mkdir() linux/windows

vbx_wx · 03-30-2010, 09:22 AM

Code:

void Wsk::makeDir(string name)
{
       #ifdef LINUX
	mkdir(name.c_str() , S_IRWXU | S_IRWXG | S_IRWXO);
	#endif
	#ifdef WINDOWS
	mkdir(name.c_str());
	#endif
}

isnt this suppose to work both in linux and windows ? if i use ifdef linux,it doesnt work,but if i comment it,its working,why is that ?

troop · 03-30-2010, 09:38 AM

Code:

#ifdef WIN32
 #define WINDOWS
#elif WIN64
 #define WINDOWS
#endif
void Wsk::makeDir(string name)
{
#ifdef linux
	mkdir(name.c_str() , S_IRWXU | S_IRWXG | S_IRWXO);
#endif
#ifdef WINDOWS
	mkdir(name.c_str());
#endif
}

work for me

ForzaItalia2006 · 03-30-2010, 11:05 AM

Hey,

the difference between your version and the working version is how 'linux' is written. The C compiler (and C preprocessor) work in case-sensitive mode, though 'linux' is not the same as 'LINUX'. By the way, the gcc compiler (at least my version 4.4.3) defines the following macros if compiled on Linux platforms:

#define __linux 1
#define __linux__ 1
#define __gnu_linux__ 1
#define linux 1

Hope that makes clear why your code only works if you comment out the #ifdef LINUX ...

- Andi -