计算#include指令问题 [英] computed #include directives questiron
问题描述
我有一堆条件#include语句，比如
#if PLATFORM ==" LINUX"
#include" LinuxImplementation.h"
#elif PLATFORM ==" WINDOWS"
#include" WindowsImplementation.h"
#elif PLATFORM ==" MACINTOSH"
#include" MacintoshImplementation.h"
#endif
我有什么方法可以使用标准预处理器功能将
转换为单个#include stmt，如
#include< PLATFORM" Implementation.h">
其中''PLATFORM''在Implementation.h之前连接在一起？
我在微软的VC7预处理器上的实验还没有/>
到目前为止成功。
谢谢！
I have a bunch of conditional #include statements like
#if PLATFORM == "LINUX"
#include "LinuxImplementation.h"
#elif PLATFORM ==" WINDOWS"
#include "WindowsImplementation.h"
#elif PLATFORM ==" MACINTOSH"
#include "MacintoshImplementation.h"
#endif
Is there some way I can use the standard preprocessor functionality to
transform this into a single #include stmt like
#include <PLATFORM "Implementation.h">
where ''PLATFORM'' gets concatenated in front of "Implementation.h"?
My experiments with Microsoft''s VC7 preprocessor have not been
successful so far.
Thanks!
推荐答案
James写道：
我有一堆条件#include语句，如
#if PLATFORM ==" LINUX"
#include" LinuxImplementation.h"
＃ elif PLATFORM ==" WINDOWS"
#include" WindowsImplementation.h"
#elif PLATFORM ==" MACINTOSH"
#include" MacintoshImplementation.h"
#endif
是否有某些方法可以使用标准预处理器功能将其转换为单个＃包括stmt，如
#include< PLATFORM" Implementation.h">
其中''PLATFORM''在Implementation.h前面连接起来？
到目前为止，我使用微软VC7预处理器的实验还没有成功。
I have a bunch of conditional #include statements like
#if PLATFORM == "LINUX"
#include "LinuxImplementation.h"
#elif PLATFORM ==" WINDOWS"
#include "WindowsImplementation.h"
#elif PLATFORM ==" MACINTOSH"
#include "MacintoshImplementation.h"
#endif
Is there some way I can use the standard preprocessor functionality to
transform this into a single #include stmt like
#include <PLATFORM "Implementation.h">
where ''PLATFORM'' gets concatenated in front of "Implementation.h"?
My experiments with Microsoft''s VC7 preprocessor have not been
successful so far.
提供一个命令行宏类似于
-DPLATFORMIMPL2INCLUDE =" \" LinuxImplementation.h \""
在Linux上和
-DPLATFORMIMPL2INCLUDE =" \" WindowsImplementation.h \"
在Windows上（依此类推），然后执行
#include PLATFORMIMPL2INCLUDE
$ b你的代码中有$ b。
V
-
请通过邮件回复时从我的地址删除资金
Provide a command-line macro that would be different on different
platforms similar to
-DPLATFORMIMPL2INCLUDE="\"LinuxImplementation.h\""
on Linux and
-DPLATFORMIMPL2INCLUDE="\"WindowsImplementation.h\" "
on Windows (and so on), and then do
#include PLATFORMIMPL2INCLUDE
in your code.
V
--
Please remove capital As from my address when replying by mail
Victor Bazarov写道：
Victor Bazarov wrote:
James写道：
我有一堆条件#include语句，如
#if PLATFORM ==" LINUX"
#include" LinuxImplementation.h"
#elif PLATFORM ==" WINDOWS"
#include" WindowsImplementation.h"
#elif PLATFORM ==" MACINTOSH"
#include" MacintoshImplementation.h"
#endif
是否有某些方法可以使用标准预处理器功能将其转换为单个＃包括stmt，如
#include< PLATFORM" Implementation.h">
其中''PLATFORM''在Implementation.h前面连接起来？
到目前为止，我对微软VC7预处理器的实验还没有成功。
I have a bunch of conditional #include statements like
#if PLATFORM == "LINUX"
#include "LinuxImplementation.h"
#elif PLATFORM ==" WINDOWS"
#include "WindowsImplementation.h"
#elif PLATFORM ==" MACINTOSH"
#include "MacintoshImplementation.h"
#endif
Is there some way I can use the standard preprocessor functionality to
transform this into a single #include stmt like
#include <PLATFORM "Implementation.h">
where ''PLATFORM'' gets concatenated in front of "Implementation.h"?
