Method appendCopy

roaring64/roaringarray64.go:45–57

(sa roaringArray64, startingindex int)

}

func (ra *roaringArray64) appendCopy(sa roaringArray64, startingindex int) {
	// cow only if the two request it, or if we already have a lightweight copy
	copyonwrite := (ra.copyOnWrite && sa.copyOnWrite) || sa.needsCopyOnWrite(startingindex)
	if !copyonwrite {
		// since there is no copy-on-write, we need to clone the container (this is important)
		ra.appendContainer(sa.keys[startingindex], sa.containers[startingindex].Clone(), copyonwrite)
	} else {
		ra.appendContainer(sa.keys[startingindex], sa.containers[startingindex].Clone(), copyonwrite)
		if !sa.needsCopyOnWrite(startingindex) {
			sa.setNeedsCopyOnWrite(startingindex)
		}
	}
}

func (ra *roaringArray64) appendWithoutCopyMany(sa roaringArray64, startingindex, end int) {
	for i := startingindex; i < end; i++ {