c++ 類模版、成員函數模版、函數模版 用法

C++函數模版與類模版。

template <class T>

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

}//函數模版

template <class T>//類模版

class CTemplate{

public:

    void SWap(T &first, T &second){

    }

};

 

#include <iostream>
class Single{
public:
    static Single*  ShareInstance();
    static void ReleaseInstance();
     template<class Tex>//要成員函數實現模版用法，而類不是模版類。需要寫成這個格式
    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(){
    
}