//
//   This file contains the C++ code from Program 5.8 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/pgm05_08.cpp
//
typedef Wrapper<int> Int;
typedef Wrapper<char> Char;
typedef Wrapper<double> Double;
typedef Wrapper<std::string> String;