Viewing profile — aratakareigen

For example, if I could push to a Vec while holding a slice to it, that would obviously lead to horrible behavior if the Vec needed to reallocate. Another example is if someone tri…

Right, but the question was: > doesn’t Rust refuse to compile even when you use non-concurrency safe objects in a single thread? and given that most types (Vec, HashMap, etc.) aren…

Rust types have markers (Send, Sync) that tell the compiler whether they can be moved across threads, and whether they can be simultaneously accessed across threads. These markers …

Yep, you can't implement UnsafeCell yourself without running into undefined behavior.

Right. The main advantage of Rust is that its thread safety is opt-out (unsafe) rather than opt-in (remember to use the right data structures / locks).

It is a convention, not a rule, in mathematics to use (+) to represent operations that are commutative (i.e. abelian) groups. But this convention is not at all respected in program…

Literally no "non-tech-savvy" person I know backs up anything at all. I seriously doubt that backup / transfer is on anyone's mind at all when deciding to use a new messenger.

Really? I mean, either a few drug dealers slip through the cracks, you fill the nice fun stadium with creepy surveillance cameras to cover your own ass, or the stadium simply doesn…

Why? I can't think of an alternative that users wouldn't complain about.

Great, but this reads like a particularly blunt Amazon ad. Is there a way to achieve "high scalability" without selling my soul to Amazon?

For many lying is already a deeply ingrained habit, and for them honesty will take practice.

> Reading a few top research papers in a field you're interested in and work through them Why reading a research paper rather than the more standard approach of reading a textbook?…

I just started reading, but why does it say "(semi)group" instead of "semigroup / monoid"? I've never heard of inversion being used to perform a fold.

Hi HN, I'm a third-year Computer Science student and all my friends already have multiple internships and jobs under their belt. I want to intern but the fear of rejection is overw…

How does TypeScript ensure encapsulation if it doesn't have nominal types? Edit: The article says "magical hidden properties".

SO(3) is definitely three-dimensional, and rotations don't involve magnitudes.

The space of rotors and rotation quaternions are both three dimensional because the coordinates are restricted to unit magnitude. Quaternions and rotors are exactly the same in pra…

He means an ecosystem where 99% of the work needed to build yet another CRUD app is done for you.

Yep, Stack has an atrocious UX that does nothing but cause progressively increasing amounts of pain. I wish someone would just write the Cargo or NPM of Haskell already.

> Rust and go eventually will be facing same issues Isn't Rust's workaround their "edition" system? It seems to be working pretty well for them, but it sounds like it could end up …

The age, gender, etc. distributions of the people who visit your website. I don't know anything about GA, but I'm guessing they'd know this from the currently signed in Google acco…

Return position impl Trait also exists so that you can change the actual return type without making a breaking change.

That line is extremely simple to me. What makes it seem like a "mix-match" of symbols to you? The equivalent in Haskell would be "compose :: (a -> a) -> (a -> a) -> a -> a", which …

See also: https://en.m.wikipedia.org/wiki/Adaptive_sort Another example application of adaptive sorts is the sweep-and-prune broadphase collision detection algorithm that's somewha…