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急！谁知道overloading和addition的结合怎么写？

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daphnechen

2010-7-25 11:35 AM

overloading和addition的结合怎么写？
有谁会？可以帮我下吗~
一开始要怎么做？
我完全不会~谁可以教教我？
拜托~谢谢~

daphnechen

2010-7-25 12:08 PM

真的没有人会吗？？
救命啊~！@@

shippo

2010-7-26 05:45 PM

你是要用overloading operators for +(addition) 吧？？
在什么language?目的是什么麻烦说出来。。。

shippo

2010-7-26 05:57 PM

本帖最后由 shippo 于 2010-7-26 05:59 PM 编辑

/*
给你一个C++的例子。。。。
这里我用overload + 来取得两个vector(a and b)的和。
*/
#include <iostream>
using namespace std;
class CVector {
public:
int x,y;
CVector () {};
CVector (int,int);
CVector operator + (CVector);
};
CVector::CVector (int a, int b) {
x = a;
y = b;
}
CVector CVector::operator+ (CVector param) {
CVector temp;
temp.x = x + param.x;
temp.y = y + param.y;
return (temp);
}
int main () {
CVector a (3,1);
CVector b (1,2);
CVector c;
c = a + b;
cout << c.x << "," << c.y<<endl;
system("pause");
return 0;
}

复制代码

shippo

2010-7-26 06:02 PM

+ 是一个binary operator ,declare的方法如下：
（下面转载自msdn microsoft)
ret-type operatorop( arg )

where ret-type is the return type, op is one of the operators listed in the preceding table, and arg is an argument of any type.

To declare a binary operator function as a global function, you must declare it in the form:

ret-type operatorop( arg1, arg2 )

where ret-type and op are as described for member operator functions and arg1 and arg2 are arguments. At least one of the arguments must be of class type.

calvenyow

2010-9-12 10:49 PM

我只懂function overloading

kampung30

2011-5-2 03:57 AM

overloading很多种咯　，那里一个？

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急！谁知道overloading和addition的结合怎么写？

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