Yea.Compression.BitArrayCompress.InternalGet C# (CSharp) Method

        private bool InternalGet(int index)
        {
            int pointer = index >> 5;
            uint mask = (uint) 1 << (31 - // high order bit get
                                     (index%32));

            if (pointer < _uncompressed.Length)
                return (_uncompressed[pointer] & mask) != 0;
            return false;
        }