COMP: Added KWSYS_STL_HAS_ALLOCATOR_MAX_SIZE_ARGUMENT check for non-standard...

COMP: Added KWSYS_STL_HAS_ALLOCATOR_MAX_SIZE_ARGUMENT check for non-standard argument to stl allocator<>::max_size method.  Needed for kwsys hashtable to compile on Sun CC.

CMakeLists.txt

@@ -184,6 +184,8 @@ KWSYS_PLATFORM_CXX_TEST(KWSYS_STL_STRING_HAVE_NEQ_CHAR
   "Checking whether stl string has operator!= for char*" DIRECT)
 KWSYS_PLATFORM_CXX_TEST(KWSYS_STL_HAS_ALLOCATOR_REBIND
   "Checking for rebind member of stl allocator" DIRECT)
+KWSYS_PLATFORM_CXX_TEST(KWSYS_STL_HAS_ALLOCATOR_MAX_SIZE_ARGUMENT
+  "Checking for non-standard argument to stl allocator<>::max_size" DIRECT)
 IF(KWSYS_IOS_USE_ANSI)
   # ANSI streams always have string operators.
   SET(KWSYS_STL_STRING_HAVE_OSTREAM 1)

Configure.hxx.in

@@ -96,6 +96,9 @@
 /* Whether the stl allocator has rebind.  */
 #define @KWSYS_NAMESPACE@_STL_HAS_ALLOCATOR_REBIND @KWSYS_STL_HAS_ALLOCATOR_REBIND@
 
+/* Whether the stl allocator has a size argument for max_size.  */
+#define @KWSYS_NAMESPACE@_STL_HAS_ALLOCATOR_MAX_SIZE_ARGUMENT @KWSYS_STL_HAS_ALLOCATOR_MAX_SIZE_ARGUMENT@
+
 /* Whether struct stat has the st_mtim member for high resolution times.  */
 #define @KWSYS_NAMESPACE@_STAT_HAS_ST_MTIM @KWSYS_STAT_HAS_ST_MTIM@
 
@@ -124,6 +127,7 @@
 # define KWSYS_CXX_DEFINE_SPECIALIZATION @KWSYS_NAMESPACE@_CXX_DEFINE_SPECIALIZATION
 # define KWSYS_CXX_DECL_TYPENAME        @KWSYS_NAMESPACE@_CXX_DECL_TYPENAME
 # define KWSYS_STL_HAS_ALLOCATOR_REBIND @KWSYS_NAMESPACE@_STL_HAS_ALLOCATOR_REBIND
+# define KWSYS_STL_HAS_ALLOCATOR_MAX_SIZE_ARGUMENT @KWSYS_NAMESPACE@_STL_HAS_ALLOCATOR_MAX_SIZE_ARGUMENT
 #endif
 
 #endif

hashtable.hxx.in

@@ -119,11 +119,18 @@ public:
       alloc_.deallocate(static_cast<alloc_pointer>(static_cast<void*>(p)), n*chunk());
       }
     }
+#if @KWSYS_NAMESPACE@_STL_HAS_ALLOCATOR_MAX_SIZE_ARGUMENT
+  size_type max_size(size_type s) const throw()
+    {
+    return alloc_.max_size(s);
+    }
+#else
   size_type max_size() const throw()
     {
     size_type n = alloc_.max_size() / chunk();
     return n>0? n:1;
     }
+#endif
   void construct(pointer p, const value_type& val) { new (p) value_type(val); }
   void destroy(pointer p) { (void)p; p->~value_type(); }
 private:

kwsysPlatformCxxTests.cxx

@@ -122,6 +122,19 @@ int main()
 }
 #endif
 
+#ifdef TEST_KWSYS_STL_HAS_ALLOCATOR_MAX_SIZE_ARGUMENT
+#include <memory>
+void f(kwsys_stl::allocator<char> const& a)
+{
+  a.max_size(sizeof(int));
+};
+int main()
+{
+  f(kwsys_stl::allocator<char>());
+  return 0;
+}
+#endif
+
 #ifdef TEST_KWSYS_STAT_HAS_ST_MTIM
 #include <sys/types.h>
 #include <sys/stat.h>