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#include "bltInt.h"
#ifndef linux
#ifdef HAVE_MALLOC_H
#include <malloc.h>
#endif /* HAVE_MALLOC_H */
#endif
/*
* Blt_MallocProcPtr, Blt_FreeProcPtr --
*
* These global variables allow you to override the default
* memory allocation/deallocation routines, simply by setting the
* pointers to your own C functions. By default, we try to use
* the same memory allocation scheme that Tcl is using: generally
* that's Tcl_Alloc and Tcl_Free.
*/
#ifdef WIN32
#ifdef __CYGWIN__
extern char *Tcl_Alloc _ANSI_ARGS_((unsigned int size));
extern void Tcl_Free _ANSI_ARGS_((char * ptr));
#endif /*__CYGWIN__*/
Blt_MallocProc *Blt_MallocProcPtr = Tcl_Alloc;
Blt_FreeProc *Blt_FreeProcPtr = Tcl_Free;
#else
/*
* Try to use the same memory allocator/deallocator that Tcl is
* using. Before 8.1 it used malloc/free.
*/
#if (TCL_VERSION_NUMBER >= _VERSION(8,1,0))
/*
* We're pointing to the private TclpAlloc/TclpFree instead of public
* Tcl_Alloc/Tcl_Free routines because they don't automatically cause
* a panic when not enough memory is available. There are cases (such
* as allocating a very large vector) where it's recoverable.
*/
EXTERN Blt_MallocProc TclpAlloc;
EXTERN Blt_FreeProc TclpFree;
Blt_MallocProc *Blt_MallocProcPtr = TclpAlloc;
Blt_FreeProc *Blt_FreeProcPtr = TclpFree;
#else
Blt_MallocProc *Blt_MallocProcPtr = malloc;
Blt_FreeProc *Blt_FreeProcPtr = free;
#endif /* >= 8.1.0 */
#endif /* WIN32 */
void *
Blt_Calloc(nElems, sizeOfElem)
unsigned int nElems;
size_t sizeOfElem;
{
char *ptr;
size_t size;
size = nElems * sizeOfElem;
ptr = Blt_Malloc(size);
if (ptr != NULL) {
memset(ptr, 0, size);
}
return ptr;
}
/*
*----------------------------------------------------------------------
*
* Blt_Strdup --
*
* Create a copy of the string from heap storage.
*
* Results:
* Returns a pointer to the need string copy.
*
*----------------------------------------------------------------------
*/
char *
Blt_Strdup(string)
CONST char *string;
{
size_t size;
char *ptr;
size = strlen(string) + 1;
ptr = Blt_Malloc(size * sizeof(char));
if (ptr != NULL) {
strcpy(ptr, string);
}
return ptr;
}
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