Rust vs C++
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- Опубликовано: 15 июн 2024
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0:00 Intro
0:12 C++ Overview
0:30 Rust Overview
0:57 Memory Management & Safety
2:16 Difficulty
4:09 Performance
4:25 Community & Ecosystem
5:39 Use Cases
6:25 Conclusion 
Наука
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C++ is not an OOP language. Its a multi-paradigm language which lets you develop Object oriented systems. You can mix and match various paradigms to solve your problem as it seems fit. It doesn't force you to follow a certain methodology. For example : in OOP languages like Smalltalk and Java, everything is an Object which certainly not the case with C++.
If the C++ committee wanted us to do FP they wouldnt have made us type out S-T-D-Colon-Colon-Function every time we want to pass a function.
I’m mostly with you, however the standards committee is trying. Newer versions of C++ are introducing much more convenient functional-programming style features. See std::ranges and improved lambda support with the auto keyword.
They can’t change older versions of C++ or remove features, so adding new features is all they can do, and they’re doing it
@@kasufert No, just use auto with appropriate invocable concept and you're all set. For E.g. : void process(std::invocable auto func) { .... }
the process function takes an invocable that accepts a string_view and returns an int.
@@aniketbisht2823 C# only requires Func or Action for a function variable, or x => f(x) for a lambda. I’m not saying C++ doesn’t have those features but the syntax is quite cumbersome.
@@kasufert That's just the standard version. You can also define your own concepts which are much more specialized and compact (less verbose). C++ lambda expressions are only slightly more verbose than C# because more things need to be accounted for like captures, template parameters, attributes etc. If you want one-liner lambda expressions, a widely used library to do that is Boost.Lambda2.
6:45 clearly this was a secret coded message to tell us to use Go
The Rust compiler praises the developer and the Rust developer praises the compiler
Not with c++ though they hate eachother
Unless your fighting with the borrow checker.
@@0xfadead Just listen to the borrow checker and watch everything go well with your program
Bruh ..... Just write a Memory safe c++ code... Which is less verbose than your newcommer language...
@@0xfadead Times I fight with borrow checker is not that much. Though in fairness, I've been programming rust since 2020.
C and C++ will never be replaced, in the past 30 years so many languages have risen and fallen, but C (especially) and C++ have really stood the test of time
C++ will lose to Tha Rust Propaganda
Other languages simply didn't offer what C and C++ did in terms of low level control. Rust does and does it better.
The Ottoman Empire will never be replaced, in the past 500 years so many countries have risen and fallen, but the Ottomans have really stood the test of time
I think C/C++ will be replaced when all of the children of people here watching this video die of old age or AI takes over all the programmers's jobs. But, seriously, Cobol is still being used widely.
@@kasufertChina, Egypt (and others I cannot remember) have been along for thousands of years, while other countries have risen and fallen.
If you want to be a true backend developer, master both languages, C++ (especially latest standard) and Rust.
Thats way better ! You've improved a lot the quality of the video compared to the old one ! You took reasonable arguments from boths sides and it seems alltogether way less biased.
Bravo !
Respect for improving the video after constructive feedback from your viewers. This sadly isn't a matter of cause anymore on RUclips. I think it's an amazing video now.
Greetings from Germany❤
The main reason why learning c++ is still the better option in my opinnion is that everyting serious is written in it, so you have infinite resources to learn software development straight from the source. For example, amd’s fsr3 is open source and written in c++, want to know how it works? Helps a lot if you know c++
"Serious"? Same thing goes for rust, although I agree with your point about the "infinite resources"
@@skyline00069 yeah, with the full meaning of the word ”serious”. Here are some places where C++ is the language of choise: operating systems (even though c is still used in the kernel), game engines, games (unity is the only platform place where language other than C++ builds AAA games), cars, aviation, space, ai, robotics, audio, databases, etc etc etc. Rust can do these things but C++ is still the ”industry standard” in real world and performance critical applications, so basically in everything else than webdev and enterprise code aka java.
So i think that can be summarized as ”basically everything serious is written in c++”, you don’t see cars driving around with rust running in the drive computer.
@@aboliguu1168 Why do you think that is? Rust is a newer language, and it only recently started getting backed by mozilla, while C++ is a really old language that most companies have been using for years, even decades on end that wouldn't benefit from switching to Rust.
