The following invalid testcase triggers an ICE on mainline:
=========================================
template<void> struct A;
template<typename> struct B;
template<void N> struct B<A<N> > {};
=========================================
bug.cc:1: error: 'void' is not a valid type for a template constant parameter
bug.cc:5: error: 'void' is not a valid type for a template constant parameter
bug.cc:5: error: 'N' was not declared in this scope
bug.cc:5: error: template parameters not used in partial specialization:
bug.cc:5: internal compiler error: tree check: expected tree_list, have
error_mark in process_partial_specialization, at cp/pt.c:2693
Please submit a full bug report, [etc.]
This is probably fallout from PR 27668.
--
Summary: [4.2 regression] ICE using invalid template class in
specialization
Product: gcc
Version: 4.2.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code, error-recovery, monitored
Severity: minor
Priority: P3
Component: c++
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: reichelt at gcc dot gnu dot org
BugsThisDependsOn: 27668
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28737
