distributedlog-common/src/main/java/org/apache/distributedlog/common/util/MathUtil.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.distributedlog.common.util;

/**
 * Helpers for math related utils.
 */
public class MathUtil {

  public static int signSafeMod(long dividend, int divisor) {
    int mod = (int) (dividend % divisor);

    if (mod < 0) {
      mod += divisor;
    }

    return mod;
  }

}