extern "C" void* __cdecl _aligned_realloc_base(
void* const block,
size_t const size,
size_t const alignment
)
{
return _aligned_offset_realloc_base(block, size, alignment, 0);
}
extern "C" _CRTRESTRICT void* __cdecl _aligned_offset_realloc(
void* const block,
size_t const size,
size_t const alignment,
size_t const offset
)
{
#ifdef _DEBUG
return _aligned_offset_realloc_dbg(block, size, alignment, offset, nullptr, 0);
#else
return _aligned_offset_realloc_base(block, size, alignment, offset);
#endif
}
extern "C" void* __cdecl _aligned_offset_recalloc_base(
void* block,
size_t count,
size_t size,
size_t align,
size_t offset
)
{
size_t user_size = 0; /* wanted size, passed to aligned realoc */
size_t start_fill = 0; /* location where aligned recalloc starts to fill with 0 */
/* filling must start from the end of the previous user block */
void * retptr = nullptr; /* result of aligned recalloc*/
/* ensure that (size * num) does not overflow */
if (count > 0)
{
_VALIDATE_RETURN_NOEXC((_HEAP_MAXREQ / count) >= size, ENOMEM, nullptr);
}
user_size = size * count;
if (block != nullptr)
{
start_fill = _aligned_msize(block, align, offset);
}
retptr = _aligned_offset_realloc_base(block, user_size, align, offset);
if (retptr != nullptr)
{
if (start_fill < user_size)
{
memset ((char*)retptr + start_fill, 0, user_size - start_fill);
}
}
return retptr;
}
ALLOC_CALL void *__cdecl _aligned_offset_realloc(void *memblock, size_t size, size_t align, size_t offset)
{
return _aligned_offset_realloc_base( memblock, size, align, offset );
}
