可以gcc的后preprocessing输出C code吗？ [英] Can gcc output C code after preprocessing?

问题描述

我使用这似乎有很多preprocessing指令，支持C以外的很多语言让我可以学习什么库正在做，我想看到​​C $ C的开源库$ C说我以后preprocessing编译，更像是我会写。

I'm using an open source library which seems to have lots of preprocessing directives to support many languages other than C. So that I can study what the library is doing I'd like to see the C code that I'm compiling after preprocessing, more like what I'd write.

可以的gcc（或任何其他工具在Linux中常用的）读取此库，但输出C code，它有preprocessing转换成什么，也可读人？

Can gcc (or any other tool commonly available in Linux) read this library but output C code that has the preprocessing converted to whatever and is also readable by a human?

推荐答案

CPP是preprocessor。

cpp is the preprocessor.

运行 CPP FILENAME.C 来输出preprocessed code，或更好的，它重定向到一个文件
中共FILENAME.C＆GT;文件名。preprossed

Run cpp filename.c to output the preprocessed code, or better, redirect it to a file with ccp filename.c > filename.preprossed

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