The following invalid code snippet triggers an ICE on mainline: ===================================================================== template<typename... T> struct A { void foo(T*) { ++p; } T* p; }; =====================================================================
bug.cc:3: error: parameter packs not expanded with `...': bug.cc:3: note: 'T' bug.cc: In member function 'void A<T>::foo(<type error>)': bug.cc:3: internal compiler error: tree check: expected class 'type', have 'exceptional' (error_mark) in build_unary_op, at cp/typeck.c:4296 Please submit a full bug report, [etc.] The testcase didn't crash before 2007-11-03, so it's probably fallout from http://gcc.gnu.org/ml/gcc-cvs/2007-11/msg00120.html -- Summary: [4.3 regression] ICE with parameter pack and pointer 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=34056