https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110523
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2023-07-02 Ever confirmed|0 |1 --- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Better reduced testcase: ``` template <typename> class v {}; template <template <typename> class a = v> class basic_json {}; template <typename t> struct json_pointer { template <template <typename> class a> friend class basic_json; using type = t; }; json_pointer<int>::type t; json_pointer<basic_json<>>::type t1; ```