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60 lines
1.7 KiB
60 lines
1.7 KiB
/* 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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