[Qgis-developer] dynamic_cast related to segfaults

[Giuseppe Sucameli]

Hi guys,
while I wrote a patch for QgsLegend, I found an issue related with
segmentation faults.

Here the bugged code:

QTreeWidgetItem* destItem = mDropTarget;
...
QgsLegendItem* dest = dynamic_cast<QgsLegendItem *>( destItem );

If mDropTarget is NULL QGis crashes with segfault.
In this case the problem is the dynamic_cast, used without make a null test
on destItem.

May some other crashes be due to a code like this??

Cheers.

-- 
Giuseppe Sucameli
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