mcs/tests/test-882.cs

   1 using System;
   2
   3 public class MyUInt32
   4 {
   5         public uint x;
   6
   7         public MyUInt32 (uint x)
   8         {
   9                 this.x = x;
  10         }
  11
  12         public static implicit operator uint (MyUInt32 v)
  13         {
  14                 return v.x;
  15         }
  16
  17         public static implicit operator long (MyUInt32 v)
  18         {
  19                 throw new ApplicationException ();
  20         }
  21
  22         public static implicit operator MyUInt32 (uint v)
  23         {
  24                 return new MyUInt32 (v);
  25         }
  26
  27         public static implicit operator MyUInt32 (long v)
  28         {
  29                 throw new ApplicationException ();
  30         }
  31 }
  32
  33 class Test
  34 {
  35         static MyUInt32 test1 (MyUInt32 x)
  36         {
  37                 x = x + 1;
  38                 return x;
  39         }
  40
  41         static MyUInt32 test2 (MyUInt32 x)
  42         {
  43                 x++;
  44                 return x;
  45         }
  46
  47         static MyUInt32 test3 (MyUInt32 x)
  48         {
  49                 ++x;
  50                 return x;
  51         }
  52
  53         public static int Main ()
  54         {
  55                 var m = new MyUInt32 (2);
  56                 m = test1 (m);
  57                 if (m.x != 3)
  58                         return 1;
  59
  60                 m = new MyUInt32 (2);
  61                 m = test2 (m);
  62                 if (m.x != 3)
  63                         return 2;
  64
  65                 m = new MyUInt32 (3);
  66                 m = test3 (m);
  67                 if (m.x != 4)
  68                         return 3;
  69
  70                 return 0;
  71         }
  72 }