mcs/tests/gtest-139.cs

   1 using System;
   2
   3 public struct MyStruct
   4 {
   5         public static int operator !=(MyStruct? a, string b)
   6         {
   7                 return -1;
   8         }
   9
  10         public static int operator ==(MyStruct? a, string b)
  11         {
  12                 return 1;
  13         }
  14
  15         public static int operator !=(string a, MyStruct? b)
  16         {
  17                 return -2;
  18         }
  19
  20         public static int operator ==(string a, MyStruct? b)
  21         {
  22                 return 2;
  23         }
  24 }
  25
  26 public class Test
  27 {
  28         public static int Main()
  29         {
  30                 MyStruct? ms = new MyStruct ();
  31                 int v;
  32                 v = ms == "a";
  33                 if (v != 1)
  34                         return 1;
  35
  36                 v = "b" != ms;
  37                 if (v != -2)
  38                         return 2;
  39
  40                 return 0;
  41         }
  42 }