@@aboliguu1168 not yet, hihi
Spot on! I also agree with you on this. It'd be better for a beginner to thorougly learn C++ first and switch to Rust afterwards.
I love how you remade the video. Btw, I was in your drunk VC, but I was troublehsooting an issue with my mic, so I couldn't talk.
Edit: Remember when you were making something, and it wouldn't work, so you had to make a new project and start over? The problem was with your 'debug' script, it was attempting to run "/src/index.js" but you didn't have an src folder.
Yeah I was way too drunk to be socialising or programming 😂
Nice! The video truly is much better after the remake, thanks for owning up to your mistakes and handeling critisism so well :)
"In fact jesus himself used c++ whitch is probably the reason why he was crus-" that really got me 💀
You could say that he...
...nailed it.
@@yarpen26 bro...
Bro that literally made me spit out water
Lame
That was wild as a Christian 💀
This video got uploaded just when I needed it
Thank you for getting it right this time. I respect that.
Problem with Rust for writing low level code is that, not only you have to jump through several hoops to do what you want (get desired assembly with zero extra overhead) but the resulting code is very unreadable and also difficult to change. Readability and the ability to quickly change/iterate through multiple implementation strategies (with their own trade-offs) is crucial for writing performant low-level code. The language also enforce various runtime checks (which cannot be disabled at runtime like C++ asserts), so even if you strive hard to write correct code by using formal methods, testing it religiously etc, you would still be paying for them at the runtime or your code would be littered with unsafe blocks (which defeats the whole purpose while also making you code less readable).
You do not understand unsafe in Rust. Unsafe does not defeat the purpose of rust’s memory safety. All of Rust’s smart pointers use unsafe under the hood. The idea of unsafe is to write code where you handle “unsafe” operations and wrap it in a safe way so that when you call the function or block, the user can use it safely. By itself, you can’t do memory unsafe things with Box or RefCell or Rc because the “unsafeness” was abstracted away.
Also readability is subjective and a function of experience. If you code a lot in a language, idiomatic solutions are very readable to you in that language.
@@irrelevantgaymer6195 I never said unsafe Rust defeat the purpose of Rust's memory safety. In fact, that's the whole point I am making, unsafe Rust is tedious. If you want performance you have to write low-level code catered to your specific needs and then wrap it in nice zero-cost abstractions for application programmers to use and make it generic without giving up functionality or performance. Both C++ and Rust have good feature for providing abstractions (C++ even more so). But when it comes to writing low-level code, in Rust you have to jump through several hoops which makes it tedious to write whereas in case of C++ it's just C which is just simple as it gets. When you are solving a hard low level problem, things should be as hard as they fundamentally hard not more. Rust gets in your way (even while writing unsafe Rust) and makes it harder and more complex than it needs to be.
On discovering Rust and evaluating it for up and coming projects I rewrote quite a few of my not so big C/C++ projects and libs into Rust. Performance turned out to be similar, sometimes slower sometimes faster. No, I did not use "unsafe" anywhere.
As for those run time checks. There is only array bounds checks as far as I know. Oh and arithmetic overflow checks in debug builds. Often they are optimised away by virtue of the compiler having more information about what your code does. Often they are a vanishingly small part of execution time. Either way they seem to have negligible effect on performance. I have lots of number crunching code that operates on arrays to demo that.
So no, there is no problem with Rust for writing low level code. You are only speculating that having not tried it or measured it.
@@irrelevantgaymer6195the “unsafe” keyword in Rust is terribly misnamed. It doesn’t mean the code is unsafe, it means you declare to the compiler that you have manually checked the block’s safety.
@@eypandabear7483 I don’t think it’s misnamed, but it is a bad name. I think the name itself leads people to use unsafe when it’s the best solution to the problem.
4:19 The java virtual machine sometimes it's kinda wild lmao.
Actually it is really fast, in most cases even faster than code in c++ because the c++ developer has no clue what he is doing 😂🤣
Of all the points, I cannot agree that C++ is a better option for larger scale applications. When there are multiple people working on a project, it's so hard to keep track of reference lifetimes or multithreaded safety, and that's where Rust absolutely shines - it will hold your hand and tell you that your code is unsafe without digging into other people's code.
