mcs/tests/gtest-407.cs

   1 using System;
   2
   3 struct MyColor
   4 {
   5         int v;
   6
   7         public MyColor (int v)
   8         {
   9                 this.v = v;
  10         }
  11
  12         public static bool operator == (MyColor left, MyColor right)
  13         {
  14                 return left.v == right.v;
  15         }
  16
  17         public static bool operator != (MyColor left, MyColor right)
  18         {
  19                 return left.v != right.v;
  20         }
  21 }
  22
  23 public class NullableColorTests
  24 {
  25         public static int Main ()
  26         {
  27                 MyColor? col = null;
  28                 bool b = col == new MyColor (3);
  29                 Console.WriteLine (b);
  30                 if (b)
  31                         return 1;
  32
  33                 b = col != new MyColor (3);
  34                 if (!b)
  35                         return 2;
  36
  37                 return 0;
  38         }
  39 }