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/*
* Common macro definitions
*
* ICRAR - International Centre for Radio Astronomy Research
* (c) UWA - The University of Western Australia, 2014
* Copyright by UWA (in the framework of the ICRAR)
* All rights reserved
*
* This 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.
*
* This 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 this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*/
#ifndef _COMMON_H_
#define _COMMON_H_
#if defined(__x86_64__) || defined(_M_X64) || defined(i386) || defined(__i386__) || defined(__i386) || defined(_M_IX86)
# define IS_INTEL
#elif defined(__aarch64__) || defined(_M_ARM64)
# define IS_ARM
#endif
#if defined(IS_INTEL) || (defined(IS_ARM) && (defined(__linux__) || defined(linux)))
# define CRC32C_CAN_PROBE_HW
#endif
/* inline support (it's not a keyword in MSVC for C code) */
#if defined(_MSC_VER)
# define CRC32C_INLINE __inline
#else
# define CRC32C_INLINE inline
#endif
/* switch case fallthrough annotation support */
#if defined(__STDC_VERSION__) && defined(__has_c_attribute)
# if __has_c_attribute(fallthrough) && __STDC_VERSION__ >= __has_c_attribute(fallthrough)
# define CRC32C_FALLTHROUGH [[fallthrough]]
# endif
#endif
#if !defined(CRC32C_FALLTHROUGH) && defined(__has_attribute)
# if __has_attribute(__fallthrough__)
# define CRC32C_FALLTHROUGH __attribute__((__fallthrough__))
# endif
#endif
#if !defined(CRC32C_FALLTHROUGH)
# define CRC32C_FALLTHROUGH (void)0
#endif
/* 32/64 bit detection */
#if defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) ||\
(defined(_MSC_VER) && defined(_M_AMD64))
# define CRC32C_IS_64_BITS
#else
# undef CRC32C_IS_64_BITS
#endif
/* uint64_t / uint32_t / uint16_t definitions */
#if !defined(_MSC_VER) || (MSC_VER >= 1800)
# include <stdint.h>
#else
# include <limits.h>
typedef unsigned __int64 uint64_t;
# if ULONG_MAX == (0xffffffffUL)
typedef unsigned long uint32_t;
# elif UINT_MAX == (0xffffffffUL)
typedef unsigned int uint32_t;
# else
# error "Unsupported platform"
# endif
# if UINT_MAX == (0xffffUL)
typedef unsigned int uint16_t;
# elif USHRT_MAX == (0xffffUL)
typedef unsigned short uint16_t;
# else
# error "Unsupported platform"
# endif
#endif
/* size_t definition */
#include <stdlib.h>
/* crc32c function signature */
typedef uint32_t (* crc_function)(uint32_t crc, unsigned const char *data, unsigned long length);
/* Are we big endian? */
extern int is_big_endian;
#endif // _COMMON_H_