C++虚成员函数表vtable

C++虚成员函数表vtable

#include<iostream>
using namespace std;

class base
{
public:
    virtual void v1(){ cout << "base v1" <<endl; }
    virtual void v2(){ cout << "base v2" <<endl; }
};

class derived: public base
{
public:
    virtual void v1(){ cout << "derived v2" <<endl; }
    virtual void v2(){ cout << "derived v2" <<endl; }
};

int main()
{
    base b;
    derived d;
    base *p;
    p = &b;
    p->v1();
    p->v2();
    p = &d;
    p->v1();
    p->v2();
    return 0;
}

reference

C++虚成员函数表vtable