//
//   This file contains the C# code from Program 4.14 of
//   "Data Structures and Algorithms
//    with Object-Oriented Design Patterns in C#"
//   by Bruno R. Preiss.
//
//   Copyright (c) 2001--2002 by Bruno R. Preiss, P.Eng.  All rights reserved.
//
//   http://www.brpreiss.com/books/opus6/programs/pgm04_14.txt
//
public class LinkedList
{
    protected Element head;
    protected Element tail;

    public void Purge()
    {
	head = null;
	tail = null;
    }
    // ...
}