包括另一头文件头 [英] Include a header in another header file

问题描述

我在.h文件中定义的结构项目。现在，我定义另一个结构TPCB 在另一个.H是同一个项目的一部分，我需要的 TPCB 有一个项目。我以为只是让同一TURBOC项目的一部分，让我在其他头文件中使用项目，但编译器会引发我未定义类型：ITE 。

I've defined a struct item in a .h file. Now I'm defining another struct tPCB in another .h which is part of the same project, and I need the tPCB to have an item. I thought that just making part of the same TurboC project would allow me to use item in the other header file, but the compiler throws me "undefined type: ite".

我想我无论如何都必须包括关于第二个第一头，但是我已经看到了同样类似code这不这样做的工作。

I guess I somehow have to include the first header on the second one, However I have seen the same a similar code which works without doing so.

是否有任何其他方式不仅仅是增加一个的#include 线，使其工作？

Is there any other way than just adding an #include line to make it work?

推荐答案

如果您的.c 的#include ■在正确的顺序两个.h文件，它会工作。这可能是在你记得的情况下发生了什么。最安全的做法是的#include 所有定义了你的依赖，并依赖于包括守卫在每个的.h让事情被多重定义。文件

If your .c #includes the two .h files in the proper order, it will work. That's probably what happened in the case you remember. The safest course is to #include every file that defines your dependencies, and rely on the include guards in each .h to keep things from being multiply defined.

这篇关于包括另一头文件头的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！