ObjFW  Diff

		/* 0-7 address the bit, 8 means fetch next byte */
		_bitIndex = 8;

		_distanceBits = distanceBits;
		_dictionaryBits = dictionaryBits;

		_slidingWindowMask = (1 << dictionaryBits) - 1;
		_slidingWindow = [self allocMemoryWithSize:
		_slidingWindow = [self allocZeroedMemoryWithSize:
		    _slidingWindowMask + 1];
		/* Avoid leaking data */
		memset(_slidingWindow, 0, _slidingWindowMask + 1);
	} @catch (id e) {
		[self release];
		@throw e;
	}

	return self;
}

		if OF_UNLIKELY (bits == 0) {
			_state = STATE_CODE_LEN_TREE_SINGLE;
			goto start;
		}

		_codesCount = bits;
		_codesReceived = 0;
		_codesLengths = [self allocMemoryWithSize: bits];
		_codesLengths = [self allocZeroedMemoryWithSize: bits];
		memset(_codesLengths, 0, bits);
		_skip = true;

		_state = STATE_CODE_LEN_TREE;
		goto start;
	case STATE_CODE_LEN_TREE:
		while (_codesReceived < _codesCount) {
			if OF_UNLIKELY (_currentIsExtendedLength) {

			_state = STATE_LITLEN_TREE_SINGLE;
			goto start;
		}

		_codesCount = bits;
		_codesReceived = 0;
		_codesLengths = [self allocMemoryWithSize: bits];
		_codesLengths = [self allocZeroedMemoryWithSize: bits];
		memset(_codesLengths, 0, bits);
		_skip = false;

		_treeIter = _codeLenTree;
		_state = STATE_LITLEN_TREE;
		goto start;
	case STATE_LITLEN_TREE:
		while (_codesReceived < _codesCount) {

		if OF_UNLIKELY (bits == 0) {
			_state = STATE_DIST_TREE_SINGLE;
			goto start;
		}

		_codesCount = bits;
		_codesReceived = 0;
		_codesLengths = [self allocMemoryWithSize: bits];
		_codesLengths = [self allocZeroedMemoryWithSize: bits];
		memset(_codesLengths, 0, bits);

		_treeIter = _codeLenTree;
		_state = STATE_DIST_TREE;
		goto start;
	case STATE_DIST_TREE:
		while (_codesReceived < _codesCount) {
			if OF_UNLIKELY (_currentIsExtendedLength) {