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From: yanagi@astec.co.jp (Sawayanagi Yosirou)
Subject: Re: how to get highest bit
In-Reply-To: sakamoto@sm.sony.co.jp's message of 30 Jul 1996 09:36:55 GMT
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 <4tkl3n$idl@csdnews.sm.sony.co.jp>
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Date: Wed, 31 Jul 1996 11:38:29 GMT
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In article <4tkl3n$idl@csdnews.sm.sony.co.jp> sakamoto@sm.sony.co.jp (Tomohiko Sakamoto) writes:

>In article <YANAGI.96Jul30140518@chicago.astec.co.jp>,
>yanagi@astec.co.jp (Sawayanagi Yosirou) writes:
>>   $BA0<T$OIi?t$,(B2$B$NJd?tI=8=$G$J$/$F$bBg>fIW$J5$$,$7$F$$$k$s$G$9$1$l$I$I(B
>> $B$&$J$s$G$7$g$&$+!"$A$g$C$H5$$K$J$C$?$b$N$G!#(B

>$B:G=i$NDEED$5$s$N<ALd$K!"(B

>> $B@0?t$NCM$rJ];}$9$kJQ?t$,$"$k!J$?$H$($P(B unsigned int$B!K!#(B

>$B$H$"$j$^$7$?!#(B
>unsigned int r; $B$J$i!"(Br & (r ^ (r - 1)) == r & -r  $B$G$9!#(B

<$B0J2<N,(B>

  $B$I$&$b>\$7$$@bL@$"$j$,$H$&$4$6$$$^$9!#(B
  unsigned int $B$J$i(B C $B$N!V;EMM!W$+$i$=$N$h$&$K$J$k$HM}2r$G$-$?$H;W$$$^(B
$B$9!#(B
  
  $B:#2s$NItJ,$K$D$$$F;W$$$^$7$?$,(B ANSI C $B$OIi?t$H$7$F(B2$B$NJd?tI=8=$,A0Ds(B
$B$G$J$$$H:Y$+$$$H$3$m$G;EMM$H$7$FE}0l$,$H$l$J$/$J$C$F$7$^$&$h$&$K;W$$$^(B
$B$9$M!#(B


$B_7(B $BLx(B  $B4n(B $BO:(B $B!J%"%9%F%C%/!K(B

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