gcc/testsuite/g++.dg/cpp0x/decltype52.C

   1 // PR c++/56450
   2 // { dg-do compile { target c++11 } }
   3
   4 template<typename T>
   5 T&& declval();
   6
   7 template<typename, typename>
   8 struct is_same
   9 { static constexpr bool value = false; };
  10
  11 template<typename T>
  12 struct is_same<T, T>
  13 { static constexpr bool value = true; };
  14
  15 struct A { static const int dummy = 0; };
  16
  17 static_assert(is_same<decltype(declval<A>().dummy), const int>::value, "");
  18 static_assert(!is_same<decltype(declval<A>().dummy), const int&>::value, "");