D hyperslab selection\n"));

    /* Create 4-D dataspace */
    sid_reg4       = H5Screate_simple(SPACERE4_RANK,dims4,NULL);
    sid_reg_ori4   = H5Screate_simple(SPACERE4_RANK,dims4,NULL);

    /* Build up the original four dimensional regular selection */
    start4[0]  = 2;
    count4[0]  = 2;
    stride4[0] = 3;
    block4[0]  = 2;

    start4[1]  = 1;
    count4[1]  = 3;
    stride4[1] = 3;
    block4[1]  = 2;

    start4[2]  = 1;
    count4[2]  = 2;
    stride4[2] = 4;
    block4[2]  = 2;

    start4[3]  = 1;
    count4[3]  = 2;
    stride4[3] = 4;
    block4[3]  = 2;


    ret = H5Sselect_hyperslab(sid_reg_ori4,H5S_SELECT_SET,start4,stride4,count4,block4);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Build up four dimensional regular selection with H5_SELECT_OR, inside HDF5,
       it will be treated as an irregular selection. */
    start4[3]  = 1;
    count4[3]  = 1;
    stride4[3] = 4;
    block4[3]  = 2;

    ret = H5Sselect_hyperslab(sid_reg4,H5S_SELECT_SET,start4,stride4,count4,block4);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start4[3]  = 5;
    count4[3]  = 1;
    stride4[3] = 4;
    block4[3]  = 2;


    ret = H5Sselect_hyperslab(sid_reg4,H5S_SELECT_OR,start4,stride4,count4,block4);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    rebuild_stat = FALSE;
    rebuild_stat = H5S_get_rebuild_status_test(sid_reg4);
    assert(rebuild_stat!=FAIL);
    /* In this case, rebuild_stat should be TRUE. */
    if(!rebuild_stat){
       ret = FAIL;
       CHECK(ret,FAIL,"H5S_hyper_rebuild");
    }
    else {
       /* In this case, rebuild_check should be TRUE. */
       rebuild_check = H5S_select_shape_same_test(sid_reg4,sid_reg_ori4);
       CHECK(rebuild_check,FALSE,"H5S_hyper_rebuild");
    }

    /* Testing irregular selection */
    sid_irreg4     = H5Screate_simple(SPACERE4_RANK,dims4,NULL);

    /* Build up four dimensional irregular selection with H5_SELECT_OR */
    start4[0]  = 2;
    count4[0]  = 2;
    stride4[0] = 3;
    block4[0]  = 2;
    start4[1]  = 1;
    count4[1]  = 3;
    stride4[1] = 3;
    block4[1]  = 2;

    start4[2]  = 1;
    count4[2]  = 1;
    stride4[2] = 4;
    block4[2]  = 2;

    start4[3]  = 1;
    count4[3]  = 2;
    stride4[3] = 4;
    block4[3]  = 2; /* sub-block is one element difference */

    ret = H5Sselect_hyperslab(sid_irreg4,H5S_SELECT_SET,start4,stride4,count4,block4);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start4[2]  = 5;
    count4[2]  = 1;
    stride4[2] = 4;
    block4[2]  = 2;

    start4[3]  = 1;
    count4[3]  = 2;
    stride4[3] = 4;
    block4[3]  = 3;  /* sub-block is one element difference */

    ret = H5Sselect_hyperslab(sid_irreg4,H5S_SELECT_OR,start4,stride4,count4,block4);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    rebuild_stat = TRUE;
    rebuild_stat = H5S_get_rebuild_status_test(sid_irreg4);
    assert(rebuild_stat!=FAIL);
    /* In this case, rebuild_stat should be FALSE. */
    if(rebuild_stat){
       ret = FAIL;
       CHECK(ret,FAIL,"H5S_hyper_rebuild");
    }/* No need to do shape comparision */

    MESSAGE(7, ("Testing functionality to rebuild 5-D hyperslab selection\n"));

    /* Create 5-D dataspace */
    sid_reg5       = H5Screate_simple(SPACERE5_RANK,dims5,NULL);
    sid_reg_ori5   = H5Screate_simple(SPACERE5_RANK,dims5,NULL);

    /* Build up the original five dimensional regular selection */
    start5[0]  = 2;
    count5[0]  = 2;
    stride5[0] = 3;
    block5[0]  = 2;

    start5[1]  = 1;
    count5[1]  = 3;
    stride5[1] = 3;
    block5[1]  = 2;

    start5[2]  = 1;
    count5[2]  = 2;
    stride5[2] = 4;
    block5[2]  = 2;

    start5[3]  = 1;
    count5[3]  = 2;
    stride5[3] = 4;
    block5[3]  = 2;

    start5[4]  = 1;
    count5[4]  = 2;
    stride5[4] = 4;
    block5[4]  = 2;

    ret = H5Sselect_hyperslab(sid_reg_ori5,H5S_SELECT_SET,start5,stride5,count5,block5);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Build up four dimensional regular selection with H5_SELECT_OR, inside HDF5,
       it will be treated as an irregular selection. */
    start5[4]  = 1;
    count5[4]  = 1;
    stride5[4] = 4;
    block5[4]  = 2;

    ret = H5Sselect_hyperslab(sid_reg5,H5S_SELECT_SET,start5,stride5,count5,block5);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start5[4]  = 5;
    count5[4]  = 1;
    stride5[4] = 4;
    block5[4]  = 2;


    ret = H5Sselect_hyperslab(sid_reg5,H5S_SELECT_OR,start5,stride5,count5,block5);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");


    rebuild_stat = FALSE;
    rebuild_stat = H5S_get_rebuild_status_test(sid_reg5);
    assert(rebuild_stat!=FAIL);
    /* In this case, rebuild_stat should be TRUE. */
    if(!rebuild_stat){
       ret = FAIL;
       CHECK(ret,FAIL,"H5S_hyper_rebuild");
    }
    else {
       /* In this case, rebuild_check should be TRUE. */
       rebuild_check = H5S_select_shape_same_test(sid_reg5,sid_reg_ori5);
       CHECK(rebuild_check,FALSE,"H5S_hyper_rebuild");
    }

    sid_irreg5     = H5Screate_simple(SPACERE5_RANK,dims5,NULL);

