Without "-pedantic" the following invalid code snippet is accepted since gcc 3.4.0:
================================ template<typename> struct A { typedef int A::template X; }; ================================ -- Summary: [3.4/4.0 regression] Invalid template in typedef accepted Product: gcc Version: 4.0.0 Status: UNCONFIRMED Keywords: accepts-invalid Severity: normal Priority: P2 Component: c++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: reichelt at gcc dot gnu dot org CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19396