[PATCH] libstdc++: implement P3044R2 - sub-string_view from string

[Yuao Ma]

On Fri, Nov 21, 2025 at 6:32 PM Tomasz Kaminski <tkaminsk@redhat.com> wrote:
>
> There was a paper submitted before Kona: p3862r0 Postpone basic_string::subview and wait for cstring_view [1],
> that according to github papers status [2] have also NB comment. I was not able to locale the comment thou.
> So maybe it would be good to have this as patch series for string_view (that would contain feature test macro) and then string,
> so we can revert later?
>
>
> [1] https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2025/p3862r0.html#
> [2] https://github.com/cplusplus/papers/issues/2466
>

Thanks for the info! Could you elaborate more on how making this a
patch series helps with reverting? My understanding of P3862R0 is that
it proposed two wording options: one to entirely remove the subview
for string and string_view, and the other to remove the default
parameter argument.