/* Copyright (C) 1997-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,

   but WITHOUT ANY WARRANTY; without even the implied warranty of

   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#ifndef _SYS_SELECT_H

# error "Never use <bits/select.h> directly; include <sys/select.h> instead."

#endif

/* We don't use `memset' because this would require a prototype and

   the array isn't too big.  */

#define __FD_ZERO(s) \

  do {									      \

    unsigned int __i;							      \

    fd_set *__arr = (s);						      \

    for (__i = 0; __i < sizeof (fd_set) / sizeof (__fd_mask); ++__i)	      \

      __FDS_BITS (__arr)[__i] = 0;					      \

  } while (0)

#define __FD_SET(d, s) \

  ((void) (__FDS_BITS (s)[__FD_ELT(d)] |= __FD_MASK(d)))

#define __FD_CLR(d, s) \

  ((void) (__FDS_BITS (s)[__FD_ELT(d)] &= ~__FD_MASK(d)))

#define __FD_ISSET(d, s) \

  ((__FDS_BITS (s)[__FD_ELT (d)] & __FD_MASK (d)) != 0)