[Bug c++/13377] [3.4 regression] unexpected behavior of namespace usage directive

[reichelt at gcc dot gnu dot org]

--- Additional Comments From reichelt at gcc dot gnu dot org  2005-09-01 
11:33 ---
Fixed on the 3.4 branch, too.

-- 
   What|Removed |Added

 Status|ASSIGNED|RESOLVED
 Resolution||FIXED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13377

[Bug c++/13377] [3.4 regression] unexpected behavior of namespace usage directive

[cvs-commit at gcc dot gnu dot org]

--- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-09-01 
11:32 ---
Subject: Bug 13377

CVSROOT:/cvs/gcc
Module name:gcc
Branch: gcc-3_4-branch
Changes by: [EMAIL PROTECTED]   2005-09-01 11:32:20

Modified files:
gcc/cp : ChangeLog parser.c 
gcc/testsuite  : ChangeLog 
Added files:
gcc/testsuite/g++.dg/lookup: ambig4.C ambig5.C 

Log message:
PR c++/13377
* parser.c (cp_parser_lookup_name): Pass LOOKUP_COMPLAIN to
lookup_name_real on final parse.

* g++.dg/lookup/ambig4.C: New test.
* g++.dg/lookup/ambig5.C: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3892.2.231&r2=1.3892.2.232
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cp/parser.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.157.2.59&r2=1.157.2.60
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=1.3389.2.422&r2=1.3389.2.423
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/lookup/ambig4.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.6.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/g++.dg/lookup/ambig5.C.diff?cvsroot=gcc&only_with_tag=gcc-3_4-branch&r1=NONE&r2=1.1.6.1



-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13377

[Bug c++/13377] [3.4 regression] unexpected behavior of namespace usage directive

[reichelt at gcc dot gnu dot org]

--- Additional Comments From reichelt at gcc dot gnu dot org  2005-08-31 
11:07 ---
For the testcase

  ==
  namespace N
  {
int i;
  }

  int i;

  using namespace N;

  void foo() { i; }
  ==

we now get

  ambig4.C: In function 'void foo()':
  ambig4.C:10: error: use of 'i' is ambiguous
  ambig4.C:6: error:   first declared as 'int i' here
  ambig4.C:3: error:   also declared as 'int N::i' here
  ambig4.C:10: error: 'i' was not declared in this scope

Btw, this is the testcase which was a regression from GCC 3.3.x.

For the testcase

  ==
  namespace N
  {
namespace M {}
  }

  namespace M {}

  using namespace N;
  using namespace M;
  ==

we now get (since the patch for PR23586 is also in place):

  ambig5.C:13: error: use of 'M' is ambiguous
  ambig5.C:10: error:   first declared as 'namespace M { }' here
  ambig5.C:7: error:   also declared as 'namespace M { }' here
  ambig5.C:13: error: 'M' is not a namespace-name
  ambig5.C:13: error: expected namespace-name before ';' token

This is still a little suboptimal (first we say it's ambiguous,
then we say it's not declared/not a namespace-name), but I think
the user can figure out the problem now.

So this is fixed on mainline and the 4.0 branch.


-- 
   What|Removed |Added

URL||http://gcc.gnu.org/ml/gcc-
   ||patches/2005-
   ||08/msg01717.html
Summary|unexpected behavior of  |[3.4 regression] unexpected
   |namespace usage directive   |behavior of namespace usage
   ||directive
   Target Milestone|--- |3.4.5


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13377