    /* Build up five dimensional irregular selection with H5_SELECT_OR */
    start5[0]  = 2;
    count5[0]  = 2;
    stride5[0] = 3;
    block5[0]  = 2;

    start5[1]  = 1;
    count5[1]  = 3;
    stride5[1] = 3;
    block5[1]  = 2;

    start5[2]  = 1;
    count5[2]  = 2;
    stride5[2] = 4;
    block5[2]  = 2;

    start5[3]  = 1;
    count5[3]  = 1;
    stride5[3] = 4;
    block5[3]  = 2;

    start5[4]  = 2; /* One element difference */
    count5[4]  = 1;
    stride5[4] = 4;
    block5[4]  = 2;

    ret = H5Sselect_hyperslab(sid_irreg5,H5S_SELECT_SET,start5,stride5,count5,block5);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    start5[3]  = 5;
    count5[3]  = 1;
    stride5[3] = 4;
    block5[3]  = 2;

    start5[4]  = 1; /* One element difference */
    count5[4]  = 2;
    stride5[4] = 4;
    block5[4]  = 2;

    ret = H5Sselect_hyperslab(sid_irreg5,H5S_SELECT_OR,start5,stride5,count5,block5);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    rebuild_stat = TRUE;
    rebuild_stat = H5S_get_rebuild_status_test(sid_irreg5);
    assert(rebuild_stat!=FAIL);
    /* In this case, rebuild_stat should be FALSE. */
    if(rebuild_stat){
       ret = FAIL;
       CHECK(ret,FAIL,"H5S_hyper_rebuild");
    }/* No need to do shape comparision */

   /* We use 5-D to test a special case with
      rebuilding routine TRUE, FALSE and TRUE */
    sid_spec   = H5Screate_simple(SPACERE5_RANK,dims5,NULL);

    /* Build up the original five dimensional regular selection */
    start5[0]  = 2;
    count5[0]  = 2;
    stride5[0] = 3;
    block5[0]  = 2;

    start5[1]  = 1;
    count5[1]  = 3;
    stride5[1] = 3;
    block5[1]  = 2;

    start5[2]  = 1;
    count5[2]  = 2;
    stride5[2] = 4;
    block5[2]  = 2;

    start5[3]  = 1;
    count5[3]  = 2;
    stride5[3] = 4;
    block5[3]  = 2;

    start5[4]  = 1;
    count5[4]  = 1;
    stride5[4] = 4;
    block5[4]  = 2;

    ret = H5Sselect_hyperslab(sid_spec,H5S_SELECT_SET,start5,stride5,count5,block5);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");
    rebuild_stat = FALSE;
    rebuild_stat = H5S_get_rebuild_status_test(sid_spec);
    /* In this case, rebuild_stat should be TRUE. */
    if(!rebuild_stat){
       ret = FAIL;
       CHECK(ret,FAIL,"H5S_hyper_rebuild");
    }/* No need to do shape comparision */

    /* Adding some selections to make it real irregular */
    start5[3]  = 1;
    count5[3]  = 1;
    stride5[3] = 4;
    block5[3]  = 2;

    start5[4]  = 5;
    count5[4]  = 1;
    stride5[4] = 4;
    block5[4]  = 2;

    ret = H5Sselect_hyperslab(sid_spec,H5S_SELECT_OR,start5,stride5,count5,block5);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    rebuild_stat = TRUE;
    rebuild_stat = H5S_get_rebuild_status_test(sid_spec);
    assert(rebuild_stat!=FAIL);
    /* In this case, rebuild_stat should be FALSE. */
    if(rebuild_stat){
       ret = FAIL;
       CHECK(ret,FAIL,"H5S_hyper_rebuild");
    }/* No need to do shape comparision */

    start5[3]  = 5;
    count5[3]  = 1;
    stride5[3] = 4;
    block5[3]  = 2;

    start5[4]  = 5;
    count5[4]  = 1;
    stride5[4] = 4;
    block5[4]  = 2;

    ret = H5Sselect_hyperslab(sid_spec,H5S_SELECT_OR,start5,stride5,count5,block5);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    rebuild_stat = FALSE;
    rebuild_stat = H5S_get_rebuild_status_test(sid_spec);
    assert(rebuild_stat!=FAIL);
    /* In this case, rebuild_stat should be FALSE. */
    if(!rebuild_stat){
       ret = FAIL;
       CHECK(ret,FAIL,"H5S_hyper_rebuild");
    }/* No need to do shape comparision */

    H5Sclose(sid_reg1);
    CHECK(ret, FAIL, "H5Sclose");
    H5Sclose(sid_irreg1);
    CHECK(ret, FAIL, "H5Sclose");

    H5Sclose(sid_reg2);
    CHECK(ret, FAIL, "H5Sclose");
    H5Sclose(sid_irreg2);
    CHECK(ret, FAIL, "H5Sclose");

    H5Sclose(sid_reg3);
    CHECK(ret, FAIL, "H5Sclose");
    H5Sclose(sid_irreg3);
    CHECK(ret, FAIL, "H5Sclose");

    H5Sclose(sid_reg4);
    CHECK(ret, FAIL, "H5Sclose");
    H5Sclose(sid_irreg4);
    CHECK(ret, FAIL, "H5Sclose");

    H5Sclose(sid_reg5);
    CHECK(ret, FAIL, "H5Sclose");
    H5Sclose(sid_irreg5);
    CHECK(ret, FAIL, "H5Sclose");

    H5Sclose(sid_spec);
    CHECK(ret, FAIL, "H5Sclose");
}


/****************************************************************
**
**  test_select_hyper_chunk_offset(): Tests selections on dataspace,
**      verify that offsets for hyperslab selections are working in
**      chunked datasets.
**
****************************************************************/
static void
test_select_hyper_chunk_offset(void)
{
    hid_t fid;          /* File ID  */
    hid_t sid;          /* Dataspace ID */
    hid_t msid;         /* Memory dataspace ID */
    hid_t did;          /* Dataset ID */
    const hsize_t mem_dims[1] = { SPACE10_DIM1 };      /* Dataspace dimensions for memory */
    const hsize_t dims[1] = { 0 };      /* Dataspace initial dimensions */
    const hsize_t maxdims[1] = { H5S_UNLIMITED };       /* Dataspace mam dims */
    int *wbuf;                          /* Buffer for writing data */
    int *rbuf;                          /* Buffer for reading data */
    hid_t dcpl;                         /* Dataset creation property list ID */
    hsize_t chunks[1]={SPACE10_CHUNK_SIZE };    /* Chunk size */
    hsize_t start[1] = { 0 };           /* The start of the hyperslab */
    hsize_t count[1] = { SPACE10_CHUNK_SIZE };  /* The size of the hyperslab */
    int i,j;                            /* Local index */
    herr_t ret;                         /* Generic return value */

    /* Output message about test being performed */
    MESSAGE(6, ("Testing hyperslab selections using offsets in chunked datasets\n"));

    /* Allocate buffers */
    wbuf = (int *)HDmalloc(sizeof(int) * SPACE10_DIM1);
    CHECK(wbuf, NULL, "HDmalloc");
    rbuf = (int *)HDcalloc(sizeof(int), SPACE10_DIM1);
    CHECK(rbuf, NULL, "HDcalloc");

    /* Initialize the write buffer */
    for(i=0; i<SPACE10_DIM1; i++)
        wbuf[i]=i;

