/// <summary>
        /// ArrayとMap以外のタイプの値を得る
        /// </summary>
        /// <returns></returns>
        public T GetValue <T>()
        {
            var formatType = Format;

            switch (formatType)
            {
            case MsgPackType.NIL: return(GenericCast <object, T> .Null());

            case MsgPackType.TRUE: return(GenericCast <bool, T> .Const(true)());

            case MsgPackType.FALSE: return(GenericCast <bool, T> .Const(false)());

            case MsgPackType.POSITIVE_FIXNUM: return(GenericCast <int, T> .Const(0)());

            case MsgPackType.POSITIVE_FIXNUM_0x01: return(GenericCast <int, T> .Const(1)());

            case MsgPackType.POSITIVE_FIXNUM_0x02: return(GenericCast <int, T> .Const(2)());

            case MsgPackType.POSITIVE_FIXNUM_0x03: return(GenericCast <int, T> .Const(3)());

            case MsgPackType.POSITIVE_FIXNUM_0x04: return(GenericCast <int, T> .Const(4)());

            case MsgPackType.POSITIVE_FIXNUM_0x05: return(GenericCast <int, T> .Const(5)());

            case MsgPackType.POSITIVE_FIXNUM_0x06: return(GenericCast <int, T> .Const(6)());

            case MsgPackType.POSITIVE_FIXNUM_0x07: return(GenericCast <int, T> .Const(7)());

            case MsgPackType.POSITIVE_FIXNUM_0x08: return(GenericCast <int, T> .Const(8)());

            case MsgPackType.POSITIVE_FIXNUM_0x09: return(GenericCast <int, T> .Const(9)());

            case MsgPackType.POSITIVE_FIXNUM_0x0A: return(GenericCast <int, T> .Const(10)());

            case MsgPackType.POSITIVE_FIXNUM_0x0B: return(GenericCast <int, T> .Const(11)());

            case MsgPackType.POSITIVE_FIXNUM_0x0C: return(GenericCast <int, T> .Const(12)());

            case MsgPackType.POSITIVE_FIXNUM_0x0D: return(GenericCast <int, T> .Const(13)());

            case MsgPackType.POSITIVE_FIXNUM_0x0E: return(GenericCast <int, T> .Const(14)());

            case MsgPackType.POSITIVE_FIXNUM_0x0F: return(GenericCast <int, T> .Const(15)());

            case MsgPackType.POSITIVE_FIXNUM_0x10: return(GenericCast <int, T> .Const(16)());

            case MsgPackType.POSITIVE_FIXNUM_0x11: return(GenericCast <int, T> .Const(17)());

            case MsgPackType.POSITIVE_FIXNUM_0x12: return(GenericCast <int, T> .Const(18)());

            case MsgPackType.POSITIVE_FIXNUM_0x13: return(GenericCast <int, T> .Const(19)());

            case MsgPackType.POSITIVE_FIXNUM_0x14: return(GenericCast <int, T> .Const(20)());

            case MsgPackType.POSITIVE_FIXNUM_0x15: return(GenericCast <int, T> .Const(21)());

            case MsgPackType.POSITIVE_FIXNUM_0x16: return(GenericCast <int, T> .Const(22)());

            case MsgPackType.POSITIVE_FIXNUM_0x17: return(GenericCast <int, T> .Const(23)());

            case MsgPackType.POSITIVE_FIXNUM_0x18: return(GenericCast <int, T> .Const(24)());

            case MsgPackType.POSITIVE_FIXNUM_0x19: return(GenericCast <int, T> .Const(25)());

            case MsgPackType.POSITIVE_FIXNUM_0x1A: return(GenericCast <int, T> .Const(26)());

            case MsgPackType.POSITIVE_FIXNUM_0x1B: return(GenericCast <int, T> .Const(27)());

            case MsgPackType.POSITIVE_FIXNUM_0x1C: return(GenericCast <int, T> .Const(28)());

            case MsgPackType.POSITIVE_FIXNUM_0x1D: return(GenericCast <int, T> .Const(29)());

            case MsgPackType.POSITIVE_FIXNUM_0x1E: return(GenericCast <int, T> .Const(30)());

            case MsgPackType.POSITIVE_FIXNUM_0x1F: return(GenericCast <int, T> .Const(31)());

            case MsgPackType.POSITIVE_FIXNUM_0x20: return(GenericCast <int, T> .Const(32)());

            case MsgPackType.POSITIVE_FIXNUM_0x21: return(GenericCast <int, T> .Const(33)());

            case MsgPackType.POSITIVE_FIXNUM_0x22: return(GenericCast <int, T> .Const(34)());

            case MsgPackType.POSITIVE_FIXNUM_0x23: return(GenericCast <int, T> .Const(35)());

            case MsgPackType.POSITIVE_FIXNUM_0x24: return(GenericCast <int, T> .Const(36)());

            case MsgPackType.POSITIVE_FIXNUM_0x25: return(GenericCast <int, T> .Const(37)());

            case MsgPackType.POSITIVE_FIXNUM_0x26: return(GenericCast <int, T> .Const(38)());

            case MsgPackType.POSITIVE_FIXNUM_0x27: return(GenericCast <int, T> .Const(39)());

            case MsgPackType.POSITIVE_FIXNUM_0x28: return(GenericCast <int, T> .Const(40)());

            case MsgPackType.POSITIVE_FIXNUM_0x29: return(GenericCast <int, T> .Const(41)());

            case MsgPackType.POSITIVE_FIXNUM_0x2A: return(GenericCast <int, T> .Const(42)());

