App crashing on addRow to QStandardItemModel

[homerun4711]

Hi!

I try to add values from a map to a QStandardItemModel, but my application is crashing. I have no idea why..

The last debug output is

QStandardItemModel::invisibleRootItem() const

The code is

QMap<QString, QString> map;
QMapIterator<QString, QString> i(map);
QList<QStandardItem*> rowList;
QStandardItemModel* test;
QStandardItem *item = test->invisibleRootItem();
 
 
     while (i.hasNext()) {
         i.next();
         rowList << new QStandardItem(i.value());
         }
 
        item->appendRow(rowList);

QMap<QString, QString> map;
QMapIterator<QString, QString> i(map);
QList<QStandardItem*> rowList;
QStandardItemModel* test;
QStandardItem *item = test->invisibleRootItem();


     while (i.hasNext()) {
         i.next();
         rowList << new QStandardItem(i.value());
         }

        item->appendRow(rowList);

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Can you tell me why this happens?

Kind regards,
HomeR