C++ - Reddit

Why committee doesn't decide on a package format?

Why pkgconf or cmake package or CPS isn't officially endorsed by the committee?

Can't cmake or meson guys, who go to meetings and conferences pressure the higher ups to get something accepted?

Multiple build systems are ok, multiple package formats are not. Why no one solves this issue?

https://redd.it/1sgkyog
@r_cpp

Managing Versions Programmatically with LibGit2
https://www.youtube.com/watch?v=Vrc95KdNHHA

https://redd.it/1sgsi0g
@r_cpp

Orbit - a fast lock-free MPMC queue in C++20

Orbit is a single-header lock-free MPMC bounded queue, designed from first principles and tuned to get the most out of modern hardware. In my benchmarks, it consistently outperforms other implementations like atomic_queue, moodycamel::concurrent_queue or xenium::ramalhete_queue on both x86 and ARM, often by a significant margin.

## Key features

- Cross-platform: Support for x86/ARM, GCC/Clang/MSVC
- Supports any default-constructible type, not just atomics, with move semantics for non-trivially-copyable types
- Configurable to optimise for either latency or throughput
- Simple and versatile interface
- Easily tunable spin pause lengths for different platforms

I wrote a technical blog post covering the implementation details and optimisation process if you are interested.

https://redd.it/1sfqu2h
@r_cpp

Jumpstart to C++ in Audio C++ Online 2026 Workshop
https://cpponline.uk/workshop/jumpstart-to-cpp-in-audio/

https://redd.it/1sgn5sb
@r_cpp

beast2 networking & std::execution

I was looking for a new networking layer foundation for a few of my projects, stumbled on beast2 library which looks brand new, based on C++20 coroutines. I used boost.beast in the past which was great. Here's the link https://github.com/cppalliance/beast2. I also considered std::execution since it seems to be the way to go forward, accepted in C++26.

Now, what got me wondering is this paragraph

>The C++26 std::execution API offers a different model, designed to support heterogenous computing. Our research indicates it optimizes for the wrong constraints: TCP servers don't run on GPUs. Networking demands zero-allocation steady-state, type erasure without indirection, and ABI stability across (e.g.) SSL implementations. C++26 delivers things that networking doesn't need, and none of the things that networking does need.

Now I'm lost a bit, does that mean std::execution is not the way to go for networking? Does anyone have any insights on cppalliance research on the matter?

https://redd.it/1sgjube
@r_cpp

0xd34df00d/you-dont-know-cpp: and neither do I
https://github.com/0xd34df00d/you-dont-know-cpp

https://redd.it/1sgf6tx
@r_cpp

std::core_dump - The Newsletter of Boost and the C++ Alliance - April 2026
https://dl.cpp.al/newsletters/boost-newsletter-2026-04.pdf

https://redd.it/1sfzsr8
@r_cpp

Hashing in C++26
https://blog.infotraining.pl/hashing-in-cpp-26

https://redd.it/1sfmsm9
@r_cpp

Inside Boost.Container: comparing different deque implementations

I put together a comparison of std::deque internals across libc++, libstdc++, MSVC STL, and boost::container::deque (Boost 1.90). The article looks at the internal data structures, member layouts, sizeof(deque), and includes some benchmarks on common operations.

Boost 1.90 shipped a complete rewrite of its deque — the old SGI-derived layout was replaced with a more compact design (32 bytes vs the previous 80). The article digs into what changed, how the new implementation compares to the three standard library implementations, and how much block size alone affects performance across all of them.

