mcs/errors/cs0151-5.cs

   1 // CS0151: A switch expression of type `X?' cannot be converted to an integral type, bool, char, string, enum or nullable type
   2 // Line: 19
   3
   4 struct X
   5 {
   6         public static implicit operator int? (X x)
   7         {
   8                 return 1;
   9         }
  10
  11         static void Main ()
  12         {
  13                 X? x = null;
  14                 switch (x) {
  15                 default:
  16                         break;
  17                 }
  18         }
  19 }