1 // { dg-do compile { target c++11 } }
2 template<typename...> struct tuple { };
3 
4 template<typename... Args1, typename... Args2>
5 void foo(tuple<Args1..., Args2...>, tuple<Args1...>, tuple<Args2...>);
6 
7 struct X{ };
8 
bar()9 void bar()
10 {
11   tuple<int, float> tif;
12   tuple<double, X> tdx;
13   tuple<int, float, double, X> tall;
14   foo(tall, tif, tdx);
15 }
16