| // "License": Public Domain |
| // I, Mathias Panzenböck, place this file hereby into the public domain. Use it at your own risk for whatever you like. |
| // In case there are jurisdictions that don't support putting things in the public domain you can also consider it to |
| // be "dual licensed" under the BSD, MIT and Apache licenses, if you want to. This code is trivial anyway. Consider it |
| // an example on how to get the endian conversion functions on different platforms. |
| |
| #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__) |
| |
| # 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 |
