mcs/tests/dtest-014.cs

   1 class A
   2 {
   3         public static int operator != (A a, dynamic b)
   4         {
   5                 return -1;
   6         }
   7
   8         public static int operator == (A a, dynamic b)
   9         {
  10                 return +1;
  11         }
  12 }
  13
  14 public class C
  15 {
  16         public static bool operator == (C a, object b)
  17         {
  18                 return ReferenceEquals (a, b);
  19         }
  20
  21         public static bool operator != (C a, dynamic b)
  22         {
  23                 return !ReferenceEquals (a, b);
  24         }
  25
  26         public static decimal operator -(dynamic p1, C p2)
  27         {
  28                 return 9;
  29         }
  30
  31         public static int Main ()
  32         {
  33                 var c = new C ();
  34                 var v = 1 - c;
  35
  36                 if (v != 9)
  37                         return 1;
  38
  39                 return 0;
  40         }
  41 }