The following invalid code snippet triggers an ICE on mainline: ================================================== template<template<void> class> struct A { template<template<int> class T> A<T> foo(); }; ==================================================
bug.cc:1: error: 'void' is not a valid type for a template constant parameter bug.cc:3: internal compiler error: in coerce_template_template_parms, at cp/pt.c:4749 Please submit a full bug report, [etc.] -- Summary: [4.4 regression] ICE with invalid template template parameter Product: gcc Version: 4.4.0 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=36411