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41bdb6e20c
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
36 lines
1.5 KiB
C
36 lines
1.5 KiB
C
/* Copyright (C) 1997, 1998, 2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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#ifndef _SYS_SELECT_H
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# error "Never use <bits/select.h> directly; include <sys/select.h> instead."
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#endif
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/* We don't use `memset' because this would require a prototype and
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the array isn't too big. */
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#define __FD_ZERO(s) \
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do { \
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unsigned int __i; \
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fd_set *__arr = (s); \
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for (__i = 0; __i < sizeof (fd_set) / sizeof (__fd_mask); ++__i) \
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__FDS_BITS (__arr)[__i] = 0; \
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} while (0)
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#define __FD_SET(d, s) (__FDS_BITS (s)[__FDELT(d)] |= __FDMASK(d))
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#define __FD_CLR(d, s) (__FDS_BITS (s)[__FDELT(d)] &= ~__FDMASK(d))
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#define __FD_ISSET(d, s) ((__FDS_BITS (s)[__FDELT(d)] & __FDMASK(d)) != 0)
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