Like last year sharing my thoughts on that Meeting C++ 2024 is the only hybrid C++ conference.

Meeting C++ 2024: the last hybrid C++ conference?

by Jens Weller

From the article:

While I'm happy that Meeting C++ 2024 is not the last online conference, I do have once again to wonder if its the last hybrid one.

Once again I'd like to document my thoughts on running a hybrid conference, and also ask the C++ community for the support if you value such an offer being available world wide. In the end the numbers of this years conference will once again decide if I think that continueing is worth it.

Its easier to run a conference without a live stream...

Meeting C++ 2024 is just 30 days away! Come to Berlin and meet with the C++ Community and the C++ committee for 3 days!

The Schedule of Meeting C++ 2024

by Jens Weller

From the page:

Meeting C++ 2024 features 4 keynotes, 3 tracks onsite and one online track, the conference is live streamed from Berlin. All Tickets include access to the videos after the conference.

This years keynotes are Titus Winters, Hana Dusíková, Herb Sutter and Peter Sommerlad!

The PVS-Studio Team invite you to the webinar. Date: November 06, 2024, 12:00 PM UTC+1.

C++ semantics

by Yuri Minaev

Summary of the talk:

In this talk on the С++ semantics, we will take a look at symbols and name resolution. We will discuss different kinds of lookups, scope importing, overload resolution, as well as templates and their specifics. Speaker: Yuri Minaev.

A post highlighting some of the talks that let you learn about Modern C++ at Meeting C++ 2024

Learn Modern C++ at Meeting C++ 2024

by Jens Weller

From the article:

I think this is what should you get excited the most, C++20 is making its way through the compiler implementations and you actually can apply this to your own code base. The top voted talk this year reflects this, in C++ Modules - getting started today Andreas Weis will show you how Modules are now available with the big 3 compilers.

...

Trainings at Meeting C++

After Meeting C++ 2024 there is a trainings week in the last week of November, you an choose between trainings from Kevlin Henney, Slobodan Dimtrovic and Nicolai Josuttis:

    Programming with Guts by Kevlin Henney
    C++ for C Developers - Migrating from C to C++ by Slobodan Dimtrovic
    Generic programming in C++ with templates and auto by Nico Josuttis
    Concepts, Ranges, and Views - The New Way of Programming in C++ by Nico Josuttis

Meeting C++ offers free online and onsite tickets through their student and support programs. This is supported through the ticket sales for Meeting C++ 2024.

Highlighting the student and support tickets for Meeting C++ 2024

by Jens Weller

From the article:

Like every year, I'd like to point towards the programs for those that can't afford to pay for a ticket for Meeting C++ 2024.

And let me start with thanking those that enable these programs through their ticket buying: the attendees and sponsors of Meeting C++ 2024! With the schedule published, I'd like to highlight the student and support tickets for Meeting C++ 2024. For a few years now Meeting C++ has hosted programs to give students, underrepresented folks and those who can't afford a ticket access to the conference.

This year for the first time you can choose to register either for onsite or online for these programs. A limited amount of tickets for Berlin will be available, depending on the ticket sale in October. So incase you registered for onsite but are not chosen for a ticket, then you'll have a chance to an online ticket...

The last part of the program for Meeting C++ 2024 is now ready: the online track.

The online track for Meeting C++ 2024 is complete!

by Jens Weller

From the article:

With this the program for Meeting C++ 2024 is now complete! The online track features 11 talks and will be prerecorded publically in October.

The talks of the online track are:

• An Introduction to Vulkan and C++ by Michael Shah
• From C to Modern C++: Transforming the classroom and beyond by Gabriel Valenzuela
• Writing VSCode extensions for fun an profit by Nikolaj Fogh
• Python's asyncio in C++ for Terminal Graphics by Fernando Iglesias
• Mimicking SQL: API Design Choices by Jonathan O'Connor
• What is a static function, but isn't a static function? by Miloš Anđelković
• Customising clang-tidy to modernise your legacy C++ code by Mike Crowe
• Parallel Algorithms, Ranges and oneDPL by Abhilash Majumder
• An overview on the C++26 highlights by Rainer Grimm
• Starting a modern C++ Project with CMake in 2024 by Jens Weller
• A tour through the Meeting C++ community survey by Jens Weller

Meeting C++ now offers 4 trainings that align with Meeting C++ 2024, and will be held in the last week of November.

Adding C++ trainings to Meeting Cpp 2024

by Jens Weller

From the article:

Trainings listing

    C++ for C Developers - Migrating from C to C++ - a two day training by Slobodan Dmitrovic starting November 25th
    Program with GUTs - a half day training by Kevlin Henney on November 25th
    Generic programming in C++ with templates and auto - full day training by Nicolai Josuttis on November 28th
    Concepts, Ranges, and Views - The New Way of Programming in C++ - full day training by Nicolai Josuttis on November 29th

These 4 trainings focus on various important current aspects of C++. From the migration to C++ from C, which is also a great course if you migrate to Modern C++ from "C with classes" like code. Or a refresher on unit testing by Kevlin Henney himself. Nicolai Josuttis gives a two day training, which is also available as single days: on the first day generic programming with templates and auto is bringing you a referesher, while focusing on C++20 Concepts, Ranges and Views on the next day. I've made the decision that prices for trainings are now fixed, half/full day trainings are 499 € and two day trainings are 999 €, this already includes taxes and all fees from the ticketshop. Attending the trainings will let you learn great new ways to think about your code and it gives support Meeting C++!

The PVS-Studio Team invite you to the webinar. Date: October 10, 2024, 12:00 PM UTC+1.

Parsing C++

by Yuri Minaev

Summary of the talk:

In this webinar, we will discuss grammars in С++ and how they work. We will talk about different kinds of parsers and why С++ is difficult to parse. We will also share some tricks to avoid extreme slowdown. Speaker: Yuri Minaev.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

High-Performance Numerical Integration in the Age of C++26

Friday, September 20 13:30 - 14:30 MDT

by Vincent Reverdy

Summary of the talk:

Could we revisit numerical integrators in the light of C++26 and bring more genericity, performance, and expressivity to the domain? In this talk, we will explore how modern C++ techniques can add something new and relevant to one of the oldest and most basic task of scientific computing: the integration of systems of equations. We will examine, in particular, how most numerical integrators can be derived from a small set of first principles that can be easily mapped onto C++ concepts and composable algorithmic building blocks. One of the goal of the approach introduced in this presentation will be to achieve as much as possible with the simplest and smallest amount of code. C++23 and C++26 programming techniques, including reflection, will be leveraged to transfer some of the burden of implementation to the compiler while still ensuring maximum performance.

