Question

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What are access specifiers? Should I inherit with private, protected or public?

I am looking for some code or design pattern to grant access to a private method from another class (C++).

Let’s say I have 1 class OBJ1 :

class OBJ1
{
  public:
    void method1();
    void method2();
}

And another class OBJ2, which instantiate OBJ1 :

class OBJ2
{
  public:
    void method3()
    {
       my_obj.method1();
    }
  private:
    OBJ1 my_obj;
}

Is there a way to access OBJ2::my_obj.method2() from other classes (this method only) ?

Answer 1

You’ve answered your own question: look at method3, which provides a way to call method1 on my_obj via the enclosing class OBJ2. A similar forwarding method could be added to allow access to method2.