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Tuesday, May 7 • 14:30 - 16:00
Better CTAD for C++20

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Class Template Argument Deduction (CTAD), introduced in C++17, is a useful feature that allows us to write cleaner and shorter code by omitting class template arguments. Unfortunately, the actual language rules behind CTAD are quite complex, and there are many pitfalls. CTAD sometimes deduces unexpected template arguments, and often just doesn’t work at all on certain classes, even if most users would expect that it should.

This talk summarises the actual language rules behind CTAD and its most annoying flaws and pitfalls. We will then talk about how the upcoming C++20 standard will remove some of those flaws, leading to better and safer CTAD that is easier to use.

avatar for Timur Doumler

Timur Doumler

Developer Advocate, JetBrains
Timur Doumler is C++ Developer Advocate at JetBrains and an active member of the ISO C++ standard committee. As a developer, he worked many years in the audio and music technology industry and co-founded the music tech startup Cradle. Timur is passionate about building inclusive communities... Read More →

Tuesday May 7, 2019 14:30 - 16:00 MDT
Hudson Commons