In practice, the talk will combine aspects of high-performance computing, numerical methods, and software architecture. We will start by summarizing recent discoveries made in applied mathematics on Runge-Kutta methods, linear multistep methods, and general linear methods to see how it can help design better abstractions that can be translated into C++ concepts. We will then examine how a few carefully crafted algorithmic building blocks can be combined to generate the whole diversity of numerical integrators from first principles. The automation of this approach using C++23 and C++26's reflection to make the compiler generate highly efficient code will be then discussed in great length. Next, we will dive into parallelization strategies, including distributed ones as well as heterogenous computing. Some perspectives will also be given on the possibility for the compiler to branch on the best integrator given the mathematical properties of a system of equations as well as ways to derive new integrators at compile-time.

To illustrate our approach, we will examine the behavior and performance of numerous integrators on several real-world problems including a supercomputing N-body code for cosmology that simulates the gravitational dynamics of large scale astrophysical structures in an expanding Universe. A great care will be taken to make all the code and examples as reproducible and standalone as possible so that most of the presented content can simply be copied and pasted to make it work everywhere. Finally, even if the talk will focus on the particular case of numerical integration, the methodology presented in this talk will be applicable everywhere in scientific computing and beyond to achieve better software architecture in technical contexts.

Vincent Reverdy is a Full Researcher in Computer Science and Astrophysics at French Center for Scientific Research (CRNS) and located at the Annecy Laboratory for Particle Physics (LAPP) in the French Alps. He also is a member of the French delegation to the C++ Standards Committee. After a PhD at the Paris Observatory in 2014 on the topic of numerical cosmology and general relativity for which he explored extensively advanced metaprogramming techniques, he joined the University of Illinois at Urbana-Champaign in the US. There, he led an interdisciplinary research group in both computer science and computational astrophysics, trying to bridge the gap between programming languages and computational sciences. In late 2019 he moved back to France to continue to work on software architecture aspects related to astrophysics, and joined CNRS in January 2022 to lead long-term research aiming at building bridges between theoretical computer science including type theory and category theory on one side, and computational sciences with a focus on numerical astrophysics on the other side. Finally, as a member of the C++ committee, he has been working extensively on low-level programming components, including bit manipulation, as well as mathematical abstractions.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Contracts for C++

Wednesday, September 18 14:00 - 15:00 MDT

by Timur Doumler

Summary of the talk:

Design by Contract is a very effective approach for writing safer, more correct programs. It has been successfully implemented in programming languages like Eiffel and Ada. Attempts to add a Contracts facility to C++ have a long and storied history spanning two decades. Since the last attempt to standardise Contracts (for the C++20 Standard) has failed, SG21 — the Contracts Study Group on the C++ Standard Committee – has been working on a new design, the so-called Contracts MVP, which is now essentially feature-complete and on track to make it into the upcoming C++26 Standard.

In this talk, we present the current design of the Contracts MVP targeting C++26. We discuss preconditions, postconditions, assertions, contract-violation handling and much more. We consider how the Contracts MVP provides a superior replacement for custom assertion macros and, when used correctly, can significantly improve the safety and correctness of your code.

Timur Doumler is the co-host of CppCast and an active member of the ISO C++ standard committee, where he is currently co-chair of SG21, the Contracts study group. Timur started his journey into C++ in computational astrophysics, where he was working on cosmological simulations. He then moved into the audio and music technology industry, where he has been working for over a decade and co-founded the music tech startup Cradle. In the past, Timur also worked for JetBrains, first as a developer on CLion's C++ parser and later as a Developer Advocate for C++ developer tools. Currently, Timur lives in Finland, where he is organising the monthly C++ Helsinki meetup. Timur is passionate about clean code, good tools, low latency, and the evolution of the C++ language.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Data Structures That Make Video Games Go Round

Friday, September 20 14:45 - 15:45 MDT

by Al-Afiq Yeong

Summary of the talk:

Modern video games are complex beasts that contains multiple systems interacting with one another storing, transferring and processing large sets of data in real time. While some data structures from the standard library such as the std::vector gets you by 90% of the time you need to store and process data, there will be the occasional 10% that requires a unique take.

This presentation aims to discuss the unique data structures that are commonly used in video games / game engines that caters to the occasional 10%. We will go over several systems outlining their requirements, constraints and present custom data structures that gets the job done.

Al-Afiq Yeong is a Software Engineer currently working in the Engine team at Criterion. His day to day involves performance monitoring games, making sure memory gets managed efficiently and developing new technologies that will empower future games developed with Frostbite. Prior to games, he was a full stack developer maintaining and building web apps in the service, nuclear and finance industry. Outside work, he spends most of his time writing his own rendering engine while trying to avoid the allure of the games sitting in his Steam library.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Embracing an Adversarial Mindset for C++ Security

Wednesday, September 18 10:30 - 12:00 MDT

by Amanda Rousseau

Summary of the talk:

In an era where cybersecurity threats are ever-evolving, securing C++ applications has never been more critical. This keynote will explore how adopting an adversarial mindset can empower developers to proactively identify and mitigate vulnerabilities. We will delve into common C++ vulnerabilities, the “Rule of Two” security guidelines, and practical strategies for reducing attack surfaces and defending against attack vectors. Additionally, we will discuss recent trends in vulnerabilities, highlight bug bounty costs, and examine real-world examples of vulnerabilities exploited by threat actors. This talk will provide valuable insights into adopting an adversarial mindset and implementing robust security practices in your C++ projects.

Amanda is an industry expert on malware and understanding ways to be robust against attacks.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Reflection Is Not Contemplation

Friday, September 20 14:45 - 15:45 MDT

by Andrei Alexandrescu

Summary of the talk:

The C++ community has long been interested in reflection, and we have made significant progress in adding core reflection capabilities to the language. While there is emerging clarity on the querying side of reflection—inspecting existing code artifacts programmatically—there is considerably less consensus on the generative aspect: using reflection insights to emit new code. As a result, current proposals showcase a stark contrast between well-polished reflection query capabilities and limited code generation capabilities.

Reifying only the reflection of preexisting code in an Ouroboros manner leads to a curious circularity that hinders the synthesis of new artifacts. This talk provides examples that demonstrate the necessity of generative capabilities in reflection and discusses current and upcoming proposals for generative extensions in C++ reflection.

Andrei Alexandrescu is a Principal Research Scientist at NVIDIA. He wrote three best-selling books on programming (Modern C++ Design, C++ Coding Standards, and The D Programming Language) and numerous articles and papers on wide-ranging topics from programming to language design to Machine Learning to Natural Language Processing to fundamental algorithms. Andrei holds a PhD in Computer Science from the University of Washington and a BSc in Electrical Engineering from University "Politehnica" Bucharest. He is the Vice President of the D Language Foundation.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Gazing Beyond Reflection for C++26

Friday, September 20 16:15 - 18:00 MDT

by Daveed Vandevoorde

Summary of the talk:

In less than a year since its original publication, the WG21 proposal “Reflection for C++26” (P2996) has made good progress towards its titular goal.  From its inception, we intended that design to offer a modest-but-useful set of features with a solid foundation on top of which we will be able to incrementally grow an easy-to-use, rich, and extensible C++ meta-programming framework.  This keynote will review some of the fundamental tools proposed in P2996 and follow up with a vision for some additional capabilities that we’re working on.