            case MsgPackType.POSITIVE_FIXNUM_0x2B: return(GenericCast <int, T> .Const(43)());

            case MsgPackType.POSITIVE_FIXNUM_0x2C: return(GenericCast <int, T> .Const(44)());

            case MsgPackType.POSITIVE_FIXNUM_0x2D: return(GenericCast <int, T> .Const(45)());

            case MsgPackType.POSITIVE_FIXNUM_0x2E: return(GenericCast <int, T> .Const(46)());

            case MsgPackType.POSITIVE_FIXNUM_0x2F: return(GenericCast <int, T> .Const(47)());

            case MsgPackType.POSITIVE_FIXNUM_0x30: return(GenericCast <int, T> .Const(48)());

            case MsgPackType.POSITIVE_FIXNUM_0x31: return(GenericCast <int, T> .Const(49)());

            case MsgPackType.POSITIVE_FIXNUM_0x32: return(GenericCast <int, T> .Const(50)());

            case MsgPackType.POSITIVE_FIXNUM_0x33: return(GenericCast <int, T> .Const(51)());

            case MsgPackType.POSITIVE_FIXNUM_0x34: return(GenericCast <int, T> .Const(52)());

            case MsgPackType.POSITIVE_FIXNUM_0x35: return(GenericCast <int, T> .Const(53)());

            case MsgPackType.POSITIVE_FIXNUM_0x36: return(GenericCast <int, T> .Const(54)());

            case MsgPackType.POSITIVE_FIXNUM_0x37: return(GenericCast <int, T> .Const(55)());

            case MsgPackType.POSITIVE_FIXNUM_0x38: return(GenericCast <int, T> .Const(56)());

            case MsgPackType.POSITIVE_FIXNUM_0x39: return(GenericCast <int, T> .Const(57)());

            case MsgPackType.POSITIVE_FIXNUM_0x3A: return(GenericCast <int, T> .Const(58)());

            case MsgPackType.POSITIVE_FIXNUM_0x3B: return(GenericCast <int, T> .Const(59)());

            case MsgPackType.POSITIVE_FIXNUM_0x3C: return(GenericCast <int, T> .Const(60)());

            case MsgPackType.POSITIVE_FIXNUM_0x3D: return(GenericCast <int, T> .Const(61)());

            case MsgPackType.POSITIVE_FIXNUM_0x3E: return(GenericCast <int, T> .Const(62)());

            case MsgPackType.POSITIVE_FIXNUM_0x3F: return(GenericCast <int, T> .Const(63)());

            case MsgPackType.POSITIVE_FIXNUM_0x40: return(GenericCast <int, T> .Const(64)());

            case MsgPackType.POSITIVE_FIXNUM_0x41: return(GenericCast <int, T> .Const(65)());

            case MsgPackType.POSITIVE_FIXNUM_0x42: return(GenericCast <int, T> .Const(66)());

            case MsgPackType.POSITIVE_FIXNUM_0x43: return(GenericCast <int, T> .Const(67)());

            case MsgPackType.POSITIVE_FIXNUM_0x44: return(GenericCast <int, T> .Const(68)());

            case MsgPackType.POSITIVE_FIXNUM_0x45: return(GenericCast <int, T> .Const(69)());

            case MsgPackType.POSITIVE_FIXNUM_0x46: return(GenericCast <int, T> .Const(70)());

            case MsgPackType.POSITIVE_FIXNUM_0x47: return(GenericCast <int, T> .Const(71)());

            case MsgPackType.POSITIVE_FIXNUM_0x48: return(GenericCast <int, T> .Const(72)());

            case MsgPackType.POSITIVE_FIXNUM_0x49: return(GenericCast <int, T> .Const(73)());

            case MsgPackType.POSITIVE_FIXNUM_0x4A: return(GenericCast <int, T> .Const(74)());

            case MsgPackType.POSITIVE_FIXNUM_0x4B: return(GenericCast <int, T> .Const(75)());

            case MsgPackType.POSITIVE_FIXNUM_0x4C: return(GenericCast <int, T> .Const(76)());

            case MsgPackType.POSITIVE_FIXNUM_0x4D: return(GenericCast <int, T> .Const(77)());

            case MsgPackType.POSITIVE_FIXNUM_0x4E: return(GenericCast <int, T> .Const(78)());

            case MsgPackType.POSITIVE_FIXNUM_0x4F: return(GenericCast <int, T> .Const(79)());

            case MsgPackType.POSITIVE_FIXNUM_0x50: return(GenericCast <int, T> .Const(80)());

            case MsgPackType.POSITIVE_FIXNUM_0x51: return(GenericCast <int, T> .Const(81)());

            case MsgPackType.POSITIVE_FIXNUM_0x52: return(GenericCast <int, T> .Const(82)());

            case MsgPackType.POSITIVE_FIXNUM_0x53: return(GenericCast <int, T> .Const(83)());

            case MsgPackType.POSITIVE_FIXNUM_0x54: return(GenericCast <int, T> .Const(84)());

            case MsgPackType.POSITIVE_FIXNUM_0x55: return(GenericCast <int, T> .Const(85)());

            case MsgPackType.POSITIVE_FIXNUM_0x56: return(GenericCast <int, T> .Const(86)());

            case MsgPackType.POSITIVE_FIXNUM_0x57: return(GenericCast <int, T> .Const(87)());

            case MsgPackType.POSITIVE_FIXNUM_0x58: return(GenericCast <int, T> .Const(88)());

            case MsgPackType.POSITIVE_FIXNUM_0x59: return(GenericCast <int, T> .Const(89)());

