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* Re: c++/10447: signed != unsigned when signedness is unimportand
@ 2003-04-21 14:02 ehrhardt
0 siblings, 0 replies; 3+ messages in thread
From: ehrhardt @ 2003-04-21 14:02 UTC (permalink / raw)
To: aryeh, gcc-bugs, gcc-prs, nobody
Synopsis: signed != unsigned when signedness is unimportand
State-Changed-From-To: open->closed
State-Changed-By: cae
State-Changed-When: Mon Apr 21 14:02:47 2003
State-Changed-Why:
Not a bug. Operator preference is different than you think. -Wall
would have told you.
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=10447
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: c++/10447: signed != unsigned when signedness is unimportand
@ 2003-04-21 15:36 Aryeh M. Friedman
0 siblings, 0 replies; 3+ messages in thread
From: Aryeh M. Friedman @ 2003-04-21 15:36 UTC (permalink / raw)
To: nobody; +Cc: gcc-prs
The following reply was made to PR c++/10447; it has been noted by GNATS.
From: "Aryeh M. Friedman" <aryeh@m-net.arbornet.org>
To: aryeh@m-net.arbornet.org, ehrhardt@mathematik.uni-ulm.de,
gcc-bugs@gcc.gnu.org, gcc-gnats@gcc.gnu.org, gcc-prs@gcc.gnu.org,
nobody@gcc.gnu.org
Cc:
Subject: Re: c++/10447: signed != unsigned when signedness is unimportand
Date: Mon, 21 Apr 2003 11:12:36 -0400 (EDT)
I was using -Wall (command line was -Wall -W -Werror)
--Aryeh
^ permalink raw reply [flat|nested] 3+ messages in thread
* c++/10447: signed != unsigned when signedness is unimportand
@ 2003-04-21 5:16 aryeh
0 siblings, 0 replies; 3+ messages in thread
From: aryeh @ 2003-04-21 5:16 UTC (permalink / raw)
To: gcc-gnats
>Number: 10447
>Category: c++
>Synopsis: signed != unsigned when signedness is unimportand
>Confidential: no
>Severity: critical
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Mon Apr 21 05:16:01 UTC 2003
>Closed-Date:
>Last-Modified:
>Originator: aryeh@m-net.arbornet.org
>Release: gcc version 2.95.3 20010315 (release) [FreeBSD]
>Organization:
>Environment:
FreeBSD 7of9 4.6-RELEASE FreeBSD 4.6-RELEASE #0: Tue Jun 11 06:14:12 GMT 2002 murray@builder.freebsdmall.com:/usr/src/sys/compile/GENERIC i386
>Description:
the following code fails (i.e. prints "bad"):
if(0x80000000&((signed long) 0xff000000) ==
0x80000000&((unsigned long) 0xff000000)
cout<<"good"<<endl;
else
cout<<"bad"<<endl;
I have not tested this with straight C (only C++) but I suspect it
is a universal bug (even for non "C" languages)
>How-To-Repeat:
Run the above code
>Fix:
Make sure there are not two internal representations of signed vs. unisgned
>Release-Note:
>Audit-Trail:
>Unformatted:
^ permalink raw reply [flat|nested] 3+ messages in thread
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2003-04-21 14:02 c++/10447: signed != unsigned when signedness is unimportand ehrhardt
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2003-04-21 15:36 Aryeh M. Friedman
2003-04-21 5:16 aryeh
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