mirror of
https://github.com/opencv/opencv.git
synced 2024-12-26 18:58:16 +08:00
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
|
/* 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(_M_IX86) || defined(_M_AMD64) || defined(_M_IA64) || defined (_M_ARM) || defined (_M_ARM64) || defined (_M_ARM64EC)
|
||
|
|
# 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
|
||
|
|
|
||
|
|
#endif
|