// "License": Public Domain
// I, Mathias PanzenbÃ¶ck, place this file hereby into the public domain. Use it at your own risk for whatever you like.

#ifndef PORTABLE_ENDIAN_H__
#define PORTABLE_ENDIAN_H__

#if (defined(_WIN16) || defined(_WIN32) || defined(_WIN64)) && !defined(__WINDOWS__)

# define __WINDOWS__

#endif

#if defined(__linux__) || defined(__CYGWIN__)

# define __USE_BSD
# include <endian.h>

#elif defined(__APPLE__)

# include <libkern/OSByteOrder.h>

# define htobe16(x) OSSwapHostToBigInt16(x)
# define htole16(x) OSSwapHostToLittleInt16(x)
# define be16toh(x) OSSwapBigToHostInt16(x)
# define le16toh(x) OSSwapLittleToHostInt16(x)
 
# define htobe32(x) OSSwapHostToBigInt32(x)
# define htole32(x) OSSwapHostToLittleInt32(x)
# define be32toh(x) OSSwapBigToHostInt32(x)
# define le32toh(x) OSSwapLittleToHostInt32(x)
 
# define htobe64(x) OSSwapHostToBigInt64(x)
# define htole64(x) OSSwapHostToLittleInt64(x)
# define be64toh(x) OSSwapBigToHostInt64(x)
# define le64toh(x) OSSwapLittleToHostInt64(x)

# define __BYTE_ORDER    BYTE_ORDER
# define __BIG_ENDIAN    BIG_ENDIAN
# define __LITTLE_ENDIAN LITTLE_ENDIAN
# define __PDP_ENDIAN    PDP_ENDIAN

#elif defined(__OpenBSD__)

# include <sys/endian.h>

#elif defined(__NetBSD__) || defined(__FreeBSD__) || defined(__DragonFly__)

# include <sys/endian.h>

# define be16toh(x) betoh16(x)
# define le16toh(x) letoh16(x)

# define be32toh(x) betoh32(x)
# define le32toh(x) letoh32(x)

# define be64toh(x) betoh64(x)
# define le64toh(x) letoh64(x)

#elif defined(__WINDOWS__)

# include <winsock2.h>
# include <sys/param.h>

# if BYTE_ORDER == LITTLE_ENDIAN

#   define htobe16(x) htons(x)
#   define htole16(x) (x)
#   define be16toh(x) ntohs(x)
#   define le16toh(x) (x)
 
#   define htobe32(x) htonl(x)
#   define htole32(x) (x)
#   define be32toh(x) ntohl(x)
#   define le32toh(x) (x)
 
#   define htobe64(x) htonll(x)
#   define htole64(x) (x)
#   define be64toh(x) ntohll(x)
#   define le64toh(x) (x)

# elif BYTE_ORDER == BIG_ENDIAN

    /* that would be xbox 360 */
#   define htobe16(x) (x)
#   define htole16(x) __builtin_bswap16(x)
#   define be16toh(x) (x)
#   define le16toh(x) __builtin_bswap16(x)
 
#   define htobe32(x) (x)
#   define htole32(x) __builtin_bswap32(x)
#   define be32toh(x) (x)
#   define le32toh(x) __builtin_bswap32(x)
 
#   define htobe64(x) (x)
#   define htole64(x) __builtin_bswap64(x)
#   define be64toh(x) (x)
#   define le64toh(x) __builtin_bswap64(x)

# else

#   error byte order not supported

# endif

# define __BYTE_ORDER    BYTE_ORDER
# define __BIG_ENDIAN    BIG_ENDIAN
# define __LITTLE_ENDIAN LITTLE_ENDIAN
# define __PDP_ENDIAN    PDP_ENDIAN

#else

# error platform not supported

#endif

#endif