Agree
Lockheed Martins F-35 runs on and uses C++
There are hundreds of thousands of jobs within C++
Amethyst is long dead, bevy holds the torch (and fyrox ofc, though its community is way small compared to bevy even though codebases are in similar size). There are lots of small frameworks or engine agnostic libraries that one can use for their own framework.
Just use whatever you want, I don't think it ever had any point on this discussions.
Obviously it does not mean the discussions in are pointless, in fact it is pretty needed because security in software development, but for most people this does not matter most of the time. You should engage in these discussions when you are actually planning on making something that can affect peoples lives if it fails, and discuss why it is not more justified to use a language that is built to be safe instead of one associated with unsafety. People have good points on both sides, like static analyzers and the dont's of static analyzers, but the discussion does not make sense if you are making a game or a simple software, chill and make it wether in Rust or C++ or really anything at all.
Rust and Rust's memory safety and management is inspired from C++'s RAII.
It can be a funny video to try the QUICK protocol. I don’t have a idea what project you can do. But I think it’s interesting
For more clarifications please, Rust was announced 2010 and got stabled 2015
The only realistic benefits to pull developers to rust was supposedly faster build time. In fact, c++ build time is said to be generally faster, which is already strike out. If c++ 20’s module system works out and unfolds greatly, I think theres no hope for rust in future. As theres no reason to move.
0:24 well it's **nearly** a superset
C++ Countless features. You got me there
y not just do what nim did? (but without indentation cuz screw that) make high level code compile to c++, and add option to write c++ for control. 🤔
6:38, to me, if I have flexibility, I have everything! (theoretically)
any video courses you can recommend for c++? for beginners?
there's tons, just type C++ tutorial for beginners on youtube and you'll find a 10 hr long tutorial
c++ while annoying is rewarding and challenging. Other languages, well.... is easy >= aneurysm?
but also c++ is probably the most flexible language there is.
4:45 “a lot of people enjoy this approach”, referring to “doing more work to link packages correctly”.
Is this a serious argument that I’m not getting. Is there some example of a benefit?
I do get that for someone who knows that approach it is just a part of life, but would you recommend that to someone picking up programming tomorrow?
Which language to learn? Both, if you have the time. They are really not that different. Once I rewrote quite a complicated project from Rust to C++ in 4 days.
Which language to use? Depends on the use case, and what coding style you're most comfortable with.
You glossed other linking and library management, also cross-platform development. Rust makes it trivial to develop for (and on) several platforms with nearly no extra effort. I write something on Linux for days, and then it just compiles on my Windows machine no problem.
Currently Rust would be best choice for servers where you cant/dont want to use gc lang else C++ specially For game dev C++ is the overlord for highend graphics
Bjarne Stroustrup's sacred word has already been written, many false prophets have already tried to kill his message, and many will still try, but C++ resists!
(This is just a joke guys, but yes, C++ is still better option).
There are no "better" tools, there are trade-offs. Some tools are better in some jobs than others.
@@yokunjon I agree.Use rust where it makes sense and use c++ where it makes sense.Same for any other language.
didnt this video come out like 2 weeks ago
Your video inspired me to write a blog on the topic, thanks a lot, great job.
Forget C++ or Rust just learn C.
If you know c++... You can easily learn c
forget C learn assembly
@@sankalppatidar4975 Assembly? Real programmers use pure binary
@@sankalppatidar4975 forget all language and back to the stone age
I had this exact mindset for quite a while, however, since I'm mainly coming from object oriented languages like Java and C#, I always felt like C's type system was lacking some things. Mind you, I'm not one of those people who think OOP is the solution to everything and bloat their program with an excessive amount of classes for things that don't really need them. I like the simplicity that C's type system has, but for me personally, I think it's just missing some things.
I was hoping that C++ would solve that problem for me, but the moment I tried to make a simple C struct and C++ literally prevented me from doing very basic things with it that are possible in C, I dropped the language immediately and went back to C.
Then I decided to give Rust a shot, and imo it's a perfect middle ground. Its type system allows for very simple things in the way C does (if you just want a small, basic struct that you want to be able to copy around, just give it the Copy trait and the borrow checker will leave you alone, SOMETHING THAT EVEN C++ WAS NOT CAPABLE OF FOR ME), but also has more advanced features like Traits (which are similar to interfaces). Tagged unions are also a built-in feature (kinda misleadingly named "enums", though they CAN be used as regular enums as well) which is really powerful.
