ObjFW  Diff

				uint16_t j;

				if OF_UNLIKELY (_slidingWindow == NULL)
					@throw [OFInvalidFormatException
					    exception];

				for (j = 0; j < CTX.length; j++) {
					uint16_t index;
					uint16_t idx;

					if OF_UNLIKELY (length == 0) {
						CTX.length -= j;
						return bytesWritten;
					}

					index = (_slidingWindowIndex -
					idx = (_slidingWindowIndex -
					    CTX.distance) & _slidingWindowMask;
					value = _slidingWindow[index];
					value = _slidingWindow[idx];

					buffer[bytesWritten++] = value;
					length--;

					_slidingWindow[_slidingWindowIndex] =
					    value;
					_slidingWindowIndex =