c++——类模板的显示(部分)具体化

古城微笑少年丶 2022-12-02 10:54 126阅读 0赞

#include<iostream>
    using namespace std;
    
    //类模板的显示具体化
    
    //类模板
    template<class T1, class T2> class Point{ 
    public:
    	Point(T1 x, T2 y) :m_x(x), m_y(y){ }
    public:
    	T1 getX() const {  return m_x; }
    	void setX(T1 x){  m_x = x; }
    	T2 getY()const {  return m_y; }
    	void setY(T2 y){  m_y = y; }
    	void display() const;
    private:
    	T1 m_x;
    	T2 m_y;
    };
    
    template<class T1,class T2>
    void Point<T1, T2>::display() const{ 
    	cout << "x = " << m_x << ", y = " << m_y << endl;
    }
    
    //类模板的显示具体化
    template<> class Point < char*, char* > { 
    public:
    	Point(char *x, char *y) :m_x(x), m_y(y){ }
    public:
    	char *getX() const{  return m_x; }
    	void setX(char *x){  m_x = x; }
    	char *getY() const{  return m_y; }
    	void setY(char *y){  m_y = y; }
    	void display() const;
    
    private:
    	char* m_x;
    	char* m_y;
    };
    
    void Point<char*, char*>::display() const{ 
    	cout << "x = " << m_x << " | y = " << m_y << endl;
    }
    
    int main()
    { 
    	(new Point<int, int>(10, 20))->display();
    	(new Point < int, char * >(10, "东经180度"))->display();
    	(new Point<char*, char*>("东经180度", "北纬210度"))->display();
    
    	return 0;
    }

#include<iostream>
    using namespace std;
    
    //类模板的(部分)显示具体化
    
    //类模板
    template<class T1, class T2> class Point{ 
    public:
    	Point(T1 x, T2 y) :m_x(x), m_y(y){ }
    public:
    	T1 getX() const {  return m_x; }
    	void setX(T1 x){  m_x = x; }
    	T2 getY()const {  return m_y; }
    	void setY(T2 y){  m_y = y; }
    	void display() const;
    private:
    	T1 m_x;
    	T2 m_y;
    };
    
    template<class T1,class T2>
    void Point<T1, T2>::display() const{ 
    	cout << "x = " << m_x << ", y = " << m_y << endl;
    }
    
    //类模板的（部分）显示具体化
    template<typename T2> class Point < char*, T2> { 
    public:
    	Point(char *x, T2 y) :m_x(x), m_y(y){ }
    public:
    	char *getX() const{  return m_x; }
    	void setX(char *x){  m_x = x; }
    	char *getY() const{  return m_y; }
    	void setY(T2 y){  m_y = y; }
    	void display() const;
    
    private:
    	char* m_x;
    	T2 m_y;
    };
    
    //void Point<char*, char*>::display() const{ 
    // cout << "x = " << m_x << " | y = " << m_y << endl;
    //}
    
    template<typename T2>
    void Point<char*, T2>::display() const{ 
    	cout << "x = " <<m_x<< " & y = " << m_y << endl;
    }
    
    int main()
    { 
    	(new Point<int, int>(10, 20))->display();
    	(new Point < int, char * >(10, "东经180度"))->display();
    	(new Point<char*, char*>("东经180度", "北纬210度"))->display();
    
    	return 0;
    }