Thank you. I want to offer the same to Alisdair as well. Cheers.

On Wed, Apr 10, 2024 at 7:23 PM Arthur O'Dwyer <arthur.j.odwyer_at_[hidden]>
wrote:

> We raised the possibility that attendees (or anyone, really) could compile
> their own codebases with my implementation of P1144 and/or with Corentin's
> implementation of P2786, and see how they compare in terms of ergonomics.
> Both implementations are forks of the (Clang + libc++) monorepo.
> Instructions for building the P1144 compiler are here:
> https://quuxplusone.github.io/blog/2024/04/10/p1144-your-codebase/
>
> Besides the headline
> - Please compile your codebase with this compiler+library combo and report
> the results!
> I have several subordinate requests:
> - Please, if you know how to make this more convenient (e.g. for users of
> VS Code with Docker), give me teh codez!
> - Please tell me how to build the P2786 reference implementation!
> - Please contact me if you're interested in a short-term contract to add
> P1144 support to GCC and/or libstdc++!
>
> Thanks,
> Arthur
>
>
> On Wed, Apr 10, 2024 at 3:53 PM Michael Wong via SG14 <
> sg14_at_[hidden]> wrote:
>
>>
>>
>> On Tue, Apr 9, 2024 at 4:23 PM Michael Wong <fraggamuffin_at_[hidden]>
>> wrote:
>>
>>> Hi, this SG14 meeting will focus on Finance/Low Latency
>>>
>>> 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
>>>
>>> Or iPhone one-tap :
>>> US: +12532158782,,93151864365# or +13017158592,,93151864365#
>>> Or Telephone:
>>> Dial(for higher quality, dial a number based on your current
>>> location):
>>> US: +1 253 215 8782 or +1 301 715 8592 or +1 312 626 6799 or +1
>>> 346 248 7799 or +1 408 638 0968 or +1 646 876 9923 or +1 669 900 6833
>>> or 877 853 5247 (Toll Free)
>>> Meeting ID: 931 5186 4365
>>> Password: 789626
>>> International numbers available: https://iso.zoom.us/u/abRrVivZoD
>>>
>>> Or Skype for Business (Lync):
>>> https://iso.zoom.us/skype/93151864365
>>>
>>> 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
>>>
>> Andre Kostur, Andrew Lumsdaine, Arthur ODWyer, Ben Sherman, Cryan St.
>> Amour, Gianluca, Delfino, Jake Favold, Josh Gebara, Lauri Vasama, Matthew
>> Butler, Phil Ratzloff, Ronen Friedman, Adarsh, Michael Wong, Jens Maurer,
>> Alisdaire Meredith
>>
>>
>>>
>>> 1.2 Adopt agenda
>>>
>>> 1.3 Approve minutes from the 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
>>>
>>> 2024 planning
>>> C++23 and C++26 status
>>>
>> Tokyo F2F
>> Contracts and Microsoft feedbacks
>> P1144 on trivially relocatable
>> May 15th Mailing deadline
>>
>> - 2024-06-24 to 29: St. Louis, MO, USA
>> <https://isocpp.org/files/papers/N4966.pdf>; Bill Seymour
>> [image: ArmsSmall.jpg]
>> - 2024-11-18 to 23: Wrocław, Poland
>> <https://isocpp.org/files/papers/N4974.pdf>; Nokia
>>
>> C++26 Deadlines
>> https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2023/p1000r5.pdf
>>
>>>
>>>
>>> Future and past meeting plans
>>>
>>> * Jan 10, 2024 02:00 PM ET: Games DONE
>>> * Feb 14, 2024 02:00 PM ET: Embedded DONE
>>> * Mar 13, 2024 02:00 PM ET: Cancelled due to Tokyo 3-18-23
>>> * Apr 10, 2024 02:00 PM ET: Finance
>>> * May 8, 2024 02:00 PM ET: Games/ P3160 assigned to SG14 to discuss
>>> * June 12, 2024 02:00 PM ET: Embedded; St.louis 6-24-29
>>> * July 10, 2024 02:00 PM ET: Finance
>>> * Aug 14, 2024 02:00 PM ET: Games
>>> * Sep 11, 2024 02:00 PM ET: CPPCON Sept 15-20 so cancelled
>>> * Oct 9, 2024 02:00 PM ET: Embedded
>>> * Nov 13, 2024 02:00 PM ET: Cancelled Wroclaw F2F
>>> * Dec 11, 2024 02:00 PM ET: Finance
>>>
>>> 2.2 Paper reviews
>>> Embedded:
>>> * P3132 Accept attributes with user-defined prefixes
>>> * P3134 Attribute [[asserts_rvo]]
>>> 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 Updates
>>>
>>> Games paper review
>>>
>>> Arthur's suggestions:
>>> (1) I put in the Slack channel
>>> <https://cpplang.slack.com/archives/C3TK2M6HH/p1703947057425609> a while
>>> ago Clang PR #76596 <https://github.com/llvm/llvm-project/pull/76596>,
>>> from
>>> one Max Winkler, apparently in game dev. I don't think the PR stands much
>>> chance of getting merged into Clang; but it might still be of interest to
>>> SG14 folks. The issue description is very long and somewhat detailed, and
>>> then there's more discussion/debate in the comments
>>> <https://github.com/llvm/llvm-project/pull/76596#issuecomment-1872601156
>>> >.
>>> (I'd actually be interested in talking to Max, but he doesn't publish his
>>> email address on GitHub and I guess that might be on purpose.)
