[Development] QProperty and library coding guide

Ulf Hermann ulf.hermann at qt.io
Fri Jul 17 10:44:16 CEST 2020

> Would it be sensible to make this a configure feature: if C++20 is explicitly enabled, use it? It’s in the standard after all.
> But auto-detecting it is perhaps unnecessarily fragile.

No, we should just static_assert for [[no_unique_address]] being 
available on the platforms where we expect it. That is, anywhere but on 
certain MSVCs.

If we make it a configure feature, we open the door to BIC problems as 
we might accidentally turn it off in some builds.


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