newlib/winsup/cygwin/include/endian.h

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/* endian.h
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Copyright 2005, 2010 Red Hat, Inc.
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This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#ifndef _ENDIAN_H_
#define _ENDIAN_H_
#include <sys/config.h>
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#ifndef __BIG_ENDIAN
#define __BIG_ENDIAN 4321
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#endif
#ifndef __LITTLE_ENDIAN
#define __LITTLE_ENDIAN 1234
#endif
#ifndef __BYTE_ORDER
# define __BYTE_ORDER __LITTLE_ENDIAN
#endif
/*#ifdef __USE_BSD*/
# define LITTLE_ENDIAN __LITTLE_ENDIAN
# define BIG_ENDIAN __BIG_ENDIAN
# define PDP_ENDIAN __PDP_ENDIAN
# define BYTE_ORDER __BYTE_ORDER
/*#endif*/
#if __BYTE_ORDER == __LITTLE_ENDIAN
# define __LONG_LONG_PAIR(HI, LO) LO, HI
#elif __BYTE_ORDER == __BIG_ENDIAN
# define __LONG_LONG_PAIR(HI, LO) HI, LO
#endif
#if /*defined __USE_BSD ||*/ ! defined _POSIX_SOURCE
#include <byteswap.h>
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define htobe16(x) bswap_16(x)
#define htobe32(x) bswap_32(x)
#define htobe64(x) bswap_64(x)
#define be16toh(x) bswap_16(x)
#define be32toh(x) bswap_32(x)
#define be64toh(x) bswap_64(x)
#define htole16(x) (x)
#define htole32(x) (x)
#define htole64(x) (x)
#define le16toh(x) (x)
#define le32toh(x) (x)
#define le64toh(x) (x)
#endif /*__BYTE_ORDER == __LITTLE_ENDIAN*/
#if __BYTE_ORDER == __BIG_ENDIAN
#define htobe16(x) (x)
#define htobe32(x) (x)
#define htobe64(x) (x)
#define be16toh(x) (x)
#define be32toh(x) (x)
#define be64toh(x) (x)
#define htole16(x) bswap_16(x)
#define htole32(x) bswap_32(x)
#define htole64(x) bswap_64(x)
#define le16toh(x) bswap_16(x)
#define le32toh(x) bswap_32(x)
#define le64toh(x) bswap_64(x)
#endif /*__BYTE_ORDER == __BIG_ENDIAN*/
#endif /*__USE_BSD || !_POSIX_SOURCE*/
#endif /*_ENDIAN_H_*/
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