#
# This file contains the Ruby code from Program 7.18 of
# "Data Structures and Algorithms
# with Object-Oriented Design Patterns in Ruby"
# by Bruno R. Preiss.
#
# Copyright (c) 2004 by Bruno R. Preiss, P.Eng.  All rights reserved.
#
# http://www.brpreiss.com/books/opus8/programs/pgm07_18.txt
#
class OrderedListAsLinkedList < OrderedList

    class Cursor

        def withdraw
            @list.linkedList.extract(@element.datum)
            @list.count -= 1
	end

    end

end