template<integral T>
inline T ByteSwapToBE(T unit) {
    static_assert(sizeof(T) == 2 || sizeof(T) == 4 || sizeof(T) == 8);

    if constexpr(__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__){
        if constexpr (sizeof(T) == 2)
            return __builtin_bswap16(unit);
        else if constexpr (sizeof(T) == 4)
            return __builtin_bswap32(unit);
        else if constexpr (sizeof(T) == 8)
            return __builtin_bswap64(unit);
    }
    return unit;
}