libstdc++: Implement C++29 P3793R2 - Better shifting (except simd)

[Yuao Ma]

On Mon, Aug 31, 2026 at 11:38 PM Jakub Jelinek <jakub@redhat.com> wrote:
>
> On Mon, Aug 31, 2026 at 11:17:58PM +0800, Yuao Ma wrote:
> > On Mon, Aug 31, 2026 at 10:54 PM Jakub Jelinek <jakub@redhat.com> wrote:
> > >
> > > Hi!
> > >
> > > The following patch implements the <bit> part of
> > > C++29 P3793R2 - Better shifting
> > > paper.
> > >
> >
> > Thanks for working on this! Actually I'm working on it too following
> > your suggestion. You beat me to it : )
>
> Sorry.
> Not working on the other paper though.
>

No problem! I learned a lot from your patch, especially the extensive
test cases!