freebsd-dev/tools/build/endian.h

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/*
* $FreeBSD$
*/
#include <sys/types.h>
#include <machine/endian.h>
#define bswap16(x) (uint16_t) \
((x >> 8) | (x << 8))
#define bswap32(x) (uint32_t) \
((x >> 24) | ((x >> 8) & 0xff00) | ((x << 8) & 0xff0000) | (x << 24))
#define bswap64(x) (uint64_t) \
((x >> 56) | ((x >> 40) & 0xff00) | ((x >> 24) & 0xff0000) | \
((x >> 8) & 0xff000000) | ((x << 8) & ((uint64_t)0xff << 32)) | \
((x << 24) & ((uint64_t)0xff << 40)) | \
((x << 40) & ((uint64_t)0xff << 48)) | ((x << 56)))
/*
* 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((uint16_t)(x))
#define htobe32(x) bswap32((uint32_t)(x))
#define htobe64(x) bswap64((uint64_t)(x))
#define htole16(x) ((uint16_t)(x))
#define htole32(x) ((uint32_t)(x))
#define htole64(x) ((uint64_t)(x))
#define be16toh(x) bswap16((uint16_t)(x))
#define be32toh(x) bswap32((uint32_t)(x))
#define be64toh(x) bswap64((uint64_t)(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((uint16_t)(x))
#define htole32(x) bswap32((uint32_t)(x))
#define htole64(x) bswap64((uint64_t)(x))
#define be16toh(x) ((uint16_t)(x))
#define be32toh(x) ((uint32_t)(x))
#define be64toh(x) ((uint64_t)(x))
#define le16toh(x) bswap16((uint16_t)(x))
#define le32toh(x) bswap32((uint32_t)(x))
#define le64toh(x) bswap64((uint64_t)(x))
#endif /* _BYTE_ORDER == _LITTLE_ENDIAN */