src/main/java/org/apache/sysds/runtime/functionobjects/Xor.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.sysds.runtime.functionobjects;

import java.io.Serializable;

public class Xor extends ValueFunction implements Serializable
{
	private static final long serialVersionUID = -2847467729680510910L;

	private static Xor singleObj = null;

	private Xor() {
		// nothing to do here
	}

	public static Xor getXorFnObject() {
		if ( singleObj == null )
			singleObj = new Xor();
		return singleObj;
	}

	@Override
	public boolean execute(boolean in1, boolean in2) {
		return in1 != in2;
	}

	@Override
	public double execute(double in1, double in2) {
		return ((in1 != 0) != (in2 != 0)) ? 1 : 0;
	}
}