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  1. #include <iostream>
  2. #include <string>
  3.  
  4. class Player
  5. {
  6. private:
  7.     std::string name;
  8.     std::string password;
  9.     int hScore = 0;
  10.     int totalGames = 0;
  11.     int totalScore = 0;
  12.     int avgScore = 0;
  13.     //...
  14.  
  15. public:
  16.     //...
  17.  
  18.     class Info
  19.     {
  20.         const Player &m_player;
  21.  
  22.         void print(std::ostream &os) const {
  23.             os << "name: " << m_player.name << "\n"
  24.             	<< "password: " << m_player.password << "\n"
  25.             	<< "score: " << m_player.hScore << "\n";
  26.         }
  27.  
  28.     public:
  29.         Info(const Player &player) : m_player(player) {}
  30.  
  31.         friend std::ostream& operator<<(std::ostream &os, const Info &info)
  32.         {
  33.             info.print(os);
  34.             return os;
  35.         }
  36.     };
  37.     friend class Info;
  38.  
  39.     struct Stats
  40.     {
  41.         const Player &m_player;
  42.  
  43.         void print(std::ostream &os) const
  44.         {
  45.             os << "total games: " << m_player.totalGames << "\n"
  46.             	<< "total score: " << m_player.totalScore << "\n"
  47.             	<< "avg score: " << m_player.avgScore << "\n";
  48.         }
  49.  
  50.     public:
  51.         Stats(const Player &player) : m_player(player) {}
  52.  
  53.         friend std::ostream& operator<<(std::ostream &os, const Stats &stats)
  54.         {
  55.             stats.print(os);
  56.             return os;
  57.         }
  58.     };
  59.     friend class Stats;
  60. };
  61.  
  62. int main()
  63. {
  64. 	Player p;
  65.  
  66. 	std::cout << "Player Info:" << std::endl;
  67. 	std::cout << Player::Info(p);
  68.  
  69. 	std::cout << std::endl;
  70.  
  71. 	std::cout << "Player Stats:" << std::endl;
  72.     std::cout << Player::Stats(p);
  73.  
  74. 	return 0;
  75. }
Success #stdin #stdout 0s 5440KB
comments (?)
stdin 
Standard input is empty
stdout 
Player Info:
name: 
password: 
score: 0

Player Stats:
total games: 0
total score: 0
avg score: 0
https://ideone.com/UV8jbG
language:
C++ 4.3.2 (gcc-4.3.2)
created:
4 years ago
visibility:
public

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