It looks like libstdc++/12352 is not completely fixed: we have one remaining issue in _M_replace_categories
-- Summary: Exception safety problem in locale::_Impl::_M_replace_categories 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 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24450