+++ /dev/null
-using System;
-
-public interface ISequenced<T>
-{
- bool Equals (ISequenced<T> that);
-}
-
-public class SequencedHasher <S,W>
- where S : ISequenced<W>
-{
- public bool Equals (S i1, S i2)
- {
- return i1 == null ? i2 == null : i1.Equals (i2);
- }
-}
-
-public class Sequenced<T> : ISequenced<T>
-{
- public bool Equals (ISequenced<T> that)
- {
- return false;
- }
-}
-
-class X
-{
- static void Main ()
- {
- Sequenced<int> s = new Sequenced<int> ();
- SequencedHasher<Sequenced<int>,int> hasher = new SequencedHasher<Sequenced<int>,int> ();
- hasher.Equals (s, s);
- }
-}