public SetCollection union(object set) { SetStorage items; if (SetStorage.GetItems(set, out items)) { items = SetStorage.Union(_items, items); } else { items.UnionUpdate(_items); } return(Make(items)); }
public SetCollection union(FrozenSetCollection set) { return(Make(SetStorage.Union(_items, set._items))); }
public SetCollection union([NotNull] SetCollection set) { return(Make(SetStorage.Union(_items, set._items))); }