Problems with executing the *.exe file

[space_otter]

this->setObjectName(name);
    this->mStack = new Stack(ui->decimalPlacesBox->value(), ui->accuracyBox->value());
 
    connect(ui->accuracyBox, SIGNAL(valueChanged(int)), mStack, SLOT(setAccuracy(int)));
 
    ui->setupUi(this); // should come first, was causing segmentation fault.
    ui->stackView->setModel(mStack);

this->setObjectName(name);
    this->mStack = new Stack(ui->decimalPlacesBox->value(), ui->accuracyBox->value());

    connect(ui->accuracyBox, SIGNAL(valueChanged(int)), mStack, SLOT(setAccuracy(int)));

    ui->setupUi(this); // should come first, was causing segmentation fault.
    ui->stackView->setModel(mStack);

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QModelIndex Stack::parent ( const QModelIndex & index ) const {
        return index.parent();
}

QModelIndex Stack::parent ( const QModelIndex & index ) const {
        return index.parent();
}

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The previous caused an infinite loop. I blame this on the lack of clear documentation on QAbstractItemModel.