/*
 * Copyright (C) 2014, United States Government, as represented by the
 * Administrator of the National Aeronautics and Space Administration.
 * All rights reserved.
 *
 * The Java Pathfinder core (jpf-core) platform is 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 gov.nasa.jpf.util;

import java.util.Arrays;

/**
 * Wrapper for int[] that provides proper equals() and hashCode() methods.
 */
public class IntArray {
  public final int[] data;
  
  public IntArray(int size) {
    data = new int[size];
  }
  
  public IntArray(int[] data) {
    this.data = data;
  }
  
  @Override
  public int hashCode() {
    return Arrays.hashCode(data);
  }
  
  @Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (! (o instanceof IntArray)) return false;
    int[] thatData = ((IntArray)o).data;
    int[] thisData = this.data;
    return Arrays.equals(thisData, thatData);
  }
}