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Monday, September 24 • 16:45 - 17:45
Class template argument deduction in C++17

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Class Template Argument Deduction (CTAD) is a very useful C++ language feature that was added in C++17. This talk is a comprehensive and practice-oriented introduction to this new technique.

In this talk I'll present how CATD and automatic deduction guides let you write cleaner and shorter code, show how to interact with it when using the C++ standard library and when designing your own classes, explain when and how user-defined deduction guides should be used, and cover the language rules behind all of this.

We will also discuss the various pitfalls that lie in wait: wrong and surprising template arguments being deduced, your constructor not being selected even if you think it should be, and automatic CTAD sometimes leading to unsafe and broken code – and how to circumnavigate those pitfalls.

Speakers
avatar for Timur Doumler

Timur Doumler

JetBrains
Timur Doumler works at JetBrains, where he develops the C++ frontend for CLion, the cross-platform C++ IDE. In the past he has spent much time working in the audio tech industry and has written code for the JUCE framework. Timur is an active member of the ISO C++ committee and passionate... Read More →


Monday September 24, 2018 16:45 - 17:45
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Attendees (34)