protected int CompareToEmpty(object obj)
{
XmlEmptySortKey that = obj as XmlEmptySortKey;
Debug.Assert(that != null && !(this is XmlEmptySortKey));
return(that.IsEmptyGreatest ? -1 : 1);
}
public override int CompareTo(object obj)
{
XmlEmptySortKey that = obj as XmlEmptySortKey;
if (that == null)
{
// Empty compared to non-empty
Debug.Assert(obj is XmlSortKey);
return(-(obj as XmlSortKey).CompareTo(this));
}
// Empty compared to empty
return(BreakSortingTie(that));
}