mcs/tests/gtest-588.cs

   1 using System;
   2
   3 struct S
   4 {
   5         public static implicit operator short? (S s)
   6         {
   7                 return 0;
   8         }
   9
  10         public static implicit operator short (S s)
  11         {
  12                 throw new ApplicationException ();
  13         }
  14 }
  15
  16 class Program
  17 {
  18         public static int Main ()
  19         {
  20                 S? s = null;
  21                 S? s2 = new S ();
  22
  23                 long? i = s;
  24                 if (i != null)
  25                         return 1;
  26
  27                 double? ui = s2;
  28                 if (ui == null)
  29                         return 2;
  30
  31                 return 0;
  32         }
  33 }