1 // PR c++/49105 2 // { dg-do compile { target c++11 } } 3 4 template<class T, class = decltype(T{})> 5 char f(int); 6 7 template<class T> 8 auto f(...) -> char(&)[2]; 9 10 static_assert(sizeof(f<const int&&>(0)) == 1, "Error"); // # 11