internal override bool AddIfNotPresent(T item)
{
if (!IsWithinRange(item))
{
throw new ArgumentOutOfRangeException(nameof(item));
}
bool ret = _underlying.AddIfNotPresent(item);
VersionCheck();
#if DEBUG
Debug.Assert(this.versionUpToDate() && root == _underlying.FindRange(_min, _max));
#endif
return(ret);
}
private void VersionCheckImpl()
{
if (version != _underlying.version)
{
root = _underlying.FindRange(_min, _max, _lBoundActive, _uBoundActive);
version = _underlying.version;
count = 0;
InOrderTreeWalk(n => { count++; return(true); });
}
}
public TreeSubSet(SortedSet <T> Underlying, T Min, T Max, bool lowerBoundActive, bool upperBoundActive)
: base(Underlying.Comparer)
{
_underlying = Underlying;
_min = Min;
_max = Max;
_lBoundActive = lowerBoundActive;
_uBoundActive = upperBoundActive;
root = _underlying.FindRange(_min, _max, _lBoundActive, _uBoundActive); // root is first element within range
count = 0;
version = -1;
VersionCheckImpl();
}
