＃包括在C / C绝对路径++语法 [英] #include absolute path syntax in c/c++
问题描述
由于某些原因，我需要使用的#include 的绝对路径我的系统。
For some reason, I need to use the absolute path in #include for my system.
中使用的#include？D：\\ TEMP \\ temp_lib \\ temp.h接受
我曾尝试这些不同的用法，这一切似乎工作。
I have tried these different usage and it all seems to work.
-
的#includeD：\\ TEMP \\ temp_lib \\ temp.h -
的#includeD：\\\\ \\\\温度\\\\ temp_lib temp.h -
的#includeD：/temp/temp_lib/temp.h
#include "D:\temp\temp_lib\temp.h"#include "D:\\temp\\temp_lib\\temp.h"#include "D:/temp/temp_lib/temp.h"
我只是想知道我应该使用哪一个？我使用MSVC 2005年我在想，如果所有的三个仍将在Linux或其他环境中工作。
I just want to know which one should I use? I am using MSVC 2005. I'm wondering if all three will still work in Linux or other environment.
我期待＃1是在编译过程中出现错误，但我没有得到任何。任何人有任何想法，这是为什么？
I was expecting #1 to be an error during compilation, but I did not get any. Anyone has any idea why that is?
推荐答案
每个实现我所知道的，肯定MSVC 2005和Linux，允许您指定在其中找到头文件的目录路径。你应该包括D：的目录路径列表中\\ TEMP \\ temp_lib，然后用
Every implementation I'm aware of, and certainly MSVC 2005 and linux, allows you to specify the directory paths in which to find header files. You should include D:\temp\temp_lib on the list of directory paths, and then use
#include <temp.h>
有关GCC，使用-I的路径的。对于MSVC，请参阅Where不Visual Studio中查找C ++头文件？
For gcc, use -I path. For MSVC, see Where does Visual Studio look for C++ Header files?
之所以＃1不是一个语法错误是，虽然它看起来像一个字符串，它不是。该规范是
The reason that #1 isn't a syntax error is that, although it looks like a string literal, it isn't. The specification is
#include "q-char-sequence"
当Q-char是
Where q-char is
源代码字符集，除了换行字符的任何成员
和
any member of the source character set except the new-line character and "
在特别 \\ 并没有特殊的含义。在Q-字符序列的跨pretation是实现定义的。
In particular, \ has no special meaning. The interpretation of the q-char-sequence is implementation-defined.
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