复制构造函数里使用模板类对象作为参数

[snowdesert]

复制构造函数里使用模板类对象作为参数,有一句报错,怎么改?

#include <iostream>
using namespace std;

template <typename T>
class Point
{
	T x,y;
public:
	Point(T x1,T y1){x=x1;y=y1;cout<<x<<","<<y<<endl;} 
	Point(const Point& p1){x=p1.x;y=p1.y;} 
};

template <typename T>
class LineDerive:public Point<T> 
{
	T x2,y2;
public:
	LineDerive(T i1,T j1,T i2,T j2):Point<T>(i1,j1){x2=i2;y2=j2;} 
};

template <typename T>
class LineInclude
{
	Point<T> p1,p2; 
public:
	LineInclude(T i1,T j1,T i2,T j2):p1(i1,j1),p2(i2,j2){} 
	LineInclude(const Point& pt1,const Point& pt2):p1(pt1),p2(pt2){}
};

void main()
{
	Point<int> p1(1,2),p2(3,4);
	LineDerive<int> ld1(5,6,7,8); 	
	LineInclude<int> li1(9,10,11,12);
	LineInclude<int> li2(p1,p2); //这一句报错，怎么改？
}

[lzr4304061988012]

#include <iostream>
using namespace std;

template <typename T>
class Point
{
    T x,y;
public:
    Point(T x1,T y1){x=x1;y=y1;cout<<x<<","<<y<<endl;} 
    Point(const Point& p1){x=p1.x;y=p1.y;} 
};

template <typename T>
class LineDerive:public Point<T> 
{
    T x2,y2;
public:
    LineDerive(T i1,T j1,T i2,T j2):Point<T>(i1,j1){x2=i2;y2=j2;} 
};

template <typename T>
class LineInclude
{
    Point<T> p1,p2; 
public:
    LineInclude(T i1,T j1,T i2,T j2):p1(i1,j1),p2(i2,j2){} 
    LineInclude(const Point<T>& pt1,const Point<T>& pt2):p1(pt1),p2(pt2){}//here
};

void main()
{
    Point<int> p1(1,2),p2(3,4);
    LineDerive<int> ld1(5,6,7,8);     
    LineInclude<int> li1(9,10,11,12);
    LineInclude<int> li2(p1,p2); //这一句报错，怎么改？
}

[lzr4304061988012]

1,2
3,4
5,6
9,10
11,12
请按任意键继续. . .

[yshuise]

1,3都是对的

[snowdesert]

谢谢大家 :)

[jia_xiaoxin]

#include <iostream>
using namespace std;

template <typename T>
class Point
{
    T x,y;
public:
    Point(T x1,T y1){x=x1;y=y1;cout<<x<<","<<y<<endl;} 
    Point(const Point& p1){x=p1.x;y=p1.y;} 
};

template <typename T>
class LineDerive:public Point<T> 
{
    T x2,y2;
public:
    LineDerive(T i1,T j1,T i2,T j2):Point<T>(i1,j1){x2=i2;y2=j2;} 
};

template <typename T>
class LineInclude
{
    Point<T> p1,p2; 
public:
    LineInclude(T i1,T j1,T i2,T j2):p1(i1,j1),p2(i2,j2){} 
    LineInclude(const Point<T>& pt1,const Point<T>& pt2):p1(pt1),p2(pt2){}//参数类型因该为模板类型
};

void main()
{
    Point<int> p1(1,2),p2(3,4);
    LineDerive<int> ld1(5,6,7,8);     
    LineInclude<int> li1(9,10,11,12);
    LineInclude<int> li2(p1,p2); //这一句报错，怎么改？
}