#include <iostream>
using namespace std;

class Base {
public:
    virtual void function1() {};

    virtual void function2() {};
};

class A : public Base {
    void function1() override {};
};

class B : public Base {
    void function2() override {};
};

Virtual table for Base {
    function1() = Base::function1();
    function2() = Base::function1();
};

Virtual table for A {
function1() = A::function1();
function2() = Base::function1();
};

Virtual table for B {
function1() = Base::function1();
function2() = B::function1();
};

int main() {

}