间接调用指针所指的类成员的方法

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“间接调用指针所指的类成员的方法”,把我的代码列出如下:
(编译平台Windows2003,cygwin + g++3.4.1,vc++2003)

OperatorExClass.h(文件)------
// About ->* operator example.

class Class
{
public:
 int Fun (void);

 int m_var;
};

------

OperatorExClass.cpp------
// About ->* operator example.

#include <iostream>
#include "OperatorExClass.h"

int Class :: Fun (void) {
 std :: cout << "Call function.\n";
 std :: cout << m_var << "\n";
 std :: cout << "End Call\n";

 return 0;
}

------

OperatorEx.cpp------
// About ->* operator example.

#include "OperatorExClass.h"

int main (void) {
 Class *pClass = new Class();
 int (Class::*pFun) (void) = &Class::Fun; //注意括号
 int (Class::*pm_var) = &Class::m_var;

 (pClass->*pm_var) = 321;
 (pClass->*pFun)();

 delete pClass;
 
 return 0;
}

------
还有个方便的技巧:
typedef int (Class::*PFUN) (void);
PFUN pFun = &Class::Fun;

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