Ubuntu
gcc-4.3 package

[PR26155] g++ crashes when trying to compile c++ header with namespace error

Bug #321883 reported by Pauli on 2009-01-27

	Status	Importance	Assigned to
gcc	Fix Released	Medium	gcc-bugzilla #26155
gcc-4.3 (Ubuntu)	Won't Fix	Low	Unassigned
gcc-4.7 (Ubuntu)	Fix Released	Undecided	Unassigned

Bug Description

Binary package hint: gcc-4.3

I tried to compile accidetaly file where I did something evil with namespaces

Basic idea is this header file:

#include <boost/filesystem/path.hpp>

using namespace fs = boost::filesystem;

namespace fs {
// declare some extensions to boost filesystem
}

ProblemType: Crash
Architecture: i386
DistroRelease: Ubuntu 8.10
ExecutablePath: /usr/lib/gcc/i486-linux-gnu/4.3.2/cc1plus
Package: g++-4.3 4.3.2-1ubuntu11
SourcePackage: gcc-4.3
Uname: Linux 2.6.27-9-generic i686

Tags:

Related branches

lp:debian/gcc-4.7

Revision history for this message

In GCC Bugzilla #26155, Pinskia (pinskia) wrote on 2006-02-07:

I thought this was filed before but I cannot find it.
Testcase:
namespace std
{
namespace __gnu_debug {
namespace debug = std::__gnu_debug;
namespace debug
{
-----
Error we get:
t.ii:6: error: namespace alias ‘std::__gnu_debug::debug’ not allowed here, assuming ‘std::__gnu_debug’
t.ii:6: internal compiler error: in resume_scope, at cp/name-lookup.c:1372
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

Revision history for this message

In GCC Bugzilla #26155, Bkoz (bkoz) wrote on 2006-02-08:

Created attachment 10805
patch

Revision history for this message

In GCC Bugzilla #26155, Pinskia (pinskia) wrote on 2006-02-09:

Comment on attachment 10805
patch

This patch was submitted to the wrong bug.

Revision history for this message

In GCC Bugzilla #26155, Reichelt (reichelt) wrote on 2006-02-09:

Confirmed.

Even simpler testcase:

=======================
namespace N
{
namespace M = N;
namespace M {}
}
=======================

Revision history for this message

Pauli (paniemin) wrote on 2009-01-27:

File that I tried to compile with g++ Edit (1.1 MiB, text/plain)
Dependencies.txt Edit (459 bytes, text/plain; charset="utf-8")
PreprocessedSource.txt Edit (1.1 MiB, text/plain; charset="utf-8")

Revision history for this message

In GCC Bugzilla #26155, Matthias Klose (doko) wrote on 2009-03-24:

confirmed with 4.3.4 and 4.4.0

summary:	- g++ crashes when trying to compile c++ header with namespace error + [PR26155] g++ crashes when trying to compile c++ header with namespace + error
Changed in gcc-4.3 (Ubuntu):
importance:	Undecided → Low
status:	New → Triaged

Bug Watch Updater (bug-watch-updater) on 2009-03-24

Changed in gcc:
status:	Unknown → Confirmed

Revision history for this message

In GCC Bugzilla #26155, Debian GCC maintainers (debian-gcc) wrote on 2009-12-29:

confirmed with trunk 20091228

Revision history for this message

In GCC Bugzilla #26155, Paolo-carlini (paolo-carlini) wrote on 2012-05-29:

On it.

Bug Watch Updater (bug-watch-updater) on 2012-06-01

Changed in gcc:
importance:	Unknown → Medium
status:	Confirmed → In Progress

Revision history for this message

In GCC Bugzilla #26155, Paolo-k (paolo-k) wrote on 2012-06-01:

Author: paolo
Date: Fri Jun 1 16:11:38 2012
New Revision: 188113

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=188113
Log:
/cp
2012-06-01 Paolo Carlini <email address hidden>

PR c++/26155
* name-lookup.c (push_namespace): When error recovery is
impossible just error out in duplicate_decls.

/testsuite
2012-06-01 Paolo Carlini <email address hidden>

PR c++/26155
* g++.dg/parse/namespace-alias-1.C: New.

Added:
    trunk/gcc/testsuite/g++.dg/parse/namespace-alias-1.C
Modified:
    trunk/gcc/cp/ChangeLog
    trunk/gcc/cp/name-lookup.c
    trunk/gcc/testsuite/ChangeLog

Revision history for this message

In GCC Bugzilla #26155, Paolo-carlini (paolo-carlini) wrote on 2012-06-01:

#10

Fixed.

Bug Watch Updater (bug-watch-updater) on 2012-06-08

Changed in gcc:
status:	In Progress → Fix Released

Matthias Klose (doko) on 2012-06-08

Changed in gcc-4.7 (Ubuntu):
status:	New → Fix Committed
Changed in gcc-4.3 (Ubuntu):
status:	Triaged → Won't Fix

Revision history for this message

Launchpad Janitor (janitor) wrote on 2012-06-12:

#11

This bug was fixed in the package gcc-4.7 - 4.7.0-13ubuntu1

---------------
gcc-4.7 (4.7.0-13ubuntu1) quantal; urgency=low

* Regenerate the control file.

gcc-4.7 (4.7.0-13) unstable; urgency=low

* Update to SVN 20120612 (r188457) from the gcc-4_7-branch.
- Fix PR c++/53602 (LP: #1007616).

  * Document the changed ssp-buffer-size default in Ubuntu 10.10 and
    later (Kees Cook). LP: #990141.
  * Fix PR c++/26155, ICE after error with namespace alias. LP: #321883.
  * Fix PR c++/53599 (reverting the fix for PR c++/53137).
    Closes: #676729. LP: #1010896.
  * Fix manual page names for cross builds (Thibaut Girka). Closes: #675516.
  * Remove dpkg-cross build dependency for cross builds (Thibaut Girka).
    Closes: #675511.
-- Matthias Klose <email address hidden> Tue, 12 Jun 2012 17:54:25 +0200