My experiments with Microsoft''s VC7 preprocessor have not been
successful so far.
提供一个不同的命令行宏在Linux和
上类似于不同的平台--DPLATFORMIMPL2INCLUDE =" \" LinuxImplementation.h \""
-DPLATFORMIMPL2INCLUDE =" \" WindowsImplementation.h \" 在Windows上等等，然后再做
#include PLATFORMIMPL2INCLUDE
Provide a command-line macro that would be different on different
platforms similar to
-DPLATFORMIMPL2INCLUDE="\"LinuxImplementation.h\""
on Linux and
-DPLATFORMIMPL2INCLUDE="\"WindowsImplementation.h\" "
on Windows (and so on), and then do
#include PLATFORMIMPL2INCLUDE
无法'他做的事情如下：
#define HEADER_FILE_NAME PLATFORM" Implementation.h"
#include HEADER_FILE_NAME
Couldn''t he do something like:
#define HEADER_FILE_NAME PLATFORM "Implementation.h"
#include HEADER_FILE_NAME
red floyd写道：
red floyd wrote:
Victor Bazarov写道：
Victor Bazarov wrote:
James写道：
我有一堆条件#include语句如
#if PLATFORM ==" LINUX"
#include" LinuxImplementation.h"
#elif PLATFORM ==" WINDOWS"
#include" WindowsImplementation.h"
#elif PLATFORM ==" MACINTOSH"
#include" MacintoshImplementation.h"
#endif
是否有某些方法可以使用标准的预处理器功能将其转换为单个＃包括stmt，如
#include< PLATFORM" Implementation.h">
其中''PLATFORM''在Implementation.h前面连接起来？
到目前为止，我对微软VC7预处理器的实验还没有成功。
I have a bunch of conditional #include statements like
#if PLATFORM == "LINUX"
#include "LinuxImplementation.h"
#elif PLATFORM ==" WINDOWS"
#include "WindowsImplementation.h"
#elif PLATFORM ==" MACINTOSH"
#include "MacintoshImplementation.h"
#endif
Is there some way I can use the standard preprocessor functionality
to transform this into a single #include stmt like
#include <PLATFORM "Implementation.h">
where ''PLATFORM'' gets concatenated in front of "Implementation.h"?
My experiments with Microsoft''s VC7 preprocessor have not been
successful so far.
提供一个不同的命令行宏在Linux和
上类似于不同的平台--DPLATFORMIMPL2INCLUDE =" \" LinuxImplementation.h \""
-DPLATFORMIMPL2INCLUDE =" \" WindowsImplementation.h \" Windows上的
（依此类推），然后做
#include PLATFORMIMPL2INCLUDE
Provide a command-line macro that would be different on different
platforms similar to
-DPLATFORMIMPL2INCLUDE="\"LinuxImplementation.h\""
on Linux and
-DPLATFORMIMPL2INCLUDE="\"WindowsImplementation.h\" "
on Windows (and so on), and then do
#include PLATFORMIMPL2INCLUDE
他不能做类似于：
#define HEADER_FILE_NAME PLATFORM" Implementation.h"
#include HEADER_FILE_NAME
Couldn''t he do something like:
#define HEADER_FILE_NAME PLATFORM "Implementation.h"
#include HEADER_FILE_NAME
我不觉得所以。但请尝试一下，如果你成功了，请告诉我们。
V
-
请删除资金来自通过邮件回复我的地址
I don''t think so. But do try it, and if you succeed, let us know.
V
--
Please remove capital As from my address when replying by mail
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