[Dev-C++] Directories

[PhrostByte <Phr...@so...>]

Okay, I'm new to directories in C - I just found out how to open/list
them basically.  I looked in the glibc manual (a lifesaver, that is!!)
and came across S_ISDIR() but that doesn't seem to work for me.

I'm trying to tell the difference between folder and file so I don't
crash by fopen()ing a folder.  Can somebody please help? Thanks in
advance