/*
 * =====================================================================================
 *
 * Filename: virtualTable.cpp
 *
 * Description:
 *
 * Version: 1.0
 * Created: 08/31/2017 10:16:22 AM
 * Last Modified: 2021年06月20日 20:10:27
 * Revision: none
 * Compiler: gcc
 *
 * Author: zt (),
 * Organization:
 *
 * =====================================================================================
 */

#include <stdio.h>
#include <stdlib.h>

#include <iostream>

using namespace std;


class Base
{
 private:
 virtual void f()
 {
 cout << "Base::f" << endl;
 }

 virtual void g()
 {
 cout << "Base::g" << endl;
 }

 virtual void h()
 {
 cout << "Base::h" << endl;
 }
};

typedef void ( *Fun ) ( void );




int main ( int argc, char* argv[] )
{
 ( void ) argc;
 ( void ) argv;
 Base b;
 Fun pFun = NULL;

 cout << "virtual table addr:" << ( void* ) &b << endl;
 cout << "virtual table -first fun addr:" << ( void* ) * ( void** ) ( &b ) << endl;

 //pFun = ( Fun ) * ( ( void** ) ( * ( void** ) ( &b ) ) );
 pFun = ( Fun ) * ( void** ) ( * ( void** ) ( &b ) );
 pFun();

 pFun = ( Fun ) * ( ( void** ) ( * ( void** ) ( &b ) ) + 1 );
 pFun();

 return 0;
}