gcc/testsuite/g++.dg/cpp0x/nullptr16.C

   1 // { dg-do compile { target c++11 } }
   2
   3 // Test template deduction
   4
   5 typedef decltype(nullptr) nullptr_t;
   6
   7 template <typename T, typename U> struct tType_equal;
   8 template <typename T> struct tType_equal<T, T> { typedef void type; };
   9
  10 template <typename T, typename U>
  11 inline typename tType_equal<T, U>::type
  12 type_equal(U) { }
  13
  14 template<typename T> T h( T t );
  15
  16 void test_h()
  17 {
  18   type_equal<int>(h(0));
  19   type_equal<nullptr_t>(h(nullptr));
  20   type_equal<float*>(h((float*)nullptr));
  21   nullptr_t mynull = 0;
  22   type_equal<nullptr_t>(h(mynull));
  23   type_equal<float*>(h((float*)mynull));
  24 }