This is to track DR 233: eventually we want the exact behavior mandated in the resolution (e.g., probably, checks both before and after). See also:
http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2005/n1780.html -- Summary: Implement resolution of DR 233 Product: gcc Version: 4.1.0 Status: UNCONFIRMED Severity: normal Priority: P2 Component: libstdc++ AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: pcarlini at suse dot de CC: gcc-bugs at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=22102