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/*
 * Copyright 1995, Brown University, Providence, RI
 *
 * Permission to use and modify this software and its documentation for
 * any purpose other than its incorporation into a commercial product is
 * hereby granted without fee.  Permission to copy and distribute this
 * software and its documentation only for non-commercial use is also
 * granted without fee, provided, however, that the above copyright notice
 * appear in all copies, that both that copyright notice and this permission
 * notice appear in supporting documentation, that the name of Brown
 * University not be used in advertising or publicity pertaining to
 * distribution of the software without specific, written prior permission,
 * and that the person doing the distribution notify Brown University of
 * such distributions outside of his or her organization. Brown University
 * makes no representations about the suitability of this software for
 * any purpose.  It is provided "as is" without express or implied warranty.
 * Brown University requests notification of any modifications to this
 * software or its documentation.
 *
 * Send the following redistribution information:
 *
 *      Name:
 *      Organization:
 *      Address (postal and/or electronic):
 *
 * To:
 *      Software Librarian
 *      Computer Science Department, Box 1910
 *      Brown University
 *      Providence, RI 02912
 *
 *              or
 *
 *      brusd@cs.brown.edu
 *
 * We will acknowledge all electronic notifications.
 */
#include <stdlib.h>

//Should use templates, but that isn't portable (yet)

class QUEUEint {
public:
      QUEUEint();
      ~QUEUEint();
      int deQueue(int& result);
      void enQueue(const int& inVal);
private:
      struct Item {
        int data;
        Item *next;
        Item *prev;
      };
      Item *headOfList, *tailOfList;
};