book.h

里面有很多关于编程的实用例子

// Fig. 21.10: Book.h
// Definition of class Book.
#ifndef BOOK_H
#define BOOK_H
#include <string>
using std::string;

#include "boost/shared_ptr.hpp"
#include "boost/weak_ptr.hpp"

class Author; // forward declaration of class Author

// Book class definition
class Book
{
public:
   Book( const string &bookTitle ); // constructor
   ~Book(); // destructor
   void printAuthorName(); // print the name of the Author
   string title; // title of the Book
   boost::weak_ptr< Author > weakAuthorPtr; // Author of the Book
   boost::shared_ptr< Author > sharedAuthorPtr; // Author of the Book
};
#endif // BOOK_H

/**************************************************************************
 * (C) Copyright 1992-2009 by Deitel & Associates, Inc. and               *
 * Pearson Education, Inc. All Rights Reserved.                           *
 *                                                                        *
 * DISCLAIMER: The authors and publisher of this book have used their     *
 * best efforts in preparing the book. These efforts include the          *
 * development, research, and testing of the theories and programs        *
 * to determine their effectiveness. The authors and publisher make       *
 * no warranty of any kind, expressed or implied, with regard to these    *
 * programs or to the documentation contained in these books. The authors *
 * and publisher shall not be liable in any event for incidental or       *
 * consequential damages in connection with, or arising out of, the       *
 * furnishing, performance, or use of these programs.                     *
 **************************************************************************/