https://boostedcpp.net/2026/03/30/deque/

https://redd.it/1sf210b
@r_cpp

have discounted the following workshops by 50% to now be 150/$200/€175
1. **From Hello World to Real World - A Hands-On C++ Journey from Beginner to Advanced** \- Amir Kirsh - 1 day online workshop available on *Thursday 21st April 09:00 - 17:00 UTC -* [https://cpponline.uk/workshop/from-hello-world-to-real-world/](https://cpponline.uk/workshop/from-hello-world-to-real-world/)
2. **Jumpstart to C++ in Audio - Learn Audio Programming & Create Your Own Music Plugin/App with the JUCE C++ Framework** \- Jan Wilczek - 1 day online workshop available on both Tuesday 14th April 13:00 - 20:00 UTC & Tuesday 28th April 07:00 - 14:00 UTC - [https://cpponline.uk/workshop/jumpstart-to-cpp-in-audio/](https://cpponline.uk/workshop/jumpstart-to-cpp-in-audio/)
* **(NEW) C++Now Full Schedule Announced** \- C++Now have announced their full schedule which includes 50 talks across the five days. View the full schedule at [https://schedule.cppnow.org](https://schedule.cppnow.org)
* **(NEW) C++Now Final Keynote Announced** \- C++Now have announced the following keynote which is **Benchmarking – It’s About Time** by Matt Godbolt - [https://cppnow.org/announcements/2026/03/cppnow-keynote-benchmarking/](https://cppnow.org/announcements/2026/03/cppnow-keynote-benchmarking/)
* **(NEW) ACCU On Sea Schedule Announced** \- The ACCU on Sea schedule has been announced and includes over 60 sessions across the four days. Visit [https://accuonsea.uk/schedule/](https://accuonsea.uk/schedule/) for the full schedule.
* **(NEW) CppCon Call For Authors Now Open!** \- CppCon are looking for book authors who want to engage with potential reviewers and readers. Read the full announcement at [https://cppcon.org/call-for-author-2026/](https://cppcon.org/call-for-author-2026/) 
* **(NEW) Meeting C++ 2026 Announced** \- Meeting C++ will take place on the 26th - 28th November and will be hybrid. Visit [https://meetingcpp.com/meetingcpp/news/items/Announcing-Meeting-Cpp-2026-.html](https://meetingcpp.com/meetingcpp/news/items/Announcing-Meeting-Cpp-2026-.html) to find out more
* **CppCon Registration Now Open** \- You can now buy early bird tickets until June 26th at [https://cppcon.org/registration/](https://cppcon.org/registration/)
* **CppCon Academy Classes Announced** \- CppCon have announced 16 classes/workshops which will take place either before or after the main conference. You can view the full list of classes available at [https://cppcon.org/cppcon-academy-2026/](https://cppcon.org/cppcon-academy-2026/)
* **Hudson River Trading Scholarship Annouced For CppCon 2026** \- CppCon have announced a new scholarship program that will provide scholarships that cover lodging, travel, food, and conference registration for twenty to twenty-five students for this year's CppCon. Find out more including how to apply at [https://cppcon.org/announce-scholarship-2026/](https://cppcon.org/announce-scholarship-2026/)
* **C++Online Workshops Announced** \- C++Online have announced 14 workshops that will take place between the end of March and the start of June with more potentially being added if any workshops are oversubscribed. Find out more including the workshops that are available at [https://cpponline.uk/workshop-tickets-for-cpponline-2026-now-available/](https://cpponline.uk/workshop-tickets-for-cpponline-2026-now-available/)

https://redd.it/1sezs6b
@r_cpp

[https://cpponline.uk/workshop/safe-cpp/](https://cpponline.uk/workshop/safe-cpp/)
6. **Safe and Efficient C++ for Embedded Environments** \- Andreas Fertig - 1 day online workshop available on *Tuesday 12th May 09:00 - 17:00 UTC* \- [https://cpponline.uk/workshop/safe-and-efficient-cpp-for-embedded-environments/](https://cpponline.uk/workshop/safe-and-efficient-cpp-for-embedded-environments/)
7. **Mastering std::execution (Senders/Receivers)** \- Mateusz Pusz - 1 day online workshop available on *Friday 15th May 09:00 - 17:00 UTC* \- [https://cpponline.uk/workshop/mastering-stdexecution-senders-receivers/](https://cpponline.uk/workshop/mastering-stdexecution-senders-receivers/)
8. **How C++ Actually Works - Hands-On With Compilation, Memory, and Runtime** \- Assaf Tzur-El - One day online workshop that runs over two days on *May 18th - May 19th 16:00 - 20:00 UTC* \- [https://cpponline.uk/workshop/how-cpp-actually-works/](https://cpponline.uk/workshop/how-cpp-actually-works/)
9. **AI++ 101 - Build an AI Coding Assistant in C++** \- Jody Hagins - 1 day online workshop available on *Friday 22nd May 09:00 - 17:00 UTC* \- [https://cpponline.uk/workshop/ai-101/](https://cpponline.uk/workshop/ai-101/)

**C++Online One Day Beginner Workshops** \- **Reduced from £345 to £150/$200/€175** (£90/$120/€105 for students)

1. **Jumpstart to C++ in Audio - Learn Audio Programming & Create Your Own Music Plugin/App with the JUCE C++ Framework** \- Jan Wilczek - 1 day online workshop available on both Tuesday 14th April 13:00 - 20:00 UTC & Tuesday 28th April 07:00 - 14:00 UTC - [https://cpponline.uk/workshop/jumpstart-to-cpp-in-audio/](https://cpponline.uk/workshop/jumpstart-to-cpp-in-audio/)
2. **From Hello World to Real World - A Hands-On C++ Journey from Beginner to Advanced** \- Amir Kirsh - 1 day online workshop available on *Thursday 21st May 08:30 - 16:30 UTC -* [https://cpponline.uk/workshop/from-hello-world-to-real-world/](https://cpponline.uk/workshop/from-hello-world-to-real-world/)

