what is difference between file descriptor and fildes [closed]

Question

What is fildes and in linux, what is the difference between file descriptor and fildes. For example, the below write deals with file descriptor

ssize_t write(int fd, const void *buf, size_t count);

Where as the below pwrite deals with fildes

ssize_t pwrite(int fildes, const void *buf, size_t nbyte, off_t offset); 

Answer 1

These are just parameter names. They both refer to file descriptor.

Read manual for those functions

man 2 write
man pwrite