Thread: How do you Access base variable from class outside the hierarchy?

How do you access a variable from a base class outside the class hierarchy?

example:

Code:

class Base
{
    ...
    int x;
}

class Sub : public Base
{
    ...
    void method1(Sub* sub); //this method can pass it self
    //to a method2 in class wantsToAccessX
}

class wantsToAccessX
{
    ...
    void method2(Sub* sub) //method that looks at variable x
}

Now the variable x is accessable from class Sub, but i cant figure out how to access x from the other class wantsToAccessX. Have tried things like sub.x and sub->x.

It the only way to do this with a getterMethod in class Sub?