GNU bug report logs - #8732
uinttostr: comparison of unsigned expression < 0 is always false

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: "Voelker, Bernhard" <bernhard.voelker <at> siemens-enterprise.com>
Subject: bug#8732: closed (Re: bug#8732: uinttostr: comparison of unsigned
 expression < 0 is always	false)
Date: Wed, 25 May 2011 21:30:04 +0000

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Your bug report

#8732: uinttostr: comparison of unsigned expression < 0 is always false

which was filed against the coreutils package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 8732 <at> debbugs.gnu.org.

-- 
8732: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8732
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Eric Blake <eblake <at> redhat.com>
Cc: 8732-done <at> debbugs.gnu.org, "Voelker,
	Bernhard" <bernhard.voelker <at> siemens-enterprise.com>
Subject: Re: bug#8732: uinttostr: comparison of unsigned expression < 0 is
	always	false
Date: Wed, 25 May 2011 15:29:12 -0600

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tag 8732 wontfix
close 8732
done


On 05/25/2011 01:54 PM, Eric Blake wrote:
> On 05/25/2011 01:23 AM, Voelker, Bernhard wrote:
>> Hi *,
>>
>> building coreutils-8.12 with '--enable-gcc-warnings' fails on my SLES 10.3 server:
>>
>>   CC       uinttostr.o
>> cc1: warnings being treated as errors
>> In file included from uinttostr.c:3:
>> anytostr.c: In function 'uinttostr':
>> anytostr.c:39: warning: comparison of unsigned expression < 0 is always false
> 
> the warning is spurious.  But we don't know how
> to shut up gcc.

You're not the first to hit this, either:

http://lists.gnu.org/archive/html/bug-gnulib/2010-10/msg00435.html

Since our party line back then was to "upgrade gcc or quit using -Werror
with old gcc", I'm marking this as a wontfix; but if you can come up
with a patch, we can reopen it.

-- 
Eric Blake   eblake <at> redhat.com    +1-801-349-2682
Libvirt virtualization library http://libvirt.org

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From: "Voelker, Bernhard" <bernhard.voelker <at> siemens-enterprise.com>
To: "bug-coreutils <at> gnu.org" <bug-coreutils <at> gnu.org>
Subject: uinttostr: comparison of unsigned expression < 0 is always false
Date: Wed, 25 May 2011 09:23:50 +0200

Hi *,

building coreutils-8.12 with '--enable-gcc-warnings' fails on my SLES 10.3 server:

  CC       uinttostr.o
cc1: warnings being treated as errors
In file included from uinttostr.c:3:
anytostr.c: In function 'uinttostr':
anytostr.c:39: warning: comparison of unsigned expression < 0 is always false

gcc --version
gcc (GCC) 4.1.2 20070115 (SUSE Linux)

Have a nice day,
Berny

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