2 // { dg-do compile { target c++11 } }
4 template <class... T> struct tuple;
5 template <class T> struct tuple<T> { T t; };
7 template <class T, class U> struct pair;
8 template<> struct pair<int,double> { };
10 template <class... Ts>
13 template <class... Us,
14 class V = tuple<pair<Ts,Us>...> >