尽管有if语句，Visual Studio仍试图包括Linux标头 [英] Visual Studio trying to include linux headers despite if statement

问题描述

我正在尝试创建一个健壮的头文件，该文件可以在Windows和Linux上进行编译，而无需进行更改.为此，我的include中有一个if语句，看起来像

I am attempting to create a robust header file that will compile on both windows and linux without need for changes. To this end I have an if statement in my includes that looks like

#if (!defined(__WINDOWS__))
#include <sys/time.h>
#include <unistd.h>
#include <pthread.h>
#endif

尽管if语句导致出现类似错误，但我在Visual Studio仍尝试包含这些标头的过程中遇到了问题

I am having problems with visual studio still attempting to include these headers despite the if statement resulting in errors like

error C1083: Cannot open include file: 'sys/time.h'

有没有一种方法可以解决此问题，而无需从标头中删除所有linux代码块?

Is there a way to resolve this issue without removing all the linux blocks of code from the header?

推荐答案

__ WINDOWS __ 由 windows.h 定义.因此，您具有圆度.改用它:

__WINDOWS__ is defined by windows.h. So you have a circularity. Use this instead:

#if defined(_WIN32)
#   if defined(_WIN64)
        /*64 bit windows*/
#   else
        /*32 bit windows*/
#   endif
#endif

是的，_WIN32 是在64位窗口上定义的.我不骗你.

Yes, _WIN32 is defined on 64 bit windows. I kid you not.

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