David ("Daveed") Vandevoorde is a Belgian computer scientist who lives near Princeton, NJ, USA. He is vice-president of engineering at the Edison Design Group (EDG), where he contributes primarily to the implementation of their C++ compiler front end. He is an active member of the C++ standardization committee where he is primarily active in the core language evolution work. His recent work in that context has primarily been about extending the capabilities of “constexpr evaluation”. Daveed is also one of the five members of the committee’s “direction group”. He is the primary author of the well-regarded “C++ Templates: A Complete Guide” (now available in its second edition).

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

When Nanoseconds Matter: Ultrafast Trading Systems in C++

Thursday, September 19 10:30 - 12:00 MDT

by David Gross

Summary of the talk:

Achieving low latency in a trading system cannot be an afterthought; it must be an integral part of the design from the very beginning. While low latency programming is sometimes seen under the umbrella of "code optimization", the truth is that most of the work needed to achieve such latency is done upfront, at the design phase. How to translate our knowledge about the CPU and hardware into C++? How to use multiple CPU cores, handle concurrency issues and cost, and stay fast?

In this talk, I will be sharing with you some industry insights on how to design from scratch a low latency trading system. I will be presenting building blocks that application developers can directly re-use when in their trading systems (or some other high performance, highly concurrent applications).

Additionally, we will delve into several algorithms and data structures commonly used in trading systems, and discuss how to optimize them using the latest features available in C++. This session aims to equip you with practical knowledge and techniques to enhance the performance of your systems and make informed decisions about the tools and technologies you choose to employ.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

To Int or to Uint, This is the Question

Thursday, September 19 15:15 - 16:15 MDT

by Walter E. Brown

Summary of the talk:

In our daily work, we often use integral data types to perform arithmetic calculations, but we may not always consider how the selection of the data type can affect performance and compiler optimizations. This talk will delve into the importance of choosing the correct data type for the job and how it impacts compiler optimizations. We will also examine the overall performance implications for the application. We will explore specific algorithms where using unsigned data types is more beneficial and other situations where signed data types are the best choice. Furthermore this talk will dive into the differences between signed and unsigned integers, how the processor handles certain operations and explain many of the surprising pitfalls of using integral types.
Attendees will come away with a deeper understanding of how data type selection can impact their code and how to make better choices for optimal performance.

This session will follow the guidelines from my short article on LinkedIn but it will go into higher details and contain more examples and explanations.

Alex has over 17 years of software development experience, working on systems, low-level generic tools and high-level applications. Alex has worked as an integration/software developer at Elbit, senior software developer at Rafael, technical leader at Axxana, Software manager at Abbott Israel and now a group manager a technical manager at Speedata.io an Exciting startup the will change Big Data and analytics as we know it .On His current Job Alex is developing a new CPU/APU system working with C++20, Massive metaprogramming and development of LLVM to create the next Big thing for Big Data. _x000D_
_x000D_
Alex is a C++ expert with a strong experience in template meta-programming. Alex also teaches a course about the new features of modern C++, trying to motivate companies to move to the latest standards.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

C++ Exceptions for Smaller Firmware

Tuesday, September 17 10:30 - 12:00 MDT

by Khalil Estell

Summary of the talk:

For years, developers have overlooked a powerful tool for reducing binary size: C++ exceptions. Join me on a deep dive into the world of exceptions and discover how they can be harnessed to create more space efficient firmware. We’ll explore the requirements and best practices of embedded development, and show what is required to use exceptions in that environment. By the end of this talk, you’ll have a thorough understanding of how exceptions are handled, what their space costs are, and how exceptions compare to functional errors as values.

Khalil is a ISO C++ Committee Member and has extensive experience writing production firmware.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

An Ode to Concepts

Friday, September 20 09:00 - 10:00 MDT

by Nina Ranns

Summary of the talk:

Concepts are a long awaited C++ feature. They allow constraining a template in a much more elegant way than various enable_if tricks. In this lecture we cover the basics of concepts syntax, how to write a concept and how to apply a concept in your code. Then we look at one woman's experience of implementing a heavily constrained type before and after introduction of concepts.

Nina Ranns has been a member of the C++ standard committee since 2013, focusing mostly on the core part of the language, and committee secretary since 2018. Throughout her career she has worked for Siemens, Motorola, Datasift, and Symantec on everything from parts of the UMTS network to cloud based antivirus products. Currently an independent consultant with contracts for EDG, QT, and most recently Bloomberg, where she is eagerly extending her library knowledge and helping create new polymorphic-allocator friendly library types.

The opening keynote of CppCon 2024 is just 20 days away! The program has over 100 great talks and panels, and the five keynotes have been announced:

• Monday, Herb Sutter. "Peering forward: C++'s next decade" (Sched)
• Tuesday, Khalil Estell. "C++ Exceptions for smaller firmware" (Sched)
• Wednesday, Amanda Rousseau. "Embracing an adversarial mindset for C++ security" (Sched)
• Thursday, David Gross. "When nanoseconds matter: Ultrafast trading systems in C++" (Sched)
• Friday, Daveed Vandevoorde. "Gazing Beyond Reflection for C++26"

If you're interested in savings, the Regular price for on-line and on-site tickets is available until this Friday, August 30. After that tickets will still be available right up to the conference, but at the late registration ticket price.

To register for CppCon 2024 at the Regular rate, click this link this week.

For details of on-line and on-site tickets, see the Registration page which includes information about student registration discounts, group rates, the CppCon Academy (extra pre- and post-conference classes by world-renowned instructors including online classes for those who can't be there in person), the community dinner, the "Meet the Presenters" banquet, and much more!

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Back to Basics: Functional Programming in C++

Thursday, September 19 09:00 - 10:00 MDT

by Jonathan Müller

Summary of the talk:

Functional programming is a declarative way of writing programs by composing functions.
In many situations, this can lead to code that is easier to write and understand and less error-prone.
However, it requires a shift to a more functional mindset.
This talk gives an introduction to functional programming in C++ using the modern standard library.
We will cover algorithms using `std::ranges`, composable error handling with `std::optional` and `std::expected`, algebraic data types, and separating IO from computation.
In the end, we'll even cover the M-word.

