mcs/tests/test-282.cs

   1 // Bug #62322.
   2 using System;
   3
   4 public struct integer
   5 {
   6         private readonly int value;
   7
   8         public integer (int value)
   9         {
  10                 this.value = value;
  11         }
  12
  13         public static implicit operator integer (int i)
  14         {
  15                 return new integer (i);
  16         }
  17
  18         public static implicit operator double (integer i)
  19         {
  20                 return Convert.ToDouble (i.value);
  21         }
  22
  23         public static integer operator + (integer x, integer y)
  24         {
  25                 return new integer (x.value + y.value);
  26         }
  27 }
  28
  29 class X
  30 {
  31         public static object Add (integer x, object other)
  32         {
  33                 if (other is int) return x + ((int) other);
  34                 if (other is double) return x + ((double) other);
  35                 throw new InvalidOperationException ();
  36         }
  37
  38         public static int Main ()
  39         {
  40                 integer i = new integer (3);
  41                 double d = 4.0;
  42
  43                 object result = Add (i, d);
  44                 if (!(result is double))
  45                         return 1;
  46
  47                 if ((double) result != 7.0)
  48                         return 2;
  49
  50                 return 0;
  51         }
  52 }