ObjFW  Diff

	void *pool = objc_autoreleasePoolPush(), *pool2;
	const of_unichar_t *unicodeString;
	const of_unichar_t *searchString = [string unicodeString];
	size_t searchLength = [string length];
	size_t replacementLength = [replacement length];
	size_t i;

	if (range.length > SIZE_MAX - range.location ||
	    range.location + range.length > [self length])
		@throw [OFOutOfRangeException exceptionWithClass: [self class]];

	if (searchLength > range.length) {
		objc_autoreleasePoolPop(pool);
		return;
	}