Jonathan is a Software Engineer at think-cell. There, he is responsible for maintaining think-cell's core libraries, which include a custom range library, a fast and convenient JSON parser, and many other utilities and data structures to write elegant C++ code. Before working at think-cell, he wrote many useful open-source C++ libraries. He is also a member of the C++ standardization committee, where he serves as the assistant chair for std::ranges, and a frequent conference speaker.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Building Safe and Reliable Surgical Robotics with C++

Wednesday, September 18 15:15 - 16:15 MDT

by Milad Khaledyan

Summary of the talk:

This talk examines the use of C++ in building distributed robotic surgical systems, emphasizing safety, performance, and reliability. While C++ offers strong performance benefits, it also presents challenges in meeting industry standards and regulations in the medical technology field. We discuss the architectural decisions and strategies employed to meet international safety standards for medical devices, and present techniques for writing efficient, safe and reliable software. Our experience in building a surgical robotic system serves as a case study, highlighting the challenges and solutions in this highly regulated domain.

Milad Khaledyan is a Staff Robotics Software Engineer at Johnson & Johnson MedTech, based in Santa Clara, CA, USA. With extensive experience across various companies, he specializes in software development for robotics in medical devices, as well as autonomous robots in manufacturing settings. Milad earned his doctoral degree in Mechanical Engineering, specializing in Robotics and Control, from Louisiana State University in 2018.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Leveraging C++20/23 Features for Low Level Ineractions

Tuesday, September 17 14:00 - 15:00 MDT

by Jeffrey Erickson

Summary of the talk:

Low level interactions are a core part of embedded implementations. All too often, C++ developers rely on C constructs and interactions due to prior biases around language support.  Herein we present effective leveraging of C++20 and C++23 constructs in an embedded driver code base. From using an existing C driver more effectively with modern C++ smart pointers to leveraging constexprs for bit and byte manipulation in the standard library, we will go over how you can stay on the cutting edge of the C++ language evolution in the embedded space.

Jeffrey E Erickson works in HW/SW Codesign Architecture at Altera, an Intel company. He holds a BS in Electrical and Computer Engineering from the University of Virginia and a doctorate from Rutgers University and UMDNJ. For 15 years he has worked in embedded systems development including FPGA-processor integration, secure firmware development, and systems modeling. He holds 3 patents in image processing and signal integrity.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Peering Forward - C++'s Next Decade

Monday, September 16 08:45 - 10:30 MDT

by Herb Sutter

Summary of the talk:

This is an exciting year for ISO C++: In just the past few months, it has started to become clear that C++ is approaching three major positive turning points that are starting to materialize together in a blossoming of usability we haven’t seen since C++11.

First, compile-time reflection, including source generation, will dominate the next decade of C++ as arguably the most powerful feature that we’ve ever standardized, and (fingers crossed!) it’s on track for being included in C++26 in the coming months. I expect reflection’s impact on library building to be comparable to that of all the other library-building improvements combined that we’ve added since C++98.

• Related: The CppCon 2024 Friday keynote will be all about reflection… more about that will be announced soon!

Second, memory safety is being taken seriously in WG21. After a decade or two of gradual smaller improvements, the committee is actively working toward taking the major step of enabling well-known proven-effective safety checks at compile time by default, without compromising performance.

• Related: The CppCon 2024 Monday evening panel and Wednesday keynote will be all about safety… more about those will be announced soon!

Third, simplifying C++ is being taken seriously. I’m not the only person actively proposing simplifications to C++, and I expect the rate of simplification proposal papers to increase again in the coming year as the fruits of in-the-field experiments turn into evidence that the experimental improvements are working and are ready to be considered for ISO C++ itself to benefit all programmers.

Most of all, the above overlap and reinforce each other. For example, reflection will enable writing more new facilities as compile-time libraries instead of as language features that have to be baked into a compiler, which helps simplify future language evolution. Reflection will also enable compile-time libraries that let developers express their intent directly and leave it to the library code to accurately generate correct implementations, which helps reduce errors and makes our code both simpler and safer.

ISO C++ has long been solidly in the top 5 programming languages and is going strong. This talk presents reasons to expect that C++’s future is bright, and that perhaps its most important decade is just ahead.

Herb is an author, designer of several Standard C++ features, and chair of the ISO C++ committee and the Standard C++ Foundation. His current interest is simplifying C++.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Perspectives on Contracts

Thursday, September 19 14:00 - 15:00 MDT

by Lisa Lippincott

Summary of the talk:

For many years, members of the C++ working group, WG21, have tried to add support for contract assertions — preconditions, postconditions, and assertion statements within a function body — to the C++ language. It’s been a long and difficult road, but we now have a proposal (P2900, “Contracts for C++”) to add significant contract support in, we hope, C++26, with more complete support to follow in C++29.

Looking back, the contracts feature has been unusually difficult and contentious. I contend that the difficulty is inherent in the feature: a contracts facility, by its nature,  cannot be understood from any single point of view.

In this lecture, I will explain why understanding contracts requires seeing the feature from a panoply of perspectives, and show how shifting between these perspectives allows one to make effective use of the facility.

This lecture is derived from presentations made to the Language Evolution subgroup of WG21 at the St. Louis meeting in June 2024.

Lisa Lippincott designed the software architectures of Tanium and BigFix, two systems for managing large fleets of computers. She's also a language nerd, and has contributed to arcane parts of the C++ standard. In her spare time, she studies mathematical logic, and wants to make computer-checked proofs of correctness a routine part of programming.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Compile-time Validation

Tuesday, September 17 15:15 - 16:15 MDT

by Alon Wolf

Summary of the talk:

C++ is often criticized for its lack of inherent memory safety, but the spectrum of potential program validations extends far beyond just memory concerns. This talk delves into the necessity of early validation, emphasizing the benefits of compile-time checks in C++. By leveraging compile-time validation, developers can catch errors and enforce constraints before the code is even executed, enhancing both safety and correctness.

A functional programming approach to compile-time validation will be discussed, highlighting its benefits and demonstrating its application in ensuring code correctness.

Moreover, the talk will delve into the realm of compile-time unit tests, showcasing how they enable developers to validate code behavior at compile time, paving the way for more efficient debugging and maintenance.

Exploring advanced features, we'll discuss existing compile-time techniques to implement lifetimes, borrow checker, and other validation rules by leveraging template metaprogramming for memory safety and how they can be improved with the upcoming C++26 reflection proposal.

Additionally, we will review language extensions and compiler-specific features that augment compile-time validation capabilities. Finally, the talk will cover the role of static analysis tools in detecting potential issues early in the development process, thus complementing compile-time techniques. Attendees will gain a comprehensive understanding of the various strategies available for enhancing program reliability through compile-time validation in C++.

Alon is a Senior Software Engineer at Medtronic specializing in 3D and computer graphics with a passion for high performance. He has developed many custom simulation and rendering engines for different platforms using modern C++. He also writes a C++ technical blog and participates in game jams.

