ref: f7e5af47f117be34669dc1e532d525dcbbff73f0
dir: /jasper/jas_compiler.h/
/* __START_OF_JASPER_LICENSE__
*
* JasPer License Version 2.0
*
* Copyright (c) 2001-2006 Michael David Adams
* Copyright (c) 1999-2000 Image Power, Inc.
* Copyright (c) 1999-2000 The University of British Columbia
*
* All rights reserved.
*
* Permission is hereby granted, free of charge, to any person (the
* "User") obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, and/or sell copies of the Software, and to permit
* persons to whom the Software is furnished to do so, subject to the
* following conditions:
*
* 1. The above copyright notices and this permission notice (which
* includes the disclaimer below) shall be included in all copies or
* substantial portions of the Software.
*
* 2. The name of a copyright holder shall not be used to endorse or
* promote products derived from the Software without specific prior
* written permission.
*
* THIS DISCLAIMER OF WARRANTY CONSTITUTES AN ESSENTIAL PART OF THIS
* LICENSE. NO USE OF THE SOFTWARE IS AUTHORIZED HEREUNDER EXCEPT UNDER
* THIS DISCLAIMER. THE SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS
* "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
* BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO
* EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL
* INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. NO ASSURANCES ARE
* PROVIDED BY THE COPYRIGHT HOLDERS THAT THE SOFTWARE DOES NOT INFRINGE
* THE PATENT OR OTHER INTELLECTUAL PROPERTY RIGHTS OF ANY OTHER ENTITY.
* EACH COPYRIGHT HOLDER DISCLAIMS ANY LIABILITY TO THE USER FOR CLAIMS
* BROUGHT BY ANY OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL
* PROPERTY RIGHTS OR OTHERWISE. AS A CONDITION TO EXERCISING THE RIGHTS
* GRANTED HEREUNDER, EACH USER HEREBY ASSUMES SOLE RESPONSIBILITY TO SECURE
* ANY OTHER INTELLECTUAL PROPERTY RIGHTS NEEDED, IF ANY. THE SOFTWARE
* IS NOT FAULT-TOLERANT AND IS NOT INTENDED FOR USE IN MISSION-CRITICAL
* SYSTEMS, SUCH AS THOSE USED IN THE OPERATION OF NUCLEAR FACILITIES,
* AIRCRAFT NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL
* SYSTEMS, DIRECT LIFE SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH
* THE FAILURE OF THE SOFTWARE OR SYSTEM COULD LEAD DIRECTLY TO DEATH,
* PERSONAL INJURY, OR SEVERE PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH
* RISK ACTIVITIES"). THE COPYRIGHT HOLDERS SPECIFICALLY DISCLAIM ANY
* EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR HIGH RISK ACTIVITIES.
*
* __END_OF_JASPER_LICENSE__
*/
/*!
* @file jas_compiler.h
* @brief Compiler-related macros.
*/
#ifndef JAS_COMPILER_H
#define JAS_COMPILER_H
/* The configuration header file should be included first. */
#include <jasper/jas_config.h>
#ifdef _MSC_VER
# ifndef __cplusplus
# undef inline
# define inline __inline
# endif
#endif
#if defined(__GNUC__)
# define JAS_DEPRECATED __attribute__((deprecated))
#else
# define JAS_DEPRECATED
#endif
#if defined(__GNUC__)
# define JAS_ATTRIBUTE_CONST __attribute__((const))
#else
# define JAS_ATTRIBUTE_CONST
#endif
#if defined(__GNUC__)
# define JAS_ATTRIBUTE_PURE __attribute__((pure))
#else
# define JAS_ATTRIBUTE_PURE
#endif
#if defined(__GNUC__)
# define JAS_FORCE_INLINE inline __attribute__((always_inline))
#else
# define JAS_FORCE_INLINE inline
#endif
#if defined(__GNUC__)
# if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5)
# define JAS_UNREACHABLE() __builtin_unreachable()
# else
# define JAS_UNREACHABLE()
# endif
#elif defined(__clang__)
# define JAS_UNREACHABLE() __builtin_unreachable()
#elif defined(_MSC_VER)
# define JAS_UNREACHABLE() __assume(0)
#else
# define JAS_UNREACHABLE()
#endif
#if defined(__GNUC__)
# define JAS_LIKELY(x) __builtin_expect (!!(x), 1)
#else
# define JAS_LIKELY(x) (x)
#endif
#if defined(__GNUC__)
# define JAS_UNLIKELY(x) __builtin_expect (!!(x), 0)
#else
# define JAS_UNLIKELY(x) (x)
#endif
#if defined(__GNUC__) && __GNUC__ >= 6
# define JAS_ATTRIBUTE_DISABLE_UBSAN \
__attribute__((no_sanitize_undefined))
#elif defined(__clang__)
# define JAS_ATTRIBUTE_DISABLE_UBSAN \
__attribute__((no_sanitize("undefined")))
#else
# define JAS_ATTRIBUTE_DISABLE_UBSAN
#endif
#ifdef __has_builtin
#define jas_has_builtin(x) __has_builtin(x)
#else
#define jas_has_builtin(x) 0
#endif
/*!
@brief
Indicate that a variable may be unused (in order to avoid a compiler warning).
*/
#define JAS_UNUSED(x) USED(x)
#endif