learning about publicly and privately derived classes and access specifiers

[heights]

Thank you, Mr. Igor.

So, what am I doing in this c-tor?

public:
      B() : pubdataB(A::pubdataA)
      {/*empty body*/}

Could you please tell me? What's the purpose of assigning an instance of B a data member of class A which is a base class? Thank you

Best wishes
H