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//start of Bits.java
//TEXT_STYLE:CODE=Shift_JIS(Japanese):RET_CODE=CRLF
/**
* Bits.java
*
* Copyright (C) 2002 Michel Ishizuka All rights reserved.
*
* ȉ̏ɓӂȂ\[XƃoCi`̍ĔzzƎgp
* ύX̗Lɂ炸B
*
* PD\[XR[h̍ĔzzɂĒ쌠\ ̏̃Xg
* щL̐ێȂĂ͂ȂȂB
*
* QDoCi`̍ĔzzɂĒ쌠\ ̏̃Xg
* щL̐gp ̑̔zz
* ܂ގɋLqȂȂȂB
*
* ̃\tgEFA͐Β˔ڂɂĖۏŒA̖
* IBłƂۏAilLƂۏɂƂǂ܂炸A
* Ȃ閾IшÎIȕۏȂB
* Β˔ڂ ̃\tgEFA̎gpɂ钼ړIAԐړIA
* IAȁAT^IȁA邢͕KRIȑQ(gpɂf[^
* AƖ̒f〈܂Ăv̈⎸Ai
* T[rX̓l邪AĂꂾɌ肳Ȃ
* Q)ɑāAȂ鎖Ԃ̌ƂȂƂĂA_̐
* C△ߎӔC܂ ȂӔC낤ƂAƂꂪs
* ŝׂ߂łƂĂA܂͂̂悤ȑQ̉\
* ĂƂĂ̐ӔCȂ̂ƂB
*/
package jp.gr.java_conf.dangan.io;
//import classes and interfaces
//import exceptions
/**
* rbĝ߂̃[eBeB\bhQB<br>
*
* <pre>
* -- revision history --
* $Log: Bits.java,v $
* Revision 1.0 2002/12/05 00:00:00 dangan
* first edition
* add to version control
*
* </pre>
*
* @author $Author: dangan $
* @version $Revision: 1.0 $
*/
public class Bits{
//------------------------------------------------------------------
// constructor
//------------------------------------------------------------------
// private Bits()
//------------------------------------------------------------------
/**
* ftHgRXgN^B
* gpsB
*/
private Bits(){ }
//------------------------------------------------------------------
// shared method
//------------------------------------------------------------------
// length of bits
//------------------------------------------------------------------
// public static int len( int val )
//------------------------------------------------------------------
/**
* val ̃rbgB
* val ͕Ȃ 32rbgƂ݂ȂB
* log2( (long)val & 0xFFFFFFFFL ) ̖߂l
* _ȉ̂Ă̂ƓB
*
* @param val l
*
* @return val ̃rbg
*/
public static int len( int val ){
int len = 0;
while( 0 != val ){
val >>>= 1;
len++;
}
return len;
}
}
//end of Bits.java
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