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c++extend

C++ Extending Class Forcing some methods private

My question is simple: ~Given two classes, I want to one of them to extend the other one, but turning some methods to be private:

Class B
public Method a();
public Method b();
public Method c();

Class A extends B
private Method a();
private Method b();
public Method c();

Is this possible and how? Thanks!

Solution

  • This is what Private Inheritance is for.

    class A:   private B
{
    // All methods of class B are now private.
    // To make some "public" again:
    public:
        Method c()  { return B::c(); } // Call the private c-method from class B.
};