**C++Online Half Day Workshops** \- £172.50/$230/€200 (£45/$60/€55 for students)

1. **Stop Thinking Like a Junior** **- The Soft Skills That Make You Senior** \- Sandor Dargo - Half Day online workshop available on *Friday 10th April 13:00 - 16:30 UTC* & *Friday 8th May 20:00 - 23:30 UTC* \- [https://cpponline.uk/workshop/stop-thinking-like-a-junior/](https://cpponline.uk/workshop/stop-thinking-like-a-junior/)
2. **Splice & Dice - A Field Guide to C++26 Static Reflection** \- Koen Samyn - Half Day online workshop available on *Monday 25th May 09:00 - 12:30 UTC* \- [https://cpponline.uk/workshop/splice-and-dice/](https://cpponline.uk/workshop/splice-and-dice/)

**C++Online Two Day Workshops** \- £690/$920/€800 (£180/$240/€210 for students)

1. **AI++ 201 - Build a Matching Engine with Claude Code** \- Jody Hagins - 2 day online workshop available on *April 20th - April 21st 13:00 - 21:00 UTC & May 28th - May 29th 09:00 - 17:00 UTC* \- [https://cpponline.uk/workshop/ai-201/](https://cpponline.uk/workshop/ai-201/)

Eleven of these workshops had previews at the main C++Online Conference which took place on the 11th - 13th March. You can watch these preview sessions here: [https://www.youtube.com/playlist?list=PLHG0uo5c6V3KIeoLqvBbIqy5AXt\_Me\_cm](https://www.youtube.com/playlist?list=PLHG0uo5c6V3KIeoLqvBbIqy5AXt_Me_cm)

**Anyone who purchased a C++Online Main Conference ticket can also get a discount of however much they paid to attend the main conference.** 

Also if anyone is from a lower-income background or live in a country where purchasing power is limited, then it is recommended to reach out to C++Online on [info@cpponline.uk](mailto:info@cpponline.uk) as they will be able to give you a discount.

**OTHER NEWS**

* **(NEW) C++Online Keynote Released** \- C++Online have released the first of their keynotes on YouTube! New videos will be released each week so subscribe to the YouTube channel here [https://www.youtube.com/@CppOnline/videos](https://www.youtube.com/@CppOnline/videos)
* **(NEW) C++Online Beginner Workshops Discounted** \- C++Online

Latest News From Upcoming C++ Conferences (2026-04-07)

This is the latest news from upcoming C++ Conferences. You can review all of the news at [https://programmingarchive.com/upcoming-conference-news/](https://programmingarchive.com/upcoming-conference-news/)

**TICKETS AVAILABLE TO PURCHASE**

The following conferences currently have tickets available to purchase

* **C++Now (4th - 8th May)** \- Regular tickets available to purchase at [https://cppnow.org/registration/](https://cppnow.org/registration/)
* **CppNorth/NDC Toronto (5th - 8th May)** \- Tickets are open and can be purchased at [https://ndctoronto.com/tickets](https://ndctoronto.com/tickets)
* **ACCU on Sea (15th - 20th June)** \- You can buy early bird tickets at [https://accuonsea.uk/tickets/](https://accuonsea.uk/tickets/) with discounts available for ACCU members.
* **CppCon (12th - 18th September)** \- You can buy early bird tickets until June 26th at [https://cppcon.org/registration/](https://cppcon.org/registration/)
* **Meeting C++ (NEW - 26th - 28th November)** \- You can buy early bird tickets at [https://meetingcpp.com/2026/](https://meetingcpp.com/2026/)

**OPEN CALL FOR SPEAKERS**

There are currently no open calls.

**OTHER OPEN CALLS**

There are currently no open calls.

**TRAINING COURSES AVAILABLE FOR PURCHASE**

Conferences are offering the following training courses:

**LAST CHANCE TO REGISTER**

1. **Performance and Safety in C++ Crash Course** \- Jason Turner - 1 day online workshop available on *Thursday 9th April 12:00 - 20:00 UTC -* [https://cpponline.uk/workshop/performance-and-safety-in-cpp-crash-course/](https://cpponline.uk/workshop/performance-and-safety-in-cpp-crash-course/) \- £345/$460/€400 (£90/$120/€105 for students)
2. **Stop Thinking Like a Junior** **- The Soft Skills That Make You Senior** \- Sandor Dargo - Half Day online workshop available on *Friday 10th April 13:00 - 16:30 UTC* \- [https://cpponline.uk/workshop/stop-thinking-like-a-junior/](https://cpponline.uk/workshop/stop-thinking-like-a-junior/) \- £172.50/$230/€200 (£45/$60/€55 for students)
3. **Jumpstart to C++ in Audio - Learn Audio Programming & Create Your Own Music Plugin/App with the JUCE C++ Framework** \- Jan Wilczek - 1 day online workshop available on both Tuesday 14th April 13:00 - 20:00 UTC - [https://cpponline.uk/workshop/jumpstart-to-cpp-in-audio/](https://cpponline.uk/workshop/jumpstart-to-cpp-in-audio/) \- £150/$200/€175 (£90/$120/€105 for students)
4. **Essential GDB and Linux System Tools** \- Mike Shah - 1 day online workshop available on *Friday 17th April 13:00 - 21:00 UTC* \- [https://cpponline.uk/workshop/essential-gdb-and-linux-system-tools/](https://cpponline.uk/workshop/essential-gdb-and-linux-system-tools/) \- £345/$460/€400 (£90/$120/€105 for students)

