Akka.Interfaced.ProtobufSerializer.SerializeExtensions.Read7BitEncodedInt C# (CSharp) Метод

        public static int Read7BitEncodedInt(this Stream stream)
        {
            int ret = 0;
            int shift = 0;
            int len;
            byte b;

            for (len = 0; len < 5; ++len)
            {
                b = (byte)stream.ReadByte();

                ret = ret | ((b & 0x7f) << shift);
                shift += 7;
                if ((b & 0x80) == 0)
                    break;
            }

            if (len < 5)
                return ret;

            throw new FormatException("Too many bytes in what should have been a 7 bit encoded Int32.");
        }