代码中的注释页眉和页脚真的有必要吗？ [关闭]

许多公司编码标准要求每个文件中都有大量的注释页眉和页脚。就像是：

// MyFile.cpp
//
//  Copyright (c) 200x Company ABC
// 
//  This file is a copyrighted... blah blah blah
//

<... some code ...>

// Copyright (c) 200x Company ABC
//
//  Change history:
//     1.0  -  Blah
//     1.1  -  Blah, blah..

所以，问题是——为什么我们需要这个？这真的有必要声明文件内容的版权吗？或者这是一种已成为标准的误导性做法？ 有人在不需要这样的公司工作吗？

首先，更改历史记录毫无意义，请使用您的 SCM。

A copyright statement is not strictly required (copyright is automatic)¹, but if you are publishing source then likely including it will be felt to be safer². The full licence statement would probably be better in a separate file and then referenced (this is what Boost http://www.boost.org/users/license.html#FAQ does).

¹ Wikipedia http://en.wikipedia.org/wiki/Copyright has a reasonable summary, but you really need to take your own legal advice.

² Especially by lawyers playing it safe.