Which computing languages should i learn to be a pro in cyber security and cloud hacking?
Security is a field for which you need years of experience. There are no languages one can learn to easily be proficient. It would be C and probably some bash though.
Learn how assembly work and maybe some C
It doesn't really matter with which language you start.
nikkiinit RUclipsr says learn python, linux and sql--cyber mentor RUclipsr says to learn javascript and python--hmmm good luck
i already watched this didnt i
Me too...
same :|
pretty sure this is a reupload, not sure why tho
Yeah, its a re-visit with improved points
The Jesus frame got removed
I love your channel
C++ team:
In my opinion c++ should improve on error detected with g++ and gcc complier and c++ should include most optimise code in c++23 such math_23 something like that
What are your thougts on Zig, is it worth learning?
imo, learn it, then you would know if its really worth it..
but if you're choosing what to learn first, I'd say:
C ➡ C++ ➡ Rust ➡ Go ➡ Zig
Every language is worth learning if it really is the best choice for a project, even if only for learning different ways code can be written. If you already know languages that allow you to get work done, I suggest spending time mastering those instead of learning another you might never use. I would also advise you to ask about Zig to Zig experts, not Rust ones haha.
@@riigel I was told before learning Rust that "if you know Rust, you don't really have a reason to use Go" by a friend who learned and used Go for years before learning Rust, so I'm not entirely convinced
@@HoloTheDrunk well thats really up to, on my case, I also know rust first but there are few jobs open for rust than Go, so I learned Go for my full time job then rust for my personal projects and building up my portfolio for future rust jobs.
4:09 hard truths with humor 🤣🤣
hmm what if i learn both what should i do first ?
You can learn both at the same time. They are pretty similar imo
@@user-hk2ol7en8i sir yes sir
I developing an ClamAV community project on C/C++ instead of Rust.
Wait what Rust being the best choice for general purpose programming with its few areas where it is used?
While it has a smaller community, it is still used in a wide range of areas. I didn't list all of them but only the most common.
Having used Rust in a variety of both professional and hobby contexts over the years (e.g. web servers, an OpenGL-based game engine, games, TUI applications, HPC, etc...), it's really nice for most things in my experience yes.
@@conaticusI don't know, based on the job market, rust has use cases in 2 areas: Crypto and networking (Servers, services, APIs).
I am not sure if you mean by general purpose programming that you tachnically can use it for anything - then yes, but you could say the same thing about Java, but in reality neither of these languages are really used in that wide range of areas.
@@darkmagic543I'm not into programming for the money so I don't care.
Also Rust is in the Linux Kernel and Microsoft is slowly rewriting parts of Windows in Rust. Also new Android features mostly utilize Rust.
@@zekiz774 It's not about the money but what is actually used in the industry. Sure, these companies may use it for some parts of their OS (although I don't know about Microsoft), but that is not really what one can realistically expect to get into and it is rather a minority. I think that was one of its intended use cases - writing operating systems and web browsers before it went sideways, so if you are creating something in that area it may be a decent pick
The impossible match-up
Ive already seen this vid????
Jesus C++hrist
"Control over memory" for me only means "freedom to write more bugs"
real
tbf if you don't need control over memory there's not much reason to use c++ or rust
@@personator I don't need full control over memory. That's why I prefer Rust over C. Rust is memory safe without relying on a garbage collector
I'm new to this, what exactly do you mean by memory safety issues? Can the code damage your RAM or ROM?
A simple app can take gigabytes of RAM, if bad coded.
I suggest you spend a decade working in C and C++. Or even assembly language. Then you will understand what memory safety is all about and which you had not wasted a decade of your life.
@mikedesanta4612, @toparamennoodles9652 What you are describing is "memory leak", which is a memory bug, but less impactful in sense of "safety". Memory leaks can cause OS to shut your program or cause DDOS attacks, using your server's resources; but that's the limit of damage they can do. On the other hand, there are other memory related bugs that have much serious issues. Like accessing a donkey expecting a whale, trying to get 21. donkey out of 20 donkeys, trying to ride a donkey that is already being riden or trying to ride non-existent donkey. These are dangerous because they can corrupt data, or worst, cause remote code execution.
