The following invalid code snippet causes an ICE on mainline: ============================================ struct A;
struct B { friend A : 2; }; ============================================ bug.cc:5: error: name 'A' has incomplete type bug.cc:5: internal compiler error: tree check: expected tree that contains 'decl common' structure, have 'error_mark' in grokbitfield, at cp/decl2.c:970 Please submit a full bug report, [etc.] -- Summary: [4.2 regression] ICE with friend declaration of invalid bitfield 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=28054