[Development] The future of smart pointers in Qt API

[Giuseppe D'Angelo]

On 02/02/2020 18:17, Иван Комиссаров wrote:
> No one answered my question about QObject::deleteLater:
> 
>> And what about the QObject::deleteLater() method? Any ideas how this should look like with smart pointers?

You can specify custom deleters for smart pointers. For QScopedPointer 
there's already a convenience class that does it:

> QScopedPointer<MyObject, QScopedPointerDeleteLater> ptr = ~~~;
> // ptr falls out of scope, deleteLater() is called on the pointee

Such a convenience deleter should be moved to QObject, to be honest (and 
no, it's not usable as-is with std:: smart pointers).

Note: I didn't review Daniel's proposal so I'm not sure if this would 
actually work in there.

HTH,
-- 
Giuseppe D'Angelo | giuseppe.dangelo at kdab.com | Senior Software Engineer
KDAB (France) S.A.S., a KDAB Group company
Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com
KDAB - The Qt, C++ and OpenGL Experts

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