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

        private uint[] UnpackOffsets()
        {
            // return bitmap uints
            uint max = 0;
            foreach (var i in _offsets)
                if (i > max)
                    max = i;

            var ints = new uint[(max >> 5) + 1];

            foreach (var index in _offsets)
            {
                int pointer = ((int) index) >> 5;
                uint mask = (uint) 1 << (31 - // high order bit set
                                         ((int) index%32));

                ints[pointer] |= mask;
            }

            return ints;
        }