理念解决隐含包括C，C ++

问题描述

我刚刚想出了一个主意来解决问题，并希望分享。很抱歉，如果过于平庸。

I've just came up with an idea to solve a problem and wanted to share it. Sorry if too banal.

所以，一个大的C ++项目我检讨，包含了许多包括依赖于符号从其他包括，但不包括所需要的包括。在集结过程结果的任何细微变化，失踪符号的失败。

So, a big C++ project I am reviewing, contains many includes which relies on symbols from other includes but which don't include the required includes. Any slight change in build-procedure results in "missing symbol" failures.

因此​​，为了检查所有包括自我遏制一次，我搜索所有的* .h，创建于飞CPP文件只包含的#include语句来此的.h文件，并尝试编译。最后我得到的好与坏包含文件的列表。
酷派是不是:-)
还是有更简单的解决方案呢？

So in order to check all includes for self-containment at once, I search for all *.h, create on the fly a cpp-file which only contains #include -statement with this .h file and try to compile it. At the end I obtain a list of "good" and "bad" include files.Cool isn't it :-) Or is there an easier solution to do it?

推荐答案

如果每个.cpp文件包括它首先是自己的头文件，然后其他的标题，你会得到这张支票，而无需使用外部工具。

If every .cpp file includes it's own header-file first, and then other headers, you'll get this check without using external tools.

这其实是 Google的C ++风格指南出于同样的原因：

This is actually part of Googles C++ Style Guide for the same reason:

在preferred订货减少隐患
  依赖。我们希望每个头
  文件被独立编译。该
  实现这一目标最简单的方法是使
  确保他们每个人是
  第一.h文件中包含（#include）在某些.CC。

如果您有没有相应的.cpp文件的头文件，你必须做一些特别的他们。

If you have any header files that does not have a corresponding .cpp-file, you'd have to do something special for them.

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