Niall, last week Jonathan Wakely asked Library Evolution if there was
interest in a proposal adding 'x' functionality to iostreams, which had
strong support. That discussion is scheduled for 2021-11-29, 8:00 to 9:30
Pacific. We can try to look at your paper at the same time, if that sounds
good?

Olivier, does SG1 need to look at this?

--
Bryce Adelstein Lelbach aka wash (he/him/his)
US Programming Language Standards (PL22) Chair
ISO C++ Library Evolution Chair
CppCon and C++Now Program Chair
HPC Programming Models Architect @ NVIDIA
--
On Tue, Oct 5, 2021, 10:03 Aaron Ballman via Lib-Ext <
lib-ext_at_[hidden]> wrote:
> On Tue, Oct 5, 2021 at 9:56 AM Niall Douglas <s_sourceforge_at_[hidden]>
> wrote:
> >
> > WG21 LEWG, WG14,
> >
> > CC: Aaron, if he could get me a WG14 paper number that would be great.
>
> I've requested the document number from the WG14 secretary.
>
> ~Aaron
>
> >
> > Please find attached a draft paper proposing improved normative wording
> > for C2x's fopen('x') and fopen('a'), which is relevant to the C++ 23 IS
> > as iostreams would replicate C2x's semantics here. The main change is to
> > require atomicity, and to remove exclusivity allowing implementations to
> > silently destroy and corrupt data.
> >
> > All implementations reviewed implement the proposed wording already if
> > they implement it at all, except atomic fopen('a') in Microsoft's UCRT
> > which does not for no good reason I can ascertain. I'd normally bug
> > Billy about this, but he's moved to vcpkg, so if a Microsoft CRT
> > maintainer could give feedback on the viability of fixing their
> > fopen('a') implementation as per the instructions in the paper that
> > would be great.
> >
> > Comments and suggestions for the draft are welcome. Note that WG14 needs
> > the final paper in the next week, so don't wait if you have something to
> > say.
> >
> > Thanks,
> > Niall
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