https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104079
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- A little more reduced: template <typename DT> struct AT { static void cn() noexcept(noexcept(DT::CN())); void SNFP( void *n ) noexcept(noexcept(cn())); };