1 // PR c++/66786 2 // { dg-do compile { target c++14 } } 3 4 int f (int, bool); 5 6 template <typename> 7 auto list = [](auto... xs) { return [=](auto f, auto... ys) { return f(xs..., ys...); }; }; 8 9 const int &a = list<int>(0)(f, true); 10