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: Eric Blake <eblake <at> redhat.com>
Cc: tracker <at> debbugs.gnu.org
Subject: bug#8732: closed (uinttostr: comparison of unsigned expression <
 0 is always false)
Date: Wed, 25 May 2011 21:30:04 +0000

[Message part 1 (text/plain, inline)]

Your message dated Wed, 25 May 2011 15:29:12 -0600
with message-id <4DDD74A8.8000106 <at> redhat.com>
and subject line Re: bug#8732: uinttostr: comparison of unsigned expression < 0 is always	false
has caused the GNU bug report #8732,
regarding uinttostr: comparison of unsigned expression < 0 is always false
to be marked as done.

(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)


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

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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

[Message part 3 (message/rfc822, inline)]

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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