@Override
public Container add(int begin, int end) {
BitmapContainer answer = clone();
Util.setBitmapRange(answer.bitmap, begin, end);
answer.computeCardinality();
return answer;
}
@Override
public Container remove(int begin, int end) {
BitmapContainer answer = clone();
Util.resetBitmapRange(answer.bitmap, begin, end);
answer.computeCardinality();
if (answer.getCardinality() <= ArrayContainer.DEFAULT_MAX_SIZE)
return answer.toArrayContainer();
return answer;
}
@Override
public Container andNot(RunContainer x) {
// could be rewritten as return andNot(x.toBitmapOrArrayContainer());
BitmapContainer answer = this.clone();
for (int rlepos = 0; rlepos < x.nbrruns; ++rlepos) {
int start = Util.toIntUnsigned(x.getValue(rlepos));
int end = start + Util.toIntUnsigned(x.getLength(rlepos)) + 1;
Util.resetBitmapRange(answer.bitmap, start, end);
}
answer.computeCardinality();
if (answer.getCardinality() > ArrayContainer.DEFAULT_MAX_SIZE) return answer;
else return answer.toArrayContainer();
}