Any resources for me to learn rust? I've been youtubing but the ones i found are a million hours long (i don't have that time unfortunately and i need to make a compiler and i really want to use it and not C) with... a HUGE LOT of info, talk about spending more than 7 minutes explaining what data types are on a PowerPoint presentation instead of teaching how things work on the surface and leave me to search on my own (which i find more productive to me)
The problem with C++ is people who say they know it, dont know it enough to write a code faster than Rust, even though language itself allows it.
C++ is gonna be the next Assembly
c++ is legend!!
i think its lovely of you to acknowledge that c++, a language thats been used excessively for 40 years, is "fully capable" :')
my problem with rust is i feel like im being force fed good food. ik its for my own good, i just don’t like it.
It's a very good summary for all languages. Rust is way more better in my case because it's more easy to setup and deploy, that things in c++ is a nightmare.
0:41 TRAITS ARE NOT UNIQUE TO RUST
Anyway, continue
I want to believe the Rust hype but it is not easy.
6:29 would had been funny if you ended there
after hours of editing it was very tempting 😂
Just learn c# it is something completely different, its not the best at anything specific but it is pretty good for every task all around
That intro 😂😂😂😂
FIRSTTTT, also love the content
Traits are unique to the language - not really. Haskell and Scala have them too, probably others as well
Something I will always hold over every other language is that both the Linux kernel and Tor have adopted Rust
Both are projects that have to be perfect because if they aren't then people die
Until Linux adopts a third language and/or ditches Rust, I'm gonna be a smug bitch about it
can i get the background music please.
Pistachio flew in to spread misinformation
Learning C++ in 2024 is like learning Latin. You need to know it to work on existing projects and get a job. Learning Rust is for starting new generation of applications. Rust is objectively better than C++ in my opinion even though people say they have less freedom because of oppressing borrow checker. My counter argument to that is that it is just a strict mentor who forbids "bad" practices. I have become better programmer in the last 2 years of using Rust than I would have became in 20 years of not using it. It also makes collaboration more practical as you don't need to decipher your colleagues code, because it's "relatively" the same due to the rules. I see only benefits here.
agree with most point but "objectively better in my opinion" is just not it
But but but it’s slower 😢
Equally as entertaining as video before this one...
I feel like Rust is just C++ where you limit yourself to only use unique pointers for anything that is heap / dynamically allocated. Is that far off?
Rust also has references which is what you use most of the time. Smart pointers allow you to essentially create a reference with added functionality, sometimes that added functionality is allocating the data on the heap. You would use smart pointers for the same reasons you’d use them in C++, to abstract away some of the memory handling to make it easier to reason about your code. And there is more to rust, so you’re not far off, just wholly incomplete
Tbh traits are not entirely unique to rust. They are pretty much interfaces from java/c#/go with fancy typing on top
Technically speaking, you can create interfaces in C++ too with virtual abstract member functions.
Nah, not exactly. They are closer to type classes than to interfaces, at least if you consider interfaces as they where originally designed in Java/C#.
even php has traits
Rust Traits are way more powerful. You can impl a trait for a external type, you can impl a trait for a generic, you can add specific constraints for a impl, you can have associated constants, you can have associated types, you can have generics in associated types, you can have constraints in associated types. If I would pick an example, it would be Haskell's classes, though I'm not sure if it has all Traits' features (you can have HKT in Traits, but it's syntax is kind of weird and there is not std Trait for that)
First of all, thanks for improving the video. It's still misleading in many ways though.
> C++ is object oriented
C++ is multiparadigm.
> Rust uses trait system which is unique to the language
It's not unique to the language. E.g. Haskell type classes are similar to traits.
> Rust effective at preventing memory leaks
I don't see how Rust helps against memory leaks how C++ doesn't.
> .clone overuse
C++ is no different
> C++ is also known for great backwards compatibility
Rust is the same with editions.
> Rust has good interop with C
C++ is the same. It's true that Rust can't easily interop with C++, which is a good point.
Zig is better than both of them.
And even while still not even being 1.0
What Zig has that Rust doesn't have? I know Zig has a cool macro system...
@@crimsonmeguminZig has no macros and is focusing more on replacing C.
