C + + understands virtual table again

Source: Internet
Author: User

#include <iostream>using namespace STD;classbase{ Public:Virtual voidFun1 () {cout<<"base::fun1 ()"<< Endl; }Virtual voidFun2 () {cout<<"base::fun2 ()"<< Endl; }};classSon: Publicbase{ Public:voidFun1 () {cout<<"son::fun1 ()"<< Endl; }};voidDeal (int*P) {typedef void(*pfun) ();//function pointer.     //Remember that the Terminator after each virtual table is 0 (NULL).      for(inti =0; P[i]! = NULL;        i++) {Pfun fun = (pfun) p[i];    Fun (); }}voidTest () {Base B; Son s;int*p = (int*)*((int*) (&b));//Here is the address of the virtual table. Deal (P);//The virtual table address is passed in. }intMain () {test ();return 0;}

C + + understands virtual table again

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