Определение принадлежности объекта нужному классу

class A
{
private:
    string name = "classA";
public:
    void Action() 
    {
        cout << name << " did something once" << endl;
    }
 
virtual void Action2() 
    {
        cout << name << " did something twice" << endl;
    }
 
    void Action3() 
    {
        cout << name << " did something third" << endl;
    }
 
virtual string classname(){ return name; }
 
virtual bool IsA(string Name)
{
    if(Name == name) return true;
}
 
    A(){}
 
    A(char *Name) { name = Name;}
 
    A(A &p) { name = p.name; }
 
    A(A *p) { name = p->name;}
 
virtual ~A(){}
 
};
 
class B: public A
{
private:
    string name = "classB";
public:
    virtual void Action2()
    {
        cout << name << " did something twice too" << endl;
    }
 
    void Action3()
    {
        cout << name << " did something third too" << endl;
    }
    
    virtual string classname(){ return name; }
 
 
    virtual bool IsA(string Name)
    {   
        if(Name == name || A::IsA(Name) ) // <<----------!!!!
             return true;
    }
};

virtual bool IsA(string Name)
{
    if(Name == name) 
         return true;
    return false; // !!!!!!!!!!!!!!
}

virtual bool IsA(string Name)
    {   
        return (Name == name || Name==A::name); // <<----------!!!!
    }