errors/gcs1961-12.cs

   1 // CS1961: The contravariant type parameter `T' must be invariantly valid on `B<T>(A<A<T>>)'
   2 // Line: 9
   3 // Compiler options: -langversion:future
   4
   5 interface A<T>
   6 {
   7 }
   8
   9 delegate void B<in T> (A<A<T>> a);