public inbox for gcc-bugs@sourceware.org
help / color / mirror / Atom feed
* [Bug preprocessor/31869] New: stringifying empty macros
@ 2007-05-08 19:31 truedfx at gentoo dot org
2007-05-09 2:14 ` [Bug preprocessor/31869] " pinskia at gcc dot gnu dot org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: truedfx at gentoo dot org @ 2007-05-08 19:31 UTC (permalink / raw)
To: gcc-bugs
#include <stdio.h>
#define MKSTR(x) STR(x)
#define STR(x) #x
#define EMPTY /* nothing */
int main(void) {
puts(MKSTR(.EMPTY.));
puts(MKSTR(.EMPTY .));
}
Using gcc 4.1.2, configured with
../gcc-4.1.2/configure --prefix=$HOME/gcc --enable-languages=c,c++
--disable-multilib, on x86_64-pc-linux-gnu, this program prints out
..
..
rather than
..
. .
as I would expect.
--
Summary: stringifying empty macros
Product: gcc
Version: 4.1.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: preprocessor
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: truedfx at gentoo dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31869
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug preprocessor/31869] stringifying empty macros
2007-05-08 19:31 [Bug preprocessor/31869] New: stringifying empty macros truedfx at gentoo dot org
@ 2007-05-09 2:14 ` pinskia at gcc dot gnu dot org
2007-05-09 4:01 ` neil at gcc dot gnu dot org
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2007-05-09 2:14 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from pinskia at gcc dot gnu dot org 2007-05-09 03:14 -------
I don't see a problem with this .. are two different tokens (.) so getting rid
of the space is ok here.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31869
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug preprocessor/31869] stringifying empty macros
2007-05-08 19:31 [Bug preprocessor/31869] New: stringifying empty macros truedfx at gentoo dot org
2007-05-09 2:14 ` [Bug preprocessor/31869] " pinskia at gcc dot gnu dot org
@ 2007-05-09 4:01 ` neil at gcc dot gnu dot org
2007-05-09 23:33 ` truedfx at gentoo dot org
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: neil at gcc dot gnu dot org @ 2007-05-09 4:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from neil at gcc dot gnu dot org 2007-05-09 05:01 -------
The space is required by the standard. Is this a regression? I believe GCC
used to get this right but I could be wrong.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31869
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug preprocessor/31869] stringifying empty macros
2007-05-08 19:31 [Bug preprocessor/31869] New: stringifying empty macros truedfx at gentoo dot org
2007-05-09 2:14 ` [Bug preprocessor/31869] " pinskia at gcc dot gnu dot org
2007-05-09 4:01 ` neil at gcc dot gnu dot org
@ 2007-05-09 23:33 ` truedfx at gentoo dot org
2007-12-28 20:59 ` truedfx at gentoo dot org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: truedfx at gentoo dot org @ 2007-05-09 23:33 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from truedfx at gentoo dot org 2007-05-10 00:33 -------
I see the same behaviour with gcc 3.3.6. I'm not able to check even older
versions for now.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31869
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug preprocessor/31869] stringifying empty macros
2007-05-08 19:31 [Bug preprocessor/31869] New: stringifying empty macros truedfx at gentoo dot org
` (2 preceding siblings ...)
2007-05-09 23:33 ` truedfx at gentoo dot org
@ 2007-12-28 20:59 ` truedfx at gentoo dot org
2009-03-29 23:30 ` jsm28 at gcc dot gnu dot org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: truedfx at gentoo dot org @ 2007-12-28 20:59 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from truedfx at gentoo dot org 2007-12-28 20:59 -------
Yes, gcc 2.95.3 got it right, the program used to keep the space:
..
. .
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31869
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug preprocessor/31869] stringifying empty macros
2007-05-08 19:31 [Bug preprocessor/31869] New: stringifying empty macros truedfx at gentoo dot org
` (3 preceding siblings ...)
2007-12-28 20:59 ` truedfx at gentoo dot org
@ 2009-03-29 23:30 ` jsm28 at gcc dot gnu dot org
2009-04-12 22:20 ` jsm28 at gcc dot gnu dot org
2009-04-12 22:23 ` jsm28 at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2009-03-29 23:30 UTC (permalink / raw)
To: gcc-bugs
--
jsm28 at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
OtherBugsDependingO| |16620, 16989
nThis| |
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last reconfirmed|0000-00-00 00:00:00 |2009-03-29 23:30:21
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31869
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug preprocessor/31869] stringifying empty macros
2007-05-08 19:31 [Bug preprocessor/31869] New: stringifying empty macros truedfx at gentoo dot org
` (4 preceding siblings ...)
2009-03-29 23:30 ` jsm28 at gcc dot gnu dot org
@ 2009-04-12 22:20 ` jsm28 at gcc dot gnu dot org
2009-04-12 22:23 ` jsm28 at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2009-04-12 22:20 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from jsm28 at gcc dot gnu dot org 2009-04-12 22:20 -------
Subject: Bug 31869
Author: jsm28
Date: Sun Apr 12 22:20:02 2009
New Revision: 145989
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=145989
Log:
libcpp:
PR preprocessor/31869
* macro.c (stringify_arg): Handle NULL source token in padding
token where previous padding token did not have source token with
preceding whitespace.
gcc/testsuite:
* gcc.dg/cpp/strify5.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/cpp/strify5.c
Modified:
trunk/gcc/testsuite/ChangeLog
trunk/libcpp/ChangeLog
trunk/libcpp/macro.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31869
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug preprocessor/31869] stringifying empty macros
2007-05-08 19:31 [Bug preprocessor/31869] New: stringifying empty macros truedfx at gentoo dot org
` (5 preceding siblings ...)
2009-04-12 22:20 ` jsm28 at gcc dot gnu dot org
@ 2009-04-12 22:23 ` jsm28 at gcc dot gnu dot org
6 siblings, 0 replies; 8+ messages in thread
From: jsm28 at gcc dot gnu dot org @ 2009-04-12 22:23 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from jsm28 at gcc dot gnu dot org 2009-04-12 22:23 -------
Fixed for 4.5.
--
jsm28 at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Known to work| |4.5.0
Resolution| |FIXED
Target Milestone|--- |4.5.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31869
^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2009-04-12 22:23 UTC | newest]
Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2007-05-08 19:31 [Bug preprocessor/31869] New: stringifying empty macros truedfx at gentoo dot org
2007-05-09 2:14 ` [Bug preprocessor/31869] " pinskia at gcc dot gnu dot org
2007-05-09 4:01 ` neil at gcc dot gnu dot org
2007-05-09 23:33 ` truedfx at gentoo dot org
2007-12-28 20:59 ` truedfx at gentoo dot org
2009-03-29 23:30 ` jsm28 at gcc dot gnu dot org
2009-04-12 22:20 ` jsm28 at gcc dot gnu dot org
2009-04-12 22:23 ` jsm28 at gcc dot gnu dot org
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).