>>>
>>> (2) LEWG will be seeing my P3055 "Relax wording to permit relocation
>>> optimizations in the STL"
>>> <https://quuxplusone.github.io/draft/d3055-relocation.html> in a
>>> telecon on
>>> February 20th. (Related blog post.
>>> <https://quuxplusone.github.io/blog/2024/01/02/bsl-vector-erase/>) Might
>>> be interesting to folks who do EASTL-style containers. I'd be interested
>>> in
>>> early feedback and/or telecon attendance.
>>>
>>>
>>> Discussion on Embedded:
>>> Paul's suggestions
>>> The next meeting would then be Embedded and I would be interested in
>>> knowing if people think a module std.freestanding is worth pursuing.
>>> In that context I'd like to get some feedback perhaps already for the
>>> upcoming meeting, if people have started using modules, and if so if it
>>> has
>>> brought the promised expectations or if you are holding back if you see
>>> any
>>> relevance in modules.
>>>
>>> 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
>>>
>>>
>>> Who is in FInance
>>
>> Please will someone stand to be Finance SIG chair?
>>
>> Bryan St. Amour (Maystreet) ultra low latency, market feed, data handler,
>> high frequency, banks
>>
>> -data capture side, network, packets, 0 allocation, without dropping to a
>> lower language
>>
>> -cant do heap allocation, runtime eh is not fine
>>
>> Nathan Owen(Maystreet) - embedded but now Finace
>>
>> Ben Sherman (Chicago Trading) - market maker
>>
>> -compile time evaluation, value semantics, type manip,
>>
>> -strggle in type with iteration, transformation in constexpr values
>>
>> Jake Fevold (Bloomberg) - finance media company
>>
>> -contracts
>>
>> -safety
>>
>> Alisdair Meredith
>>
>> -allocators, control memory location, low latency
>>
>> Gianluca Delfino (maystreet)
>>
>> - MS before, trivially relocatable object, reinterpret cast, in-place
>> vectors to know allocation, cache locality
>>
>> -security (not on networks), memory/resource/dangling type of safety,
>> allocation, memory, locality, network facility, lifetimes
>>
>> Josh Gebara (Bloomberg) - allocators, safety
>>
>> Is there any grassroot movement to Rust? No from Maystreet. Concerned the
>> RUST hype vs C++ viability and investment. May be offer a C++ solutions to
>> memory safe RUST
>>
>>
>>
>>>
>>>
>>>
>>> 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>
>>>
>>>
>>>
>>>
>>>
>>> 2.2.1 any other proposal for reviews?
>>>
>>>
>>>
>>> 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: Robin Rowe, 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
>>>
>> Relocation: What is a trivially relocatable type
>> Asking SG14 to provide feedback on both proposals usefulness. Links to be
>> sent after the call
>> P1144 Arthur
>> https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2024/p1144r10.html
>> uninitialized_copy expected to get a memcpy, have a continguous range,
>> but it is not
>> if there are special functions, it is not copy constructible then you
>> have to do an actual copy constructor in a loop
>> types that are trivially relocatable, on the object same as on the value,
>> can relocate existing objects
>> e.g. of these types are vector, unique_ptr,
>>
>> can now have a Span of objects, when number is the same, then I can move
>> the objects around, copy/rotate/swap/permute, fastere because it is memove,
>> smaller , more eh safe,
>> in EWGI in Kona straw poll had no consensus
>> top down design
>> https://godbolt.org/z/o7jMo4E7e is the godbolt I was showing, btw
>>
>> https://quuxplusone.github.io/blog/2018/07/13/trivially-copyable-corner-cases/
>> Is this useful for this feature?
>>
>> P2786 Alisdair
>> Bottom up
>> https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2024/p2786r4.pdf
>> volatile that is relocatble makes sense? nothing that makes it impossible
>> in core lang, volatile int is trivially copyable,
>> but there are different types where it is under 1144,and under 2786
>> protection aginst your members, like third party, or Boost
>> this one prefers to trust the user
>> AO: what does that one function do? yes there is a semantic difference:
>> trust what they read, constraint their types reasons they dont want their
>> types to to be relocatable
>> IN EWG in Tokyo, 16/2 forward to core, one open question to resolve the
>> vexing parse
>> presented to LEWG, ok with the type traits, is it a building block?
>> this is a compiler feature with small library
>> have clang branch
>>
>> can this solve their problem in this space?
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>>
>>> 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
>>>
>>>
>>> * Jan 10, 2024 02:00 PM ET: Games DONE
>>> * Feb 14, 2024 02:00 PM ET: Embedded DONE
>>> * Mar 13, 2024 02:00 PM ET: Cancelled due to Tokyo 3-18-23
>>> * Apr 10, 2024 02:00 PM ET: Finance
>>> * May 8, 2024 02:00 PM ET: Games
>>> * June 12, 2024 02:00 PM ET: Embedded; St.louis 6-24-29
>>> * July 10, 2024 02:00 PM ET: Finance
>>> * Aug 14, 2024 02:00 PM ET: Games
>>> * Sep 11, 2024 02:00 PM ET: CPPCON Sept 15-20 so cancelled
>>> * Oct 9, 2024 02:00 PM ET: Embedded
>>> * Nov 13, 2024 02:00 PM ET: Cancelled Wroclaw F2F
>>> * Dec 11, 2024 02:00 PM ET: Finance
>>>
>> _______________________________________________
>> SG14 mailing list
>> SG14_at_[hidden]
>> https://lists.isocpp.org/mailman/listinfo.cgi/sg14
>>
>