[PATCH] libc/sysdeps/linux/common/bits/wchar.h: resync with glibc, fix build issue...
[uclibc-ng.git] / libc / sysdeps / linux / common / bits / select.h
blob6a61883538a479da47944a1fbf8211c0442c54fc
1 /* Copyright (C) 1997, 1998, 2001 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
18 #ifndef _SYS_SELECT_H
19 # error "Never use <bits/select.h> directly; include <sys/select.h> instead."
20 #endif
23 /* We don't use `memset' because this would require a prototype and
24 the array isn't too big. */
25 #define __FD_ZERO(s) \
26 do { \
27 unsigned int __i; \
28 fd_set *__arr = (s); \
29 for (__i = 0; __i < sizeof (fd_set) / sizeof (__fd_mask); ++__i) \
30 __FDS_BITS (__arr)[__i] = 0; \
31 } while (0)
32 #define __FD_SET(d, s) (__FDS_BITS (s)[__FDELT(d)] |= __FDMASK(d))
33 #define __FD_CLR(d, s) (__FDS_BITS (s)[__FDELT(d)] &= ~__FDMASK(d))
34 #define __FD_ISSET(d, s) ((__FDS_BITS (s)[__FDELT(d)] & __FDMASK(d)) != 0)