ObjFW  Diff

				      sizeof(wchar_t)]) == NULL) {
		/* FIXME: Add error handling */
		return nil;
	}

	wstring = newstr;

	memcpy(wstring + length, wstr, strlength);
	memcpy(wstring + length * sizeof(wchar_t), wstr,
	    strlength * sizeof(wchar_t));
	wstring[newlen] = '\0';

	length = newlen;

	return self;
}
@end