The following invalid code snippet triggers an ICE since GCC 3.3: ============================================= #pragma pack(0..) =============================================
bug.c:1:14: error: too many decimal points in number bug.c:1: internal compiler error: tree check: expected integer_cst, have error_mark in handle_pragma_pack, at c-pragma.c:163 Please submit a full bug report, [etc.] This happens with the C and C++ frontend. -- Summary: [4.0/4.1/4.2 regression] ICE with invalid value in #pragma pack 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=28286