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61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
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/* zendian.h -- define BYTE_ORDER for endian tests
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* For conditions of distribution and use, see copyright notice in zlib.h
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*/
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#ifndef ENDIAN_H_
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#define ENDIAN_H_
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/* First check whether the compiler knows the target __BYTE_ORDER__. */
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#if defined(__BYTE_ORDER__)
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# if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
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# if !defined(LITTLE_ENDIAN)
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# define LITTLE_ENDIAN __ORDER_LITTLE_ENDIAN__
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# endif
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# if !defined(BYTE_ORDER)
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# define BYTE_ORDER LITTLE_ENDIAN
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# endif
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# elif __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
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# if !defined(BIG_ENDIAN)
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# define BIG_ENDIAN __ORDER_BIG_ENDIAN__
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# endif
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# if !defined(BYTE_ORDER)
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# define BYTE_ORDER BIG_ENDIAN
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# endif
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# endif
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#elif defined(__MINGW32__)
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# include <sys/param.h>
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#elif defined(_WIN32)
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# define LITTLE_ENDIAN 1234
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# define BIG_ENDIAN 4321
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# if defined(_M_IX86) || defined(_M_AMD64) || defined(_M_IA64) || defined (_M_ARM) || defined (_M_ARM64) || defined (_M_ARM64EC)
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# define BYTE_ORDER LITTLE_ENDIAN
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# else
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# error Unknown endianness!
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# endif
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#elif defined(__linux__)
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# include <endian.h>
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#elif defined(__APPLE__)
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# include <machine/endian.h>
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#elif defined(__FreeBSD__) || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__bsdi__) || defined(__DragonFly__)
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# include <sys/endian.h>
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#elif defined(__sun) || defined(sun)
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# include <sys/byteorder.h>
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# if !defined(LITTLE_ENDIAN)
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# define LITTLE_ENDIAN 4321
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# endif
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# if !defined(BIG_ENDIAN)
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# define BIG_ENDIAN 1234
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# endif
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# if !defined(BYTE_ORDER)
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# if defined(_BIG_ENDIAN)
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# define BYTE_ORDER BIG_ENDIAN
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# else
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# define BYTE_ORDER LITTLE_ENDIAN
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# endif
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# endif
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#else
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# include <endian.h>
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#endif
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#endif
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