            case MsgPackType.POSITIVE_FIXNUM_0x5A: return(GenericCast <int, T> .Const(90)());

            case MsgPackType.POSITIVE_FIXNUM_0x5B: return(GenericCast <int, T> .Const(91)());

            case MsgPackType.POSITIVE_FIXNUM_0x5C: return(GenericCast <int, T> .Const(92)());

            case MsgPackType.POSITIVE_FIXNUM_0x5D: return(GenericCast <int, T> .Const(93)());

            case MsgPackType.POSITIVE_FIXNUM_0x5E: return(GenericCast <int, T> .Const(94)());

            case MsgPackType.POSITIVE_FIXNUM_0x5F: return(GenericCast <int, T> .Const(95)());

            case MsgPackType.POSITIVE_FIXNUM_0x60: return(GenericCast <int, T> .Const(96)());

            case MsgPackType.POSITIVE_FIXNUM_0x61: return(GenericCast <int, T> .Const(97)());

            case MsgPackType.POSITIVE_FIXNUM_0x62: return(GenericCast <int, T> .Const(98)());

            case MsgPackType.POSITIVE_FIXNUM_0x63: return(GenericCast <int, T> .Const(99)());

            case MsgPackType.POSITIVE_FIXNUM_0x64: return(GenericCast <int, T> .Const(100)());

            case MsgPackType.POSITIVE_FIXNUM_0x65: return(GenericCast <int, T> .Const(101)());

            case MsgPackType.POSITIVE_FIXNUM_0x66: return(GenericCast <int, T> .Const(102)());

            case MsgPackType.POSITIVE_FIXNUM_0x67: return(GenericCast <int, T> .Const(103)());

            case MsgPackType.POSITIVE_FIXNUM_0x68: return(GenericCast <int, T> .Const(104)());

            case MsgPackType.POSITIVE_FIXNUM_0x69: return(GenericCast <int, T> .Const(105)());

            case MsgPackType.POSITIVE_FIXNUM_0x6A: return(GenericCast <int, T> .Const(106)());

            case MsgPackType.POSITIVE_FIXNUM_0x6B: return(GenericCast <int, T> .Const(107)());

            case MsgPackType.POSITIVE_FIXNUM_0x6C: return(GenericCast <int, T> .Const(108)());

            case MsgPackType.POSITIVE_FIXNUM_0x6D: return(GenericCast <int, T> .Const(109)());

            case MsgPackType.POSITIVE_FIXNUM_0x6E: return(GenericCast <int, T> .Const(110)());

            case MsgPackType.POSITIVE_FIXNUM_0x6F: return(GenericCast <int, T> .Const(111)());

            case MsgPackType.POSITIVE_FIXNUM_0x70: return(GenericCast <int, T> .Const(112)());

            case MsgPackType.POSITIVE_FIXNUM_0x71: return(GenericCast <int, T> .Const(113)());

            case MsgPackType.POSITIVE_FIXNUM_0x72: return(GenericCast <int, T> .Const(114)());

            case MsgPackType.POSITIVE_FIXNUM_0x73: return(GenericCast <int, T> .Const(115)());

            case MsgPackType.POSITIVE_FIXNUM_0x74: return(GenericCast <int, T> .Const(116)());

            case MsgPackType.POSITIVE_FIXNUM_0x75: return(GenericCast <int, T> .Const(117)());

            case MsgPackType.POSITIVE_FIXNUM_0x76: return(GenericCast <int, T> .Const(118)());

            case MsgPackType.POSITIVE_FIXNUM_0x77: return(GenericCast <int, T> .Const(119)());

            case MsgPackType.POSITIVE_FIXNUM_0x78: return(GenericCast <int, T> .Const(120)());

            case MsgPackType.POSITIVE_FIXNUM_0x79: return(GenericCast <int, T> .Const(121)());

            case MsgPackType.POSITIVE_FIXNUM_0x7A: return(GenericCast <int, T> .Const(122)());

            case MsgPackType.POSITIVE_FIXNUM_0x7B: return(GenericCast <int, T> .Const(123)());

            case MsgPackType.POSITIVE_FIXNUM_0x7C: return(GenericCast <int, T> .Const(124)());

            case MsgPackType.POSITIVE_FIXNUM_0x7D: return(GenericCast <int, T> .Const(125)());

            case MsgPackType.POSITIVE_FIXNUM_0x7E: return(GenericCast <int, T> .Const(126)());

            case MsgPackType.POSITIVE_FIXNUM_0x7F: return(GenericCast <int, T> .Const(127)());

            case MsgPackType.NEGATIVE_FIXNUM: return(GenericCast <int, T> .Const(-32)());

            case MsgPackType.NEGATIVE_FIXNUM_0x01: return(GenericCast <int, T> .Const(-1)());

            case MsgPackType.NEGATIVE_FIXNUM_0x02: return(GenericCast <int, T> .Const(-2)());

            case MsgPackType.NEGATIVE_FIXNUM_0x03: return(GenericCast <int, T> .Const(-3)());

            case MsgPackType.NEGATIVE_FIXNUM_0x04: return(GenericCast <int, T> .Const(-4)());

            case MsgPackType.NEGATIVE_FIXNUM_0x05: return(GenericCast <int, T> .Const(-5)());

            case MsgPackType.NEGATIVE_FIXNUM_0x06: return(GenericCast <int, T> .Const(-6)());

            case MsgPackType.NEGATIVE_FIXNUM_0x07: return(GenericCast <int, T> .Const(-7)());

            case MsgPackType.NEGATIVE_FIXNUM_0x08: return(GenericCast <int, T> .Const(-8)());

