[Development] QVariant and types with throwing dtors

[Marc Mutz]

On 26.08.24 11:08, Giuseppe D'Angelo via Development wrote:
> Il 26/08/24 07:24, Marc Mutz via Development ha scritto:
>> IMHO, (1) is not an acceptable option. Us C++ professionals having 
>> identified
>> this problem after years of it lying dormant, it behooves us, at the
>> very least, to educate our users about this, e.g. by adding docs, and
>> maybe a qWarning() in ~QVariant(), if we don't do (2).
> 
> For clarity, what is "this problem" that are you referring to? Throwing 
> destructors? Using types with throwing destructors in containers?

 From Fabian's thread starter:

> QVariant. Even though it's own destructor is noexcept, it doesn't reject types whose destructor is potentially throwing.

Dtor of payload throwing in noexcept ~QVariant -> std::terminate.

-- 
Marc Mutz <marc.mutz at qt.io> (he/his)
Principal Software Engineer

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