DoubleArrayComparator.java

/*
 * Class:        DoubleArrayComparator
 * Description:  Compares two double's arrays
 * Environment:  Java
 * Software:     SSJ 
 * Copyright (C) 2001  Pierre L'Ecuyer and Universite de Montreal
 * Organization: DIRO, Universite de Montreal
 * @author       
 * @since
 *
 *
 * Licensed 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 umontreal.ssj.util.multidimsort;
 
import java.util.Comparator;

public class DoubleArrayComparator implements Comparator<double[]> {
   private int j;

   public DoubleArrayComparator(int j) {
      this.j = j;
   }

   public int compare(double[] d1, double[] d2) {
      if (j >= d1.length || j >= d2.length)
         throw new IllegalArgumentException("Comparing in a" + "dimension larger than array dimension");
      return (d1[j] < d2[j] ? -1 : (d1[j] > d2[j] ? 1 : 0));
   }
 
}