[Development] parented_ptr

[Marc Mutz]

On 29.10.25 16:27, André Somers via Development wrote:
>> · Add a QObject::addChild(std::unique_ptr child)
> 
> Start simple, I would suggest. Do you really think that this will bring 
> a lot of value?

Every function that transfers ownership as a raw pointer is worth being 
replaced by one taking/returning by unique_ptr. Let the API enforce 
ownership transfer instead of letting the reader of the code guess.

> Introduce the basic version, see how it actually impacts 
> your code base and collect feedback, and then see if an overload like 
> this really would bring value. One problem I see is that, AFAIK, a 
> std::unique_ptr is a distinct type from a 
> std::unique_ptr, so the signature above 
> won't work. Something _like_ this can of course be done, using a 
> template and casting, but it won't be as pretty.

As you notied, std::unique_ptr implicitly converts into a 
std::unique_ptr<s> is T* implicitly converts to S*.

-- 
Marc Mutz  (he/his)
Principal Software Engineer

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