https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49090
--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> --- r212555 addresses this issue for certain std::lib types, but not for the general case
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49090
--- Comment #12 from Jonathan Wakely <redi at gcc dot gnu.org> --- r212555 addresses this issue for certain std::lib types, but not for the general case