[Bug c++/32114] New: [4.3 regression] ICE on invalid use of typedef in variadic template

["reichelt at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

The following invalid code snippet triggers an ICE on mainline:

======================================
template<typename ...T> struct A
{
  typedef typename T::X Y;
};

A<int> a;
======================================

bug.cc:3: error: parameter packs not expanded with `...':
bug.cc:3: note:         'T'
bug.cc: In instantiation of 'A<int>':
bug.cc:6:   instantiated from here
bug.cc:3: internal compiler error: in dependent_type_p, at cp/pt.c:14887
Please submit a full bug report, [etc.]


-- 
           Summary: [4.3 regression] ICE on invalid use of typedef in
                    variadic template
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, error-recovery, monitored
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: reichelt at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32114