EVENT VIRTUAL Spring ACCU 2021.3.10–13 Pre-Conference tutorials 2021.3.9 2021 CONFERENCE PROGRAMME HEADLINE 2021 SPONSOR CONFERENCE Bloomberg is the leading provider of financial news and information. Our R&Ddepartment consists of 3000 engineers working across WELCOME teams in both London and New York. Terminal is the primary product we are known We are technology people – when we write for – it used to run on custom hardware, but code, we like to understand exactly what the is now a piece of software that runs on a PC – hardware is doing. We live and breathe C++, typically connected to 2 or more monitors. Over and are concerned about cpu performance, 315,000 customers pay a monthly subscription optimizations, memory allocation behaviour, to access our real-time data and news, deep Welcome to ACCU 2021! as well as higher-level software engineering analytic functions and trading functionality principles such as building modular, scalable, through our custom browser. You will see many ACCU Conference is the annual conference developers. Even though the conference in reliable and debuggable code. We write a Bloomberg Terminals on most trading floors of the ACCU membership club, but open 2020 had to be cancelled because of the lot of systems ourselves, but have embraced around the world, and in the offices of influential to any and all who wish to attend. The COVID-19 pandemic, many speakers are the open source community. The Bloomberg decision-makers within financial markets. ACCU Conference has a history founded in happy to give their presentations in 2021. studying and evolving C and C++ – many of So we have our usual mix of keynotes, its members continue to have active roles sessions, quickies and lightning talks. in the C and C++ standards bodies. The ACCU Conference has always had C++ at Many thanks to all the session presenters OTHER SPONSORS/PARTNERS it’s core, but has, from the outset, always for submitting, making preparations, been about programming languages, and running the session. Many thanks as programming tools and techniques, and well to all attenders for being online and programming processes. ACCU Conference making the conference under these difficult is a conference by programmers for conditions work. Undo is the leading Software Failure Replay programmers about programming. Or you A special thanks to the sponsors and platform provider for engineering teams could substitute software development exhibitors: they are as much attenders Mosaic Financial Markets is a consulting building complex systems. Its products – UDB for programming and it would mean the as anyone. Hopefully everyone will get a firm that offers a compelling and disruptive and LiveRecorder – help reduce the Mean Time- same thing. Many ACCU attenders, and chance to talk to everyone. alternative to the traditional consulting model. To-Resolution (MTTR) of software defects by ACCU members are software developers/ eliminating the guesswork in bug diagnosis. programmers working as employees in The programme presented in this We deliver in close partnership with our financial organisations, many are consultants, many document is the way we planned the markets clients: changes to their strategy, Built for mission-critical software, Undo’s are contractors, all are in the vanguard of programme, however there may have business processes and technology by providing products are trusted by the world’s largest thinking about programming, software to be last minute changes. If there content-rich expertise in a cost effective manner. technology firms to quickly resolve defects development, and how to do it better. are, they will be tweeted via hashtag Our global network of independent expert in complex applications across all phases of The ACCU Conference is rightly proud #ACCUConf, and the webpage https:// consultants enables our clients to access a deep the software development life cycle, allowing of the ACCU (the organisation) banner flame.firebird.systems/archer-yates/ pool of professional knowledge ranging from them to accelerate software delivery, and more “professionalism in programming”. ACCU2021/MyProgrammes#Programme. individual technical specialists to project teams quickly resolve customer issues. Along with its C++ core content, ACCU ItemPage.104.0 will be updated. and full consulting solutions. With offices in Cambridge, UK and San Conference always has sessions relating to Our Code of Conduct - https://accu.org/ Mosaic is delighted to support the 2021 ACCU Francisco, CA, Undo’s solutions are used by languages such as C#, D, F#, Go, Haskell, conf-menu-overviews/coc_code_of_ conference. The largest (and rapidly growing) thousands of software engineers across leading Java, Kotlin, Lisp, Python, Ruby, Rust, and conduct/ - is of course valid for this online part of our business is helping clients solve technology companies including SAP, Juniper, Swift. Also there are always sessions on conference. In case of any concerns or hard technical problems, so we welcome Cadence Design