[Bug c++/34050] New: [4.3 regression] ICE derived classes and variadic templates

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

The following code snippet triggers an ICE on mainline:

===========================================
struct A {};

template<typename... T> struct B : T...
{
  B() : T()... {}
};

B<A> b;
===========================================

bug.cc: In constructor 'B<T>::B() [with T = A]':
bug.cc:8:   instantiated from here
bug.cc:5: internal compiler error: tree check: expected tree_list, have
void_type in tsubst_initializer_list, at cp/pt.c:14981
Please submit a full bug report, [etc.]

I guess, the code is invalid, but I'm not sure.


-- 
           Summary: [4.3 regression] ICE derived classes and variadic
                    templates
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: ice-on-invalid-code, 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=34050