[QT4] Defining second QTreeWidget in header == segfault?

[ucntcme]

I've got a MainWIndow subclass. In MainWindow.h I have

...
  QTreeWidget  *l_treeWidget;
...

...
  QTreeWidget  *l_treeWidget;
...

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And it works fine. I use it, it works. Beautiful.

Now, I need to add a second one:

...
  QTreeWidget  *l_treeWidget;
  QTreeWidget  *w_treeWidget;
...

...
  QTreeWidget  *l_treeWidget;
  QTreeWidget  *w_treeWidget;
...

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And it segfaults. No need to even try to use it, simply declaring it in the class definition causes a segfault. Any ideas?

[marcel]

I think you know that what you say is practically impossible...
You must have a reference to it somewhere in your code.

Try to allocate the second tree widget in the constructor of you class and see if it crashes again.

[ucntcme]

Trust me, I know. It started last night, so I went to bed and slept on it. Same thing today.

If I simply create a new one in the constructor without specifying it in the header, it works. And nope, no references to it anywhere. It's brand new.

However thinking it may have been a funky build of Qt, I did a Qt upgrade(from 4.3.0 to 4.3.1) and now it seems to have stopped.

[wysota]

Try recompiling the whole project (make distclean && qmake && make), it sometimes helps.

[ucntcme]

Thanks wysota, that seems to have resolved it.

[jacek]

How do you initialize w_treeWidget?

[marcel]

I meant leaving the second tree widget a class member and also initialize it in the constructor.

Otherwise, maybe you could post some code.

Regards