The following invalid code snippet triggers an ICE on mainline since today:
=============================================================
template<typename... T, template<T> class X> void foo(X<0>);
=============================================================
bug.cc:1: error: parameter packs not expanded with `...':
bug.cc:1: note: 'T'
bug.cc:1: internal compiler error: tree check: expected tree_vec, have
type_pack_expansion in coerce_template_parameter_pack, at cp/pt.c:5054
Please submit a full bug report, [etc.]
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Summary: [4.3 regression] ICE with parameter pack in template
constant parameter
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=35022
