void * __cdecl _recalloc_base(void * memblock, size_t count, size_t size)
{
void * retp = NULL;
size_t size_orig = 0, old_size = 0;
/* ensure that (size * count) does not overflow */
if (count > 0)
{
_VALIDATE_RETURN_NOEXC((_HEAP_MAXREQ / count) >= size, ENOMEM, NULL);
}
size_orig = size * count;
if (memblock != NULL)
old_size = _msize(memblock);
retp = _realloc_base(memblock, size_orig);
if (retp != NULL && old_size < size_orig)
{
memset ((char*)retp + old_size, 0, size_orig - old_size);
}
return retp;
}
void * __cdecl _realloc_crt(void *ptr, size_t size)
{
return _realloc_base( ptr, size );
}
