类函数指针的动态映射(回调函数)

 

class iphone

{

public:

iphone();

~iphone();

void init();

void ShowStar();

void ShowScore();

private:

typedef void(iphone::*CALLBACK_FUN)();

CALLBACK_FUNpFun;

//听说函数表是静态的 所以这个map也要定义成静态...

map<int,CALLBACK_FUN>funList;

};

 

 

//iphone.cpp

iphone::iphone()

{

}

iphone::~iphone()

{

}

void iphone::ShowStar()

{

printf ("showstar/n");

} 

void iphone::ShowScore()

{

printf("showscore/n");

} 

void iphone::init()

{

pFun =(CALLBACK_FUN)&iphone::ShowStar;

funList[1] = pFun;

pFun = (CALLBACK_FUN)&iphone::ShowScore;

funList[2] = pFun;

for(map<int,CALLBACK_FUN>::iterator it = funList.begin();it!=funList.end();++it)

{

//重点来了...

(this->*(it->second))();

} 

} 

 

template <typename T> class Singleton {

public:

Singleton( void ) { }

virtual ~Singleton( void ) { }

public:

static T* GetSingletonPtr( void )

{

static T ms_Singleton;

return &ms_Singleton;

}

};