其中SYS / types.h中位于何处？ [英] Where is sys/types.h located?

问题描述

我刚刚发现的＆LT;文件stdlib.h＆GT; 和＆LT; stdio.h中＆GT; 头是位于 / usr / include目录文件夹中的Ubuntu的服务器，但我没有找到 SYS / types.h中。

I just found out that the <stdlib.h> and <stdio.h> headers are located in the /usr/include folder in Ubuntu server, but I don't find sys/types.h.

和我开始怀疑编译器实际上不会使用头文件中的 / usr / include目录文件夹中。

And I start to suspect the compiler won't actually use the header file in the /usr/include folder.

这是真实的，其中该文件在什么位置？

Is this true, and where is the file located?

推荐答案

我的Debian框（希望Ubuntu的没有​​宰杀它的在他们的热情太的多）有它在 /usr/include/sys/types.h 。

My Debian box (and hopefully Ubuntu haven't butchered it too much in their zeal) has it in /usr/include/sys/types.h.

您最好的选择就是先执行：

Your best bet is to first execute:

find /usr/include -name types.h

然后

find / -name types.h

如果你没有找到它的第一个。

if you don't find it in the first one.

但是，请记住，发展东西，甚至可能不是的安装。的我就成像服务器框，就是要用作服务器，它不会让我感到吃惊，如果编译器和一堆其他的东西是不是默认安装的一部分（但它有很多的服务器之类的东西的ftpd 或的Apache 等）。

However, keep in mind that the development stuff may not even be installed. I would imaging a server box is meant to be used as a server and it wouldn't surprise me if the compiler and a bunch of other stuff was not part of the default install (but it would have a lot of server things like ftpd or Apache and so on).

如果编译器的地方中找到它，你只是不知道在哪里，你可以使用类似：

If the compiler is locating it somewhere and you just don't know where, you can use something like:

echo "#include <sys/types.h>" | gcc -E -x c - | grep /types.h

要找出它从得到它。

或者

echo "#include <stdio.h>" | gcc -E -x c - | grep /stdio.h

对于其他头你担心。

for the other header you're worried about.

旁白：那 GCC 命令行pre-处理阶段后停止（ -E ），强制文件被视为C源$ C ​​$ C（ -xc ），并从标准输入（检索程序 - ），在这种情况下，从回声语句。

Aside: That gcc command line stops after the pre-processing phase (-E), forces the file to be treated as C source code (-x c) and retrieves the program from standard input (-), in this case from the echo statement.

最后的grep 只是剔除了不重要的行。

The final grep just strips out the unimportant lines.

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