[PATCH] libstdc++: Implement P2835R7 Expose std::atomic_ref's object address

[Tomasz Kaminski]

On Wed, Oct 8, 2025 at 3:52 AM Yuao Ma <addr2line@gmail.com> wrote:

> Hi all,
>
> This patch adds support for the c++26 paper "P2835R7 Expose
> std::atomic_ref's object address", including test cases and feature
> test macro. Please take a look when you have time, thanks!
>
The patch LGTM.
It however conflicts with in-flight patch for cv ref support for atomic_ref,
after which this function would be implemented onces for
__atomic_ref_base<T const>.
Link: https://gcc.gnu.org/pipermail/libstdc++/2025-September/063680.html


> Best regards,
> Yuao
>
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