    /* Create file */
    fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(fid, FAIL, "H5Fcreate");

    /* Create a dataset creation property list */
    dcpl = H5Pcreate(H5P_DATASET_CREATE);
    CHECK(dcpl, FAIL, "H5Pcreate");

    /* Set to chunked storage layout */
    ret = H5Pset_layout(dcpl, H5D_CHUNKED);
    CHECK(ret, FAIL, "H5Pset_layout");

    /* Set the chunk size */
    ret = H5Pset_chunk(dcpl, 1, chunks);
    CHECK(ret, FAIL, "H5Pset_chunk");

    /* Create dataspace for memory */
    msid = H5Screate_simple(1, mem_dims, NULL);
    CHECK(msid, FAIL, "H5Screate_simple");

    /* Select the correct chunk in the memory dataspace */
    ret = H5Sselect_hyperslab(msid, H5S_SELECT_SET, start, NULL, count, NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Create dataspace for dataset */
    sid = H5Screate_simple(1, dims, maxdims);
    CHECK(sid, FAIL, "H5Screate_simple");

    /* Create the dataset */
    did = H5Dcreate2(fid, "fooData", H5T_NATIVE_INT, sid, H5P_DEFAULT, dcpl, H5P_DEFAULT);
    CHECK(did, FAIL, "H5Dcreate2");

    /* Close the dataspace */
    ret = H5Sclose(sid);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close the dataset creation property list */
    ret = H5Pclose(dcpl);
    CHECK(ret, FAIL, "H5Pclose");

    /* Loop over writing out each chunk */
    for(i = SPACE10_CHUNK_SIZE; i <= SPACE10_DIM1; i += SPACE10_CHUNK_SIZE) {
        hssize_t offset[1];                 /* Offset of selection */
        hid_t fsid;                         /* File dataspace ID */
        hsize_t size[1];                    /* The size to extend the dataset to */

        /* Extend the dataset */
        size[0] = (hsize_t)i;                 /* The size to extend the dataset to */
        ret = H5Dset_extent(did, size);
        CHECK(ret, FAIL, "H5Dset_extent");

        /* Get the (extended) dataspace from the dataset */
        fsid = H5Dget_space(did);
        CHECK(fsid, FAIL, "H5Dget_space");

        /* Select the correct chunk in the dataset */
        ret = H5Sselect_hyperslab(fsid, H5S_SELECT_SET, start, NULL, count, NULL);
        CHECK(ret, FAIL, "H5Sselect_hyperslab");

        /* Set the selection offset for the file dataspace */
        offset[0] = i - SPACE10_CHUNK_SIZE;
        ret = H5Soffset_simple(fsid, offset);
        CHECK(ret, FAIL, "H5Soffset_simple");

        /* Set the selection offset for the memory dataspace */
        offset[0] = SPACE10_DIM1 - i;
        ret = H5Soffset_simple(msid, offset);
        CHECK(ret, FAIL, "H5Soffset_simple");

        /* Write the data to the chunk */
        ret = H5Dwrite(did, H5T_NATIVE_INT, msid, fsid, H5P_DEFAULT, wbuf);
        CHECK(ret, FAIL, "H5Dwrite");

        /* Close the file dataspace copy */
        ret = H5Sclose(fsid);
        CHECK(ret, FAIL, "H5Sclose");
    }

    /* Read the data back in */
    ret = H5Dread(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, rbuf);
    CHECK(ret, FAIL, "H5Dread");

    /* Verify the information read in */
    for(i=0; i<SPACE10_DIM1; i+=SPACE10_CHUNK_SIZE)
        for(j=0; j<SPACE10_CHUNK_SIZE; j++)
            if(wbuf[i+j]!=rbuf[((SPACE10_DIM1-i)-SPACE10_CHUNK_SIZE)+j])
                TestErrPrintf("Line: %d - Error! i=%d, j=%d, rbuf=%d, wbuf=%d\n",__LINE__,i,j,rbuf[((SPACE10_DIM1-i)-SPACE10_CHUNK_SIZE)+j],wbuf[i+j]);

/* Check with 'OR'ed set of hyperslab selections, which makes certain the
 * hyperslab spanlist code gets tested. -QAK
 */

    /* Re-initialize the write buffer */
    for(i = 0; i < SPACE10_DIM1; i++)
        wbuf[i] = i * 2;

    /* Change the selected the region in the memory dataspace */
    start[0] = 0;
    count[0] = SPACE10_CHUNK_SIZE/3;
    ret = H5Sselect_hyperslab(msid, H5S_SELECT_SET, start, NULL, count, NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");
    start[0] = (2 * SPACE10_CHUNK_SIZE)/3;
    ret = H5Sselect_hyperslab(msid, H5S_SELECT_OR, start, NULL, count, NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Loop over writing out each chunk */
    for(i = SPACE10_CHUNK_SIZE; i <= SPACE10_DIM1; i += SPACE10_CHUNK_SIZE) {
        hssize_t offset[1];                 /* Offset of selection */
        hid_t fsid;                         /* File dataspace ID */
        hsize_t size[1];                    /* The size to extend the dataset to */

        /* Extend the dataset */
        size[0] = (hsize_t)i;                 /* The size to extend the dataset to */
        ret = H5Dset_extent(did, size);
        CHECK(ret, FAIL, "H5Dset_extent");

        /* Get the (extended) dataspace from the dataset */
        fsid = H5Dget_space (did);
        CHECK(fsid, FAIL, "H5Dget_space");

        /* Select the correct region in the dataset */
        start[0] = 0;
        ret = H5Sselect_hyperslab(fsid, H5S_SELECT_SET, start, NULL, count, NULL);
        CHECK(ret, FAIL, "H5Sselect_hyperslab");
        start[0] = (2*SPACE10_CHUNK_SIZE)/3;
        ret = H5Sselect_hyperslab(fsid, H5S_SELECT_OR, start, NULL, count, NULL);
        CHECK(ret, FAIL, "H5Sselect_hyperslab");

        /* Set the selection offset for the file dataspace */
        offset[0] = i - SPACE10_CHUNK_SIZE;
        ret = H5Soffset_simple(fsid, offset);
        CHECK(ret, FAIL, "H5Soffset_simple");

        /* Set the selection offset for the memory dataspace */
        offset[0] = SPACE10_DIM1-i;
        ret = H5Soffset_simple(msid, offset);
        CHECK(ret, FAIL, "H5Soffset_simple");

        /* Write the data to the chunk */
        ret = H5Dwrite(did, H5T_NATIVE_INT, msid, fsid, H5P_DEFAULT, wbuf);
        CHECK(ret, FAIL, "H5Soffset_simple");

        /* Close the file dataspace copy */
        ret = H5Sclose(fsid);
        CHECK(ret, FAIL, "H5Sclose");
    }

