Deleting an element from a Qt container causes the dynamically created object to be deleted?

Question

Qt

I will show everything with an example.

QMap<int, PlotCurve*> m_curveMap;
// ...
PlotCurve* curve = new PlotCurve(this, data);
m_curveMap[id] = curve;
// ...
m_curveMap.remove(id);

Will the element under the id key be removed from the heap in this case, or is it only removed from the container? If not, what is the best way to implement deletion from memory and container at the same time?

Answer 1

Poznovato, but still - no, it does not delete the object, there remains a broken pointer. If you need to clear it completely, then qDeleteAll(); map.clear(); And it is better to use QSharedPointer.