ObjFW  Diff

	copy->_iVars = copy->_iVarsData.mutableItems;
	copy->_allowsSwappableMemory = _allowsSwappableMemory;
	copy->_calculated = _calculated;

	return copy;
}

- (void)updateWithBuffer: (const void *)buffer_
		  length: (size_t)length
{
	const unsigned char *buffer = buffer_;

	if (_calculated)
		@throw [OFHashAlreadyCalculatedException
		    exceptionWithObject: self];