CppCon 2018: Jon Kalb “Copy Elision”

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Presentation Slides, PDFs, Source Code and other presenter materials are available at: github.com/CppCon/CppCon2018
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Lightning Talk
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[@Max-wk7cg]

Stuff like this is why taking time to learn x64 assembly is worth it IMO. Great talk

[@VictorYarema]

This is so underrated video for some reason. Great talk! Thanks!

[@srcmake]

Wow this makes a lot of sense. I'm definitely going to keep this trick in mind from now on. Thanks!

[@bimmerboard]

That's an excellent explanation! Thanks!

[@szppeter9482]

Awesome talk, crystal clear.

[@thiagosantos666]

Great talk, thanks!

[@cumuIonimbus]

I love this guy.

[@kennethstauffer9220]

what happens of if an exception is thrown after some write has occurred to the return value? and the assignment to the return value never occurs?

[@Vicinalace]

Then it's not RVO'd. Methods that return values that are modified through methods that have side-effects can't be optimized in-place by the compiler.

[@mina86]

The function unwinds stack and calls destructor before it propagates the exception.