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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  You may obtain a copy of the License at
8    *
9    *      http://www.apache.org/licenses/LICENSE-2.0
10   *
11   * Unless required by applicable law or agreed to in writing, software
12   * distributed under the License is distributed on an "AS IS" BASIS,
13   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14   * See the License for the specific language governing permissions and
15   * limitations under the License.
16   */
17  package org.apache.commons.rng.simple.internal;
18  
19  import org.apache.commons.rng.core.util.NumberFactory;
20  
21  /**
22   * Creates an {@code int[]} from a {@code long[]}.
23   *
24   * @since 1.0
25   */
26  public class LongArray2IntArray implements SeedConverter<long[], int[]> {
27      /** {@inheritDoc} */
28      @Override
29      public int[] convert(long[] seed) {
30          final int[] out = new int[seed.length * 2];
31          for (int i = 0; i < seed.length; i++) {
32              final long current = seed[i];
33              out[i] = NumberFactory.extractLo(current);
34              out[seed.length + i] = NumberFactory.extractHi(current);
35          }
36  
37          return out;
38      }
39  }