IntMath.php

<?php
/**
 * 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.
 */

namespace Apache\Rocketmq;

class IntMath {

    /**
     * Compute the mathematical modulus (always non-negative).
     *
     * @param int $a The dividend
     * @param int $m The modulus
     * @return int The non-negative remainder
     */
    public static function mod($a, $m)
    {
        $result = $a % $m;
        return $result < 0 ? $result + $m : $result;
    }
}