ObjFW  Diff

- (void)appendString: (OFString*)string
{
	if (string == nil)
		@throw [OFInvalidArgumentException newWithClass: isa
						       selector: _cmd];

	[self appendCStringWithoutUTF8Checking: [string cString]
	[self appendCString: [string cString]];
					length: [string cStringLength]];

	if (string->s->isUTF8)
		s->isUTF8 = YES;
}

- (void)appendFormat: (OFConstantString*)format, ...
{
	va_list arguments;

	va_start(arguments, format);