C++的单例模式

[code][code] 

#ifndef __SINGLETON_H__

#define __SINGLETON_H__

#include <memory>

template<class T>

class SingleT

{

public:

static T * Instance()

   {

if (!p)

  {

p = new T;

}

return p;

}

static void Create()

   {

if (!p)

  {

p = new T;

}

}

static void Destroy()

   {

if (p)

  {

delete p;

p = NULL;

}

}

static T * Get()

   {

return p;

}

static void Reset()

   {

Destroy();

Create();

}

protected:

static T * p;

};

template <class T>

T * SingleT<T>::p = NULL;

#endif

[code]
[code] 

#ifndef __SINGLETONTEST_H__

#define __SINGLETONTEST_H__

#include "Singleton.h"

#include <iostream>

class SingletonTest : public SingleT<SingletonTest>

{

public:

SingletonTest(){};

~SingletonTest(){};

public:

inline void test(){std::cout<<"test()"<<std::endl;}

};

#endif