https://gcc.gnu.org/bugzilla/show_bug.cgi?id=118566
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2025-01-20 Keywords| |rejects-valid Ever confirmed|0 |1 --- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Reduced: ``` template<typename T, typename T1> concept t = true; template <typename T> using ty = int; struct test { // Declaration test(auto&& r) requires t<ty<decltype(r)>, int>; }; // Implemention test::test(auto&& r) requires t<ty<decltype(r)>, int> { } ```