object, but its runtime value is not fully formedThis isThis isUndefined Behavior!Is C++ safe?Modern C++: move semantics rvalue reference syntaxThis isWidget::Widget( std::list && inGL member functions to “fake” something when moved From */ ~~~~ };Summary ✦What is C++? ✦Uncompromised performance. ✦Achieved by: living with UB, accepting a safety trade-off

Version 1.0 (pre-Wrocław Edition) Timur Doumler CppCon 18 September 2024 Contracts for C++ The Swan, The Pike, and The Crab – Fable by Ivan Krylov, 18143 Copyright (c) Timur Doumler | post (w: w.index() == i); // postcondition assertion Proposal: add contract assertions to C++ Function contract assertions5 Copyright (c) Timur Doumler | @timur_audio | https://timur We are here 2004 First C++ proposal ("D-like Contracts") Ottosen, Crowl14 Copyright (c) Timur Doumler | @timur_audio | https://timur.audio 2004 First C++ proposal ("D-like Contracts")

Irksome C++ Copyright © 2022-2024 by Walter E. Brown. All rights reserved. 1 ACCELERATED EFFECTIVE INEFFECTIVE IRKSOME C++ Walter E. Brown, Ph.D. < webrown.cpp @ gmail.com > Edi$on: 2024-09-19 cs); M.S., Ph.D. (computer science). • Professional programmer for over 60 years, programming in C++ since 1982. • Experienced in industry, academia, consul,ng, and research: � Founded a Computer Science lectured interna?onally. � Re?red from the Scien?fic Compu?ng Division at Fermilab, with specialty in C++ programming and in-house consul?ng. • Not dead! ☺ — s,ll doing training & consul,ng. (Email me!)

COMPOSABLE C++ COMPOSABLE C++ BEN DEANE / BEN DEANE / CPPCON 2021 CPPCON 2021 @ben_deane @ben_deaneIN THIS TALK IN THIS TALK 1. Composability de�ned 2. Composable types 3. Objects and patterns 4 LOGGING From "Easy to Use, Hard to Misuse: Declarative Style in C++" (CppCon 2018) From "Easy to Use, Hard to Misuse: Declarative Style in C++" (CppCon 2018) The The bool bool return type is the key to };"FUNCTIONAL PROGRAMMING" "FUNCTIONAL PROGRAMMING" Functional programming in C++? Polarising? Functional programming in C++? Polarising? Higher order functions that take functions as arguments and return

Engineer CppCon 2021 October 25th Exceptional C++2021 Victor Ciura | @ciura_victor - Exceptional C++ X Abstract When writing code we usually focus our attention on the happy paths - that’s where Ciura | @ciura_victor - Exceptional C++ 3 About me Advanced Installer Clang Power Tools @ciura_victor2021 Victor Ciura | @ciura_victor - Exceptional C++ 4 Online presentation Q & A Use the Exceptional C++ 5 Exceptional C++ When writing code we usually focus our attention on the happy paths - that’s where the interesting stuff happens2021 Victor Ciura | @ciura_victor - Exceptional C++ 6 Exceptional

C++ in the Cloud One NIF at a Time with Elixir Sakshi Verma | Senior Software Engineerhttps://www.linkedin.com/in/sakverma Functional, concurrent language built for scalability. Ideal for managing Here comes the NIFshttps://www.linkedin.com/in/sakverma Native Implemented Functions (NIFs) Call C/C++ from Elixir Compiles to a shared library Loaded into Erlang VM at startuphttps://www.linkedin.com/in/sakverma } else { return enif_make_badarg(env); } } // NIF initialization (maps Elixir function to C++ function) static ErlNifFunc nif_funcs[] = { {"xgboost_build_info", 0 , xgboost_build_info} };

Injection in C++: A Practical Guide CppCon 2024 September 18, 2024 Pete Muldoon Senior Engineering LeadBloomberg 4 Questions #include HereWho Am I? Bloomberg 5 • Started using C++ professionally Systems Exceptionally Bad : The Story on the Misuse of Exceptions and How to Do Better (Exceptions in C++ : Better Design Through Analysis of Real-World Usage) Software Development Completeness : Knowing when

20243/55 About me - Andreas Weis (he/him) ComicSansMS cpp@andreas-weis.net Co-organizer of the Munich C++ User Group4/55 The story so far...5/55 Where we left off...6/55 The coroutine return type ReturnType7/55 C++26 senders/receivers are a first step in this direction, but a lot is still in development there C++ Coroutines are much more flexible than async/await in other languages. It is not yet clear what the

Andreas Fertig Write unique code! Fast and small C++ When efficiency matters Presentation Material CppCon, Aurora CO, 2024-09-17© 2024 Andreas Fertig AndreasFertig.com All rights reserved All programs Franziska Panter https://franziskapanter.com Production and publishing: Andreas FertigFast and small C++ Style and conventions The following shows the execution of a program. I used the Linux way here and resulting in a.out as the program name. $ ./a.out Hello, C++! • stands for a header file with the name string • [[xyz]] marks a C++ attribute with the name xyz. © 2024 Andreas Fertig https://AndreasFertig

2 cppfront: Recap Safety for C++ 50 esp. guaranteed program-meaningful initialization Simplicity for C++ 10 esp. for programmers cppfront: What’s new Types, reflection, metafunctions, … Simplification Compatibility for C++ Why • What kind • What plan3 green-field language invent new idioms/styles new modules new ecosystem/packagers compatibility bridges refresh C++ itself make C++ guidance default default make C++ modules default keep C++ ecosystem/packagers keep C++ compatibility this talk4 What could we do if we had a cleanly demarcated “bubble of new code,” via an alternate syntax for