public OrderedSortedSet([NotNull] IEnumerable <T> source, IComparer <T>?comparer)
{
if (source is null)
{
throw new ArgumentNullException(nameof(source));
}
source = source.Materialize();
Inner = new OrderedComparer <T>(source, comparer);
Set = new FixedSortedSet <T>(source, Inner);
}
public OrderedSortedSet(IComparer <T>?comparer)
{
Inner = new OrderedComparer <T>(comparer);
Set = new FixedSortedSet <T>((IComparer <T>)Inner);
}
