4coder-non-source/test_data/lots_of_files/calloc.c

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2023-09-30 01:17:40 +00:00
/***
*calloc.c - allocate storage for an array from the heap
*
* Copyright (c) Microsoft Corporation. All rights reserved.
*
*Purpose:
* Defines the calloc() function.
*
*******************************************************************************/
#include <malloc.h>
#include <string.h>
#include <winheap.h>
#include <windows.h>
#include <internal.h>
#include <mtdll.h>
#include <dbgint.h>
#include <rtcsup.h>
void * __cdecl _calloc_impl (size_t num, size_t size, int * errno_tmp);
/***
*void *calloc(size_t num, size_t size) - allocate storage for an array from
* the heap
*
*Purpose:
* Allocate a block of memory from heap big enough for an array of num
* elements of size bytes each, initialize all bytes in the block to 0
* and return a pointer to it.
*
*Entry:
* size_t num - number of elements in the array
* size_t size - size of each element
*
*Exit:
* Success: void pointer to allocated block
* Failure: NULL
*
*Uses:
*
*Exceptions:
*
*******************************************************************************/
void * __cdecl _calloc_base (size_t num, size_t size)
{
int errno_tmp = 0;
void * pv = _calloc_impl(num, size, &errno_tmp);
if ( pv == NULL && errno_tmp != 0 && _errno())
{
errno = errno_tmp; // recall, #define errno *_errno()
}
return pv;
}