mcs/tests/gtest-467.cs

   1 using System;
   2
   3 struct S
   4 {
   5         public static int Main ()
   6         {
   7                 S? s = null;
   8                 A a = s;
   9                 B b = (B) s;
  10                 return 0;
  11         }
  12 }
  13
  14 class A
  15 {
  16         public static implicit operator A (S x)
  17         {
  18                 return new B ();
  19         }
  20 }
  21
  22 class B : A
  23 {
  24 }