[charcircuit]

>100% Rust - No unsafe code blocks

It uses an unsafe code block.

https://github.com/jedisct1/yes-rs/blob/main/src/main.rs#L12...

It also appears to log other stuff than y.

The uutils rewrite of yes into rust doesn't use unsafe and is much simpler.

https://github.com/uutils/coreutils/blob/main/src/uu/yes/src...

[godelski]

  > It uses an unsafe code block.

it's okay, it's Rust unsafe

[charcircuit]

No, it's not. It's false advertising and lifting an unsafe that high in the call stack is dangerous and a sign of poor code quality.

The point of advertising no unsafe in the readme is so that people do not have to worry if the author handled unsafe correctly.

[uecker]

No, no. Rust's unsafe is fine. After all unsafe is not a problem because it is directly obvious just by looking at the source of your 200 dependencies. If you still have doubts you can make sure everything it is ok simply by writing "SAFETY" next to it to point out that it is safe (btw: not having this is a serious omission in the yes-rs project). And anyway, the compiler still does basically almost all checks! This rest is entirely obvious in Rust. For example, there can never be a subtle exception-related issue that make this difficult to analyze because in Rust it is called panic. And if there is still should be a mistake, then this does not count because it was not the fault of Rust but yours. (This is totally different to C where even the most-expert programmer can never know when he is going to free memory or doing pointer arithmetic. This could literally occur completely surprisingly in every line of code!)

[hatefulmoron]

Rust uses AI to ensure that C/C++ programmer mistakes do not happen in unsafe blocks. "unsafe" is a misnomer.

[hatefulmoron]

Without it, we can't use the quantum enhanced string, which is safe because it's written in Rust.

[charcircuit]

It's written using unsafe Rust which means that the compiler will not be able to verify that it is safe. It's not guaranteed to be safe just because it is written in Rust. Please understand this, the author of this repo is spreading incorrect information.

[vlovich123]

The difference between a zealot and an evangelist is the ability to understand when someone is making a joke. I’ll let you figure out how you’re coming across here on your own as a growth exercise.

[johnisgood]

I cannot tell if parent is making a joke, or is dead serious. They won.

[hatefulmoron]

You seem to be saying that Rust code can be unsafe, perhaps you're thinking of the profoundly unsafe and deprecated C or C++ languages?

[charcircuit]

I recommend reading through this section of the The Rust Programming Language book to learn more about the existence of Unsafe Rust which is a part of Rust and not a different language like C or C++.

https://doc.rust-lang.org/book/ch20-01-unsafe-rust.html

[godelski]

But what about the quantum compiler?

[godelski]

  https://github.com/jedisct1/yes-rs/blob/main/src/main.rs#L1233

[Khaine]

I think you missed the joke

[TheDong]

> The uutils rewrite of yes into rust doesn't use unsafe

Yes it does, it uses 'stdout.write_all', which ultimately uses unsafe to call libc.write

https://github.com/rust-lang/rust/blob/d76fe154029e03aeb64af...

The "unsafe" in uutils is just better hidden.

I personally like my lack-of-safety where I can see it, which is why I find it much more relaxing to drive a car when the engine is already on fire, rather than one where I can't see any visible flames.

[boxed]

It's a joke.