我们在哪里使用.i文件，以及如何生成它们?

问题描述：

我正在浏览GCC手册页，发现以下行:

I was going through the GCC man page, I found the following line:

 file.i
           C source code that should not be preprocessed.

我知道运行gcc -E foo.c会在预处理后停止编译器；但是创建.i文件的实际应用是什么.

I know that running gcc -E foo.c stops the compiler after preprocessing; but what is the real world application of creating .i files.

还可以生成除gcc foo.c -E > foo.i以外的.i文件吗?

Also is there a way of generating a .i files other than gcc foo.c -E > foo.i?

答

.i文件也称为纯C文件".处于预处理阶段

The .i files are also called as "Pure C files". In preprocessing stage

宏将被替换.

评论已删除.

用于条件编译. 如果查看.i文件，您会看到这些内容.

Used for conditional compilation. If you look at the .i file you can see these things.

生成.i文件的命令是-

gcc -E foo.c -o foo.i