////   This file contains the C++ code from Program A.11 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/pgm0A_11.cpp//template <class T>class Stack{    // ...public:    void Push (T);    T Pop ();};template <class T>void Stack<T>::Push (T arg){    // ...}template <class T>T Stack<T>::Pop (){    // ...}