////   This file contains the C++ code from Program 6.24 of//   "Data Structures and Algorithms//    with Object-Oriented Design Patterns in C++"//   by Bruno R. Preiss.////   Copyright (c) 1998 by Bruno R. Preiss, P.Eng.  All rights reserved.////   http://www.pads.uwaterloo.ca/Bruno.Preiss/books/opus4/programs/pgm06_24.cpp//Object& DequeAsArray::Head () const    { return QueueAsArray::Head (); }void DequeAsArray::EnqueueTail (Object& object)    { QueueAsArray::Enqueue (object); }Object& DequeAsArray::DequeueHead ()    { return QueueAsArray::Dequeue (); }