errors/gcs0311.cs

   1 // CS0311: 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 `A'
   2 // Line: 19
   3
   4 public class Foo<T>
   5         where T : A
   6 {
   7 }
   8
   9 public class A
  10 {
  11 }
  12
  13 public class B
  14 {
  15 }
  16
  17 class X
  18 {
  19         Foo<B> foo;
  20
  21         static void Main ()
  22         {
  23         }
  24 }