[Bug c++/40738] New: missing typename error improvement

[bkoz at gcc dot gnu dot org]

This code, compiled with trunk:

  template<typename _Tp, typename _Alloc>
    class list
    {
      struct iterator;

      struct const_iterator;
    };


  template<typename _Tp, typename _Alloc>
    struct list<_Tp, _Alloc>::iterator 
     { };

#if 0
  template<typename _Tp, typename _Alloc>
    inline bool
    operator!=(const typename list<_Tp, _Alloc>::iterator& __x,
               const typename list<_Tp, _Alloc>::const_iterator& __y)
    { return __x._M_node != __y._M_node; }
#else
  template<typename _Tp, typename _Alloc>
    inline bool
    operator!=(const list<_Tp, _Alloc>::iterator& __x,
               const list<_Tp, _Alloc>::const_iterator& __y)
    { return __x._M_node != __y._M_node; }
#endif

gives:

%g++ -c test.cc
test.cc:24: error: expected unqualified-id before ‘&’ token
test.cc:24: error: expected ‘)’ before ‘&’ token
test.cc:24: error: expected initializer before ‘&’ token

Hmmm. Yeah.

Here's something more useful:

%g++ -c test.cc
test.cc:24: error: expected typename before qualified-id


-- 
           Summary: missing typename error improvement
           Product: gcc
           Version: unknown
            Status: UNCONFIRMED
          Keywords: diagnostic
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: bkoz at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40738