@node FD_ZERO
@section @code{FD_ZERO}
@findex FD_ZERO

POSIX specification: @url{http://www.opengroup.org/susv3xsh/FD_ZERO.html}

Gnulib module: ---

Portability problems fixed by Gnulib:
@itemize
@end itemize

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