            case MsgPackType.NEGATIVE_FIXNUM_0x09: return(GenericCast <int, T> .Const(-9)());

            case MsgPackType.NEGATIVE_FIXNUM_0x0A: return(GenericCast <int, T> .Const(-10)());

            case MsgPackType.NEGATIVE_FIXNUM_0x0B: return(GenericCast <int, T> .Const(-11)());

            case MsgPackType.NEGATIVE_FIXNUM_0x0C: return(GenericCast <int, T> .Const(-12)());

            case MsgPackType.NEGATIVE_FIXNUM_0x0D: return(GenericCast <int, T> .Const(-13)());

            case MsgPackType.NEGATIVE_FIXNUM_0x0E: return(GenericCast <int, T> .Const(-14)());

            case MsgPackType.NEGATIVE_FIXNUM_0x0F: return(GenericCast <int, T> .Const(-15)());

            case MsgPackType.NEGATIVE_FIXNUM_0x10: return(GenericCast <int, T> .Const(-16)());

            case MsgPackType.NEGATIVE_FIXNUM_0x11: return(GenericCast <int, T> .Const(-17)());

            case MsgPackType.NEGATIVE_FIXNUM_0x12: return(GenericCast <int, T> .Const(-18)());

            case MsgPackType.NEGATIVE_FIXNUM_0x13: return(GenericCast <int, T> .Const(-19)());

            case MsgPackType.NEGATIVE_FIXNUM_0x14: return(GenericCast <int, T> .Const(-20)());

            case MsgPackType.NEGATIVE_FIXNUM_0x15: return(GenericCast <int, T> .Const(-21)());

            case MsgPackType.NEGATIVE_FIXNUM_0x16: return(GenericCast <int, T> .Const(-22)());

            case MsgPackType.NEGATIVE_FIXNUM_0x17: return(GenericCast <int, T> .Const(-23)());

            case MsgPackType.NEGATIVE_FIXNUM_0x18: return(GenericCast <int, T> .Const(-24)());

            case MsgPackType.NEGATIVE_FIXNUM_0x19: return(GenericCast <int, T> .Const(-25)());

            case MsgPackType.NEGATIVE_FIXNUM_0x1A: return(GenericCast <int, T> .Const(-26)());

            case MsgPackType.NEGATIVE_FIXNUM_0x1B: return(GenericCast <int, T> .Const(-27)());

            case MsgPackType.NEGATIVE_FIXNUM_0x1C: return(GenericCast <int, T> .Const(-28)());

            case MsgPackType.NEGATIVE_FIXNUM_0x1D: return(GenericCast <int, T> .Const(-29)());

            case MsgPackType.NEGATIVE_FIXNUM_0x1E: return(GenericCast <int, T> .Const(-30)());

            case MsgPackType.NEGATIVE_FIXNUM_0x1F: return(GenericCast <int, T> .Const(-31)());

            case MsgPackType.INT8: return(GenericCast <SByte, T> .Cast((SByte)GetBody().Get(0)));

            case MsgPackType.INT16: return(GenericCast <short, T> .Cast(EndianConverter.NetworkByteWordToSignedNativeByteOrder(GetBody())));

            case MsgPackType.INT32: return(GenericCast <int, T> .Cast(EndianConverter.NetworkByteDWordToSignedNativeByteOrder(GetBody())));

            case MsgPackType.INT64: return(GenericCast <long, T> .Cast(EndianConverter.NetworkByteQWordToSignedNativeByteOrder(GetBody())));

            case MsgPackType.UINT8: return(GenericCast <Byte, T> .Cast(GetBody().Get(0)));

            case MsgPackType.UINT16: return(GenericCast <ushort, T> .Cast(EndianConverter.NetworkByteWordToUnsignedNativeByteOrder(GetBody())));

            case MsgPackType.UINT32: return(GenericCast <uint, T> .Cast(EndianConverter.NetworkByteDWordToUnsignedNativeByteOrder(GetBody())));

            case MsgPackType.UINT64: return(GenericCast <ulong, T> .Cast(EndianConverter.NetworkByteQWordToUnsignedNativeByteOrder(GetBody())));

            case MsgPackType.FLOAT: return(GenericCast <float, T> .Cast(EndianConverter.NetworkByteDWordToFloatNativeByteOrder(GetBody())));

            case MsgPackType.DOUBLE: return(GenericCast <double, T> .Cast(EndianConverter.NetworkByteQWordToFloatNativeByteOrder(GetBody())));

            case MsgPackType.FIX_STR: return(GenericCast <string, T> .Const("")());

