1 // PR c++/50870 2 // { dg-options "-std=gnu++0x" } 3 4 struct impl 5 { 6 template <class T> static T create(); 7 }; 8 9 template<class T, class U, 10 class = decltype(impl::create<T>()->impl::create<U>())> 11 struct tester{}; 12 13 tester<impl*, int> ti; 14 15 template<class T, class U, 16 class = decltype(impl::create<T>()->impl::create<U>())> test()17int test() { return 0; } 18 19 int i = test<impl*, int>(); 20