On Sunday the voting for Meeting C++ 2024 ended, now the program is taking shape. The schedule should be available by end of August.

A first look at the voting results for Meeting C++ 2024

by Jens Weller

From the article:

And through this voting, these talks made it into the top 11 - forming the main track:

    Andreas Weis - C++ Modules - Getting Started Today
    Roth Michaels - Templates made easy with C++20: how constexpr/constexpr, fold expressions, and concepts change how we write code
    Bryce Adelstein Lelbach - The C++ Execution Model
    Klaus Iglberger - There is no Silver Bullet
    Boguslaw Cyganek - Pipeline architectures in C++: overloaded pipe operator |, std::expected and its monadic operations
    Nico Josuttis - C++ Concepts: What you should know and how to use them right
    Peter Muldoon - Dependency Injection in C++ : A Practical Guide
    Jonathan Müller - An (In-)Complete Guide to C++ Object Lifetimes
    Sandor Dargo - Clean code! Horrible performance?
    Andreas Fertig - Fast and small C++ - When efficiency matters
    Timur Doumler - Contracts for C++

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Security Beyond Memory Safety - Using Modern C++ to Avoid Vulnerabilities by Design

Monday, September 16 11:00 - 12:00 MDT

by Max Hoffmann

Summary of the talk:

Nowadays, there is one topic that comes up in virtually all discussions on system programming languages: memory safety.
However, even though memory safety rules out many of the most common sources of vulnerabilities, there are still plenty of ways how a vulnerability may find its way into the codebase.

In this talk, we look beyond memory safety and explore how we can prevent vulnerabilities through simple yet effective C++ constructions and custom static analysis scripts. We analyze multiple examples, from basics like input validation to complex time-of-check vs time-of-use issues when accessing shared resources, all of which are inspired by real-world products, use cases, or vulnerabilities. For each example, we discuss attacker models, threats, and implementation pitfalls, before looking at potential solutions that are not just secure by themselves but also protect developers from accidentally introducing vulnerabilities in the future.

Attendees will leave with a deeper understanding of security engineering and inspirations for leveraging C++ to prevent potential security issues by design.

Max Hoffmann studied cybersecurity and got his Ph.D. in hardware security at the Ruhr University Bochum, Germany, in association with the Max Planck Institute for Security and Privacy at the research group of Professor Christof Paar. With a passion for teaching, he continues to contribute to the university as an external lecturer, shaping the next generation of cybersecurity professionals. As a Security Manager at ETAS, he oversees the Onboard Security portfolio, driving process improvements, supporting in technical discussions, managing vulnerabilities, and enhancing security awareness in the organization.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Template-less Meta-programming

Friday, September 20 09:00 - 10:00 MDT

by Kris Jusiak

Summary of the talk:

Meta-programming is one of the most significant C++ superpowers. It enables seemingly impossible feats, but there is a considerable cost associated with it as well. Therefore, its applications have been limited to experts and cases where the benefits greatly outweigh the maintenance burden.

But what if that doesn't have to be the case? In this talk, we will explore an alternative approach to template meta-programming that does not require an understanding of the traditional 'angle bracket' technique.

We will also make the case that anyone who can write C++ can become a meta-programming guru! But what about compilation times and/or testing/debugging, you may ask? Well, we will cover those as well, and it might be surprising what modern C++ is actually capable of!

Additionally, we will cover how the static reflection proposal and C++20 ranges can further improve the ability to write meta-functions and how C++ compares to other languages such as circle. However, we will also show how to apply the technique with C++17 on all major compilers with a ready-to-go solution.

Finally, we will benchmark compilation times of different approaches, showcasing their strengths and weaknesses.

If you are interested in meta-programming or have always wanted to understand its practical use cases but never really grasped them, this talk is for you!

Kris is a passionate Software Engineer with experience across various industries, including telecommunications, gaming, and most recently, finance. He specializes in modern C++ development, with a keen focus on performance and quality. Kris is also an active conference speaker and open-source enthusiast, having created multiple open-source libraries.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Deciphering C++ Coroutines - Mastering Asynchronous Control Flow

Thursday, September 19 09:00 - 10:00 MDT

by Andreas Weis

Summary of the talk:

One of the most powerful applications of coroutines is in the context of asynchronous operations, where their use allows for significant simplifactions of application code. Unfortunately, building an asynchronous library interface to enable such benefits for applications is not exactly straightforward in C++.

In this talk we will explore the essentials of managing asynchronous control flow with coroutines. We will discover how to reconstruct the call stack of nested asynchronous calls and thus bridge a significant gap between C++'s stackless coroutines and the stackful coroutines from other languages. We will learn how to build a mechanism similar to the async/await from languages like Python or Javascript for our own libraries. And we will explore how we can perform arbitrary manipulations of the call stack in such an environment to unleash the full power of C++'s coroutine mechanism.

At the end of this talk we will have a proper understanding of how the Task<> type found in many coroutine libraries works and how it can be used to manage asynchronous operations. This will serve as an important building block for understanding more advanced mechanisms, like the sender/receiver mechanism proposed for C++26.

This talk assumes basic familiarity with the components of the C++ coroutines language feature: promises, awaitables, coroutine handles, and passing data in and out of coroutines.

This is the second part in an ongoing series of talks about C++20 coroutines.

Andreas Weis has been writing C++ code in many different domains, from real-time graphics, to distributed applications, to embedded systems. As a library writer by nature, he enjoys writing portable code and exposing complex functionalities through simple, richly-typed interfaces. Both of which C++ allows him to do extensively.Andreas is also one of the co-organizers of the Munich C++ User Group, which allows him to share this passion with others on a regular basis.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Designing a Slimmer Vector of Variants

Wednesday, September 18 14:00 - 15:00 MDT

by Christopher Fretz

Summary of the talk:

Heterogeneous containers ("vectors of variants") are an extremely flexible and useful abstraction across many data domains, but std::vector<std::variant<...>> can exhibit extremely bad memory characteristics for mixed types of disparate size, especially if the largest types are relatively uncommon in practice. Variants always have to be at least as large as their largest contained type, and vector implicitly requires all of its members to be the same size, leading to significant bloat in such cases. Motivated by real-world use-cases, this talk explores the design of a bit-packed replacement data structure that can achieve massive improvements in memory usage, and the impacts that these optimizations have on its API.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Shared Libraries and Where to Find Them

Tuesday, September 17 • 14:00 - 15:00 MDT

by Luis Caro Campos

Summary of the talk:

Most C++ developers are familiar with the type of errors that arise when a shared library is not found. If they are really unlucky, they are have also faced a situation where the the wrong version of a library is loaded. However, a lot of us resort to suboptimal solutions just to get going, without fully addressing the root causes.

