BitsetsNET.RoaringArray.Resize C# (CSharp) Method

        public void Resize(int newSize)
        {
            Utility.Fill(keys, newSize, Size, (ushort)0);
            Utility.Fill(values, newSize, Size, null);
            Size = newSize;
        }

        /// <summary>
        /// Performs an in-place intersection of two Roaring Bitsets.
        /// </summary>
        /// <param name="other">the second Roaring Bitset to intersect</param>
        private void AndWith(RoaringBitset other)
        {
            int thisLength = containers.Size;
            int otherLength = other.containers.Size;
            int pos1 = 0, pos2 = 0, intersectionSize = 0;

            while (pos1 < thisLength && pos2 < otherLength)
            {
                ushort s1 = containers.GetKeyAtIndex(pos1);
                ushort s2 = other.containers.GetKeyAtIndex(pos2);

                if (s1 == s2)
                {
                    Container c1 = containers.GetContainerAtIndex(pos1);
                    Container c2 = other.containers.GetContainerAtIndex(pos2);
                    Container c  = c1.IAnd(c2);

                    if (c.GetCardinality() > 0)
                    {
                        containers.ReplaceKeyAndContainerAtIndex(intersectionSize++, s1, c);
                    }

                    ++pos1;
                    ++pos2;
                }
                else if (s1 < s2)
                {
                    // s1 < s2
                    pos1 = containers.AdvanceUntil(s2, pos1);
                }
                else
                {
                    // s1 > s2
                    pos2 = other.containers.AdvanceUntil(s1, pos2);
                }
            }

            containers.Resize(intersectionSize);
        }