是否可以将对象分配给int?

本文介绍了是否可以将对象分配给int?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我有一个CCounter类，该类保存并具有由互斥锁保护的整数值.我已经定义了多个运算符，例如post/pre inc/dec返回一个整数，所以我可以这样做:

I have a CCounter class which holds and integer value protected by mutex. I've defined several operators like post/pre inc/dec returning an integer so I can do:

CCounter c(10); int i = c++;

但是如何处理像i = c这样的简单任务呢?我试图定义朋友operator =，但是它给了我

but what do I do with a simple assignment like i = c ? I tried to define friend operator= but it gives me

operator=(int&, const CCounter&)’ must be a nonstatic member function

错误.请指教.谢谢.

推荐答案

您需要定义一个从CCounter转换为int的转换运算符.将此成员添加到您的班级:

You need to define a casting operator that casts from CCounter to int. Add this member to your class:

operator int() const { return ...; }