从类返回引用到 this

Return reference from class to this(从类返回引用到 this)

问题描述

我有以下 foo 类的成员.

I have the following member of class foo.

foo &foo::bar()
{
   return this;
}

但我收到编译器错误.我做错了什么蠢事?

But I am getting compiler errors. What stupid thing am I doing wrong?

编译器错误 (gcc):错误:'foo&' 类型的非常量引用的初始化无效来自 'foo* const' 类型的临时文件

Compiler error (gcc): error: invalid initialization of non-const reference of type 'foo&' from a temporary of type 'foo* const'

推荐答案

this 是一个指针.所以应该是 return *this;

this is a pointer. So it should be return *this;

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