    /* Read the data back in */
    ret = H5Dread(did, H5T_NATIVE_INT, H5S_ALL, H5S_ALL, H5P_DEFAULT, rbuf);
    CHECK(ret, FAIL, "H5Soffset_simple");

    /* Verify the information read in */
    for(i=0; i<SPACE10_DIM1; i+=SPACE10_CHUNK_SIZE)
        for(j=0; j<SPACE10_CHUNK_SIZE; j++)
            /* We're not writing out the "middle" of each chunk, so don't check that */
            if(j<(SPACE10_CHUNK_SIZE/3) || j>=((2*SPACE10_CHUNK_SIZE)/3))
                if(wbuf[i+j]!=rbuf[((SPACE10_DIM1-i)-SPACE10_CHUNK_SIZE)+j])
                    TestErrPrintf("Line: %d - Error! i=%d, j=%d, rbuf=%d, wbuf=%d\n",__LINE__,i,j,rbuf[((SPACE10_DIM1-i)-SPACE10_CHUNK_SIZE)+j],wbuf[i+j]);

    /* Close the memory dataspace */
    ret=H5Sclose (msid);
    CHECK(ret, FAIL, "H5Sclose");

    /* Close the dataset */
    ret=H5Dclose (did);
    CHECK(ret, FAIL, "H5Dclose");

    /* Close the file */
    ret=H5Fclose (fid);
    CHECK(ret, FAIL, "H5Fclose");

    /* Free the buffers */
    HDfree(wbuf);
    HDfree(rbuf);
}   /* test_select_hyper_chunk_offset() */

/****************************************************************
**
**  test_select_hyper_chunk_offset2(): Tests selections on dataspace,
**      another test to verify that offsets for hyperslab selections are
**      working in chunked datasets.
**
****************************************************************/
static void
test_select_hyper_chunk_offset2(void)
{
    hid_t       file, dataset;  /* handles */
    hid_t       dataspace;
    hid_t       memspace;
    hid_t       dcpl;           /* Dataset creation property list */
    herr_t      status;
    unsigned    data_out[SPACE12_DIM0]; /* output buffer */
    unsigned    data_in[SPACE12_CHUNK_DIM0]; /* input buffer */
    hsize_t     dims[SPACE12_RANK]={SPACE12_DIM0};              /* Dimension size */
    hsize_t     chunk_dims[SPACE12_RANK]={SPACE12_CHUNK_DIM0};  /* Chunk size */
    hsize_t     start[SPACE12_RANK];    /* Start of hyperslab */
    hsize_t     count[SPACE12_RANK];    /* Size of hyperslab */
    hssize_t    offset[SPACE12_RANK];   /* hyperslab offset in the file */
    unsigned    u, v;           /* Local index variables */

    /* Output message about test being performed */
    MESSAGE(6, ("Testing more hyperslab selections using offsets in chunked datasets\n"));

    /* Initialize data to write out */
    for (u = 0; u < SPACE12_DIM0; u++)
        data_out[u] = u;

    /* Create the file */
    file = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT);
    CHECK(file, FAIL, "H5Fcreate");

    /* Create dataspace */
    dataspace = H5Screate_simple(SPACE12_RANK, dims, NULL);
    CHECK(dataspace, FAIL, "H5Screate_simple");

    /* Create dataset creation property list */
    dcpl = H5Pcreate(H5P_DATASET_CREATE);
    CHECK(dcpl, FAIL, "H5Pcreate");

    /* Set chunk sizes */
    status = H5Pset_chunk(dcpl, SPACE12_RANK, chunk_dims);
    CHECK(status, FAIL, "H5Pset_chunk");

    /* Create dataset */
    dataset = H5Dcreate2(file, DATASETNAME, H5T_NATIVE_UINT, dataspace, H5P_DEFAULT, dcpl, H5P_DEFAULT);
    CHECK(dataset, FAIL, "H5Dcreate2");

    /* Close DCPL */
    status = H5Pclose(dcpl);
    CHECK(status, FAIL, "H5Pclose");

    /* Write out entire dataset */
    status = H5Dwrite(dataset, H5T_NATIVE_UINT, H5S_ALL, H5S_ALL, H5P_DEFAULT, data_out);
    CHECK(status, FAIL, "H5Dclose");

    /* Create memory dataspace (same size as a chunk) */
    memspace = H5Screate_simple(SPACE12_RANK, chunk_dims, NULL);
    CHECK(dataspace, FAIL, "H5Screate_simple");

    /*
     * Define hyperslab in the file dataspace.
     */
    start[0] = 0;
    count[0] = SPACE12_CHUNK_DIM0;
    status = H5Sselect_hyperslab(dataspace, H5S_SELECT_SET, start, NULL, count, NULL);
    CHECK(status, FAIL, "H5Sselect_hyperslab");

    /* Loop through retrieving data from file, checking it against data written */
    for(u = 0; u < SPACE12_DIM0; u += SPACE12_CHUNK_DIM0) {
        /* Set the offset of the file selection */
        offset[0] = u;
        status = H5Soffset_simple(dataspace, offset);
        CHECK(status, FAIL, "H5Soffset_simple");

        /* Read in buffer of data */
        status = H5Dread(dataset, H5T_NATIVE_UINT, memspace, dataspace,
                H5P_DEFAULT, data_in);
        CHECK(status, FAIL, "H5Dread");

        /* Check data read in */
        for(v = 0; v < SPACE12_CHUNK_DIM0; v++)
            if(data_out[u + v] != data_in[v])
                TestErrPrintf("Error! data_out[%u]=%u, data_in[%u]=%u\n",(unsigned)(u + v), data_out[u + v], v, data_in[v]);
    } /* end for */

    status = H5Dclose(dataset);
    CHECK(status, FAIL, "H5Dclose");

    status = H5Sclose(dataspace);
    CHECK(status, FAIL, "H5Sclose");

    status = H5Sclose(memspace);
    CHECK(status, FAIL, "H5Sclose");

    status = H5Fclose(file);
    CHECK(status, FAIL, "H5Fclose");
}   /* test_select_hyper_chunk_offset2() */

/****************************************************************
**
**  test_select_bounds(): Tests selection bounds on dataspaces,
**      both with and without offsets.
**
****************************************************************/
static void
test_select_bounds(void)
{
    hid_t sid;          /* Dataspace ID */
    const hsize_t dims[SPACE11_RANK] = {SPACE11_DIM1, SPACE11_DIM2};    /* Dataspace dimensions */
    hsize_t coord[SPACE11_NPOINTS][SPACE11_RANK]; /* Coordinates for point selection */
    hsize_t start[SPACE11_RANK];       /* The start of the hyperslab */
    hsize_t stride[SPACE11_RANK];       /* The stride between block starts for the hyperslab */
    hsize_t count[SPACE11_RANK];        /* The number of blocks for the hyperslab */
    hsize_t block[SPACE11_RANK];        /* The size of each block for the hyperslab */
    hssize_t offset[SPACE11_RANK];      /* Offset amount for selection */
    hsize_t low_bounds[SPACE11_RANK];  /* The low bounds for the selection */
    hsize_t high_bounds[SPACE11_RANK]; /* The high bounds for the selection */
    herr_t ret;                         /* Generic return value */

