ObjFW  Diff

	OF_HASH_INIT(hash);
	for (i = 0; i < length; i++)
		OF_HASH_ADD(hash, string[i]);
	OF_HASH_FINALIZE(hash);

	return hash;
}

- (size_t)indexOfFirstOccurrenceOfString: (OFString*)str
{
	const char *str_c = [str cString];
	size_t str_len = [str length];
	size_t i;

	if (str_len == 0)
		return 0;

	if (str_len > length)
		return SIZE_MAX;

	for (i = 0; i <= length - str_len; i++)
		if (!memcmp(string + i, str_c, str_len))
			return i;

	return SIZE_MAX;
}

- (size_t)indexOfLastOccurrenceOfString: (OFString*)str
{
	const char *str_c = [str cString];
	size_t str_len = [str length];
	size_t i;

	if (str_len == 0)
		return length;

	if (str_len > length)
		return SIZE_MAX;

	for (i = length - str_len;; i--) {
		if (!memcmp(string + i, str_c, str_len))
			return i;

		/* Did not match and we're at the last char */
		if (i == 0)
			return SIZE_MAX;
	}
}

- (OFString*)substringFromIndex: (size_t)start
			toIndex: (size_t)end
{
	char *tmp;
	size_t len;
	OFString *ret;