mcs/errors/cs0457-3.cs

   1 // CS0457: Ambiguous user defined operators `D.implicit operator A(D)' and `C.implicit operator B(C)' when converting from `D' to `B'
   2 // Line: 30
   3
   4 class A
   5 {
   6 }
   7
   8 class B : A
   9 {
  10 }
  11
  12 class C
  13 {
  14         public static implicit operator B (C s)
  15         {
  16                 return new B ();
  17         }
  18 }
  19
  20 class D : C
  21 {
  22         public static implicit operator A (D s)
  23         {
  24                 return new B ();
  25         }
  26
  27         public static void Main ()
  28         {
  29                 D d = new D ();
  30                 B b2 = (B) d;
  31         }
  32 }