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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Common header
* Copyright (c) 2006-2019 Roy Marples <roy@marples.name>
* All rights reserved
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef COMMON_H
#define COMMON_H
#if __GNUC__ > 2 || defined(__INTEL_COMPILER)
# ifndef __packed
# define __packed __attribute__((__packed__))
# endif
# ifndef __unused
# define __unused __attribute__((__unused__))
# endif
#else
# ifndef __packed
# define __packed
# endif
# ifndef __unused
# define __unused
# endif
#endif
/* Needed for rbtree(3) compat */
#ifndef __RCSID
#define __RCSID(a)
#endif
#ifndef __predict_false
# if __GNUC__ > 2
# define __predict_true(exp) __builtin_expect((exp) != 0, 1)
# define __predict_false(exp) __builtin_expect((exp) != 0, 0)
#else
# define __predict_true(exp) (exp)
# define __predict_false(exp) (exp)
# endif
#endif
#ifndef __BEGIN_DECLS
# if defined(__cplusplus)
# define __BEGIN_DECLS extern "C" {
# define __END_DECLS };
# else /* __BEGIN_DECLS */
# define __BEGIN_DECLS
# define __END_DECLS
# endif /* __BEGIN_DECLS */
#endif /* __BEGIN_DECLS */
#endif
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