Hi!

Sorry for the horrible microphone. I forgot my headphones at home, and my laptop's mic is just awful.

P2966R0 will be presented at CppCon on Monday morning by yours truly, and again (to a hopefully enthusiastic audience, and more informally) at the SG14/SG19 meeting happening concurrently with CppCon.

I will gather authors and co-authors for the various ideas presented in P2966 (those that people are interested in exploring or pushing, at least) and will publish R1, R2, ... of that paper over time to show how things progress.

Cheers!

Le mer. 13 sept. 2023 à 14:37, Michael Wong via SG14 <sg14@lists.isocpp.org> a écrit :


On Tue, Sep 12, 2023 at 1:59 PM Michael Wong <fraggamuffin@gmail.com> wrote:
Topic: SG14 Monthly This meeting is focused on Games and we can continue with the Games paper that
was started in January, depending on what other papers or topics are of
interest.

We will also be announcing a new finance Subgroup chair. Thank you.

Hi,

Michael Wong is inviting you to a scheduled Zoom meeting.

Topic: SG14 monthly
Time: 2nd Wednesdays 02:00 PM Eastern Time (US and Canada)
    Every month on the Second Wed,

Join from PC, Mac, Linux, iOS or Android:
https://iso.zoom.us/j/93151864365?pwd=aDhOcDNWd2NWdTJuT1loeXpKbTcydz09
    Password: 789626

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 or 877 853 5247 (Toll Free)
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Agenda:

1. Opening and introduction

ISO Code of Conduct
<
https://isotc.iso.org/livelink/livelink?func=ll&objId=20882226&objAction=Open&nexturl=%2Flivelink%2Flivelink%3Ffunc%3Dll%26objId%3D20158641%26objAction%3Dbrowse%26viewType%3D1
*>*

ISO patent policy.
https://isotc.iso.org/livelink/livelink/fetch/2000/2122/3770791/Common_Policy.htm?nodeid=6344764&vernum=-2

IEC Code of Conduct:

https://www.iec.ch/basecamp/iec-code-conduct-technical-work

WG21 Code of Conduct:

https://isocpp.org/std/standing-documents/sd-4-wg21-practices-and-procedures

1.1 Roll call of participants,
Brett, Jake Fevold, Jacob L , Jens, Patrice, Rene Riviera,  Robin, Michael


1.2 Adopt agenda

1.3 Approve minutes from previous meeting, and approve publishing
 previously approved minutes to ISOCPP.org

1.4 Action items from previous meetings

2. Main issues (125 min)

2.1 General logistics

CPPCON planning
Call for paper 
Patrice's Games paper P2966R0

Finance SG chair Robin Rowe, Boost Inciits


C++23 and C++26 status

Future and past meeting plans

*Mar 8, 2023 02:00 PM ET: Embedded
*Apr 12, 2023 02:00 PM ET: Cancelled
* May 10, 2023 02:00 PM ET: Cancelled
* June 14, 2023 02:00 PM ET: Cancelled
* July 12, 2023 02:00 PM ET: Finance
* Aug 9, 2023 02:00 PM ET: Cancelled
* Sep 12, 2023 02:00 PM ET: Games
* Oct 1: CPPCON
* Oct 11, 2023 02:00 PM ET: Embedded
*Nov 8, 2023 02:00 PM ET: Kona F2F Cancelled
* Dec 12, 2023 02:00 PM ET: Finance 

Discussion on %S format string expectations:
https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2023/p2945r0.html
How many implementations interpret %S showing floating point/fractional seconds
Does SG14 members want to form an opinion on this, and if you care please send to Howard Hinnant
No question this is breaking backwards compatibility
Could also have casted the seconds to show only integer seconds

Specifically this C++20/23 code:

    #include <chrono>
    #include <format>
    #include <iostream>

    int
    main()
    {
        using namespace std;
        using namespace chrono;

        auto tp = sys_days{August/30/2023} + 13h + 17min + 50s + 62ms;
        cout << format(“{:%F %H:%M:%S}", tp) << '\n';
    }

Outputs:

    2023-08-30 13:17:50.062

And the LEWG voted to change the output to:

    2023-08-30 13:17:50

(dropping the millisecond precision information in the time point).
 
2.2 Paper reviews
Discussion on Embedded:
Review latest mailings:
P2532 Removing exception_ptr from the receivers concept
Based on the last meeting and the discussions here.
P2544 C++ Exceptions are becoming more and more problematic
We might want to chime in here.
/Paul
P. S. P2327 de-deprecating volatile received a "consensus" straw poll.


Discussion on Low Latency/Finance topics

http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p1839r4.pdf

Patrice's paper on games.  P2966R0
Discussed the new P paper and will review in detail at CPPCON 23
Brett also have a few papers that he might expose at CPPCON. 

P2300
Swift



Discussion about Games topics:

 P2388R1 - Minimum Contract Support: either Ignore or Check_and_abort
<http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p2388r1.html>

Patrice's WIP on Games issues.

Finance topics from July 14, 2021.

https://lists.isocpp.org/sg14/2021/06/0636.php

https://lists.isocpp.org/sg14/2021/07/0642.php

2.2.1 any other proposal for reviews?

Deterministic Exception for Embedded by James Renwick
https://www.pure.ed.ac.uk/ws/portalfiles/portal/78829292/low_cost_deterministic_C_exceptions_for_embedded_systems.pdf

Freestanding?

SG14/SG19 features/issues/defects:

https://docs.google.com/spreadsheets/d/1JnUJBO72QVURttkKr7gn0_WjP--P0vAne8JBfzbRiy0/edit#gid=0

2.3 Domain-specific discussions

2.3.1 SIG chairs

   - Embedded Programming chairs: Ben Craig, Wouter van Ooijen and Odin
 Holmes, John McFarlane

   - Financial/Trading chairs: Staffan TjernstrÃm
Carl Cooke, Neal Horlock,
   - Games chairs: Rene Riviera, Guy Davidson and Paul Hampson, Patrice Roy

   - Linear Algebra chairs: Bob Steagall, Mark Hoemmen, Guy Davidson

2.4 Other Papers and proposals

2.5 Future F2F meetings:

2.6 future C++ Standard meetings:
https://isocpp.org/std/meetings-and-participation/upcoming-meetings

-

3. Any other business
Reflector
https://lists.isocpp.org/mailman/listinfo.cgi/sg14
As well as look through papers marked "SG14" in recent standards committee
paper mailings:
http://open-std.org/jtc1/sc22/wg21/docs/papers/2015/
http://open-std.org/jtc1/sc22/wg21/docs/papers/2016/

Code and proposal Staging area
https://github.com/WG21-SG14/SG14
4. Review

4.1 Review and approve resolutions and issues [e.g., changes to SG's
working draft]

4.2 Review action items (5 min)

5. Closing process

5.1 Establish next agenda

5.2 Future meeting


*Mar 8, 2023 02:00 PM ET: Embedded
*Apr 12, 2023 02:00 PM ET: Cancelled
* May 10, 2023 02:00 PM ET: Cancelled
* June 14, 2023 02:00 PM ET: Cancelled
* July 12, 2023 02:00 PM ET: Finance
* Aug 9, 2023 02:00 PM ET: Cancelled
* Sep 12, 2023 02:00 PM ET: Games
* Oct 1: CPPCON
* Oct 10, 2023 02:00 PM ET: Embedded
*Nov 8, 2023 02:00 PM ET: Kona F2F Cancelled
* Dec 12, 2023 02:00 PM ET: Finance 
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