C++ Virtual function being hidden

Question

I\'m having a problem with C++ inheritance.

I have a class hierarchy:

class A {
public:
   virtual void onFoo() {}
   virtual void onFoo(int i) {}
};         


        

Answer 1

Methods on class A and B should be public. That, and you are missing semi-colons at the end of each class declaration.

class A {
public:
   virtual void onFoo() {}
   virtual void onFoo(int i) {}
};

class B : public A {
public:
    virtual void onFoo(int i) {}
};

class C : public B {
};


int main() {
    C* c = new C();
    c->onFoo(); //Compile error - doesn't exist
}