////   This file contains the C++ code from Program 15.2 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/pgm15_02.cpp//template <class T>void Sorter<T>::Swap (T& x, T& y){    T const tmp = x;    x = y;    y = tmp;}template <class T>void Sorter<T>::Sort (Array<T>& array){    n = array.Length ();    if (n > 0)    {	unsigned int const tmp = array.Base ();	array.SetBase (0);	DoSort (array);	array.SetBase (tmp);    }}