C++17 : The Biggest Traps - Nicolai Josuttis [C++ on Sea 2019]

cpponsea.uk
C++17 is a huge combination of small new features both in the language and the library. These features have more poser but also more traps than you might expect. These traps are not theoretical. They already occur in real-world programming. This talk will list and discuss all these traps, explain the reasons for the underlying design, and give guidance how to deal with them. As a side effect you will learn a lot about some cool new features of C++17.
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Nicolai is an independent systems architect, technical manager, author, and consultant. He designs mid-sized and large software systems for the telecommunication, traffic, finance, and manufacturing industries. He is well known in the C++ Community for speaking and writing with authority about C++ (being the author of 'The C++ Standard Library', 'C++ Templates', and 'C++17 - The Complete Guide') but is also an innovative presenter. He is an active member of C++ standardization committee for more than 20 years now.
cpponsea.uk/2019/sessions/cpp...
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[@spinthma]

As I jumped from classic C++ 30 years ago into C++17, I find this talk highly interesting. I learned a lot

[@mwont]

Excellent talk! Learned lots. All Nicolai talks are useful.

[@Voy2378]

Knew a lot of this, but still some great new insights(fs, pmr, reduce)...

[@pleiadiblu2365]

Would it be possible to come up with standards that have fewer traps?

[@gl3906]

did somebody learn something? - yes, indeed: go for somethng else...to me it seems C++ 14+ is a mess, only applicable for very advanced sw developers. (...messed up by too many extensions and enhancements beyond the initial design)

[@Newtube_Channel]

Not at all. 14+ reduces the number of lines of code in your project even further.

[@SciDiFuoco13]

@@Newtube_Channel that has nothing to do with the language itself being too bloated.

[@pt8306]

I agree. C++ is effectively two languages now. Someone needs to make a new spinoff of C++ that ONLY implements the "modern C++" stuff and fixes all the other crap. I might give Rust a try, it seems like a good language.

[@Newtube_Channel]

@@pt8306 It is not because by your argument is _n_ languages pertaining to every different style of writing. You don't know what you're talking about.

[@pt8306]

@@Newtube_Channel Cool. Now try expressing that as a sentence

[@saulocpp]

Look at the title of the video: "the biggest traps". The committee is doing a great job in making the syntax look more horrible and unnecessarily confusing at each iteration, hence the need for hordes of videos to explain this much gibberish. Why keep such an expressive language simple if such basic things like initialization can be overengineered and cause the problems discussed in the beginning, or the if/switch changes to use "new feature", nested curly braces junk and general fixes to things that were not broken? Thankfully Dijkstra is not seeing any of this.

[@Newtube_Channel]

Your claim is well off the mark.

[@____uncompetative]

C++ is used by simpletons who value cleverness over wisdom.

[@TheMrKeksLp]

@@Newtube_Channel Please go watch some C++ Weekly videos and then tell me C++ isn't overengineered in every aspect

[@makerofstartup7902]

Didn't liked it at all