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#ifndef _ENDIAN_H #define _ENDIAN_H #include <features.h> #define __LITTLE_ENDIAN 1234 #define __BIG_ENDIAN 4321 #define __PDP_ENDIAN 3412 #if defined(__GNUC__) && defined(__BYTE_ORDER__) #define __BYTE_ORDER __BYTE_ORDER__ #else #include <bits/endian.h> #endif #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE) #define BIG_ENDIAN __BIG_ENDIAN #define LITTLE_ENDIAN __LITTLE_ENDIAN #define PDP_ENDIAN __PDP_ENDIAN #define BYTE_ORDER __BYTE_ORDER #include <stdint.h> static __inline uint16_t __bswap16(uint16_t __x) { return __x<<8 | __x>>8; } static __inline uint32_t __bswap32(uint32_t __x) { return __x>>24 | __x>>8&0xff00 | __x<<8&0xff0000 | __x<<24; } static __inline uint64_t __bswap64(uint64_t __x) { return __bswap32(__x)+0ULL<<32 | __bswap32(__x>>32); } #if __BYTE_ORDER == __LITTLE_ENDIAN #define htobe16(x) __bswap16(x) #define be16toh(x) __bswap16(x) #define betoh16(x) __bswap16(x) #define htobe32(x) __bswap32(x) #define be32toh(x) __bswap32(x) #define betoh32(x) __bswap32(x) #define htobe64(x) __bswap64(x) #define be64toh(x) __bswap64(x) #define betoh64(x) __bswap64(x) #define htole16(x) (uint16_t)(x) #define le16toh(x) (uint16_t)(x) #define letoh16(x) (uint16_t)(x) #define htole32(x) (uint32_t)(x) #define le32toh(x) (uint32_t)(x) #define letoh32(x) (uint32_t)(x) #define htole64(x) (uint64_t)(x) #define le64toh(x) (uint64_t)(x) #define letoh64(x) (uint64_t)(x) #else #define htobe16(x) (uint16_t)(x) #define be16toh(x) (uint16_t)(x) #define betoh16(x) (uint16_t)(x) #define htobe32(x) (uint32_t)(x) #define be32toh(x) (uint32_t)(x) #define betoh32(x) (uint32_t)(x) #define htobe64(x) (uint64_t)(x) #define be64toh(x) (uint64_t)(x) #define betoh64(x) (uint64_t)(x) #define htole16(x) __bswap16(x) #define le16toh(x) __bswap16(x) #define letoh16(x) __bswap16(x) #define htole32(x) __bswap32(x) #define le32toh(x) __bswap32(x) #define letoh32(x) __bswap32(x) #define htole64(x) __bswap64(x) #define le64toh(x) __bswap64(x) #define letoh64(x) __bswap64(x) #endif #endif #endif |