    /* Output message about test being performed */
    MESSAGE(6, ("Testing selection bounds\n"));

    /* Create dataspace */
    sid = H5Screate_simple (SPACE11_RANK, dims, NULL);
    CHECK(sid, FAIL, "H5Screate_simple");

    /* Get bounds for 'all' selection */
    ret = H5Sget_select_bounds(sid, low_bounds, high_bounds);
    CHECK(ret, FAIL, "H5Sget_select_bounds");
    VERIFY(low_bounds[0], 0, "H5Sget_select_bounds");
    VERIFY(low_bounds[1], 0, "H5Sget_select_bounds");
    VERIFY(high_bounds[0], SPACE11_DIM1 - 1, "H5Sget_select_bounds");
    VERIFY(high_bounds[1], SPACE11_DIM2 - 1, "H5Sget_select_bounds");

    /* Set offset for selection */
    offset[0] = 1; offset[1] = 1;
    ret = H5Soffset_simple(sid, offset);
    CHECK(ret, FAIL, "H5Soffset_simple");

    /* Get bounds for 'all' selection with offset (which should be ignored) */
    ret = H5Sget_select_bounds(sid, low_bounds, high_bounds);
    CHECK(ret, FAIL, "H5Sget_select_bounds");
    VERIFY(low_bounds[0], 0, "H5Sget_select_bounds");
    VERIFY(low_bounds[1], 0, "H5Sget_select_bounds");
    VERIFY(high_bounds[0], SPACE11_DIM1 - 1, "H5Sget_select_bounds");
    VERIFY(high_bounds[1], SPACE11_DIM2 - 1, "H5Sget_select_bounds");

    /* Reset offset for selection */
    offset[0] = 0; offset[1] = 0;
    ret = H5Soffset_simple(sid, offset);
    CHECK(ret, FAIL, "H5Soffset_simple");

    /* Set 'none' selection */
    ret = H5Sselect_none(sid);
    CHECK(ret, FAIL, "H5Sselect_none");

    /* Get bounds for 'none' selection */
    H5E_BEGIN_TRY {
        ret = H5Sget_select_bounds(sid, low_bounds, high_bounds);
    } H5E_END_TRY;                                  
    VERIFY(ret, FAIL, "H5Sget_select_bo unds");     
                                                    
    /* Set point selection */
    coord[0][0] =  3; coord[0][1] =  3;
    coord[1][0] =  3; coord[1][1] = 96;
    coord[2][0] = 96; coord[2][1] =  3;
    coord[3][0] = 96; coord[3][1] = 96;
    ret = H5Sselect_elements(sid, H5S_SELECT_SET, (size_t)SPACE11_NPOINTS, (const hsize_t *)coord);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Get bounds for point selection */
    ret = H5Sget_select_bounds(sid, low_bounds, high_bounds);
    CHECK(ret, FAIL, "H5Sget_select_bounds");
    VERIFY(low_bounds[0], 3, "H5Sget_select_bounds");
    VERIFY(low_bounds[1], 3, "H5Sget_select_bounds");
    VERIFY(high_bounds[0], SPACE11_DIM1 - 4, "H5Sget_select_bounds");
    VERIFY(high_bounds[1], SPACE11_DIM2 - 4, "H5Sget_select_bounds");

    /* Set bad offset for selection */
    offset[0] = 5; offset[1] = -5;
    ret = H5Soffset_simple(sid, offset);
    CHECK(ret, FAIL, "H5Soffset_simple");

    /* Get bounds for hyperslab selection with negative offset */
    H5E_BEGIN_TRY {
        ret = H5Sget_select_bounds(sid, low_bounds, high_bounds);
    } H5E_END_TRY;
    VERIFY(ret, FAIL, "H5Sget_select_bounds");

    /* Set valid offset for selection */
    offset[0] = 2; offset[1] = -2;
    ret = H5Soffset_simple(sid, offset);
    CHECK(ret, FAIL, "H5Soffset_simple");

    /* Get bounds for point selection with offset */
    ret = H5Sget_select_bounds(sid, low_bounds, high_bounds);
    CHECK(ret, FAIL, "H5Sget_select_bounds");
    VERIFY(low_bounds[0], 5, "H5Sget_select_bounds");
    VERIFY(low_bounds[1], 1, "H5Sget_select_bounds");
    VERIFY(high_bounds[0], SPACE11_DIM1 - 2, "H5Sget_select_bounds");
    VERIFY(high_bounds[1], SPACE11_DIM2 - 6, "H5Sget_select_bounds");

    /* Reset offset for selection */
    offset[0] = 0; offset[1] = 0;
    ret = H5Soffset_simple(sid, offset);
    CHECK(ret, FAIL, "H5Soffset_simple");

    /* Set "regular" hyperslab selection */
    start[0] = 2; start[1] = 2;
    stride[0] = 10; stride[1] = 10;
    count[0] = 4; count[1] = 4;
    block[0] = 5; block[1] = 5;
    ret = H5Sselect_hyperslab(sid, H5S_SELECT_SET, start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Get bounds for hyperslab selection */
    ret = H5Sget_select_bounds(sid, low_bounds, high_bounds);
    CHECK(ret, FAIL, "H5Sget_select_bounds");
    VERIFY(low_bounds[0], 2, "H5Sget_select_bounds");
    VERIFY(low_bounds[1], 2, "H5Sget_select_bounds");
    VERIFY(high_bounds[0], 36, "H5Sget_select_bounds");
    VERIFY(high_bounds[1], 36, "H5Sget_select_bounds");

    /* Set bad offset for selection */
    offset[0] = 5; offset[1] = -5;
    ret = H5Soffset_simple(sid, offset);
    CHECK(ret, FAIL, "H5Soffset_simple");

    /* Get bounds for hyperslab selection with negative offset */
    H5E_BEGIN_TRY {
        ret = H5Sget_select_bounds(sid, low_bounds, high_bounds);
    } H5E_END_TRY;
    VERIFY(ret, FAIL, "H5Sget_select_bounds");

    /* Set valid offset for selection */
    offset[0] = 5; offset[1] = -2;
    ret = H5Soffset_simple(sid, offset);
    CHECK(ret, FAIL, "H5Soffset_simple");

