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Re: [std-proposals] Rust vs C/C++ vs C++ Superset

From: Phil Bouchard <boost_at_[hidden]>
Date: Tue, 27 Sep 2022 13:24:49 -0400
On 9/27/22 13:08, Sebastian Wittmeier via Std-Proposals wrote:
> AW: [std-proposals] Rust vs C/C++ vs C++ Superset
> Hi Phil,
> so you want metaprogramming facilities to autogenerate code.
> The current direction is to first get static Reflection integrated
> into the standard and build metaprogramming facilities from there.
> This is a huge topic and is planned to be finished 2029+++
> Do you know those papers:
> P1240R2: Scalable reflection in C++
> https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2022/p1240r2.pdf
> P2320R0: The Syntax of Static Reflection
> https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2021/p2320r0.pdf
> P2237R0: Metaprogramming
> https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2020/p2237r0.pdf
> If you have specific feedback for the current direction of reflection
> or involve yourself to help resolve all the issues and bring e.g.
> Static Reflection to C++26 and Metaprogramming to C++32, you should
> read deeper those and related papers and then write to the authors.
> C++ will get a thought-out general solution for metaprogramming, not a
> quick-fix. This will take some time.
Ok thank you very much for this valuable information!

> In the meantime, there are smartpointers in the standard library and
> external libraries, and code preprocessors and memory checkers, which
> bind themselves to a program or within the Standard Libraries.
Yeah I know about the Clang memory checker / profiler but I want these
problems to be fixed implicitly, at compile-time and in a standard way.

> Best,
> Sebastian
> PS
> There was a talk on Cppcon by Andrei Alexandrescu: Reflection in C++,
> where he talks about current and future generic programming.
> https://cppcon.digital-medium.co.uk/session/2022/reflection-in-c/
> It currently probably is not available free of charge yet, but for an
> online conference pass.
Ok so he's back into C++, I thought he was working on some new "D"
language. David Abrahams is also back into the C++ world but he needs to
catch up I think.

> -----Ursprüngliche Nachricht-----
> *Von:* Phil Bouchard <boost_at_[hidden]>
> *Gesendet:* Di 27.09.2022 18:21
> *Betreff:* Re: [std-proposals] Rust vs C/C++ vs C++ Superset
> *An:* std-proposals_at_[hidden];
> What I would like to integrate into the C++ standards first and
> foremost is a framework to allow implicit addition of class
> members, parameters, and scope instances, just like what the C++
> Superset source-to-source compiler is doing right now.
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Received on 2022-09-27 17:24:51