Java Zigzag Encode zigZagEncode(long n)

Description

Zig-zag encode: this helps transforming small signed numbers into small positive numbers.

License

Apache License

Declaration

public static long zigZagEncode(long n) 

Method Source Code

//package com.java2s;
/*//from  ww  w  .ja  va2  s  . c o m
 * Licensed to Elasticsearch under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch 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.
 */

public class Main {
    /** Zig-zag encode: this helps transforming small signed numbers into small positive numbers. */
    public static long zigZagEncode(long n) {
        return (n >> 63) ^ (n << 1);
    }
}

Related

1. zigzagEncode(byte[] data)
2. zigZagEncode(int i)
3. zigzagEncode(int input)
4. zigzagEncode(int input)
5. zigZagEncode(long l)
6. zigzagEncode(long val)
7. zigZagSort(int[] array)
8. zigzagToInt(final int n)