#ifndef __NOD_UTIL_HPP__
#define __NOD_UTIL_HPP__

namespace NOD
{

/* Type-sensitive byte swappers */
template <typename T>
static inline T bswap16(T val)
{
#if __GNUC__
    return __builtin_bswap16(val);
#elif _WIN32
    return _byteswap_ushort(val);
#else
    return (val = (val << 8) | ((val >> 8) & 0xFF));
#endif
}

template <typename T>
static inline T bswap32(T val)
{
#if __GNUC__
    return __builtin_bswap32(val);
#elif _WIN32
    return _byteswap_ulong(val);
#else
    val = (val & 0x0000FFFF) << 16 | (val & 0xFFFF0000) >> 16;
    val = (val & 0x00FF00FF) << 8 | (val & 0xFF00FF00) >> 8;
    return val;
#endif
}

template <typename T>
static inline T bswap64(T val)
{
#if __GNUC__
    return __builtin_bswap64(val);
#elif _WIN32
    return _byteswap_uint64(val);
#else
    return ((val & 0xFF00000000000000ULL) >> 56) |
           ((val & 0x00FF000000000000ULL) >> 40) |
           ((val & 0x0000FF0000000000ULL) >> 24) |
           ((val & 0x000000FF00000000ULL) >>  8) |
           ((val & 0x00000000FF000000ULL) <<  8) |
           ((val & 0x0000000000FF0000ULL) << 24) |
           ((val & 0x000000000000FF00ULL) << 40) |
           ((val & 0x00000000000000FFULL) << 56);
#endif
}


#if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
static inline int16_t SBig(int16_t val) {return bswap16(val);}
static inline uint16_t SBig(uint16_t val) {return bswap16(val);}
static inline int32_t SBig(int32_t val) {return bswap32(val);}
static inline uint32_t SBig(uint32_t val) {return bswap32(val);}
static inline int64_t SBig(int64_t val) {return bswap64(val);}
static inline uint64_t SBig(uint64_t val) {return bswap64(val);}

static inline int16_t SLittle(int16_t val) {return val;}
static inline uint16_t SLittle(uint16_t val) {return val;}
static inline int32_t SLittle(int32_t val) {return val;}
static inline uint32_t SLittle(uint32_t val) {return val;}
static inline int64_t SLittle(int64_t val) {return val;}
static inline uint64_t SLittle(uint64_t val) {return val;}
#else
static inline int16_t SLittle(int16_t val) {return bswap16(val);}
static inline uint16_t SLittle(uint16_t val) {return bswap16(val);}
static inline int32_t SLittle(int32_t val) {return bswap32(val);}
static inline uint32_t SLittle(uint32_t val) {return bswap32(val);}
static inline int64_t SLittle(int64_t val) {return bswap64(val);}
static inline uint64_t SLittle(uint64_t val) {return bswap64(val);}

static inline int16_t SBig(int16_t val) {return val;}
static inline uint16_t SBig(uint16_t val) {return val;}
static inline int32_t SBig(int32_t val) {return val;}
static inline uint32_t SBig(uint32_t val) {return val;}
static inline int64_t SBig(int64_t val) {return val;}
static inline uint64_t SBig(uint64_t val) {return val;}
#endif

}

#endif // __NOD_UTIL_HPP__