accessing base class public member from derived class

Question

Is it possible to access base class public member from instance of derived class in some other locations in the program.

class base {
public:
    int x;

    base(int xx){
    x = xx;
    }
};

class derived : base {
public:
    derived(int xx) : base(xx){
    }
};

class main {
public:
    derived * myDerived;      

    void m1(){
        myDerived = new derived(5);
        m2(myDerived);  
    }

    void m2(derived * myDerived){
        printf("%i", myDerived->x);
    }    
};

After above code, I got following error.

`error: 'int base::x' is inaccessible`

Answer 1

The problem is that you accidentally use private inheritance here

class derived : base {

This makes all base class members private in the derived class.

Change this to

class derived : public base {

and it will work as expected.