pointertomemberdata.cpp

Thinking in C++, 2nd Edition, Volume 2. 英文doc版 每章源代码

//: C11:PointerToMemberData.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 2000
// Copyright notice in Copyright.txt
#include <iostream>
using namespace std;

class Data {
public:  
  int a, b, c; 
  void print() const {
    cout << "a = " << a << ", b = " << b
         << ", c = " << c << endl;
  }
};

int main() {
  Data d, *dp = &d;
  int Data::*pmInt = &Data::a;
  dp->*pmInt = 47;
  pmInt = &Data::b;
  d.*pmInt = 48;
  pmInt = &Data::c;
  dp->*pmInt = 49;
  dp->print();
} ///:~