mcs/tests/test-null-operator-12.cs

   1 class Test
   2 {
   3         int? _state;
   4         public bool Working () => _state?.ToString () != "";
   5
   6         public static int Main ()
   7         {
   8                 var t = new Test ();
   9                 if (!t.Working ())
  10                         return 1;
  11
  12                 return 0;
  13         }
  14 }