请说明以下功能 [英] Please explain the following function

问题描述

我遇到了一个以以下内容开头的函数定义:

整数运算符*(向量&y)
{
身体
}

在运算符后加*并在括号前打开此函数的含义是什么?

I have come across a function definition starting as:

int operator*(vector &y)
{
body
}

After putting * just after operator and before opening brace of argument what this function means?

推荐答案

我是 ^ ]

这是C ++提供的一项功能，称为运算符重载.如果在类对象的上下文中使用了运算符，则可以使用它来更改其含义.

看看下面的代码.

This is a feature provided by the C++ called operator overloading . Using this you can change the meaning of operator if it is used in context of your class object.

Have a look at the following code.

Class YourClass
{

public :

int operator*(vector &y)
{
body

}

};

main ()
{
   vector v;
   YourClass y;
   y*v;    ///Here operator* function will be called and v will be passed as a parameter

}

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