            case MsgPackType.FIX_STR_0x01:
            case MsgPackType.FIX_STR_0x02:
            case MsgPackType.FIX_STR_0x03:
            case MsgPackType.FIX_STR_0x04:
            case MsgPackType.FIX_STR_0x05:
            case MsgPackType.FIX_STR_0x06:
            case MsgPackType.FIX_STR_0x07:
            case MsgPackType.FIX_STR_0x08:
            case MsgPackType.FIX_STR_0x09:
            case MsgPackType.FIX_STR_0x0A:
            case MsgPackType.FIX_STR_0x0B:
            case MsgPackType.FIX_STR_0x0C:
            case MsgPackType.FIX_STR_0x0D:
            case MsgPackType.FIX_STR_0x0E:
            case MsgPackType.FIX_STR_0x0F:
            case MsgPackType.FIX_STR_0x10:
            case MsgPackType.FIX_STR_0x11:
            case MsgPackType.FIX_STR_0x12:
            case MsgPackType.FIX_STR_0x13:
            case MsgPackType.FIX_STR_0x14:
            case MsgPackType.FIX_STR_0x15:
            case MsgPackType.FIX_STR_0x16:
            case MsgPackType.FIX_STR_0x17:
            case MsgPackType.FIX_STR_0x18:
            case MsgPackType.FIX_STR_0x19:
            case MsgPackType.FIX_STR_0x1A:
            case MsgPackType.FIX_STR_0x1B:
            case MsgPackType.FIX_STR_0x1C:
            case MsgPackType.FIX_STR_0x1D:
            case MsgPackType.FIX_STR_0x1E:
            case MsgPackType.FIX_STR_0x1F:
            case MsgPackType.STR8:
            case MsgPackType.STR16:
            case MsgPackType.STR32:
            {
                var body = GetBody();
                var str  = Encoding.UTF8.GetString(body.Array, body.Offset, body.Count);
                return(GenericCast <string, T> .Cast(str));
            }

            case MsgPackType.BIN8:
            case MsgPackType.BIN16:
            case MsgPackType.BIN32:
            {
                var body = GetBody();
                return(GenericCast <ArraySegment <Byte>, T> .Cast(body));
            }

            case MsgPackType.FIX_EXT_4:
            {
                if (GetExtType() == -1)
                {
                    var unixtime = EndianConverter.NetworkByteDWordToUnsignedNativeByteOrder(GetBody());
                    var dt       = new DateTimeOffset(unixtime * DateTimeOffsetExtensions.TicksPerSecond + DateTimeOffsetExtensions.EpochTime.Ticks, TimeSpan.Zero);
                    return(GenericCast <DateTimeOffset, T> .Cast(dt));
                }
                break;
            }
            }

            throw new ArgumentException("GetValue to array or map: " + formatType);
        }
        /// <summary>
        /// ArrayとMap以外のタイプのペイロードを得る
        /// </summary>
        /// <returns></returns>
        public ArraySegment <Byte> GetBody()
        {
            var bytes      = Bytes;
            var formatType = Format;

            switch (formatType)
            {
            case MsgPackType.FIX_STR: return(bytes.Advance(1).Take(0));

            case MsgPackType.FIX_STR_0x01: return(bytes.Advance(1).Take(1));

            case MsgPackType.FIX_STR_0x02: return(bytes.Advance(1).Take(2));

            case MsgPackType.FIX_STR_0x03: return(bytes.Advance(1).Take(3));

            case MsgPackType.FIX_STR_0x04: return(bytes.Advance(1).Take(4));

            case MsgPackType.FIX_STR_0x05: return(bytes.Advance(1).Take(5));

            case MsgPackType.FIX_STR_0x06: return(bytes.Advance(1).Take(6));

            case MsgPackType.FIX_STR_0x07: return(bytes.Advance(1).Take(7));

            case MsgPackType.FIX_STR_0x08: return(bytes.Advance(1).Take(8));

            case MsgPackType.FIX_STR_0x09: return(bytes.Advance(1).Take(9));

            case MsgPackType.FIX_STR_0x0A: return(bytes.Advance(1).Take(10));

            case MsgPackType.FIX_STR_0x0B: return(bytes.Advance(1).Take(11));

            case MsgPackType.FIX_STR_0x0C: return(bytes.Advance(1).Take(12));

            case MsgPackType.FIX_STR_0x0D: return(bytes.Advance(1).Take(13));

            case MsgPackType.FIX_STR_0x0E: return(bytes.Advance(1).Take(14));

            case MsgPackType.FIX_STR_0x0F: return(bytes.Advance(1).Take(15));

            case MsgPackType.FIX_STR_0x10: return(bytes.Advance(1).Take(16));

            case MsgPackType.FIX_STR_0x11: return(bytes.Advance(1).Take(17));

            case MsgPackType.FIX_STR_0x12: return(bytes.Advance(1).Take(18));

            case MsgPackType.FIX_STR_0x13: return(bytes.Advance(1).Take(19));

            case MsgPackType.FIX_STR_0x14: return(bytes.Advance(1).Take(20));

            case MsgPackType.FIX_STR_0x15: return(bytes.Advance(1).Take(21));

            case MsgPackType.FIX_STR_0x16: return(bytes.Advance(1).Take(22));

            case MsgPackType.FIX_STR_0x17: return(bytes.Advance(1).Take(23));

            case MsgPackType.FIX_STR_0x18: return(bytes.Advance(1).Take(24));

            case MsgPackType.FIX_STR_0x19: return(bytes.Advance(1).Take(25));

            case MsgPackType.FIX_STR_0x1A: return(bytes.Advance(1).Take(26));

            case MsgPackType.FIX_STR_0x1B: return(bytes.Advance(1).Take(27));

            case MsgPackType.FIX_STR_0x1C: return(bytes.Advance(1).Take(28));

            case MsgPackType.FIX_STR_0x1D: return(bytes.Advance(1).Take(29));

            case MsgPackType.FIX_STR_0x1E: return(bytes.Advance(1).Take(30));

            case MsgPackType.FIX_STR_0x1F: return(bytes.Advance(1).Take(31));

            case MsgPackType.STR8:
            case MsgPackType.BIN8:
            {
                var count = bytes.Get(1);
                return(bytes.Advance(1 + 1).Take(count));
            }

            case MsgPackType.STR16:
            case MsgPackType.BIN16:
            {
                var count = EndianConverter.NetworkByteWordToUnsignedNativeByteOrder(bytes.Advance(1));
                return(bytes.Advance(1 + 2).Take(count));
            }

