© 2018 Bloomberg Finance L.P. All rights reserved. © 2023 Bloomberg Finance L.P. All rights reserved. 1© 2018 Bloomberg Finance L.P. All rights reserved. © 2023 Bloomberg Finance L.P. All rights reserved Senior Software Engineer Alistair Fisher, Engineering Team Lead 2© 2018 Bloomberg Finance L.P. All rights reserved. © 2023 Bloomberg Finance L.P. All rights reserved. Speaker introductions Alistair Fisher Koyrushki Senior Software Engineer, Multi-Asset Risk System (MARS) 3© 2018 Bloomberg Finance L.P. All rights reserved. © 2023 Bloomberg Finance L.P. All rights reserved. Agenda • Motivation: Why do we care

© 2018 Bloomberg Finance L.P. All rights reserved. © 2024 Bloomberg Finance L.P. All rights reserved. 1© 2018 Bloomberg Finance L.P. All rights reserved. © 2024 Bloomberg Finance L.P. All rights reserved 2024 Sherry Sontag, Technical Expert CB Bailey, Software Engineer© 2018 Bloomberg Finance L.P. All rights reserved. © 2024 Bloomberg Finance L.P. All rights reserved. About Us Sherry Sontag The journalist tools and processes underpinning thousands of applications and shared C++ libraries© 2018 Bloomberg Finance L.P. All rights reserved. 4 Prologue In response to a recent Request for Comment (RFC)

© 2023 Bloomberg Finance L.P. All rights reserved. Exceptionally Bad: The story on the misuse of exceptions and how to do better Core C++ June 7, 2023 Pete Muldoon Senior Engineering Lead© 2023 Bloomberg Real World UsageWho Am I Bloomberg 4 • Starting using C++ professionally in 1991 • Professional Career • Systems Analyst & Architect • 21 years as a consultant • Bloomberg Ticker Plant Engineering Lead world • Take something away and be able to use itBloomberg 5 Questions #include 6 Bloomberg Where will we be going ? • Talk will be about Exceptions as seen in C++ • Look at original goals/ideals

© 2024 Bloomberg Finance L.P. All rights reserved.© 2024 Bloomberg Finance L.P. All rights reserved. Designing a Slimmer Vector of Variants CppCon 2024 September 18, 2024 Chris Fretz Senior C++ Engineer Engineer 2© 2024 Bloomberg Finance L.P. All rights reserved. Overview for this Talk • This talk details my experience in creating a novel solution to an observed problem with memory usage of std::vectorBloomberg Finance L.P. All rights reserved. Motivation • Heterogeneous containers like std::vector

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Bloomberg 1© 2024 Bloomberg Finance L.P. All rights reserved. Dependency Injection in C++: A Practical Guide CppCon 2024 September 18, 2024 Pete Muldoon Senior Engineering LeadBloomberg 4 Questions HereWho Am I? Bloomberg 5 • Started using C++ professionally in 1991 • Professional Career • Systems Analyst & Architect • 21 years as a consultant • Bloomberg Ticker Plant Engineering Lead in the real world • Demonstrate applied principles • Take something away and be able to use it8 Bloomberg Where will we be going ? • Talk will be about inserting meaningful Dependency Injection in applications

© 2018 Bloomberg Finance L.P. All rights reserved. © 2024 Bloomberg Finance L.P. All rights reserved. Can you RVO? Using Return Value Optimization for Performance in Bloomberg’s C++ Codebases CppCon 2024 September 16, 2024 Michelle D’Souza, Software Engineer 1© 2018 Bloomberg Finance L.P. All rights reserved. © 2024 Bloomberg Finance L.P. All rights reserved. Can You RVO? How many people here on “Return Value Optimization”?© 2018 Bloomberg Finance L.P. All rights reserved. © 2024 Bloomberg Finance L.P. All rights reserved. Software Engineer @ Bloomberg Builds code for the solution that helps

© 2020 Bloomberg Finance L.P. All rights reserved. Retiring the Singleton Pattern Concrete suggestions for what to use instead CppCon 2020 September 18, 2020 Peter Muldoon Senior Software DeveloperBloomberg what to use instead.” https://stackoverflow.com/questions/137975/what-is-so-bad-about-singletons Bloomberg 3 Google: The Clean Code Talks - "Global State and Singletons" https://www.youtube.com/watch?v=-FRm3VPhseI what to use instead.” https://stackoverflow.com/questions/137975/what-is-so-bad-about-singletons Bloomberg 4 Google: The Clean Code Talks - "Global State and Singletons" https://www.youtube.com/watch?v=-FRm3VPhseI

© 2018 Bloomberg Finance L.P. All rights reserved. Qcon Beijing April 21, 2018 Biye Li Team Manager, Data Technologies Automation Xiangqian Yu Team Lead, Derivatives Data From Keyboards to Neural Networks Networks 从键盘到神经网络 © 2018 Bloomberg Finance L.P. All rights reserved. What is Bloomberg? The Bloomberg Terminal delivers a diverse array of information on a single platform to facilitate financial financial decision- making. 4 © 2018 Bloomberg Finance L.P. All rights reserved. What is Data Technologies Automation? Challenges – Scale of Financial Information Companies Market Types Speed To Market

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© 2024 Bloomberg Finance L.P. All rights reserved. Remote Execution Caching Compiler (RECC) CppCon 2024 September 19, 2024 Shivam Bairoliya Software Engineer© 2024 Bloomberg Finance L.P. All rights supported by Bazel ○ Single Host Server/Proxy: BuildBox-CASD ○ Distributed Server: BuildGrid© 2024 Bloomberg Finance L.P. All rights reserved. How RECC Works? ● Computes dependency tree with clang-scan-deps parallelism than `-j $(nproc)` without a job server© 2024 Bloomberg Finance L.P. All rights reserved. Real-World Results: ● Stats at Bloomberg: ○ Tens of millions of compiles daily ○ 80% cache hit rate