[Bug c++/20240] New: invalid using-redeclaration accepted

["sstrasser at systemhaus-gruppe dot de" <gcc-bugzilla at gcc dot gnu dot org>]

sorry if this is a dupe, I've checked the summaries, but there are too many
about "using" to read each in detail.

I think this is a bug:

namespace A{int a;};

namespace C{
  int a;
  using A::a;
}

accepted.

if not, then this is one:
namespace A{int a;};

namespace C{
  double a;
  using A::a;
}

error: `a' is already declared in this scope

-- 
           Summary: invalid using-redeclaration accepted
           Product: gcc
           Version: 3.4.3
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: sstrasser at systemhaus-gruppe dot de
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20240