NAME

FD_CLR - macros for synchronous I/O multiplexing

 SYNOPSIS

#include <sys/time.h>

FD_CLR(int fd, fd_set *fdset);
FD_ISSET(int fd, fd_set *fdset);
FD_SET(int fd, fd_set *fdset);
FD_ZERO(fd_set *fdset);

 DESCRIPTION

Refer to select().

 SEE ALSO

<sys/time.h>.