Checking if a pointer is dangling

[Cruz]

Hello,

does anyone know a way to detect if a pointer to a subclass of QObject or even a QWidget is dangling?

class MyWidget : public QWidget;
 
MyWidget w = new MyWidget(parent);
 
somewhere()
{
   delete w;
}
 
somewhereelse()
{
   if (w is not dangling) // <-- how to do this?
      do something with w;
}

class MyWidget : public QWidget;

MyWidget w = new MyWidget(parent);

somewhere()
{
   delete w;
}

somewhereelse()
{
   if (w is not dangling) // <-- how to do this?
      do something with w;
}

To copy to clipboard, switch view to plain text mode 

I know that you can connect the destroyed() signal, but in my case it's very tiresome. It would be much nicer (and safer) if I could somehow tell by the pointer, if it still points to a valid object or not. Is there such a path to take, oh masters of Qt?