改变参考 [英] changing reference

问题描述

请考虑以下代码...


string a =" 1";

string b =" 2";

string& c = a;


如何更改c以引用b而不是？

解决方案

wi******@gmail.com 写道：

考虑以下代码...


string a =" 1";

string b =" 2" ;;

string& c = a;


如何更改c以引用b而不是？

没有合法的C ++方式。


V

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我没有回复最热门的回复，请不要问

wi******@gmail.com 写道：
< blockquote class =post_quotes>
考虑以下代码...


string a =" 1";

string b =" ; 2" ;;

string& c = a;


如何更改c以引用b而不是？

没有怎么样：你不能重新安排参考。

最好


Kai-Uwe Bux

7月17日上午8:14，winst ... @ gmail.com写道：

考虑以下代码...


string a =" 1";

string b =" 2";

string& c = a;


如何更改c以引用b而不是？

初始化引用时，它仍然绑定到该对象，因为引用存在时为
。没有办法重新引用

作为另一个对象的引用。

Hi,

consider the following code...

string a = "1";
string b = "2";
string& c = a;

how do I change c to refer to b instead of a?

解决方案

wi******@gmail.com wrote:

consider the following code...

string a = "1";
string b = "2";
string& c = a;

how do I change c to refer to b instead of a?

There is no legal C++ way.

V
--
Please remove capital ''A''s when replying by e-mail
I do not respond to top-posted replies, please don''t ask

wi******@gmail.com wrote:

consider the following code...

string a = "1";
string b = "2";
string& c = a;

how do I change c to refer to b instead of a?

There is no "how": you cannot reseat a reference.
Best

Kai-Uwe Bux

On Jul 17, 8:14 am, [e-mail] wrote:

Hi,

consider the following code...

string a = "1";
string b = "2";
string& c = a;

how do I change c to refer to b instead of a?

When a reference is initialized, it remains bound to that object as
long as the reference exists. There is no way to rebind a reference to
a different object.

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