How to get the file separator symbol in standard C/C++ : / or \?

Question

I would like to write a function :

inline char separator()
{
    /* SOMETHING */
}

that returns the file separator of the system in standar

Answer 1

that can be something like this

#if defined(WIN32) || defined(_WIN32) 
#define PATH_SEPARATOR "\\" 
#else 
#define PATH_SEPARATOR "/" 
#endif