Method ReadVarUInt64

csharp/src/Fory/ByteBuffer.cs:587–636

()

    }

    public ulong ReadVarUInt64()
    {
        byte[] storage = _storage;
        int cursor = _cursor;
        int length = _length;
        if (cursor >= length)
        {
            throw new OutOfBoundsException(cursor, 1, length);
        }

        byte first = storage[cursor];
        if ((first & 0x80) == 0)
        {
            _cursor = cursor + 1;
            return first;
        }

        cursor += 1;
        ulong result = (ulong)(first & 0x7F);
        int shift = 7;
        for (var i = 1; i < 8; i++)
        {
            if (cursor >= length)
            {
                throw new OutOfBoundsException(cursor, 1, length);
            }

            byte b = storage[cursor];
            cursor += 1;
            result |= (ulong)(b & 0x7F) << shift;
            if ((b & 0x80) == 0)
            {
                _cursor = cursor;
                return result;
            }

            shift += 7;
        }

        if (cursor >= length)
        {
            throw new OutOfBoundsException(cursor, 1, length);
        }

        byte last = storage[cursor];
        cursor += 1;
        result |= (ulong)last << 56;
        _cursor = cursor;
        return result;
    }

    public ulong ReadVarUInt36Small()
    {