//# include <iostream>
# include <string>
# include <map>
# include <cerrno> // errno
# include <cstdio> // perror


// --------------------------------------------
// Verifier si les fonctions sont dispos dans des headers C++


# include <fcntl.h> // fcntl

// htonl, htons, ntohl, ntohs, inet_addr
# include <arpa/inet.h>

// socket, accept, listen, send, recv, bind, connect, setsockopt, getsockname
# include <sys/socket.h>

# include <poll.h> // poll
		// OR
# include <sys/select.h> // select
		// OR
# include <sys/epoll.h> // epoll