Loki 单键的使用

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1.Loki的下载地址 http://sourceforge.net/projects/loki-lib/

2.把loki库考到自己的工程下

3.引入

#include "loki/Singleton.h"using namespace Loki;

4.定义单键

typedef SingletonHolder<fish, CreateUsingNew, PhoenixSingleton> TheFish;

详细的代码如下：

animal.h

#ifndef ANIMAL_H_H#defineANIMAL_H_Hclass animal{public:animal();~animal();void eat();void sleep();virtual void breathe();};#endif

animal.cpp

#include "animal.h"#include <iostream>using namespace std;animal::animal(){}animal::~animal(){}void animal::eat(){}void animal::sleep(){}void animal::breathe(){cout<<"animal breathe"<<endl;}

fish.h

#include "animal.h"#ifndef FISH_H_H#define FISH_H_Hclass fish:public animal{public:void breathe();};#endif

fish.cpp

#include "fish.h"#include <iostream>using namespace std;void fish::breathe(){cout<<"fish bubble"<<endl;}

EX10.CPP

#include "animal.h"#include "fish.h"#include <iostream>#include "loki/Singleton.h"using namespace Loki;using namespace std;typedef SingletonHolder<fish, CreateUsingNew, PhoenixSingleton> TheFish;void fn(animal *pAn){pAn->breathe();}void main(){//animal *pAn;//fish fh;//pAn=&fh;//fn(pAn);TheFish::Instance().breathe();int n;cin>>n;}