https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116739
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Keywords| |rejects-valid Ever confirmed|0 |1 Last reconfirmed| |2024-09-17 --- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Reduced testcase: ``` template<class> struct l {}; template <class t> struct mm { using type = t; }; template <class t> class myclass { template <class... type> // error: parameter packs not expanded with '...': l<typename mm<t>::type> try_push(type&&... k); }; ``` Somehow GCC is getting confused between type and m<t>::type.