The following invalid code snippet triggers an ICE on mainline: ============================== template<int> void foo() { throw A(); struct A {} a; }
template void foo<0>(); ============================== bug.cc: In function 'void foo()': bug.cc:3: error: there are no arguments to 'A' that depend on a template parameter, so a declaration of 'A' must be available bug.cc:3: error: (if you use '-fpermissive', G++ will accept your code, but allowing the use of an undeclared name is deprecated) bug.cc: In function 'void foo() [with int <anonymous> = 0]': bug.cc:7: instantiated from here bug.cc:3: error: 'A' was not declared in this scope bug.cc: At global scope: bug.cc: In instantiation of 'foo() [with int <anonymous> = 0]::A': bug.cc:4: instantiated from 'void foo() [with int <anonymous> = 0]' bug.cc:7: instantiated from here bug.cc:4: internal compiler error: Segmentation fault Please submit a full bug report, [etc.] -- Summary: [4.2 regression] ICE throwing undeclared object Product: gcc Version: 4.2.0 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=29363