What’s the difference between a file descriptor and file pointer?
A file descriptor is a low-level integer “handle” used to identify an opened file (or socket, or whatever) at the kernel level, in Linux and other Unix-like systems. You pass “naked” file descriptors to actual Unix calls, such as read(), write() and so on. A FILE pointer is a C standard library-level construct, used to represent a file. The FILE wraps the … Read more