errors/gcs0311-2.cs

   1 // CS031: The type `B' cannot be used as type parameter `T' in the generic type or method `Foo<T>'. There is no implicit reference conversion from `B' to `I'
   2 // Line: 21
   3
   4 public class Foo<T>
   5         where T : A, I
   6 {
   7 }
   8
   9 public interface I
  10 { }
  11
  12 public class A
  13 { }
  14
  15 public class B : A
  16 { }
  17
  18 class X
  19 {
  20         Foo<B> foo;
  21
  22         static void Main ()
  23         {
  24         }
  25 }