Full Text Bug Listing

Description:

Last confirmed: 2004-04-02 12:34

Opened: 2004-04-02 11:10

-----------------------------------
namespace A {
  namespace B {}
}

namespace A {
  namespace Alias = ::A::B;
}

namespace A {
  namespace Alias = ::A::B;
}
-----------------------------------
namespace.cc:10: error: declaration of `namespace Alias = A::B;'
namespace.cc:6: error: conflicts with previous declaration `namespace Alias = A:
:B;'


This is obviously bogus, and breaks a library currently under review for Boost. 
The workaround is harder than one might think because the conflicting aliases 
come from different headers.

------- Comment #1 From Andrew Pinski 2004-04-02 12:34 -------

Confirmed.

------- Comment #2 From Mark Mitchell 2004-05-22 22:04 -------

Working on a fix.

------- Comment #3 From CVS Commits 2004-05-23 17:52 -------

Subject: Bug 14821

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-branch
Changes by:	mmitchel@gcc.gnu.org	2004-05-23 17:52:22

Modified files:
	gcc/testsuite  : ChangeLog 
	gcc/cp         : ChangeLog name-lookup.c parser.c 
Added files:
	gcc/testsuite/g++.dg/other: ns1.C 
	gcc/testsuite/g++.dg/template: invalid1.C 

Log message:
	PR c++/14821
	* name-lookup.c (supplement_binding): Allow redefinitions of
	namespace aliases.
	
	PR c++/14883
	* parser.c (cp_parser_template_argument): Robustify.
	
	PR c++/14821
	* g++.dg/other/ns1.C: New test.
	
	PR c++/14883
	* g++.dg/template/invalid1.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3389.2.179&r2=1.3389.2.180
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3892.2.102&r2=1.3892.2.103
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/name-lookup.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.34.2.11&r2=1.34.2.12
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/parser.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.157.2.26&r2=1.157.2.27
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/other/ns1.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.2.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/template/invalid1.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.2.1

------- Comment #5 From Mark Mitchell 2004-05-23 17:58 -------

Fixed in GCC 3.4.1.

Bug#: 14821	Product: gcc	Version: 3.4.0
Host:	Target:	Build:
Status: RESOLVED	Severity: critical	Priority: P2
Resolution: FIXED	Assigned To: mark@codesourcery.com	Reported By: giovannibajo@libero.it
Component: c++		Target Milestone: 3.4.1
Summary: [3.4/4.0 Regression] Duplicate namespace alias declaration should not conflict
Keywords: rejects-valid
Opened: 2004-04-02 11:10