Calling non-static method directly

Question

I am working on a project and I am facing a little bit strange code which I cannot understand why and how can this happen !

I have a class Foo and Baz, and Foo has a non-static method that is called from Baz class without instantiating Foo:

class Foo {
    public:
       void qux(int a, int b);
};


class Baz {
    public:
        void bar(void);
};


void Baz::bar(void){
    Foo::qux(2,3);          // This should not happen as qux is not a static method !!
}

Answer 1

The only way that would work is if Baz was derived from Foo at some level.

Or, of course, Foo bears a different meaning in that scope (via a using, typedef, define or other).

If neither apply, your compiler is seriously broken.

Answer 2

This can happen in case of Baz is inherited from Foo.

In this case you can call method of the base class directly in the form that you mentioned:

void Baz::bar(void){
    Foo::qux(2,3);
}