    /* Get bounds for hyperslab selection with offset */
    ret = H5Sget_select_bounds(sid, low_bounds, high_bounds);
    CHECK(ret, FAIL, "H5Sget_select_bounds");
    VERIFY(low_bounds[0], 7, "H5Sget_select_bounds");
    VERIFY(low_bounds[1], 0, "H5Sget_select_bounds");
    VERIFY(high_bounds[0], 41, "H5Sget_select_bounds");
    VERIFY(high_bounds[1], 34, "H5Sget_select_bounds");

    /* Reset offset for selection */
    offset[0] = 0; offset[1] = 0;
    ret = H5Soffset_simple(sid, offset);
    CHECK(ret, FAIL, "H5Soffset_simple");

    /* Make "irregular" hyperslab selection */
    start[0] = 20; start[1] = 20;
    stride[0] = 20; stride[1] = 20;
    count[0] = 2; count[1] = 2;
    block[0] = 10; block[1] = 10;
    ret = H5Sselect_hyperslab(sid, H5S_SELECT_OR, start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Get bounds for hyperslab selection */
    ret = H5Sget_select_bounds(sid, low_bounds, high_bounds);
    CHECK(ret, FAIL, "H5Sget_select_bounds");
    VERIFY(low_bounds[0], 2, "H5Sget_select_bounds");
    VERIFY(low_bounds[1], 2, "H5Sget_select_bounds");
    VERIFY(high_bounds[0], 49, "H5Sget_select_bounds");
    VERIFY(high_bounds[1], 49, "H5Sget_select_bounds");

    /* Set bad offset for selection */
    offset[0] = 5; offset[1] = -5;
    ret = H5Soffset_simple(sid, offset);
    CHECK(ret, FAIL, "H5Soffset_simple");

    /* Get bounds for hyperslab selection with negative offset */
    H5E_BEGIN_TRY {
        ret = H5Sget_select_bounds(sid, low_bounds, high_bounds);
    } H5E_END_TRY;
    VERIFY(ret, FAIL, "H5Sget_select_bounds");

    /* Set valid offset for selection */
    offset[0] = 5; offset[1] = -2;
    ret = H5Soffset_simple(sid, offset);
    CHECK(ret, FAIL, "H5Soffset_simple");

    /* Get bounds for hyperslab selection with offset */
    ret = H5Sget_select_bounds(sid, low_bounds, high_bounds);
    CHECK(ret, FAIL, "H5Sget_select_bounds");
    VERIFY(low_bounds[0], 7, "H5Sget_select_bounds");
    VERIFY(low_bounds[1], 0, "H5Sget_select_bounds");
    VERIFY(high_bounds[0], 54, "H5Sget_select_bounds");
    VERIFY(high_bounds[1], 47, "H5Sget_select_bounds");

    /* Reset offset for selection */
    offset[0] = 0; offset[1] = 0;
    ret = H5Soffset_simple(sid, offset);
    CHECK(ret, FAIL, "H5Soffset_simple");

    /* Close the dataspace */
    ret = H5Sclose(sid);
    CHECK(ret, FAIL, "H5Sclose");
}   /* test_select_bounds() */

/****************************************************************
**
**  test_hyper_regular(): Tests query operations on regular hyperslabs
**
****************************************************************/
static void
test_hyper_regular(void)
{
    hid_t sid;          /* Dataspace ID */
    const hsize_t dims[SPACE13_RANK] = {SPACE13_DIM1, SPACE13_DIM2, SPACE13_DIM3};    /* Dataspace dimensions */
    hsize_t coord[SPACE13_NPOINTS][SPACE13_RANK]; /* Coordinates for point selection */
    hsize_t start[SPACE13_RANK];        /* The start of the hyperslab */
    hsize_t stride[SPACE13_RANK];       /* The stride between block starts for the hyperslab */
    hsize_t count[SPACE13_RANK];        /* The number of blocks for the hyperslab */
    hsize_t block[SPACE13_RANK];        /* The size of each block for the hyperslab */
    hsize_t t_start[SPACE13_RANK];      /* Temporary start of the hyperslab */
    hsize_t t_count[SPACE13_RANK];      /* Temporary number of blocks for the hyperslab */
    hsize_t q_start[SPACE13_RANK];      /* The queried start of the hyperslab */
    hsize_t q_stride[SPACE13_RANK];     /* The queried stride between block starts for the hyperslab */
    hsize_t q_count[SPACE13_RANK];      /* The queried number of blocks for the hyperslab */
    hsize_t q_block[SPACE13_RANK];      /* The queried size of each block for the hyperslab */
    htri_t is_regular;                  /* Whether a hyperslab selection is regular */
    unsigned u;                         /* Local index variable */
    herr_t ret;                         /* Generic return value */

    /* Output message about test being performed */
    MESSAGE(6, ("Testing queries on regular hyperslabs\n"));

    /* Create dataspace */
    sid = H5Screate_simple(SPACE13_RANK, dims, NULL);
    CHECK(sid, FAIL, "H5Screate_simple");

    /* Query if 'all' selection is regular hyperslab (should fail) */
    H5E_BEGIN_TRY {
        is_regular = H5Sis_regular_hyperslab(sid);
    } H5E_END_TRY;                                  
    VERIFY(is_regular, FAIL, "H5Sis_regular_hyperslab");     

    /* Query regular hyperslab selection info (should fail) */
    H5E_BEGIN_TRY {
        ret = H5Sget_regular_hyperslab(sid, q_start, q_stride, q_count, q_block);
    } H5E_END_TRY;                                  
    VERIFY(ret, FAIL, "H5Sget_regular_hyperslab");     

    /* Set 'none' selection */
    ret = H5Sselect_none(sid);
    CHECK(ret, FAIL, "H5Sselect_none");

    /* Query if 'none' selection is regular hyperslab (should fail) */
    H5E_BEGIN_TRY {
        is_regular = H5Sis_regular_hyperslab(sid);
    } H5E_END_TRY;                                  
    VERIFY(is_regular, FAIL, "H5Sis_regular_hyperslab");     

    /* Query regular hyperslab selection info (should fail) */
    H5E_BEGIN_TRY {
        ret = H5Sget_regular_hyperslab(sid, q_start, q_stride, q_count, q_block);
    } H5E_END_TRY;                                  
    VERIFY(ret, FAIL, "H5Sget_regular_hyperslab");     

    /* Set point selection */
    coord[0][0] =  3; coord[0][1] =  3; coord[0][2] = 3;
    coord[1][0] =  3; coord[1][1] = 48; coord[1][2] = 48;
    coord[2][0] = 48; coord[2][1] =  3; coord[2][2] = 3;
    coord[3][0] = 48; coord[3][1] = 48; coord[3][2] = 48;
    ret = H5Sselect_elements(sid, H5S_SELECT_SET, (size_t)SPACE13_NPOINTS, (const hsize_t *)coord);
    CHECK(ret, FAIL, "H5Sselect_elements");

