[Interest] QSopedPointer crashes application at exit

[Igor Mironchik]

Hi.

I wrote simple test application that reproduse my problem.

The problem is in QScopedPointer at exit point

  inline T *data() const
{
     return d;
}

method.

Here is call stack:

Qt5Widgetsd.dll!QScopedPointer<QObjectData,QScopedPointerDeleter<QObjectData> 
 >::data() Line 132    C++
Qt5Widgetsd.dll!qGetPtrHelper<QScopedPointer<QObjectData,QScopedPointerDeleter<QObjectData> 
 > >(const QScopedPointer<QObjectData,QScopedPointerDeleter<QObjectData> 
 > & p) Line 886    C++
      Qt5Widgetsd.dll!QApplication::d_func() Line 222    C++
      Qt5Widgetsd.dll!QWidget::~QWidget() Line 1432    C++
      Qt5Widgetsd.dll!QMainWindow::~QMainWindow() Line 379    C++
      test.exe!MainWindow::~MainWindow() Line 36    C++
      test.exe!`MainWindow::instance'::`2'::`dynamic atexit destructor 
for 'inst''()    C++
      msvcr110d.dll!doexit(int code, int quick, int retcaller) Line 585    C
      msvcr110d.dll!exit(int code) Line 395    C
      test.exe!__tmainCRTStartup() Line 549    C
      test.exe!mainCRTStartup() Line 377    C
      kernel32.dll!76f9336a()    Unknown
      [Frames below may be incorrect and/or missing, no symbols loaded 
for kernel32.dll]
      ntdll.dll!77d49f72()    Unknown
      ntdll.dll!77d49f45()    Unknown

But why?

Here  is the code:


#include  <QApplication>

#include  <QMainWindow>

#include  <QWidget>

#include  <QScopedPointer>

#include  <QMenuBar>

#include  <QMenu>

class  MainWindowPrivate  {

public:

	MainWindowPrivate()

		:	m_widget(  0  )

	{

	}

	QWidget  *  m_widget;

};

class  MainWindow

	:	public  QMainWindow

{

	Q_OBJECT

private:

	MainWindow(  QWidget  *  parent  =  0,  Qt::WindowFlags  f  =  0  )

		:	QMainWindow(  parent,  f  )

		,	d(  new  MainWindowPrivate  )

	{

		init();

	}

	~MainWindow()

	{

	}

public:

	static  MainWindow  &  instance()

	{

		static  MainWindow  inst;

		return  inst;

	}

private:

	void  init()

	{

		QMenu  *  fileMenu  =  menuBar()->addMenu(  tr(  "&File"  )  );

		fileMenu->addAction(  QIcon(),

			tr(  "E&xit"  ),  qApp,  SLOT(  quit()  ),

			QKeySequence(  tr(  "Ctrl+Q"  )  )  );

		d->m_widget  =  new  QWidget(  this  );

		setCentralWidget(  d->m_widget  );

	}

private:

	Q_DISABLE_COPY(  MainWindow  )

	QScopedPointer<  MainWindowPrivate  >  d;

};

int  main(  int  argc,  char  **  argv  )

{

	QApplication  app(  argc,  argv  );

	MainWindow::instance().show();

	return  app.exec();

}

#include  "main.moc"


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