mcs/errors/cs0019-70.cs

   1 // CS0019: Operator `&&' cannot be applied to operands of type `S?' and `S?'
   2 // Line: 20
   3
   4 struct S
   5 {
   6         public static S operator & (S s, S i)
   7         {
   8                 return s;
   9         }
  10 }
  11
  12 class C
  13 {
  14         public static void Main ()
  15         {
  16                 S? s = new S ();
  17                 S? s2 = null;
  18
  19                 var res = s && s2;
  20         }
  21 }