1 // Core 1715
2 // { dg-do compile { target c++11 } }
3 // { dg-options -fnew-inheriting-ctors }
4 
5 template<class T> struct S {
6 private:
7   typedef int X;
8   friend struct B;
9 };
10 
11 struct B {
12   template<class T> B(T, typename T::X);
13 };
14 
15 struct D: B {
16   using B::B;
17 };
18 
19 S<int> s;
20 B b(s, 2); // Okay, thanks to friendship.
21 D d(s, 2); // Now OK as well.
22