IntArray2LongArray.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.commons.rng.simple.internal;

/**
 * Creates a {@code long[]} from an {@code int[]}.
 *
 * <p>Note: From version 1.5 this conversion uses the int bytes to compose the long bytes
 * in little-endian order.
 * The output {@code long[]} can be converted back using {@link LongArray2IntArray}.
 *
 * @since 1.0
 */
public class IntArray2LongArray implements SeedConverter<int[], long[]> {
    /** Create an instance. */
    public IntArray2LongArray() {}

    /** {@inheritDoc} */
    @Override
    public long[] convert(int[] seed) {
        // Full length conversion
        return Conversions.intArray2LongArray(seed, Conversions.longSizeFromIntSize(seed.length));
    }
}