cn.sliew.milky.io

Class BitUtil

java.lang.Object

cn.sliew.milky.io.BitUtil

public final class BitUtil
extends Object

A variety of high efficiency bit twiddling routines.

Method Summary

Modifier and Type	Method and Description
static int	zigZagDecode(int i) Decode an int previously encoded with zigZagEncode(int).
static long	zigZagDecode(long l) Decode a long previously encoded with zigZagEncode(long).
static int	zigZagEncode(int i) Same as zigZagEncode(long) but on integers.
static long	zigZagEncode(long l) Zig-zag encode the provided long.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

zigZagEncode

public static int zigZagEncode(int i)

Same as zigZagEncode(long) but on integers.

zigZagEncode

public static long zigZagEncode(long l)

Zig-zag encode the provided long. Assuming the input is a signed long whose absolute value can be stored on n bits, the returned value will be an unsigned long that can be stored on n+1 bits.

zigZagDecode

public static int zigZagDecode(int i)

Decode an int previously encoded with zigZagEncode(int).

zigZagDecode

public static long zigZagDecode(long l)

Decode a long previously encoded with zigZagEncode(long).