A lot of the time, we focus on the “build” process, that is, producing our binaries and executables. But getting the runtime linker/loader to locate the right libraries (and the right versions!) has a unique set of challenges that  should not be overlooked - after all, running the executables is critical for running tests, continuous integration, and obviously end-users running our apps and services.

Managing dependencies continues to be one of the top frustrations of C++ developers as per the most recents ISO C++ Developer Surveys. When it comes to shared libraries - different applications try to locate them at different times: the build system (e.g. CMake or Autotools) when configuring the build, the linker at build time, and the dynamic linker/loader at runtime.

This talk will cover in detail the different scenarios in which shared libraries need to be located, and how this is handled by package managers, build systems, and the the OS level. Emphasis will be placed on familiarizing the developer with the relevant tooling across multiple platforms, as well as associated concepts (e.g. RPATHs).

An often overlooked aspect will also be covered: how to create a self-contained, relocatable bundle for our user-facing applications, decoupled from the developer environment, as opposed to “works on my machine”.

Luis is a Electronics and Computer Engineer based in the UK, with previous experience as a C++ engineer in the field of Computer Vision and Robotics. With a passion to enable C++ engineers to develop at scale following modern DevOps practices. He is currently part of the Conan team at JFrog, focused on the problems of the C++ community at large.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Bridging the Gap: Writing Portable Programs for CPU and GPU

Monday, September 16 • 15:15 - 16:15 MDT

by Thomas Mejstrik

Summary of the talk:

This talk presents a series of effective patterns to address challenges arising when
code is developed that shall operate seamlessly on both GPU (Cuda) and CPU environments.
This scenario is a common oversight among Cuda developers, given the substantial architectural differences between CPUs and GPUs.

The patterns presented cover a range of scenarios, from handling stray function calls, strategies for conditional compilation, exploiting constexpr functions, leveraging undefined behaviour, usage of Cuda specific macros,
conditional instantiation of templates, and managing compiler warnings and errors.

Key patterns include: "Host device everything", "Conditional function body", "Constexpr everything", "Disable the warnings", "Defensive Programming", "Conditional Host Device Template", and "Function dispatching".

We evaluate each pattern based on ease of use, maintenance overhead, applicability and known usages. Additionally, pitfalls to avoid and considerations for implementations are provided to guide developers in adopting these patterns effectively.

Thomas Mejstrik earned his doctoral degree in Mathematics from the University of Vienna, Austria, specializing in numerical linear algebra and high-performance computing. Additionally, he obtained a Master's degree in Piano Education from the University of Music and Performing Arts Vienna, Austria. He also pursued studies in Chinese at the Central China Normal University, Wuhan, China, and the University of Vienna, Austria. With prior experience as a CUDA/C++ Senior Software Developer at Dimetor, Vienna, Austria, Thomas Mejstrik currently serves as a Postdoctoral Researcher at the University of Vienna, leading a research project on linear subdivision schemes, particularly relevant in animation. Beyond his academic and professional pursuits in mathematics, programming, and music, Thomas Mejstrik is actively involved in various women's political initiatives.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Reflection Based Libraries to Look Forward To

Tuesday, September 17 • 09:00 - 10:00 MDT

by Saksham Sharma

Summary of the talk:

The primary reason for your code to get bored is fatigue from repetitive instructions. You write down enums, but then you also have to write their stringified version, and you also have to write a function to map the strings to the enums. You write down a class, but you have to expose every method / member in the class separately to be able to bind your class to a Python program (for example).
Reflection is (potentially / hopefully) showing up for C++26, having already been forwarded from the SG7 subgroup on reflection / compile time programming to the LEWG and EWG. This talk will discuss everything there is so far on reflection, and we will lead up to three library ideas based on reflection:

Python bindings
ABI hashing (hashing a type for efficient compatibility checking)
A better std::any variant type with duck typing
Come attend this talk if you'd like to hear about cool new library possibilities that have opened up with reflection!

For background, we will look at a little bit of context and how reflection works in some other languages, and will explore how the P2996R1 paper’s proposed version of reflection looks in practice, with some real use-case inspired code.

Saksham Sharma is a Director of Quantitative Research Technology at Tower Research Capital LLC, a high frequency trading firm based out of New York. He develops low latency and high throughput trading systems and strategies used for the firm's global quantitative trading. In addition, he also helps design and improve big data research infrastructure used for trading research using a combination of C++ and Python. Thanks to an urge to optimize his daily workflow, he also owns the build systems, tooling, and package managers for C++ within his team.In the past, he has worked in the fields of program analysis research, functional programming, and systems security. He is a reformed geek (exemplified by a switch to VSCode after almost a decade with Emacs), and now enjoys driving, guitar, badminton, and snowboarding.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Taming the C++ Filter View

Tuesday, September 17 • 16:45 - 17:45 MDT

by Nicolai Josuttis

Summary of the talk:

C++20 introduced "views" as easy-to-use building blocks for processing the elements and values of containers and ranges.
The filter view is one of the key views, because filtering collections of data to process only elements that satisfy a specific constraint or requirement is one of the most important use cases of dealing with ranges and views.

Unfortunately, the filter view is also one of the most surprising C++ standard views. Even for simple use cases, you can easily get:
- Unexpected functional behavior
- Surprising compile-time errors with cryptic error messages
- Fatal runtime errors (without even noticing them)

There are reasons for the design of the filter view. For a successful filtering of elements you should know and understand the design and all of its consequences.

The talk will demonstrate all the issues with simple real-work examples and explain both the motivation and consequences if this design in practice. Listen and learn aspects you would not expect but have to know when using the filter views and views in general.

Nicolai Josuttis (www.josuttis.com) is well-known in the community for his authoritative books and talks. For more than 20 years he has been a member of the C++ Standard Committee. He is the author of several worldwide best-sellers, including:- C++20: The Complete Guide- C++17: The Complete Guide- C++ Move Semantics: The Complete Guide- The C++ Standard Library: A tutorial and Reference- C++ Templates: The Complete Guide (w/ David Vandevoorde & Doug Gregor)

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Implementing Ranges and Views

Wednesday, September 18 • 16:45 - 17:45 MDT

by Roi Barkan

Summary of the talk:

Since `ranges` were introduced to C++20, a new paradigm was presented to us C++ developers. This paradigm, [sequence oriented programming](https://cppcast.com/sequence_oriented_programming/) allows easy expression of useful algorithms, helps us decompose problems into smaller-clearer sub-problems and has the potential of increasing the readability and maintainability of solutions we develop to difficult problems.

Though rich and diverse, the set of tools in our `ranges` toolbox is at its infancy, and the robust design of the library makes it possible for us to extend it with algorithms and views on our own. Doing so can increase our productivity, enrich our vocabulary and also be fun and challenging.

In this talk I'll discuss the structure of the ranges library in terms of its main `concept`s and how it was designed to be extensible (especially as on C++23).