@@ciso Sorry, I used the wrong term. "Comptime expression evaluation"
Different use cases. Very cool project and I hope it ends up being used everywhere, but I wouldn't use it everywhere I use Rust (or C++ for that matter)
@@crimsonmegumin No problem :)
With modern C++ you also have pretty much safe code but it isn't enforced by the compiler. C++ only lacks an extended standard library which is its biggest drawback compared to other environments (e.g. Java; C#).
traits are not unique to rust; they also exist in Haskell... Haskell works exactly the same way as rust.
normally i’d it’s impossible to “kill” a language, but it really does seem like the Rust community is hellbent on killing C++. I’ve tried learning C++ three times (i’m still a novice) and the first two times i just got an instant headache, even after learning Java.
Damn lol, what gave you the headache?
traits are not unique to rust im upset and angry >:(
your discord invite link seems to be invalid, mind updating it?
Rust is superior, but just a note C++ is not a superset of c for a long time...
rust is very much not superior
What is superior than rust for you?
PHP also has traits
C#
"unless you are looking for a job"... Stop bullying us man ☹️
My personal opinion (as a C# dev who looked at Rust, Go and C++): it seems to be much easier to write cross platform programs with Rust and Go.
C++ has Boost, which helps a lot, but I had to compile it statically before linking to my statically build hello world program. The result was pretty good, but I had a Boost directory containing 10gb of data just to accomplish a simple task in a cross platform manner (create process lol).
In Go and Rust this is much easier and quicker.
Anyways... I'm not very experienced with C++, last time I seriously worked with it is 20 years ago. But the tooling seems a lot harder.
Sure, I could do it without Boost, but then I'd have to write my C++ code for each OS separately with preprocessor if statements.
PS I'm using Go now 😅 It gets out of my way and is fast enough. My main goal was to use something that's more efficient than C# (in size, memory usage and startup time).
Gigachads use C++
Rust is better in evey way, except inheritance and dynamic linking
composition >>> inheritance anyway
If I'm working alone, maybe I'd prefer C++ if I was more experienced with it. But working in a team? Rust hands down. No matter how talented the people you work with are, eventually someone will screw up, and the amount they screw up is only limited by the tools they use.
In C++, your ability to stumble into a catastrophic design flaw is substantially higher than in Rust. The worst case scenario in Rust is a slow piece of code, or something that refuses to compile. I'll take that over an accidental Heartbleed any day of the week.
It's not the 90's anymore, your little video transcoding library that doesn't need to be memory safe is now a pivotal piece of software running every video website on Earth. The consequences of insecure code are so much greater than they ever were. Honestly no different than speed limits. Sure, *you* might think you're able to drive faster than the limit safely, and emergency vehicles get to be an exception, but that doesn't change the fact that speeding kills.
Rust is the future of programming languages for low-level applications. And it could also have a say in other areas such as the Web, for example in conjunction with WebAssembly.
using camel case in c++ must be considered a war crime fr
if you want to be in control of everything because that's why you put in the hours studying to be a good programmer, use C
else
'Promo sm'
2:38 sounds like a skill issue tbh
Jesus joke is next level 😂😂
Rust !!!
C++ is absolute freedom and most can't handle freedom. Rust is ultimate protection, a childproof language for, well, children.
Mention what things you've built with either language
Neither, of course.
jokes aside, you should pay respect to Jesus.
there should be no Jokes about Jesus at all, we're all saved because of his love for us.
@@h3llloworldNo
@@nishantsingh7235 yes
what, do we now threaten others not to make a joke about an imaginary friend ?
wanna blow us up, like that other peaceful religion ?
he loves me so much, so he made me an atheist to watch me burn in hell. about that moron we should make no jokes, serious ?
@@h3llloworldhell no
C#
With unsafe code blocks, spans and native compilation it pareto dominates C++
all rust behavior is undefined
But . . . but . . . Having a formal definition limits the language ability to progress!!
They should make a language called C+Rust that combines the best of both worlds 💯💯💯
??
Nyaa~ (*＾ω＾*) Wust is wike the cutest guawdian angew fow youw code, nya~ OwO With memowy safety, ownewship magic, and a community fuww of wawm hugs, it keeps youw pwogwamming adventuwes aww cozy and uwu-tastic :3
No mowe undefined behaviow scawes, just kawaii coding joy with Cawgo-chan and adowabwe concurwency wuwes~ (*≧ω≦)
Give Wust a twy, and wet it be the nya~st fwiend youw code evew had! \(^ヮ^)/