Systems, Actian and Mentor TDD, BDD, and how to do programming problems, please do not hesitate to get in ACCU’s focus on developing professionalism (a Siemens business). right. It isn’t just about the programming touch directly with the organizers, via the in programming and improving programming languages, it is also about the tools and Discord channel. skills. A number of ACCU people are key techniques of programming. members of our teams delivering complex This is ACCU 2021, enjoy the keynotes, projects for our clients. We are always growing The core of the ACCU Conference is sessions, quickies and lightning talks. Use our expert consultant network and want to hear about developers who want to share their Twitter with the hashtag #ACCUConf. Chat from exceptional technical professionals whose experience in the form of presentation with all the exhibitors, and with each other. outstanding track records attest to their proven and interactive workshops with other ACCU is a conference for conferring! expertise and problem solving skills. To learn more about what we do please get in Felix Petriconi touch: www.mosaic.fm or email [email protected] Conference Chair 2 3 2021 CONFERENCE SESSIONS INFO 4 5 SESSIONS SESSIONS Tue 09 Mar 10:00-18:00 Tue 09 Mar 10:00-18:00 Also many talks on C++ explain the modern Tue 09 Mar 12:00-20:00 features and show how they work, but only few put Title Oral Session Title Oral Session things into context and show what to give up and Title Oral Session Presenter Gail Ollis Presenter Mateusz Pusz how things combine sanely. I am guilty of that in the Presenter Sean Parent Presenter Kevlin Henney Guest Presenter Sean Parent 2021 past as well, e.g., with my constexpr compile time Presenter Giovanni Asproni computation talks at ACCU. This full day workshop 2021 Presenter Chris Oldwood Modern C++ Idioms is the result of thinking about that. It won’t show Presenter Roger Orr 1 C++20 feature by feature, but gives a coherent set Better Code Chair Gail Ollis MATEUSZ PUSZ of practices to improve your design and code using SEAN PARENT1 Guest Presenter Kevlin Henney 1 Epam Systems | Train IT, Gdansk, Poland existing standard C++ features where they give 1 Adobe, San Jose, The United States of America 0043 C++ is no longer C with classes and it never was you benefits. We will cover the following topics: * designing function interfaces in a way that they are ACCU 101: Early Career Day only an Object Oriented language. C++ is a general A workshop based on the Better Code series of purpose programming language. It has imperative, easy to call correctly and hard to call incorrectly * lectures with opportunities to experiment and GAIL OLLIS1, KEVLIN HENNEY2, GIOVANNI object-oriented and generic programming features, how to report function contract violations (at least discuss the ideas presented. Writing code is ASPRONI3, CHRIS OLDWOOD4, ROGER M. while also providing facilities for low-level memory 5 different ones) and their individual benefits and challenging, especially writing efficient code on ORR5, JON SKEET6, JEZ HIGGINS7, ARJAN VAN manipulation. If used correctly, it provides hard to liabilities, so you can make a conscious choice. * large projects. We’ll cover types, algorithms, data- LEEUWEN8 beat performance. Such usage requires a good what parameter passing style and return value style structures, runtime polymorphism concurrency, works best under what conditions * how to create 1 knowledge of C++ templates and Modern C++ and relationships. Each section provides insight Several universities, Bournemouth, Portsmouth, (parameter) type wrappers to avoid passing wrong 2 Idioms which are much different from commonly into how to reason about your code and specific Open University, United Kingdom Curbralan, arguments * class design for simple value wrappers 3 known design patterns popularized by GoF book techniques to build better code. The prerequisite Bristol, United Kingdom Unknown, London, United to improve function interfaces * mix-in strategies for 4 and invented to handle common use cases in pure for this course is a basic understanding of C++. Kingdom Freelance, Cambridgeshire, United functionality and operators, so that creating value 5 OO languages like Java or C#. What you will learn: Developers at all levels will learn some new ideas Kingdom Freelance, London, United Kingdom wrappers is simpler * provide an overview of class 6 7 During the workshop, we will refresh and broaden and techniques to improve their code quality, Google, London, United Kingdom Freelance styles, e.g., value, manager, oo-bases and show software grandad, Birmingham, United Kingdom 8 our knowledge about C++ templates and will learn efficiency, and readability. Requirements: Please Modern C++ Idioms like Niebloid, EBO, CRTP, Type how to select from the rules for special member come prepared to run a C++17 command-line Unknown at time of submission, Unknown at time of functions * take a look at the lesser known C++11 submission, The Netherlands Erasure, and many more.