source: branches/libc-0.6/src/emx/include/machine/endian.h

/* machine/endian.h (emx+gcc) (freebsd 5.0 inspired) */

#ifndef _MACHINE_ENDIAN_H
#define _MACHINE_ENDIAN_H

#include <386/endian.h>


/** NOTE this is actually sys/endian.h! */

#ifndef _UINT16_T_DECLARED
typedef __uint16_t      uint16_t;
#define _UINT16_T_DECLARED
#endif

#ifndef _UINT32_T_DECLARED
typedef __uint32_t      uint32_t;
#define _UINT32_T_DECLARED
#endif

#ifndef _UINT64_T_DECLARED
typedef __uint64_t      uint64_t;
#define _UINT64_T_DECLARED
#endif

/*
 * General byte order swapping functions.
 */
#define bswap16(x)      __bswap16(x)
#define bswap32(x)      __bswap32(x)
#define bswap64(x)      __bswap64(x)

/*
 * Host to big endian, host to little endian, big endian to host, and little
 * endian to host byte order functions as detailed in byteorder(9).
 */
#if _BYTE_ORDER == _LITTLE_ENDIAN
#define htobe16(x)      bswap16((x))
#define htobe32(x)      bswap32((x))
#define htobe64(x)      bswap64((x))
#define htole16(x)      ((uint16_t)(x))
#define htole32(x)      ((uint32_t)(x))
#define htole64(x)      ((uint64_t)(x))

#define be16toh(x)      bswap16((x))
#define be32toh(x)      bswap32((x))
#define be64toh(x)      bswap64((x))
#define le16toh(x)      ((uint16_t)(x))
#define le32toh(x)      ((uint32_t)(x))
#define le64toh(x)      ((uint64_t)(x))
#else /* _BYTE_ORDER != _LITTLE_ENDIAN */
#define htobe16(x)      ((uint16_t)(x))
#define htobe32(x)      ((uint32_t)(x))
#define htobe64(x)      ((uint64_t)(x))
#define htole16(x)      bswap16((x))
#define htole32(x)      bswap32((x))
#define htole64(x)      bswap64((x))

#define be16toh(x)      ((uint16_t)(x))
#define be32toh(x)      ((uint32_t)(x))
#define be64toh(x)      ((uint64_t)(x))
#define le16toh(x)      bswap16((x))
#define le32toh(x)      bswap32((x))
#define le64toh(x)      bswap64((x))
#endif /* _BYTE_ORDER == _LITTLE_ENDIAN */

#endif /* not _MACHINE_ENDIAN_H */