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/* zendian.h -- define BYTE_ORDER for endian tests
* For conditions of distribution and use, see copyright notice in zlib.h
*/
#ifndef ENDIAN_H_
#define ENDIAN_H_
/* First check whether the compiler knows the target __BYTE_ORDER__. */
#if defined(__BYTE_ORDER__)
# if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
# if !defined(LITTLE_ENDIAN)
# define LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__
# endif
# if !defined(BYTE_ORDER)
# define BYTE_ORDER LITTLE_ENDIAN
# endif
# elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
# if !defined(BIG_ENDIAN)
# define BIG_ENDIAN __ORDER_BIG_ENDIAN__
# endif
# if !defined(BYTE_ORDER)
# define BYTE_ORDER BIG_ENDIAN
# endif
# endif
#elif defined(__MINGW32__)
# include <sys/param.h>
#elif defined(_WIN32)
# define LITTLE_ENDIAN 1234
# define BIG_ENDIAN 4321
# if defined(ARCH_X86) || defined(ARCH_IA64) || defined(ARCH_ARM)
# define BYTE_ORDER LITTLE_ENDIAN
# else
# error Unknown endianness!
# endif
#elif defined(__linux__)
# include <endian.h>
#elif defined(__APPLE__)
# include <machine/endian.h>
#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__) || defined(__DragonFly__)
# include <sys/endian.h>
#elif defined(__sun) || defined(sun)
# include <sys/byteorder.h>
# if !defined(LITTLE_ENDIAN)
# define LITTLE_ENDIAN 4321
# endif
# if !defined(BIG_ENDIAN)
# define BIG_ENDIAN 1234
# endif
# if !defined(BYTE_ORDER)
# if defined(_BIG_ENDIAN)
# define BYTE_ORDER BIG_ENDIAN
# else
# define BYTE_ORDER LITTLE_ENDIAN
# endif
# endif
#else
# include <endian.h>
#endif
#if BYTE_ORDER == LITTLE_ENDIAN
# define Z_U16_TO_LE(x) (x)
# define Z_U32_TO_LE(x) (x)
# define Z_U64_TO_LE(x) (x)
# define Z_U16_FROM_LE(x) (x)
# define Z_U32_FROM_LE(x) (x)
# define Z_U64_FROM_LE(x) (x)
# define Z_U16_TO_BE(x) ZSWAP16(x)
# define Z_U32_TO_BE(x) ZSWAP32(x)
# define Z_U64_TO_BE(x) ZSWAP64(x)
# define Z_U16_FROM_BE(x) ZSWAP16(x)
# define Z_U32_FROM_BE(x) ZSWAP32(x)
# define Z_U64_FROM_BE(x) ZSWAP64(x)
#elif BYTE_ORDER == BIG_ENDIAN
# define Z_U16_TO_LE(x) ZSWAP16(x)
# define Z_U32_TO_LE(x) ZSWAP32(x)
# define Z_U64_TO_LE(x) ZSWAP64(x)
# define Z_U16_FROM_LE(x) ZSWAP16(x)
# define Z_U32_FROM_LE(x) ZSWAP32(x)
# define Z_U64_FROM_LE(x) ZSWAP64(x)
# define Z_U16_TO_BE(x) (x)
# define Z_U32_TO_BE(x) (x)
# define Z_U64_TO_BE(x) (x)
# define Z_U16_FROM_BE(x) (x)
# define Z_U32_FROM_BE(x) (x)
# define Z_U64_FROM_BE(x) (x)
#else
# error "Unknown byte order"
#endif
#endif
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