So You Think You Can Hash - Victor Ciura - CppCon 2024

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#cpp #cppcon

So You Think You Can Hash - Victor Ciura - CppCon 2024
Slides: https://github.com/CppCon/CppCon2024/blob/main/Presentations/So_You_Think_You_Can_Hash.pdf
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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.

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Victor Ciura

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.

https://www.youtube.com/watch?v=lNR_AWs0q9w