    /* Query if 'point' selection is regular hyperslab (should fail) */
    H5E_BEGIN_TRY {
        is_regular = H5Sis_regular_hyperslab(sid);
    } H5E_END_TRY;                                  
    VERIFY(is_regular, FAIL, "H5Sis_regular_hyperslab");     

    /* Query regular hyperslab selection info (should fail) */
    H5E_BEGIN_TRY {
        ret = H5Sget_regular_hyperslab(sid, q_start, q_stride, q_count, q_block);
    } H5E_END_TRY;                                  
    VERIFY(ret, FAIL, "H5Sget_regular_hyperslab");     

    /* Set "regular" hyperslab selection */
    start[0]  = 2; start[1]  = 2; start[2]  = 2;
    stride[0] = 5; stride[1] = 5; stride[2] = 5;
    count[0]  = 3; count[1]  = 3; count[2]  = 3;
    block[0]  = 4; block[1]  = 4; block[2]  = 4;
    ret = H5Sselect_hyperslab(sid, H5S_SELECT_SET, start, stride, count, block);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Query if 'hyperslab' selection is regular hyperslab (should be TRUE) */
    is_regular = H5Sis_regular_hyperslab(sid);
    VERIFY(is_regular, TRUE, "H5Sis_regular_hyperslab");     

    /* Retrieve the hyperslab parameters */
    ret = H5Sget_regular_hyperslab(sid, q_start, q_stride, q_count, q_block);
    CHECK(ret, FAIL, "H5Sget_regular_hyperslab");

    /* Verify the hyperslab parameters */
    for(u = 0; u < SPACE13_RANK; u++) {
        if(start[u] != q_start[u])
            ERROR("H5Sget_regular_hyperslab, start");
        if(stride[u] != q_stride[u])
            ERROR("H5Sget_regular_hyperslab, stride");
        if(count[u] != q_count[u])
            ERROR("H5Sget_regular_hyperslab, count");
        if(block[u] != q_block[u])
            ERROR("H5Sget_regular_hyperslab, block");
    } /* end for */

    /* 'OR' in another point */
    t_start[0]  = 0; t_start[1]  = 0; t_start[2]  = 0;
    t_count[0]  = 1; t_count[1]  = 1; t_count[2]  = 1;
    ret = H5Sselect_hyperslab(sid, H5S_SELECT_OR, t_start, NULL, t_count, NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Query if 'hyperslab' selection is regular hyperslab (should be FALSE) */
    is_regular = H5Sis_regular_hyperslab(sid);
    VERIFY(is_regular, FALSE, "H5Sis_regular_hyperslab");     

    /* Query regular hyperslab selection info (should fail) */
    H5E_BEGIN_TRY {
        ret = H5Sget_regular_hyperslab(sid, q_start, q_stride, q_count, q_block);
    } H5E_END_TRY;                                  
    VERIFY(ret, FAIL, "H5Sget_regular_hyperslab");     

    /* 'XOR' in the point again, to remove it, which should make it regular again */
    t_start[0]  = 0; t_start[1]  = 0; t_start[2]  = 0;
    t_count[0]  = 1; t_count[1]  = 1; t_count[2]  = 1;
    ret = H5Sselect_hyperslab(sid, H5S_SELECT_XOR, t_start, NULL, t_count, NULL);
    CHECK(ret, FAIL, "H5Sselect_hyperslab");

    /* Query if 'hyperslab' selection is regular hyperslab (should be TRUE) */
    is_regular = H5Sis_regular_hyperslab(sid);
    VERIFY(is_regular, TRUE, "H5Sis_regular_hyperslab");     

    /* Retrieve the hyperslab parameters */
    ret = H5Sget_regular_hyperslab(sid, q_start, q_stride, q_count, q_block);
    CHECK(ret, FAIL, "H5Sget_regular_hyperslab");

    /* Verify the hyperslab parameters */
    for(u = 0; u < SPACE13_RANK; u++) {
        if(start[u] != q_start[u])
            ERROR("H5Sget_regular_hyperslab, start");
        if(stride[u] != q_stride[u])
            ERROR("H5Sget_regular_hyperslab, stride");
        if(count[u] != q_count[u])
            ERROR("H5Sget_regular_hyperslab, count");
        if(block[u] != q_block[u])
            ERROR("H5Sget_regular_hyperslab, block");
    } /* end for */

    /* Close the dataspace */
    ret = H5Sclose(sid);
    CHECK(ret, FAIL, "H5Sclose");
}   /* test_hyper_regular() */

/****************************************************************
**
**  test_select(): Main H5S selection testing routine.
**
****************************************************************/
void
test_select(void)
{
    hid_t plist_id;     /* Property list for reading random hyperslabs */
    hid_t fapl;         /* Property list accessing the file */
    int mdc_nelmts;     /* Metadata number of elements */
    size_t rdcc_nelmts;   /* Raw data number of elements */
    size_t rdcc_nbytes; /* Raw data number of bytes */
    double rdcc_w0;     /* Raw data write percentage */
    hssize_t offset[SPACE7_RANK] = {1, 1}; /* Offset for testing selection offsets */
    herr_t	ret;	/* Generic return value		*/

    /* Output message about test being performed */
    MESSAGE(5, ("Testing Selections\n"));

    /* Create a dataset transfer property list */
    plist_id = H5Pcreate(H5P_DATASET_XFER);
    CHECK(plist_id, FAIL, "H5Pcreate");

    /* test I/O with a very small buffer for reads */
    ret = H5Pset_buffer(plist_id, (size_t)59, NULL, NULL);
    CHECK(ret, FAIL, "H5Pset_buffer");

    /* These next tests use the same file */
    test_select_hyper(H5P_DEFAULT);     /* Test basic H5S hyperslab selection code */
    test_select_hyper(plist_id);        /* Test basic H5S hyperslab selection code */
    test_select_point(H5P_DEFAULT);     /* Test basic H5S element selection code, also tests appending to existing element selections */
    test_select_point(plist_id);        /* Test basic H5S element selection code, also tests appending to existing element selections */
    test_select_all(H5P_DEFAULT);       /* Test basic all & none selection code */
    test_select_all(plist_id);          /* Test basic all & none selection code */
    test_select_all_hyper(H5P_DEFAULT);       /* Test basic all & none selection code */
    test_select_all_hyper(plist_id);          /* Test basic all & none selection code */

