Does QVariant call a destructor on the contained class?

Asked Nov 30 '19 at 21:30

Active Dec 01 '19 at 04:31

Viewed 118 times

If I put a class with a destructor in a QVariant, will the QVariant's destruction call the proper destructor of the non-POD class it contains?

Here's an example, where I'm putting a class into a QVariant owned by a QWidget:

QVariant variant = QVariant::fromValue(MyObject());
widget->setProperty("ui", variant);

My expectation is that the lifetime of the dynamic variable I care about (MyObject) will last until the QWidget is destroyed, and at that time, MyObject will be properly destructed with a call the it's destructor. (i.e. ~QWidget() -> ~QVariant() -> ~MyObject())

edited Dec 01 '19 at 04:31

asked Nov 30 '19 at 21:30

Jamin Grey

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`MyObject()` is a pointer, not c'tor? But then where's the c'tor? Confused. Did you try a qDebug() in the MyObject d'tor? – Maxim Paperno Dec 01 '19 at 02:00
If you pass a value in, the instance will be destroyed with QVariant, if you don't want, pass a pointer. – Frank Osterfeld Dec 01 '19 at 09:55
@FrankOsterfeld My question is whether it gets destroyed *properly*, by calling the destructor. – Jamin Grey Dec 04 '19 at 18:49

Does QVariant call a destructor on the contained class?

0 Answers0