The following invalid code snippet triggers an ICE since at least GCC 2.95.3:
================================= struct A { typedef void (&F)(); template<int> operator F(); }; void foo() { A()(); } ================================= bug.cc: In function 'void foo()': bug.cc:9:7: internal compiler error: in add_template_candidate_real, at cp/call.c:2477 Please submit a full bug report, [etc.] -- Summary: ICE with template operator Product: gcc Version: 4.5.0 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=40371