C++ - Public vs. protected vs. private inheritance

With public inheritance:

  • public members in the base class, stay public in the derived class
  • protected members in the base class, stay protected in the derived class
  • private members in the base class, are hidden to the derived class

With protected inheritance:

  • public members in the base class, become protected in the derived class
  • protected members in the base class, become protected in the derived class
  • private members in the base class, are hidden to the derived class

With private inheritance:

  • public members in the base class, become private in the derived class
  • protected members in the base class, become private in the derived class
  • private members in the base class, are hidden to the derived class

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© Richard McGrath