Lieven de Cock - Type Punning, the joke is on you, pun intended

Many codebases contain several spots of type punning, and unfortunately a whole lot of those are incorrect and undefined behavior. While many current versions of compilers seem to do the correct thing, they might no longer do that tomorrow. Safety considerations wants to reduce/eliminate UB.
It might be worthwhile to inspect your reinterpret_cast constructs, most probably they are wrong. In this talk we will inspect what is wrong about those, we will learn about alignment, strict aliasing, object lifetime. 3 areas which might flag a red card on our type punning constructions.
Luckily the language evolved and gave us more tools to do it correctly, things like memcpy, memmove, bit_cast, start_lifetime_as, launder. It does however remain a dark corner and a dangerous territory to wander in. Because let's face it, zero copy is something we love in C++, and those bytes that came from the network, really are an array of integers, array of coordinates, ... Compiler, trust me, I know what I am doing. Am I?

Lieven is a passionate software developer, architect, team lead, manager, coach, with 30 years of experience. He is passionate about C++, software craftsmanship, and clean code. His career started in the text-to-speech domain and then moved to video recognition technology for  traffic environments. During the last 15 years he is active in the satellite communication industry. Lieven also contributes to several open source projects and is the lead developer of the open source IDE Code::Blocks. He is also the lead coach of the Coderdojo division in Ghent, Belgium where he lives. A major focus is on sharing knowledge on C++, coaching people to grow in C++, and maintaining and raising the bar on quality.

Herb Sutter - C++: Growing in a world of competition, safety, and AI

These are exciting times for C++. This talk will cover why to be excited about the new C++26 standard, which is expected to be technically finalized 48 hours before this talk. More broadly, it will cover why C++’s strong market growth — and the strong growth of human software development in general — are likely to continue for the foreseeable future in a world of explosively growing software demands for performance, security, and AI.

Herb is a technical fellow at Citadel Securities, designer of several Standard C++ features, chair emeritus of the ISO C++ committee, and chair of the Standard C++ Foundation. His current interest is simplifying C++.