friend2.cpp

本代码是《C／C++程序员实用大全》的配套代码。网络转载

#include <iostream.h>
#include <string.h>

class Reader 
{
  public:
    Reader(char *name) { strcpy(Reader::name, name); };
    void show_reader(class Book book);
  private:
    char name[64];
};

class Book 
{
  public: 
    Book(char *title) { strcpy(Book::title, title); } ;
    void show_book(void) { cout << title; };    
    friend Reader::show_reader(Book book);
  private:
    char title[64];
};  

void Reader::show_reader(class Book book) 
  { cout << "Reader: " << name << ' ' << "Book: " << book.title; };


void main(void)
 {
    Reader reader("Kris Jamsa");
    Book favorite_book("Compiler Internals");

    reader.show_reader(favorite_book);
 }