            case MsgPackType.STR32:
            case MsgPackType.BIN32:
            {
                var count = EndianConverter.NetworkByteDWordToUnsignedNativeByteOrder(bytes.Advance(1));
                return(bytes.Advance(1 + 4).Take((int)count));
            }

            case MsgPackType.NIL:
            case MsgPackType.TRUE:
            case MsgPackType.FALSE:
            case MsgPackType.POSITIVE_FIXNUM:
            case MsgPackType.POSITIVE_FIXNUM_0x01:
            case MsgPackType.POSITIVE_FIXNUM_0x02:
            case MsgPackType.POSITIVE_FIXNUM_0x03:
            case MsgPackType.POSITIVE_FIXNUM_0x04:
            case MsgPackType.POSITIVE_FIXNUM_0x05:
            case MsgPackType.POSITIVE_FIXNUM_0x06:
            case MsgPackType.POSITIVE_FIXNUM_0x07:
            case MsgPackType.POSITIVE_FIXNUM_0x08:
            case MsgPackType.POSITIVE_FIXNUM_0x09:
            case MsgPackType.POSITIVE_FIXNUM_0x0A:
            case MsgPackType.POSITIVE_FIXNUM_0x0B:
            case MsgPackType.POSITIVE_FIXNUM_0x0C:
            case MsgPackType.POSITIVE_FIXNUM_0x0D:
            case MsgPackType.POSITIVE_FIXNUM_0x0E:
            case MsgPackType.POSITIVE_FIXNUM_0x0F:

            case MsgPackType.POSITIVE_FIXNUM_0x10:
            case MsgPackType.POSITIVE_FIXNUM_0x11:
            case MsgPackType.POSITIVE_FIXNUM_0x12:
            case MsgPackType.POSITIVE_FIXNUM_0x13:
            case MsgPackType.POSITIVE_FIXNUM_0x14:
            case MsgPackType.POSITIVE_FIXNUM_0x15:
            case MsgPackType.POSITIVE_FIXNUM_0x16:
            case MsgPackType.POSITIVE_FIXNUM_0x17:
            case MsgPackType.POSITIVE_FIXNUM_0x18:
            case MsgPackType.POSITIVE_FIXNUM_0x19:
            case MsgPackType.POSITIVE_FIXNUM_0x1A:
            case MsgPackType.POSITIVE_FIXNUM_0x1B:
            case MsgPackType.POSITIVE_FIXNUM_0x1C:
            case MsgPackType.POSITIVE_FIXNUM_0x1D:
            case MsgPackType.POSITIVE_FIXNUM_0x1E:
            case MsgPackType.POSITIVE_FIXNUM_0x1F:

            case MsgPackType.POSITIVE_FIXNUM_0x20:
            case MsgPackType.POSITIVE_FIXNUM_0x21:
            case MsgPackType.POSITIVE_FIXNUM_0x22:
            case MsgPackType.POSITIVE_FIXNUM_0x23:
            case MsgPackType.POSITIVE_FIXNUM_0x24:
            case MsgPackType.POSITIVE_FIXNUM_0x25:
            case MsgPackType.POSITIVE_FIXNUM_0x26:
            case MsgPackType.POSITIVE_FIXNUM_0x27:
            case MsgPackType.POSITIVE_FIXNUM_0x28:
            case MsgPackType.POSITIVE_FIXNUM_0x29:
            case MsgPackType.POSITIVE_FIXNUM_0x2A:
            case MsgPackType.POSITIVE_FIXNUM_0x2B:
            case MsgPackType.POSITIVE_FIXNUM_0x2C:
            case MsgPackType.POSITIVE_FIXNUM_0x2D:
            case MsgPackType.POSITIVE_FIXNUM_0x2E:
            case MsgPackType.POSITIVE_FIXNUM_0x2F:

            case MsgPackType.POSITIVE_FIXNUM_0x30:
            case MsgPackType.POSITIVE_FIXNUM_0x31:
            case MsgPackType.POSITIVE_FIXNUM_0x32:
            case MsgPackType.POSITIVE_FIXNUM_0x33:
            case MsgPackType.POSITIVE_FIXNUM_0x34:
            case MsgPackType.POSITIVE_FIXNUM_0x35:
            case MsgPackType.POSITIVE_FIXNUM_0x36:
            case MsgPackType.POSITIVE_FIXNUM_0x37:
            case MsgPackType.POSITIVE_FIXNUM_0x38:
            case MsgPackType.POSITIVE_FIXNUM_0x39:
            case MsgPackType.POSITIVE_FIXNUM_0x3A:
            case MsgPackType.POSITIVE_FIXNUM_0x3B:
            case MsgPackType.POSITIVE_FIXNUM_0x3C:
            case MsgPackType.POSITIVE_FIXNUM_0x3D:
            case MsgPackType.POSITIVE_FIXNUM_0x3E:
            case MsgPackType.POSITIVE_FIXNUM_0x3F:

            case MsgPackType.POSITIVE_FIXNUM_0x40:
            case MsgPackType.POSITIVE_FIXNUM_0x41:
            case MsgPackType.POSITIVE_FIXNUM_0x42:
            case MsgPackType.POSITIVE_FIXNUM_0x43:
            case MsgPackType.POSITIVE_FIXNUM_0x44:
            case MsgPackType.POSITIVE_FIXNUM_0x45:
            case MsgPackType.POSITIVE_FIXNUM_0x46:
            case MsgPackType.POSITIVE_FIXNUM_0x47:
            case MsgPackType.POSITIVE_FIXNUM_0x48:
            case MsgPackType.POSITIVE_FIXNUM_0x49:
            case MsgPackType.POSITIVE_FIXNUM_0x4A:
            case MsgPackType.POSITIVE_FIXNUM_0x4B:
            case MsgPackType.POSITIVE_FIXNUM_0x4C:
            case MsgPackType.POSITIVE_FIXNUM_0x4D:
            case MsgPackType.POSITIVE_FIXNUM_0x4E:
            case MsgPackType.POSITIVE_FIXNUM_0x4F:

