| /* |
| * 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; |
| |
| public class Multiply2 extends ValueFunction |
| { |
| private static final long serialVersionUID = -3762789087715600938L; |
| |
| private static Multiply2 singleObj = null; |
| |
| private Multiply2() { |
| // nothing to do here |
| } |
| |
| public static Multiply2 getMultiply2FnObject() { |
| if ( singleObj == null ) |
| singleObj = new Multiply2(); |
| return singleObj; |
| } |
| |
| @Override |
| public double execute(double in1) { |
| return in1 + in1; //ignore in2 because always 2; |
| } |
| |
| @Override |
| public double execute(double in1, double in2) { |
| return in1 + in1; //ignore in2 because always 2; |
| } |
| |
| @Override |
| public double execute(long in1, long in2) { |
| //for robustness regarding long overflows (only used for scalar instructions) |
| double dval = ((double)in1 + in2); |
| if( dval > Long.MAX_VALUE ) |
| return dval; |
| |
| return in1 + in1; //ignore in2 because always 2; |
| } |
| } |