fork download
copy 
  1. #include <iostream>
  2. #include <string>
  3.  
  4. class pracownik
  5. {
  6.     private:
  7.         std::string m_fullName;
  8.         std::string m_adres;
  9.         unsigned int m_nip;
  10.     public:
  11.         pracownik() {};
  12.         virtual ~pracownik() {} // musi być
  13.         //virtual void show(void);
  14.         friend std::ostream & operator<<(std::ostream & os, const pracownik & x);
  15. };
  16.  
  17. class programista : virtual public pracownik
  18. {
  19.     private:
  20.         std::string m_language;
  21.     public:
  22.         programista() : pracownik() {};
  23.         //virtual void show(void);
  24.         friend std::ostream & operator<<(std::ostream & os, const programista & x);        
  25. };
  26.  
  27. class piosenkarz : virtual public pracownik
  28. {
  29.     private:
  30.         int voisceStrenght;
  31.     public:
  32.         piosenkarz() : pracownik() {};
  33.         //virtual void show(void);
  34.         friend std::ostream & operator<<(std::ostream & os, const piosenkarz & x);
  35. };
  36.  
  37. std::ostream & operator<<(std::ostream & os, const pracownik & x)
  38. {
  39.     os << "Imie i nazwisko: " << x.m_fullName << std::endl
  40.        << "Adres: " << x.m_adres << std::endl
  41.        << "NIP: " << x.m_nip << std:: endl;
  42.  
  43.     return os;
  44. }
  45. std::ostream & operator<<(std::ostream & os, const programista & x)
  46. {
  47.     os << (const pracownik &)x;
  48.     os << "Jezyk: " << x.m_language << std::endl;
  49.  
  50.     return os;
  51. }
  52. std::ostream & operator<<(std::ostream & os, const piosenkarz & x)
  53. {
  54.     os << (const pracownik &)x;
  55.     os << "Sila glosu: " << x.voisceStrenght << std::endl;
  56.  
  57.     return os;
  58. }
  59.  
  60. int main()
  61.   {
  62.    const piosenkarz p1;
  63.    std::cout<<p1<<std::endl;
  64.    const programista p2;
  65.    std::cout<<p2<<std::endl;
  66.    const pracownik *tb[]={&p1,&p2};
  67.    std::cout<<*(tb[0])<<std::endl;
  68.    std::cout<<*(tb[1])<<std::endl;
  69.    return 0;	
  70.   };
Success #stdin #stdout 0s 3300KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
Imie i nazwisko: 
Adres: 
NIP: 3077559768
Sila glosu: 134524145

Imie i nazwisko: 
Adres: 
NIP: 3074655973
Jezyk: 

Imie i nazwisko: 
Adres: 
NIP: 3077559768

Imie i nazwisko: 
Adres: 
NIP: 3074655973
https://ideone.com/gDmdpq
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
secret

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!