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From: "Ulrich Jakobus" <u DOT jakobus AT web DOT de>
To: "cygwin AT sourceware DOT cygnus DOT com" <cygwin AT sourceware DOT cygnus DOT com>
Date: Tue, 11 Jul 2000 07:25:46 +0200
Reply-To: "Ulrich Jakobus" <u DOT jakobus AT web DOT de>
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Subject: Re: Net version 1.1.0: gcc 2.95.2-2 compiler bug

Hello,

concerning the following problem:

> On Mon, Jul 10, 2000 at 01:42:35PM -1000, Jim Heasley wrote:
> >In porting some astronomical data handling software from linux/unix to
> >Cygwin (the latest nework release, 1.1.0 I believe), I discovered an
> >error in how gcc 2.95.2-2 generates output of a floating or double
> >variable set to 0.0 when formatted with a %E format.  I didn't get any
> >hits on this problem in the FAQ or mail lists.  The following little
> >test program illustrates the problem:
>
> To investigate this problem, please check out the 'newlib' part of the
> cygwin package.  That's where things like printf are implemented.
> 
> cgf

Please see the earlier discussions about that problem in 
this mailing list:

 - cygwin-1.1.2: printf("%e") broken
   http://sources.redhat.com/ml/cygwin/2000-06/msg00358.html

 - Latest gcc/cygwin - bug in %e format specifier?
   http://sources.redhat.com/ml/cygwin/2000-06/msg00730.html

 - Re: Latest gcc/cygwin - bug in %e format specifier?
   http://sources.redhat.com/ml/cygwin/2000-06/msg00745.html

The last reference has a fix in vfprintf.c:

2000-06-15  DJ Delorie  <dj AT cygnus DOT com>

        * libc/stdio/vfprintf.c: pad 0.0 correctly with %e


Ulrich




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