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  1. #include <iostream>
  2.  
  3. class BaseClass
  4. {
  5. public:
  6.     virtual void f() const;
  7. };
  8.  
  9. void BaseClass::f() const
  10. {
  11.     std::cout << "In base class function\n";
  12. }
  13.  
  14. class DerivedClass: public BaseClass
  15. {
  16. public:
  17.     void f() const override;
  18. };
  19.  
  20. void DerivedClass::f() const
  21. {
  22.     std::cout << "In derived class function\n";
  23. }
  24.  
  25. int main()
  26. {
  27.     DerivedClass derived_object;
  28.     BaseClass &base_object = derived_object;
  29.     BaseClass *base_object_ptr = &derived_object;
  30.  
  31.     base_object.f();//вызовет f, определённый в суперклассе
  32.     base_object_ptr -> f();//вызовет f, определённый в наследнике
  33.     return 0;
  34. }
Success #stdin #stdout 0s 4564KB
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In derived class function
In derived class function
https://ideone.com/Tk2U1l
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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