The following invalid code snippet triggers an ICE in the C frontend since at least GCC 2.95.3:
================== void foo()[] {} ================== bug.c:1: error: declaration of 'foo' as array of voids bug.c:1: internal compiler error: tree check: expected function_decl, have var_decl in start_function, at c-decl.c:5933 Please submit a full bug report, [etc.] -- Summary: ICE on invalid function definition 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=27719