c++ 类模版、成员函数模版、函数模版 用法

C++函数模版与类模版。

template <class T>



void SwapFunction(T &first, T &second){



}//函数模版

template <class T>//类模版

class CTemplate{

public:

    void SWap(T &first, T &second){

    }

};

 

#include <iostream>

class Single{

public:

    static Single*  ShareInstance();

    static void ReleaseInstance();

     template<class Tex>//要成员函数实现模版用法，而类不是模版类。需要写成这个格式

    void SwapEx(Tex &obj1, Tex &obj2){

    }

private:

    Single();

    ~Single();

    Single(const Single &other);

    Single& operator=(const Single &other);

    

private:

    static Single *m_pObj;

};



Single* Single::m_pObj = NULL;



Single* Single::ShareInstance(){

    if (NULL == m_pObj) {

        Single obj;

        m_pObj = new Single();

    }

    return m_pObj;

}



void Single::ReleaseInstance(){

    if (m_pObj) {

        delete m_pObj;

        m_pObj = NULL;

    }

}



Single::Single(){

    

}

Single::~Single(){

    

}