http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53052
Bug #: 53052 Summary: [C++11] is_explicitly_convertible still part of <type_traits> header Classification: Unclassified Product: gcc Version: 4.8.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: libstdc++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: daniel.krueg...@googlemail.com With the acceptance of http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2010/n3047.html the previously suggested type trait std::is_explicitly_convertible had been removed from the standard library. This component is still part of the library header <type_traits> and should be removed or renamed to something in the "extension name-space", presumably std::__is_explicitly_convertible.