what is the best way to delete all QTreeWidgetItems in a QTreeWidget?

[opengpu2]

what is the best way to delete all QTreeWidgetItems in a QTreeWidget?
now i use QTreeWidget::clear(), but i doubt that there is some memory not released immediately..
thank you

[mrjj]

@opengpu2 said:

QTreeWidget::clear()

is the best way to do it.

void QTreeWidget::clear()
{
    Q_D(QTreeWidget);
    selectionModel()->clear();
    d->treeModel()->clear();
}

void QTreeModel::clear()
{
    SkipSorting skipSorting(this);
    beginResetModel();
    for (int i = 0; i < rootItem->childCount(); ++i) {
        QTreeWidgetItem *item = rootItem->children.at(i);
        item->par = 0;
        item->view = 0;
        delete item;
    }
    rootItem->children.clear();
    sortPendingTimer.stop();
    endResetModel();
}