一個(gè)C++程序：向量的加 減 乘運(yùn)算
我編了下面的程序,模擬向量的三種運(yùn)算.
可是編譯的時(shí)候出現(xiàn)錯(cuò)誤：error C2248:'len' :cannot access private member declared in class 'vector'
see declaration of 'len'
把v和len改為工友成員后編譯成功,可是程序運(yùn)行到一半時(shí)就會(huì)彈出錯(cuò)誤
為什么呢
請(qǐng)大蝦們指點(diǎn)一下啊`````
#include
#include
class vector
{public:
vector(int =1);
vector(int *,int );
vector(vector&);
vector();
friend vector operator+(vector&,vector&);
friend vector operator-(vector&,vector&);
friend int operator*(vector&,vector&);
vector & operator=(vector&);
friend ostream&operator(ostream &output,vector &);
private:
int *v;int len;
};
vector::vector(int size)
{if(size100){cout