Exodus 7.10

Functions
ex_get_glob_var_time_int.c File Reference
`#include "exodusII.h"`
`#include "exodusII_int.h"`

## Functions
int | ex_get_glob_var_time_int (int exoid, int glob_var_index, int beg_time_step, int end_time_step, void *glob_var_vals)

## Function Documentation

## ◆ ex_get_glob_var_time_int()

int ex_get_glob_var_time_int | ( | int | exoid,
|  | int | glob_var_index,
|  | int | beg_time_step,
|  | int | end_time_step,
|  | void * | glob_var_vals
| ) |  |

The function ex_get_glob_var_time() reads the values of a single global variable through a specified number of time steps. Memory must be allocated for the global variable values array before this function is invoked.

Because global variables are floating point values, the application code must declare the array passed to be the appropriate type (float or double) to match the compute word size passed in ex_create() or ex_open().

Returns
  In case of an error, ex_get_glob_var_time() returns a negative number; a warning will return a positive number. Possible causes of errors include:
  - data file not properly opened with call to ex_create() or ex_open()
  - specified global variable does not exist.
  - a warning value is returned if no global variables are stored in the file.

Parameters

  | exoid | exodus file ID returned from a previous call to ex_create() or ex_open().
  | glob_var_index | The index of the desired global variable. The first variable has an index of 1.
  | beg_time_step | The beginning time step for which a global variable value is desired. This is not a time value but rather a time step number, as described under ex_put_time(). The first time step is 1.
  | end_time_step | The last time step for which a global variable value is desired. If negative, the last time step in the database will be used. The first time step is 1.
  [out] | glob_var_vals | Returned array of (end_time_step - beg_time_step + 1) values for the glob_var_index$^{th}$ global variable.

The following is an example of using this function:

int error, exoid, num_time_steps, var_index;
int beg_time, end_time;
float *var_values;
num_time_steps = ex_inquire_int(exoid, EX_INQ_TIME);
var_index = 1;
beg_time = 1;
end_time = -1;
var_values = (float *) calloc (num_time_steps, sizeof(float));
error = ex_get_glob_var_time(exoid, var_index, beg_time,
end_time, var_values);