1 // PR c++/83916 2 // { dg-do compile { target c++17 } } 3 4 template<class TA, 5 template<auto...> class TTA, TA... VA> 6 struct A { }; 7 8 template<class UC, class TC, 9 template<auto...> class TTC, TC... VC> 10 struct C : A<TC, TTC, VC...> { }; 11