@node FD_CLR
@subsection @code{FD_CLR}
@findex FD_CLR

POSIX specification:@* @url{https://pubs.opengroup.org/onlinepubs/9799919799/functions/FD_CLR.html}

Gnulib module: ---

Portability problems fixed by Gnulib:
@itemize
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@end itemize
