A College Friend of mine has offered last year a free C++ course for everyone who is interested, this year he is doing the same in Rust. This guy can explain and gives a big part of his freetime for this.
He is just amazing.

Thanks to everyone who shares his/her knowledge!

Hey everyone!

I'm on the hunt for new and exciting languages!

I'll state the ones I already know:
Python, Haskell, C(++), C#, Java, JavaScript, Ruby, Rust, Lua, about every kind of Basic, some branches of Lisp, BrainF**k, assembly, Octo (Chip-8) and GML(basically JavaScript).

I've also learnt some styling languages:
Html, CSS, Markup and Markdown.

Some misc languages too: Regex and a runny bit of the Wolfram Language.

Also I'm kind of limited to Windows, Linux and Android, as I do not own any Apple hardware except I have access to an old iPad, so are languages like Swift still good?

Thanks!

Just when I thought I fixed the error and finally made rustc happy, I got loads of other errors.

Thanks, that smiley is direly needed to cope with the bizarre language that is the ABI stable subset of Rust.

rust is a gateway drug to plumbing

thanks, search results

Actually kinda sad, that there is no pure rust ui framework out there, but rather mere adaptations of c/c++ frameworks for rust. It's better than nothing for sure, it just would be nice, if i could use a framework, that doesn't create a massive memory leak, because i looked at it funny.

In particular i'm using fltk-rs, and everytime I'm applying a font to some widget, 500kb get added as leaked memory. Doesn't sound like a lot, but for one it's a dynamically built application, so the order and amount of widgets changes, and this application is supposed to run days, if not weeks.

thanks to heaptrack i was able to pinpoint that to libpango, which i'm not even interacting with directly, but rather indirectly through the api.

Annoying, that i chose to use a language for actively preventing leaks and dangling pointers and stuff, but end up leaking memory because of a dependency somewhere.

Finally!! The rust team fixed the environment setup thingies for Windows. Finally! I can run rust without needing to do all those bullshits like downloading things manually and installing thingies.
Thanks rust team. Good job

*rewrites rust mpsc*

you did it wroooong

I thought my threads were locking if I had thousands of jobs spawning thousands of more jobs. turns out it's fine. actually if I organize my data locks in the way everyone wants to do them my CPU fans go off but my original way you don't feel jack shit and processes faster

turns out it's because 320k jobs is a bit much for mpsc. because my jobs can spawn more jobs the whole thing just grinds to a halt. and there's sync-mpsc which allows you to have a maximum number of data you send through it, therefore I can just have 245 sent jobs instead of 320k but then this locks all the threads because for a thread to finish it needs to finish sending jobs, but a sync mpsc won't let you send a job if current jobs are over the specified limit. so all the threads get stuck sending jobs. smart. not. what's even the point of that?!

and evidently there's no built-in way to prioritize certain jobs. the AI thinks you should just send jobs in and each thread should have a priority queue. I don't know sounds dumb to me. then you could by random luck have threads with lots of jobs that need to be prioritized to be done and other threads stuck hanging waiting for previous jobs / the other threads. no thanks

so clearly the solution is to rewrite mpsc but allow prioritization when a thread goes in to ask for a job to do

since my jobs are intended to start other jobs, it makes sense to have no actual upper bound limit to the number of jobs in the queue but to favour doing jobs that won't start new jobs to lower the RAM and compute necessary to juggle all this

hope this is the actual problem. cuz the code works for like 200 jobs spawning 500 jobs each, which is 100k jobs total
but it stalls to a halt doing 8300 jobs spawning 500 jobs each (which if I do the math -- in my tests it stalls at 320k jobs and seems the number should be 4,150,00 jobs -- yeah I think this is probably the damned problem)

I know this is a recurring question. What language to learn in 2018?
Kotlin, scala, elixir, rust, go, ...?
I need something practical and preferably a language that at least partially supports functional programming patterns. Oh and also I don't want to learn Haskell. Thanks.

Ok, so I recently have been losing interest in coding outside of work. I wasn't like this idk what happened. I mainly work on frontend and backend but mostly frontend. I can feel my inner self wanting to code but idk what to do, do I build something?, do I learn a new language? I heard rust would be the best language to know in a post-apocalyptic world.

Any recommendation and what to do to get back my coding vigor? thanks

rust can't even do rustfmt properly

it just does things unadvertised

like reorder_impl_lines which is described as putting type and const on top of files adds new lines between fn declarations and that's not disclosed anywhere. ffs took me a while to figure it out

and chain_width should be different for fn calls and match statements. because newlining multiple fn calls makes it readable, but newlining match statements and wrapping them in {} does not / makes it ugly. there is match_arm_blocks but it still newlines random stuff awkwardly, raaghh

I thought hey so cool I can write without caring about formatting and just press Ctrl + shift + i and all done but now I'm arguing with the formatter and the settings available suck and are poorly described. please don't write a formatting documentation with no examples, wtf? And disclose everything it does, preferably with consistent language so I can search the page (some of the descriptions say new line others call a new line a break. thanks)

So I'm writing my compiler and I decide to test error handling, see if I'm catching unexpected tokens and whatnot. I try duplicating a semi-colon at the end of a line, for sure it'll give me an error since that's an unexpected token, isn't it? So I run the compiler and... No errors? I start debugging for a few minutes, snoop around, everything seems ok... "Huh, that's weird" and then it dawns on me, a semi-colon only marks the end of a statement. So, technically, it's not an unexpected token if you have an empty statement (which wouldn't break any rules about statements). I decide to try out my theory. I put ;;;;;;;; at the end of a random line in my rust code, hit compile and... it compiles! So that means it is not a bug anymore! I mean, if the big guys that actually know a tad about language design, compilers and all that cool stuff allow it in their languages, why shouldn't it? So I did it, I turned a bug into a feature and now I can go to sleep in peace and stop dreaming about fucking abstract syntax trees (don't mind my kinks >:) ).

Yeah anyways thanks for reading, till next time! Bye!