We will focus on the implementation `range views`, and go over several examples of how new views which aren't part of the standard should be designed and implemented, in a way that fits with the rest of the `ranges` library.

Join me in the development of range adapters as we learn about range categories, concepts, adapters, customization-point-objects and range-adapter-closures.

Professional software developer and architect since 2000, Roi's main focus throughout his career was on high performance and distributed systems, implementing complex and innovative algorithms. Roi is the SVP technologies of Istra Research, where he helps creating low latency financial systems. Prior to working for Istra Research, Roi spent 12 years in software development, architecture and management in the IT Security field. Roi received his B.A in Computer Science with high honors from the Technion in Israel, and his executive MBA from Tel Aviv University.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

C++/Rust Interop: Using Bridges in Practice

Friday, September 20 • 10:30 - 11:30 MDT

by Tyler Weaver

Summary of the talk:

A practical guide to bridging the gap between C++ and Rust. We cover bindings, including a manual approach, and compare them with generated bindings using CXX.  We also show how to link CMake with Cargo and link with transitive C++ dependencies using Conan.

 

Tyler Weaver has been writing C++ for 10 short years in multiple domains. He's worked on signal processing, robotics, and now back-end web development at SciTec.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Irksome C++

Thursday, September 19 • 16:45 - 17:45 MDT

Walter E Brown

Summary of the talk:

As much as I like C++, it is certainly not free of -- let's say -- quirks.  Both the core language and the standard library exhibit idiosyncracies, sometimes even in conflict with one another.

Some of these "oops" may be historical in origin.  However, most are due to the spectrum of viewpoints held by the hundreds of contributors who have participated in C++ standardization to date.

This talk points out many of these inconsistencies and numerous other infelicities in naming, behavior, or both.  Come see whether *your* pet C++ peeve is mentioned!

 

With broad experience in industry, academia, consulting, and research, Dr. Walter E. Brown has been a computer programmer for almost 60 years, and a C++ programmer for more than 40 years.He joined the C++ standards effort in 2000, and has since written circa 175 proposal papers. Among numerous other contributions, he is responsible for introducing such now-standard C++ library features as cbegin/cend, common_type, gcd/lcm, void_t, and ’s mathematical special functions, as well as the headers and . He has also significantly impacted such C++ core language features as alias templates, contextual conversions, variable templates, static_assert, and operator (the C++20 “spaceship operator”).When not playing with his grandchildren, Dr. Brown continues as an Emeritus participant in the C++ standards process and as a frequent speaker at C++ conferences and meetups worldwide.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Building Cppcheck - What We Learned from 17 Years of Development

Wednesday, September 18 • 09:00 - 10:00 MDT

by Daniel Marjamäki

Summary of the talk:

Cppcheck has been evolving for 17 years, guided by a clear philosophy: minimal false positives and ease of use. This presentation will share the insights we've gained during its development. Our approach to easy configuration is a double-edged sword, providing user-friendly setup while occasionally leading to lower recall. We maintain a strict definition of false positives, ensuring the tool does not warn about well-written, functional code. This principle, while challenging, drives us to fix rather than suppress false positives. A core philosophy of Cppcheck is to learn from mistakes. When an issue is identified, we strive to implement checkers to prevent similar mistakes in the future.

The open-source community plays a crucial role in Cppcheck's evolution. We collaborate to enhance the tool, scanning large codebases like Debian's source code to identify inconsistent or dangerous code and measure false positives. We also explore how abstractions, compiler annotations, and contracts can improve SCA tools' precision and performance. This talk will provide a comprehensive look at the lessons learned and the continuous improvement of Cppcheck.

Daniel Marjamäki is a software engineer from Sweden and the author of Cppcheck, a static analysis tool for C/C++ code. He created Cppcheck to help developers find bugs and improve code quality. Thanks to his work, Cppcheck has become a widely used tool in the programming community. Marjamäki is known for his contributions to improving software development practices.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Data Is All You Need for Fusion

Monday, September 16 • 16:45 - 17:45 MDT

by Manya Bansal

Summary of the talk:

Functions are the fundamental unit of interoperability in software design: users write applications by composing functions provided by various libraries. However, naive function composition can result in poor performance due to memory overheads that exist at function boundaries. Operator fusion --- combining the execution of several operators into one operator --- is a well-known technique to combat this overhead. Previous solutions to add fusion rely on complex, monolithic compilers and languages that force performance engineers to rediscover old solutions in new ecosystems, leading to decades of performance engineering work going underutilized. In this work, I attempt to identify the minimal ingredients required to enable fusion on top of existing library interfaces. In doing so, I propose a lightweight enrichment of function interfaces that exposes data production and consumption patterns of functions. I show how to implement these ideas in C++ and demonstrate the benefits of my system by showing that it is competitive with state-of-the-art high-performance libraries, and that it can fuse across library boundaries for unforeseen workloads.
 

Manya is a computer science PhD student at MIT, advised by Saman Amarasinghe and Jonathan Ragan-Kelley. Before starting her PhD, she studied Mathematics at Stanford University, and worked with Fredrik Kjolstad and Dawson Engler. Manya is interested in designing extensible and productive languages and tools for heterogeneous systems.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Multi Producer, Multi Consumer, Lock Free Atomic Queue

Tuesday, September 17 • 0900 - 10:00 MDT

by Erez Strauss

Summary of the talk:

This presentation introduces a multi-producer, multi-consumer, lock-free queue with unique characteristics. We will cover the C++17 implementation and the std::atomic features required for this queue based on the CPU atomic instructions and discuss the queue's portability across various CPU architectures, beyond just X86_64 and runtime environments.

Efficient message queue-based communication between threads is crucial for optimal performance in multi-threaded applications. Queues are fundamental data structures that interact with various aspects of the application environment, including schedulers, memory allocation systems, and CPU hardware architectures.

Many use cases such as trading platforms, games, audio processing and other fields have strict latency and scaling requirements and this queue implementation has proved to reduce system latencies.

The presentation will feature the design of the queue, the required template language features, bandwidth and latency consideration, and multiple demo applications. Comparing this queue implementation’s benchmark results with other existing queues will follow. Finally, we will discuss potential future work and areas for improvement.

Join us to explore how this innovative queue implementation can improve your multi-threaded application performance.

All presentation materials, including the C++17 source code, slides, benchmarks, and demo applications are available on GitHub.

