In 3.3.3 and GCC svn as of June. Unbuildable since then. int f (unsigned int m) { extern int (*b)[m];
return (*b)[0]; } -- Summary: Failure to diagnose violation of constraint 6.7.5.2p2 Product: gcc Version: 4.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: neil at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29126