unit CltnList;

(*
  Implement the IList and IStack collections using doubly-linked lists.

  The TLinkedList class keeps track of the head and tail nodes and a
  count of the number of nodes in the list. It's all straightforward stuff.

  There's no reason why one could not implement ISet and IMap or
  create a sorted linked list, but these classes are left as
  an exercise for the reader.

  Copyright