            case MsgPackType.POSITIVE_FIXNUM_0x50:
            case MsgPackType.POSITIVE_FIXNUM_0x51:
            case MsgPackType.POSITIVE_FIXNUM_0x52:
            case MsgPackType.POSITIVE_FIXNUM_0x53:
            case MsgPackType.POSITIVE_FIXNUM_0x54:
            case MsgPackType.POSITIVE_FIXNUM_0x55:
            case MsgPackType.POSITIVE_FIXNUM_0x56:
            case MsgPackType.POSITIVE_FIXNUM_0x57:
            case MsgPackType.POSITIVE_FIXNUM_0x58:
            case MsgPackType.POSITIVE_FIXNUM_0x59:
            case MsgPackType.POSITIVE_FIXNUM_0x5A:
            case MsgPackType.POSITIVE_FIXNUM_0x5B:
            case MsgPackType.POSITIVE_FIXNUM_0x5C:
            case MsgPackType.POSITIVE_FIXNUM_0x5D:
            case MsgPackType.POSITIVE_FIXNUM_0x5E:
            case MsgPackType.POSITIVE_FIXNUM_0x5F:

            case MsgPackType.POSITIVE_FIXNUM_0x60:
            case MsgPackType.POSITIVE_FIXNUM_0x61:
            case MsgPackType.POSITIVE_FIXNUM_0x62:
            case MsgPackType.POSITIVE_FIXNUM_0x63:
            case MsgPackType.POSITIVE_FIXNUM_0x64:
            case MsgPackType.POSITIVE_FIXNUM_0x65:
            case MsgPackType.POSITIVE_FIXNUM_0x66:
            case MsgPackType.POSITIVE_FIXNUM_0x67:
            case MsgPackType.POSITIVE_FIXNUM_0x68:
            case MsgPackType.POSITIVE_FIXNUM_0x69:
            case MsgPackType.POSITIVE_FIXNUM_0x6A:
            case MsgPackType.POSITIVE_FIXNUM_0x6B:
            case MsgPackType.POSITIVE_FIXNUM_0x6C:
            case MsgPackType.POSITIVE_FIXNUM_0x6D:
            case MsgPackType.POSITIVE_FIXNUM_0x6E:
            case MsgPackType.POSITIVE_FIXNUM_0x6F:

            case MsgPackType.POSITIVE_FIXNUM_0x70:
            case MsgPackType.POSITIVE_FIXNUM_0x71:
            case MsgPackType.POSITIVE_FIXNUM_0x72:
            case MsgPackType.POSITIVE_FIXNUM_0x73:
            case MsgPackType.POSITIVE_FIXNUM_0x74:
            case MsgPackType.POSITIVE_FIXNUM_0x75:
            case MsgPackType.POSITIVE_FIXNUM_0x76:
            case MsgPackType.POSITIVE_FIXNUM_0x77:
            case MsgPackType.POSITIVE_FIXNUM_0x78:
            case MsgPackType.POSITIVE_FIXNUM_0x79:
            case MsgPackType.POSITIVE_FIXNUM_0x7A:
            case MsgPackType.POSITIVE_FIXNUM_0x7B:
            case MsgPackType.POSITIVE_FIXNUM_0x7C:
            case MsgPackType.POSITIVE_FIXNUM_0x7D:
            case MsgPackType.POSITIVE_FIXNUM_0x7E:
            case MsgPackType.POSITIVE_FIXNUM_0x7F:

            case MsgPackType.NEGATIVE_FIXNUM:
            case MsgPackType.NEGATIVE_FIXNUM_0x01:
            case MsgPackType.NEGATIVE_FIXNUM_0x02:
            case MsgPackType.NEGATIVE_FIXNUM_0x03:
            case MsgPackType.NEGATIVE_FIXNUM_0x04:
            case MsgPackType.NEGATIVE_FIXNUM_0x05:
            case MsgPackType.NEGATIVE_FIXNUM_0x06:
            case MsgPackType.NEGATIVE_FIXNUM_0x07:
            case MsgPackType.NEGATIVE_FIXNUM_0x08:
            case MsgPackType.NEGATIVE_FIXNUM_0x09:
            case MsgPackType.NEGATIVE_FIXNUM_0x0A:
            case MsgPackType.NEGATIVE_FIXNUM_0x0B:
            case MsgPackType.NEGATIVE_FIXNUM_0x0C:
            case MsgPackType.NEGATIVE_FIXNUM_0x0D:
            case MsgPackType.NEGATIVE_FIXNUM_0x0E:
            case MsgPackType.NEGATIVE_FIXNUM_0x0F:
            case MsgPackType.NEGATIVE_FIXNUM_0x10:
            case MsgPackType.NEGATIVE_FIXNUM_0x11:
            case MsgPackType.NEGATIVE_FIXNUM_0x12:
            case MsgPackType.NEGATIVE_FIXNUM_0x13:
            case MsgPackType.NEGATIVE_FIXNUM_0x14:
            case MsgPackType.NEGATIVE_FIXNUM_0x15:
            case MsgPackType.NEGATIVE_FIXNUM_0x16:
            case MsgPackType.NEGATIVE_FIXNUM_0x17:
            case MsgPackType.NEGATIVE_FIXNUM_0x18:
            case MsgPackType.NEGATIVE_FIXNUM_0x19:
            case MsgPackType.NEGATIVE_FIXNUM_0x1A:
            case MsgPackType.NEGATIVE_FIXNUM_0x1B:
            case MsgPackType.NEGATIVE_FIXNUM_0x1C:
            case MsgPackType.NEGATIVE_FIXNUM_0x1D:
            case MsgPackType.NEGATIVE_FIXNUM_0x1E:
            case MsgPackType.NEGATIVE_FIXNUM_0x1F:
                return(bytes.Advance(1).Take(0));

