1 using System;
2 using System.Collections.Generic;
3 
4 public class OrderedMultiDictionary<T,U>
5 {
6         private RedBlackTree<KeyValuePair<T,U>> tree;
7 
EnumerateKeys(RedBlackTree<KeyValuePair<T,U>>.RangeTester rangeTester)8         private void EnumerateKeys (RedBlackTree<KeyValuePair<T,U>>.RangeTester rangeTester)
9         {
10                 tree.EnumerateRange (rangeTester);
11 	}
12 }
13 
14 internal class RedBlackTree<S>
15 {
RangeTester(S item)16         public delegate int RangeTester (S item);
17 
EnumerateRange(RangeTester rangeTester)18         public void EnumerateRange (RangeTester rangeTester)
19 	{
20 	}
21 }
22 
23 class X
24 {
Main()25 	public static void Main ()
26 	{ }
27 }
28