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Date:	Thu, 30 Jun 2005 14:12:36 +0200 (CEST)
Message-ID:	<6879888.1120133556579.JavaMail.adm-moff@moffice2.nsc.no>
From:	"Peter J. Acklam" <pjacklam AT online DOT no>
To:	<cygwin AT cygwin DOT com>
Subject:	SV: SV: Bug in printf ?
Cc:	<pjacklam AT online DOT no>
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References:	<20050630 DOT 202057 DOT 83613389 DOT haro AT kgt DOT co DOT jp> <SERRANOPL83mxMAKytt000002d1 AT SERRANO DOT CAM DOT ARTIMI DOT COM>
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Dave Korn [dave DOT korn AT artimi DOT com] wrote:

> haro AT kgt DOT co DOT jp wrote:
>
> > How come "0.125" gets printed as "0.12", and not "1.3"?
> 
> Absolutely, there's a rounding error of some sort.

For what it's worth: My Sunblade 100 running Solaris 9 has
Solaris' /bin/printf and GNU's printf as /usr/local/bin/printf
and both give "0.12", not "0.13".

I am quite sure it is the printf returning "0.13" that is buggy.
Note that the value "0.125" can be represented exactly with IEEE
double precision arithmetic, so inexact representation is not the
matter here.

Peter


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