make_filter_iterator(item_selected, view_.begin(), view_.end()),
make_filter_iterator(item_selected, view_.end(), view_.end()));
stable_sort(selected_items.begin(), selected_items.end(),
make_filter_iterator(item_selected, view_.begin(), view_.end()),
make_filter_iterator(item_selected, view_.end(), view_.end()));
stable_sort(selected_items.begin(), selected_items.end(),