ObjFW  Diff

- append: (OFString*)str
{
	return [self appendCString: [str cString]];
}

- appendCString: (const char*)str
{
	char   *newstr;
	size_t newlen, strlength;
	size_t strlength;

	strlength = strlen(str);

	switch (check_utf8(str, strlength)) {
	case 1:
		is_utf8 = YES;
		break;
	case -1:
		@throw [OFInvalidEncodingException newWithClass: isa];
	}

	newlen = length + strlength;
	newstr = [self resizeMem: string
	string = [self resizeMem: string
			  toSize: newlen + 1];

	memcpy(newstr + length, str, strlength + 1);
			  toSize: length + strlength + 1];
	memcpy(string + length, str, strlength + 1);

	length = newlen;
	length += strlength;
	string = newstr;

	return self;
}

- appendWithFormatCString: (const char*)fmt, ...
{
	id ret;