            case MsgPackType.UINT8:
            case MsgPackType.INT8:
                return(bytes.Advance(1).Take(1));

            case MsgPackType.UINT16:
            case MsgPackType.INT16:
                return(bytes.Advance(1).Take(2));

            case MsgPackType.UINT32:
            case MsgPackType.INT32:
            case MsgPackType.FLOAT:
                return(bytes.Advance(1).Take(4));

            case MsgPackType.UINT64:
            case MsgPackType.INT64:
            case MsgPackType.DOUBLE:
                return(bytes.Advance(1).Take(8));

            case MsgPackType.FIX_EXT_1:
                return(bytes.Advance(2).Take(1));

            case MsgPackType.FIX_EXT_2:
                return(bytes.Advance(2).Take(2));

            case MsgPackType.FIX_EXT_4:
                return(bytes.Advance(2).Take(4));

            case MsgPackType.FIX_EXT_8:
                return(bytes.Advance(2).Take(8));

            case MsgPackType.FIX_EXT_16:
                return(bytes.Advance(2).Take(16));

            case MsgPackType.EXT8:
            {
                var count = bytes.Get(1);
                return(bytes.Advance(1 + 1 + 1).Take(count));
            }

            case MsgPackType.EXT16:
            {
                var count = EndianConverter.NetworkByteWordToUnsignedNativeByteOrder(bytes.Advance(1));
                return(bytes.Advance(1 + 2 + 1).Take(count));
            }

            case MsgPackType.EXT32:
            {
                var count = EndianConverter.NetworkByteDWordToUnsignedNativeByteOrder(bytes.Advance(1));
                return(bytes.Advance(1 + 4 + 1).Take((int)count));
            }

            default:
                throw new ArgumentException("unknown type: " + formatType);
            }
        }
        /// <summary>
        /// Array又はMapの子要素の数を得る
        /// </summary>
        /// <param name="count"></param>
        /// <returns></returns>
        static ArraySegment <Byte> GetItemCount(ArraySegment <Byte> bytes, MsgPackType formatType, out UInt32 count)
        {
            switch (formatType)
            {
            case MsgPackType.FIX_ARRAY: count = 0; return(bytes.Advance(1));

            case MsgPackType.FIX_ARRAY_0x1: count = 1; return(bytes.Advance(1));

            case MsgPackType.FIX_ARRAY_0x2: count = 2; return(bytes.Advance(1));

            case MsgPackType.FIX_ARRAY_0x3: count = 3; return(bytes.Advance(1));

            case MsgPackType.FIX_ARRAY_0x4: count = 4; return(bytes.Advance(1));

            case MsgPackType.FIX_ARRAY_0x5: count = 5; return(bytes.Advance(1));

            case MsgPackType.FIX_ARRAY_0x6: count = 6; return(bytes.Advance(1));

            case MsgPackType.FIX_ARRAY_0x7: count = 7; return(bytes.Advance(1));

            case MsgPackType.FIX_ARRAY_0x8: count = 8; return(bytes.Advance(1));

            case MsgPackType.FIX_ARRAY_0x9: count = 9; return(bytes.Advance(1));

            case MsgPackType.FIX_ARRAY_0xA: count = 10; return(bytes.Advance(1));

            case MsgPackType.FIX_ARRAY_0xB: count = 11; return(bytes.Advance(1));

            case MsgPackType.FIX_ARRAY_0xC: count = 12; return(bytes.Advance(1));

            case MsgPackType.FIX_ARRAY_0xD: count = 13; return(bytes.Advance(1));

            case MsgPackType.FIX_ARRAY_0xE: count = 14; return(bytes.Advance(1));

            case MsgPackType.FIX_ARRAY_0xF: count = 15; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP: count = 0; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP_0x1: count = 1; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP_0x2: count = 2; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP_0x3: count = 3; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP_0x4: count = 4; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP_0x5: count = 5; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP_0x6: count = 6; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP_0x7: count = 7; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP_0x8: count = 8; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP_0x9: count = 9; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP_0xA: count = 10; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP_0xB: count = 11; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP_0xC: count = 12; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP_0xD: count = 13; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP_0xE: count = 14; return(bytes.Advance(1));

            case MsgPackType.FIX_MAP_0xF: count = 15; return(bytes.Advance(1));

            case MsgPackType.ARRAY16:
            case MsgPackType.MAP16:
                count = EndianConverter.NetworkByteWordToUnsignedNativeByteOrder(bytes.Advance(1));
                return(bytes.Advance(1 + 2));

            case MsgPackType.ARRAY32:
            case MsgPackType.MAP32:
                count = EndianConverter.NetworkByteDWordToUnsignedNativeByteOrder(bytes.Advance(1));
                return(bytes.Advance(1 + 4));

            default:
                throw new ArgumentException("is not collection: " + formatType);
            }
        }