[Development] C++20 ctor-level [[nodiscard]] (was: Re: C++20 @ Qt)

[Marc Mutz]

Hi,

I've tried to summarize this thread, using my own observation on 
existing use of [[nodiscard]] to fill in C++17 uses, in 
https://codereview.qt-project.org/c/meta/quips/+/486201

Let's discuss exact wording over in the Gerrit change and come back to 
the ML for more fundamental questions, if any.

Thanks,
Marc

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Marc Mutz <marc.mutz at qt.io>
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