Erez Strauss worked in Banks and Hedge Funds while focused on low latency systems.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Many Ways to Kill an Orc (or a Hero)

Monday, September 16 • 15:15 - 16:15 MDT

by Patrice Roy

Summary of the talk:

Our game programmers and game engines involve fights between heroes and their foes. There are «classical», traditional ways to express heroes and monsters fighting each other, but contemporary C++ is particularly expressive and versatile language and with out language there are many ways for heroes and monsters to hit at each other. These techniques are what this talk will explore

Patrice Roy has been playing with C++, either professionally, for pleasure or (most of the time) both for over 30 years. After a few years doing R&D and working on military flight simulators, he moved on to academics and has been teaching computer science since 1998. Since 2005, he’s been involved more specifically in helping graduate students and professionals from the fields of real-time systems and game programming develop the skills they need to face today’s challenges.He’s been a participating member in the ISO C++ Standards Committee since late 2014 and has been involved with the ISO Programming Language Vulnerabilities since late 2015. He has five kids, and his wife ensures their house is home to a continuously changing numbers of cats, dogs and other animals.

A few weeks ago the voting for Meeting C++ 2024 started, contribute with your own voting session to the program selection of this years Meeting C++!

Also, as the most recent announcement, early bird tickets are on sale until August 11th, the day the voting ends:

Early Bird Tickets for Meeting C++ 2024 are available until August 11!

by Jens Weller

From the article:

Quick reminder that the early bird tickets for Meeting C++ 2024 are going to be availble until the end of the voting on the talks!

Which is August 11th! Its also possible that early bird tickets sell out before this. Currently only the hotel ticket and the online ticket are available as early bird. The onsite early bird ticket sold out a few weeks ago.

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

So You Think You Can Hash

Monday, September 16 • 14:00 - 15:00 MDT

by Victor Ciura

Summary of the talk:

Hashing is crucial for efficient data retrieval and storage. This presentation delves into computing hashes for aggregated user-defined types and experimenting with various hash algorithms. We will explore the essentials of hash functions and their properties, techniques for hashing complex user-defined types, and customizing std::hash for specialized needs.

Additionally, we (re)introduce a framework for experimenting with and benchmarking different hash algorithms. This will allow easy switching of hashing algorithms used by complex data structures, enabling easy comparisons. Hash algorithm designers can concentrate on designing better hash algorithms, with little worry about how these new algorithms can be incorporated into existing code. Type designers can create their hash support just once, without worrying about what hashing algorithm should be used.

You will gain practical insights and tools to implement, customize, and evaluate hash functions in C++, enhancing software performance and reliability.

Victor Ciura is a Principal Engineer on the Visual C++ team, helping to improve the tools he’s been using for years. Leading engineering efforts across multiple teams working on making Visual Studio the best IDE for C++ Game developers.   Before joining Microsoft, he programmed C++ professionally for 20 years, designing and implementing several core components & libraries of Advanced Installer, improving the virtualization and repackaging technologies for MSI/MSIX.   One of his hobbies is tidying-up and modernizing aging codebases and has been known to build open-source tools that help this process: Clang Power Tools.   He’s a regular guest at Computer Science Department of his Alma Mater, University of Craiova, where he gives student lectures & workshops on using modern C++, STL, algorithms and optimization techniques.   More details: @ciura_victor & https://ciura.ro & linkedin.com/in/victor-ciura

Registration is now open for CppCon 2024! The conference starts on September 15 and will be held in person in Aurora, CO. To whet your appetite for this year’s conference, we’re posting some upcoming talks that you will be able to attend this year. Here’s another CppCon future talk we hope you will enjoy – and register today for CppCon 2024!

Creating a Sender/Receiver HTTP Server 

Monday, September 16 • 11:00 - 12:00 MDT

by Dietmar Kühl

Summary of the talk:

The sender/receiver framework for asynchronous operations in C++ is well on its way towards standardization in C++26. Previously, the theoretical background and implementation of the framework was shown but there wasn't much detail on how an application using sender/receiver would look like.

This presentation shows how to create a simple HTTP server using the sender/receiver framework with matching networking senders together with a coroutine task and and async scope. The code is created live using fundamental facilities. The goal is to demonstrate that the use of an asynchronous framework doesn't necessarily lead to excessive complexity when using C++'s facilities effectively. The resulting server could be embedded into any application, e.g., to inspect its state or change configurations. The takeaway is that it is reasonably straight forward to create an asynchronous program.

Dietmar Kühl is a senior software developer at Bloomberg L.P. working on the data distrubtion environment used both internally and by enterprise installations at clients. In the past, he has done mainly consulting for software projects in the finance area. He is a regular attendee of the ANSI/ISO C++ standards committee, frequent presenter at the ACCU conference, and a moderator of the newsgroup comp.lang.c++.moderated.

The opening keynote of CppCon 2024 is just 89 days away!

If you're interested in savings, the Early Bird discount for on-line and on-site tickets is available until this Friday, June 21. After that tickets will still be available right up to the conference, but at the full ticket price.

To register for CppCon 2024 with the Early Bird discount, click this link this week.

For details of on-line and on-site tickets, see the Registration page which includes information about student registration discounts, group rates, the CppCon Academy (extra pre- and post-conference classes by world-renowned instructors), the diversity dinner, the "Meet the Presenters" banquet, and much more!

Like in the last two years Meeting C++ is organizing an event about technical speaking at C++ conferences, aiming to help new speakers with their talks and give everyone a chance to pick up something to improve their talks! The call for talks for Meeting C++ 2024 is running until June 25th!

Speaking about C++

Organized by Jens Weller

From the event description:

This event will focus on the process of creating technical talks for the C++ community. Various speakers will share their views on how to submit, prepare and give talks to the C++ community in the form of lightning talks and a panel.

The recordings for all Pure Virtual C++ 2024 sessions are now online. This includes the 5 main sessions plus over a dozen pre-conference videos.

Pure Virtual C++ 2024 Recordings Available

By Sy Brand

From the article:

All recordings for our Pure Virtual C++ 2024 conference are now available. Thanks to everyone who came along and hope to see you again next year! You can find the full playlist on YouTube.

The C++ on Sea 2024 schedule is out, with 2-day workshops, 4-tracks of main conference, 2 lightning talk sessions and even a Movie Night!

Full schedule for 2024

by C++ on Sea

From the article:

We now have the full schedule for 2024 - and it's a doozy! We also have a few new features this year.

The session list for Pure Virtual C++ 2024 is live:

Pure Virtual C++ 2024 Sessions Announced

By Sy Brand

From the article:

• Automated Testing of Shader Code with Keith Stockdale
• Message Handling with Boolean Implication with Ben Deane 
• I Embedded a Programming Language In Debug Information with Sy Brand
• Enhancing C++ development with Copilot Chat with Sinem Akinci 
• Progress Report: Adopting Header Units in Microsoft Word with Zachary Henkel

The full ACCU 2024 Conference schedule is live:

Announcing the full ACCU 2024 Conference schedule

by ACCU & ShavedYaks

From the article:

A little later than expected, due to some logistical issues, but we can now finally announce the full schedule for the 2024 ACCU Conference - and it's going to be awesome!