client /server

[BDD]

Hi top coders I was wondering if anyone can help me locating the header file in which is contained read(int, char*, int) and write(int, char*, int).
I included
#include <fcntl.h> but it's still not working.
I will be thankful.

[Yanson]

These are the only ones i know of
http://www.cplusplus.com/reference/istream/istream/read/?kw=read
http://www.cplusplus.com/reference/ostream/ostream/write/?kw=write