    /* These next tests use the same file */
    test_select_combo();        /* Test combined hyperslab & element selection code */
    test_select_hyper_stride(H5P_DEFAULT); /* Test strided hyperslab selection code */
    test_select_hyper_stride(plist_id); /* Test strided hyperslab selection code */
    test_select_hyper_contig(H5T_STD_U16LE, H5P_DEFAULT); /* Test contiguous hyperslab selection code */
    test_select_hyper_contig(H5T_STD_U16LE, plist_id); /* Test contiguous hyperslab selection code */
    test_select_hyper_contig(H5T_STD_U16BE, H5P_DEFAULT); /* Test contiguous hyperslab selection code */
    test_select_hyper_contig(H5T_STD_U16BE, plist_id); /* Test contiguous hyperslab selection code */
    test_select_hyper_contig2(H5T_STD_U16LE, H5P_DEFAULT); /* Test more contiguous hyperslab selection cases */
    test_select_hyper_contig2(H5T_STD_U16LE, plist_id); /* Test more contiguous hyperslab selection cases */
    test_select_hyper_contig2(H5T_STD_U16BE, H5P_DEFAULT); /* Test more contiguous hyperslab selection cases */
    test_select_hyper_contig2(H5T_STD_U16BE, plist_id); /* Test more contiguous hyperslab selection cases */
    test_select_hyper_contig3(H5T_STD_U16LE, H5P_DEFAULT); /* Test yet more contiguous hyperslab selection cases */
    test_select_hyper_contig3(H5T_STD_U16LE, plist_id); /* Test yet more contiguous hyperslab selection cases */
    test_select_hyper_contig3(H5T_STD_U16BE, H5P_DEFAULT); /* Test yet more contiguous hyperslab selection cases */
    test_select_hyper_contig3(H5T_STD_U16BE, plist_id); /* Test yet more contiguous hyperslab selection cases */
    test_select_hyper_contig_dr(H5T_STD_U16LE, H5P_DEFAULT);
    test_select_hyper_contig_dr(H5T_STD_U16LE, plist_id);
    test_select_hyper_contig_dr(H5T_STD_U16BE, H5P_DEFAULT);
    test_select_hyper_contig_dr(H5T_STD_U16BE, plist_id);
    test_select_hyper_checker_board_dr(H5T_STD_U16LE, H5P_DEFAULT);
    test_select_hyper_checker_board_dr(H5T_STD_U16LE, plist_id);
    test_select_hyper_checker_board_dr(H5T_STD_U16BE, H5P_DEFAULT);
    test_select_hyper_checker_board_dr(H5T_STD_U16BE, plist_id);
    test_select_hyper_copy();   /* Test hyperslab selection copying code */
    test_select_point_copy();   /* Test point selection copying code */
    test_select_hyper_offset(); /* Test selection offset code with hyperslabs */
    test_select_hyper_offset2();/* Test more selection offset code with hyperslabs */
    test_select_point_offset(); /* Test selection offset code with elements */
    test_select_hyper_union();  /* Test hyperslab union code */
#ifdef NEW_HYPERSLAB_API
    test_select_hyper_union_stagger();  /* Test hyperslab union code for staggered slabs */
    test_select_hyper_union_3d();  /* Test hyperslab union code for 3-D dataset */
#endif /* NEW_HYPERSLAB_API */
    test_select_hyper_and_2d(); /* Test hyperslab intersection (AND) code for 2-D dataset */
    test_select_hyper_xor_2d(); /* Test hyperslab XOR code for 2-D dataset */
    test_select_hyper_notb_2d(); /* Test hyperslab NOTB code for 2-D dataset */
    test_select_hyper_nota_2d(); /* Test hyperslab NOTA code for 2-D dataset */

    /* test the random hyperslab I/O with the default property list for reading */
    test_select_hyper_union_random_5d(H5P_DEFAULT);  /* Test hyperslab union code for random 5-D hyperslabs */

    /* test random hyperslab I/O with a small buffer for reads */
    test_select_hyper_union_random_5d(plist_id);  /* Test hyperslab union code for random 5-D hyperslabs */

    /* Create a dataset transfer property list */
    fapl = H5Pcreate(H5P_FILE_ACCESS);
    CHECK(fapl, FAIL, "H5Pcreate");

    /* Get the default file access properties for caching */
    ret = H5Pget_cache(fapl, &mdc_nelmts, &rdcc_nelmts, &rdcc_nbytes, &rdcc_w0);
    CHECK(ret, FAIL, "H5Pget_cache");

    /* Increase the size of the raw data cache */
    rdcc_nbytes = 10 * 1024 * 1024;

    /* Set the file access properties for caching */
    ret = H5Pset_cache(fapl, mdc_nelmts, rdcc_nelmts, rdcc_nbytes, rdcc_w0);
    CHECK(ret, FAIL, "H5Pset_cache");

    /* Test reading in a large hyperslab with a chunked dataset */
    test_select_hyper_chunk(fapl, H5P_DEFAULT);

    /* Test reading in a large hyperslab with a chunked dataset a small amount at a time */
    test_select_hyper_chunk(fapl, plist_id);

    /* Close file access property list */
    ret = H5Pclose(fapl);
    CHECK(ret, FAIL, "H5Pclose");

    /* Close dataset transfer property list */
    ret = H5Pclose(plist_id);
    CHECK(ret, FAIL, "H5Pclose");

    /* More tests for checking validity of selections */
    test_select_valid();

    /* Tests for combining "all" and "none" selections with hyperslabs */
    test_select_combine();

    /* Test filling selections */
    /* (Also tests iterating through each selection */
    test_select_fill_all();
    test_select_fill_point(NULL);
    test_select_fill_point(offset);
    test_select_fill_hyper_simple(NULL);
    test_select_fill_hyper_simple(offset);
    test_select_fill_hyper_regular(NULL);
    test_select_fill_hyper_regular(offset);
    test_select_fill_hyper_irregular(NULL);
    test_select_fill_hyper_irregular(offset);

    /* Test 0-sized selections */
    test_select_none();

    /* Test selections on scalar dataspaces */
    test_scalar_select();
    test_scalar_select2();
    test_scalar_select3();

    /* Test "same shape" routine */
    test_shape_same();

    /* Test "same shape" routine for selections of different rank */
    test_shape_same_dr();

    /* Test "re-build" routine */
    test_space_rebuild();


    /* Test point selections in chunked datasets */
    test_select_point_chunk();

    /* Test scalar dataspaces in chunked datasets */
    test_select_scalar_chunk();

    /* Test using selection offset on hyperslab in chunked dataset */
    test_select_hyper_chunk_offset();
    test_select_hyper_chunk_offset2();

    /* Test selection bounds with & without offsets */
    test_select_bounds();

    /* Test 'regular' hyperslab query routines */
    test_hyper_regular();

}   /* test_select() */


/*-------------------------------------------------------------------------
 * Function:	cleanup_select
 *
 * Purpose:	Cleanup temporary test files
 *
 * Return:	none
 *
 * Programmer:	Albert Cheng
 *              July 2, 1998
 *
 * Modifications:
 *
 *-------------------------------------------------------------------------
 */
void
cleanup_select(void)
{
    remove(FILENAME);
}

