dbgmalloc.c

C语言库函数的原型,有用的拿去

/***
*dbgmalloc.c - Debug CRT Heap Function of malloc()
*
*       Copyright (c) Microsoft Corporation. All rights reserved.
*
*Purpose:
*       Defines debug versions of heap function malloc().
*
*******************************************************************************/

#ifdef _DEBUG

#include <windows.h>
#include <winheap.h>
#include <ctype.h>
#include <dbgint.h>
#include <crtdbg.h>
#include <rtcsup.h>
#include <internal.h>
#include <limits.h>
#include <malloc.h>
#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <locale.h>
#include <mtdll.h>
#include <setlocal.h>

#pragma warning(disable:4390)


/***
*void *malloc() - Get a block of memory from the debug heap
*
*Purpose:
*       Allocate of block of memory of at least size bytes from the heap and
*       return a pointer to it.
*
*       Allocates 'normal' memory block.
*
*Entry:
*       size_t          nSize       - size of block requested
*
*Exit:
*       Success:  Pointer to memory block
*       Failure:  NULL (or some error value)
*
*Exceptions:
*
*******************************************************************************/

extern "C" _CRTIMP void * __cdecl malloc (
        size_t nSize
        )
{
        void *res = _nh_malloc_dbg(nSize, _newmode, _NORMAL_BLOCK, NULL, 0);

        RTCCALLBACK(_RTC_Allocate_hook, (res, nSize, 0));

        return res;
}

#endif  /* _DEBUG */