/*
 *  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.groovy.json.internal;

/**
 * Array helpers used by the JSON internals.
 */
public class ArrayUtils {

    /**
     * Copies a character range into a new array.
     *
     * @param source the source array
     * @param startIndex the inclusive start index
     * @param endIndex the exclusive end index
     * @return a new array containing the requested range
     */
    public static char[] copyRange(char[] source, int startIndex, int endIndex) {
        int len = endIndex - startIndex;
        char[] copy = new char[len];
        System.arraycopy(source, startIndex, copy, 0, Math.min(source.length - startIndex, len));
        return copy;
    }
}
