/// <summary>
/// Returns the popcount or cardinality of the intersection of the two sets.
/// Neither set is modified.
/// </summary>
public static long IntersectionCount(OpenBitSet a, OpenBitSet b)
{
return(BitUtil.Pop_Intersect(a.m_bits, b.m_bits, 0, Math.Min(a.m_wlen, b.m_wlen)));
}
public static long IntersectionCount(FixedBitSet a, FixedBitSet b)
{
return(BitUtil.Pop_Intersect(a.bits, b.bits, 0, Math.Min(a.numWords, b.numWords)));
}
