Yeah, the link only talks about empty base class optimization, but that
happens with non empty too. It should've been called "padding optimization"
or something.

Just derive a class with trailing padding and add a member that can fit in
the padding and the padding will be reused.

Em dom., 3 de dez. de 2023 18:48, Frederick Virchanza Gotham via
Std-Proposals <std-proposals_at_[hidden]> escreveu:

> On Sun, Dec 3, 2023 at 7:20 PM Breno Guimarãeswrote:
> >
> > By the way, the no_unique_address annotation didn't bring the concept of
> overlapping objects. It already existed.
> >
> > https://en.cppreference.com/w/cpp/language/ebo
>
>
> But people haven't been memcpy'ing and memset'ing empty base classes
> for a few decades.
>
> Bringing it in for types where people would have historically been
> using 'memset' as a bulldozer for a few decades is a much bigger deal.
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