[Bug c++/11966] New: using a nested namespace

["hans dot utz at informatik dot uni-ulm dot de" <gcc-bugzilla at gcc dot gnu dot org>]

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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11966

           Summary: using a nested namespace
           Product: gcc
           Version: 3.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hans dot utz at informatik dot uni-ulm dot de
                CC: gcc-bugs at gcc dot gnu dot org
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu

I'm not sure whether this is legal c++. The following code compiles with earlier
g++ versions (tried with 2.95.3 and 3.2.1) but fails with 3.4:
===

namespace foo {
  namespace bar { 
    enum { you };
  }
}

using foo::bar;

int main(int, char **) { return bar::you; }

====

3.4 reports:
using.cpp:7: error: namespace `foo::bar' not allowed in using-declaration

Hans