**C++Online One Day Workshops** \- £345/$460/€400 (£90/$120/€105 for students)

1. **Performance and Safety in C++ Crash Course** \- Jason Turner - 1 day online workshop available on *Thursday 9th April 12:00 - 20:00 UTC -* [https://cpponline.uk/workshop/performance-and-safety-in-cpp-crash-course/](https://cpponline.uk/workshop/performance-and-safety-in-cpp-crash-course/)
2. **Essential GDB and Linux System Tools** \- Mike Shah - 1 day online workshop available on *Friday 17th April 13:00 - 21:00 UTC* \- [https://cpponline.uk/workshop/essential-gdb-and-linux-system-tools/](https://cpponline.uk/workshop/essential-gdb-and-linux-system-tools/)
3. **Concurrency Tools in the C++ Standard Library** \- Mateusz Pusz - 1 day online workshop available on *Friday 24th April 09:00 - 17:00 UTC* \- [https://cpponline.uk/workshop/concurrency-tools-in-the-cpp-standard-library/](https://cpponline.uk/workshop/concurrency-tools-in-the-cpp-standard-library/)
4. **C++ Software Design** \- Klaus Iglberger - 1 day online workshop available on *Thursday 30th April 09:00 - 17:00 UTC* \- [https://cpponline.uk/workshop/cpp-software-design/](https://cpponline.uk/workshop/cpp-software-design/)
5. **Safe C++** \- Klaus Iglberger - 1 day online workshop available on *Friday 1st May 09:00 - 17:00 UTC* \-

C++ History Collection: Software Preservation Group
https://softwarepreservation.computerhistory.org/c_plus_plus/

https://redd.it/1seulk2
@r_cpp

How to achieve P90 sub-microsecond latency in a C++ FIX engine
https://akinocal1.substack.com/p/how-to-achieve-p90-sub-microsecond

https://redd.it/1setack
@r_cpp

Range-Validated Quantity Points - mp-units
https://mpusz.github.io/mp-units/latest/blog/2026/04/06/range-validated-quantity-points/

https://redd.it/1ses50n
@r_cpp

Future of Boost.Graph Workshop, Paris, France, May 6th 2026

Dear C++ and Graph community,

We are working towards the revitalizing of the Boost.Graph library and we would like to reconnect with our user base. To this end, I organize a small workshop in Paris on May 6th 2026, 09h-18h.

The goal is to bring together a small group (10-15 people) of researchers, open-source implementers, and industrial users for a day of honest conversation. If you have used Boost.Graph or another C++ graph library in production/research, you should feel invited and welcome. Three questions will anchor the discussions:

1. What types of graphs and data structures do you use in practice?
2. What performance, scalability, and interpretability requirements matter most to you?
3. What algorithms are missing today that Boost.Graph could offer?

And of course expect loooong discussions about API ergonomics and documentation ;)

The format is a mix of short lightning talks in the morning and structured discussions in the afternoon, ending with a concrete prioritized roadmap.

I opened a Github Discussion to allow the community to reach us, even if not able to attend, so please feel free to chime in with your ideas, suggestions, complaints and wish-list: https://github.com/boostorg/graph/discussions/466

If you can not attend because you are far away, please show yourself: remote attendance is possible and I plan to organize similar events in different cities/countries in the future to allow for in-person presence <3

Thanks again,

https://redd.it/1seq6qq
@r_cpp

The "macro overloading" idiom – Arthur O'Dwyer
https://quuxplusone.github.io/blog/2026/04/02/macro-overloading/

https://redd.it/1sep7sx
@r_cpp

Introducing Sparrow-IPC: A modern C++ implementation of Arrow IPC
https://medium.com/@QuantStack/introducing-sparrow-ipc-modern-c-20-arrow-ipc-e1690ae82b81

https://redd.it/1sep4x9
@r_cpp

CppCast: Building a Compiler Inside the C++ Compiler with Daniel Nikpayuk
https://cppcast.com/a_compiler_insider_the_compiler_with_daniel_nikpayuk/

https://redd.it/1semv0w
@r_cpp

Can your AI rewrite your code in assembly?
https://lemire.me/blog/2026/04/05/can-your-ai-rewrite-your-code-in-assembly/

https://redd.it/1seg06h
@r_cpp