ObjFW  Diff

	PRE_IVAR->memchunks = memchunks;
	PRE_IVAR->memchunks[PRE_IVAR->memchunks_size] = ptr;
	PRE_IVAR->memchunks_size = memchunks_size;

	return self;
}

- (void*)getMemWithSize: (size_t)size
{
	void *ptr, **memchunks;
	size_t memchunks_size;

	if (size == 0)
		return NULL;

	PRE_IVAR->memchunks = memchunks;
	PRE_IVAR->memchunks[PRE_IVAR->memchunks_size] = ptr;
	PRE_IVAR->memchunks_size = memchunks_size;

	return ptr;
}

- (void*)getMemForNItems: (size_t)nitems
		  ofSize: (size_t)size
{
	if (nitems == 0 || size == 0)
		return NULL;

	if (nitems > SIZE_MAX / size)
		@throw [OFOutOfRangeException newWithClass: isa];

	return [self getMemWithSize: nitems * size];
}

- (void*)resizeMem: (void*)ptr
	    toSize: (size_t)size
{
	void **iter;

	if (ptr == NULL)
		return [self getMemWithSize: size];

	if (size == 0) {
		[self freeMem: ptr];
		return NULL;
	}

	iter = PRE_IVAR->memchunks + PRE_IVAR->memchunks_size;

	@throw [OFMemNotPartOfObjException newWithClass: isa
					     andPointer: ptr];
}

- (void*)resizeMem: (void*)ptr
	  toNItems: (size_t)nitems
	    ofSize: (size_t)size
{
	size_t memsize;

	if (ptr == NULL)
		return [self getMemForNItems: nitems
				      ofSize: size];

	if (nitems == 0 || size == 0) {
		[self freeMem: ptr];
		return NULL;
	}

	if (nitems > SIZE_MAX / size)