Cross-platform method of creating a folder/directory?

Question

Is there a way to create a folder/directory \"in code\" using C, that is cross-platform? Or will I have to use the preprocessor to state which method to use?

Answer 1

You'll need a #define to do this.

To keep your code looking clean, you'll want use one that will define the Linux function to translate to the equivalent Windows function when compiling for Windows.

At the top of your source file, you'll have this in a Windows specific section:

#include 

#define mkdir(dir, mode) _mkdir(dir)

Then later on you can call the function like this:

mkdir("/tmp/mydir", 0755);

Here are some others that might be useful:

#define open(name, ...) _open(name, __VA_ARGS__)
#define read(fd, buf, count) _read(fd, buf, count)
#define close(fd) _close(fd)
#define write(fd, buf, count) _write(fd, buf, count)
#define dup2(fd1, fd2) _dup2(fd1, fd2)
#define unlink(file) _unlink(file)
#define rmdir(dir) _rmdir(dir)
#define getpid() _getpid()
#define usleep(t) Sleep((t)/1000)
#define sleep(t) Sleep((t)*1000)