How do I create a folder in C?

[nestle]

I know how to create a file, by using F=fopen("name of file with extension","w") ; , where F is a pointer to the file. But how do I create a folder? Do folders have some kind of special format? Please someone tell me if it's possible to create a folder in C, and if yes then how?

[weaknessforcats]

Directories have nothing to do with C. A directory is just a file with a special format.

You use call provided by your OS provider to create a directory. For Windows, it's a call to CreateFile.