1 // { dg-do compile { target c++11 } }
2 // { dg-additional-options "-Wno-return-type" }
3 
4 struct unused;
5 template<typename T1 = unused, typename T2 = unused, typename T3 = unused,
6          typename T4 = unused, typename T5 = unused, typename T6 = unused>
7 struct tuple {};
8 
9 template<typename... Args>
foo()10 tuple<Args...> foo() { } // { dg-bogus "cannot expand" }
11 
main()12 int main()
13 {
14   foo<int,int,int,int,int,int>();
15 }
16