gcc/testsuite/g++.dg/cpp0x/variadic27.C

   1 // { dg-do compile { target c++11 } }
   2 template<typename Signature>
   3 struct function_traits;
   4
   5 template<typename R, typename... ArgTypes>
   6 struct function_traits<R(ArgTypes...)> {
   7   typedef R result_type;
   8 };
   9
  10 template<typename T, typename U>
  11 struct same_type {
  12   static const bool value = false;
  13 };
  14
  15 template<typename T>
  16 struct same_type<T, T> {
  17   static const bool value = true;
  18 };
  19
  20 int a0[same_type<function_traits<int()>::result_type, int>::value? 1 : -1];
  21 int a1[same_type<function_traits<int(float)>::result_type, int>::value? 1 : -1];
  22 int a2[same_type<function_traits<int(double, char)>::result_type, int>::value? 1 : -1];