Constant fun (const fn) with Rust - Rainer Stropek - Rust Linz June 2022 

This is the first time I have actually understood the const fn stuff. Very informative video. Thanks

Rainer, I absolutely love your presentation style, clear, concise and easy to understand! Keep up the great work you're doing for the Rust community!

What an incredible world! So much app initialisation startup time can now be removed and be pre-compiled! Yet another mechanic of rust that makes it wasteless and amazing!

Rainer is so good at teaching. Thank you and please continue :)

I hadn't realized i could get around the inability to include a for loop by using while... I just assumed it was all loops that weren't handled in const functions. Thanks!

I absolutely love the content. That being said, I do wonder if there's a way to censor / blur the WhatsApp notification as 28:28? It's unfortunate that it came up, but worse for me is: It's giving away the name of someone unrelated to the video and (as a German) it's .. unfortunate/private information shared in the text. I'd expect that the person sending the text would prefer it to not show up on RU-vid (but then again, maybe Rainer cleared it with her).

Thank you. Great to have a beginner friendly tutorial.

You give such great talks/tutorials. Thank you!

That's totally awesome! It really easy to catch and I did learn quite a lot!

Amazing stuff Rainer!

Great video. Thanks you a lot!

What are the performance differences between const function executions at compile time vs. regular run time (both unoptimized and optimized builds)? Let's say I have a very time-consuming const function that evaluates some mathematical/numerical calculation stuff (execution time in tens of minutes). Is the compile-time execution of that code as performant as an optimized release build running the same code at run time normally would be?

I love this explanation 🔥

Love the title! And I'm loving your channel; perhaps inspired to take Rust seriously! (We shall see...)

My reaction to this: 🤯😍

Excellent video

Great video! I'd be nice some extra levels of zoom to be more phone friendly.

So Good!

does anyome know what's the extension to show warnings and errors after a statement?

Scratching my head when I heard "const Mutex"... Oh it was static constructed at compile time!

Hello Rainer, awesome talk. Would you be kind to share the git repo with samples, here?

so const fn mean "constant fun" ? Nice. god bless us.

Toller Vortrag, vielen Dank!

Will for-loops eventually be available in const fns? Why isn’t this possible now?

Just for the title joke, I'll watch it...

Even more reasons why Rust is criminally too good

So immutables are completly useless right? Over this immutable and mutable should be switched!, cause reusing variables occurs a lot more! Rust feels unnessesary complicated and confusing!