reference
too-many-lists
reference | too-many-lists | |
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22 | 219 | |
1,140 | 3,027 | |
1.8% | 1.0% | |
8.8 | 0.0 | |
8 days ago | 20 days ago | |
Rust | Rust | |
Apache License 2.0 | MIT License |
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reference
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Why is there no standard way of removing the mutability property from a reference?
Is perfectly valid Rust code. And there's reborrow, too.
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Let's thank who have helped us in the Rust Community together!
I truly appreciate how much effort u/ehuss puts into maintaining The Rust Reference, considering that documenting stuff is not usually a fun task people want to do. Not to mention that ehuss is also the Cargo team lead, responsible for developing one of the most loved tools in Rust. ehuss's insightful knowledge always ensures that Cargo works without unexpected surprises.
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noob question about moving references
Here is (somewhat long) discussion on the topic with other examples: https://github.com/rust-lang/reference/issues/788
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Announcing Rust 1.66.0
The PR for updating the documentation is here, still under discussion: https://github.com/rust-lang/reference/pull/1055
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Can someone please explain this to me? How does the compiler know about this for more advanced cases and when does it do this?
thank you this is definitely interesting and i need to read more. For anyone else, this is the thing I found about this issue when I looked it up. It's a github issue about how little documentation there is on the subject and that there should be more. Even the initial post has a lot of interesting details and links. Thanks for bringing it up although sorry it seems your comment went a bit over the heads of some redditors.
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Anything C can do Rust can do Better
⭐ The Rust Reference - repo
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GAT section in new version of Rust book?
For the rust reference, there is an open pull request https://github.com/rust-lang/reference/pull/1265/
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Hey Rustaceans! Got a question? Ask here! (33/2022)!
&mut * is reborrowing which is allowed
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Why is rust so difficult to learn?
Officialhttps://www.youtube.com/watch?v=rAl-9HwD858&list=PLqbS7AVVErFiWDOAVrPt7aYmnuuOLYvOa The official rust book Rust by example The rust docs Rustlings the most fun way imo
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PSA - Most Rust tooling runs only on the default feature set and current platform if no special steps are taken
I've opened a PR to add this more prominently to the Conditional Compilation entry in the Rust reference.
too-many-lists
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Towards memory safety with ownership checks for C
You seem to have a preset opinion, and I'm not sure you are interested in re-evaluating it. So this is not written to change your mind.
I've developed production code in C, C++, Rust, and several other languages. And while like pretty much everything, there are situations where it's not a good fit, I find that the solutions tend to be the most robust and require the least post release debugging in Rust. That's my personal experience. It's not hard data. And yes occasionally it's annoying to please the compiler, and if there were no trait constraints or borrow rules, those instances would be easier. But way more often in my experience the compiler complained because my initial solution had problems I didn't realize before. So for me, these situations have been about going from building it the way I wanted to -> compiler tells me I didn't consider an edge case -> changing the implementation and or design to account for that edge case. Also using one example, where is Rust is notoriously hard and or un-ergonomic to use, and dismissing the entire language seems premature to me. For those that insist on learning Rust by implementing a linked list there is https://rust-unofficial.github.io/too-many-lists/.
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Command Line Rust is a great book
Advent of Code was okay until I encounterd a problem that required a graph, tree or linked list to solve, where I hit a wall. Most coding exercises are similar--those requiring arrays and hashmaps and sets are okay, but complex data structures are a PITA. (There is an online course dedicated to linked lists in Rust but I couldn't grok it either). IMO you should simply skip problems that you can't solve with your current knowledge level and move on.
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[Media] I'm comparing writing a double-linked list in C++ vs with Rust. The Rust implementation looks substantially more complex. Is this a bad example? (URL in the caption)
I feel obligated to point to the original cannon literature: https://rust-unofficial.github.io/too-many-lists/
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Need review on my `remove()` implementation for singly linked lists
I started learning Rust and like how the compiler is fussy about things. My plan was to implement the data structures I knew, but I got stuck at the singly linked list's remove() method. I've read the book as well, but I have no clue how to simplify this further:
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Factor is faster than Zig
My impression from the article is that Zig provides several different hashtables and not all of them are broken in this way.
This reminds me of Aria's comment in her Rust tutorial https://rust-unofficial.github.io/too-many-lists/ about failing to kill LinkedList. One philosophy (and the one Rust chose) for a stdlib is that this is only where things should live when they're so commonly needed that essentially everybody needs them either directly or to talk about. So, HashTable is needed by so much otherwise unrelated software that qualifies, BloomFilter, while it's real useful for some people, not so much. Aria cleaned out Rust's set of standard library containers before Rust 1.0, trying to keep only those most people would need. LinkedList isn't a good general purpose data structure, but, it was too popular and Aria was not able to remove it.
Having multiple hash tables feels like a win (they're optimized for different purposes) but may cost too much in terms of the necessary testing to ensure they all hit the quality you want.
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Was Rust Worth It?
> Cyclic references can be dealt with runtime safety checks too - like Rc and Weak.
Indeed. Starting out with code sprinkled with Rc, Weak, RefCell, etc is perfectly fine and performance will probably not be worse than in any other safe languages. And if you do this, Rust is pretty close to those languages in ease of use for what are otherwise complex topics in Rust.
A good reference for different approaches is Learn Rust With Entirely Too Many Linked Lists https://rust-unofficial.github.io/too-many-lists/
- What are some of projects to start with for a beginner in rust but experienced in programming (ex: C++, Go, python) ?
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How to start learning a systems language
Second, once you've finished something introductory like The Book, read Learning Rust With Entirely Too Many Linked Lists. It really helped me to understand what ownership and borrowing actually mean in practical terms. If you don't mind paying for learning materials, a lot of people recommend Programming Rust, Second Edition by Blandy, Orendorff, and Tindall as either a complement, follow-up, or alternative to The Book.
- My team might work with Rust! But I need good article recommendations
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Conversion?
Learning Rust With Entirely Too Many Linked Lists which highlights a lot of the differences with how you need to structure your code in Rust compared to other languages.
What are some alternatives?
rust-by-example - Learn Rust with examples (Live code editor included)
rust - Empowering everyone to build reliable and efficient software.
mrustc - Alternative rust compiler (re-implementation)
Rustlings - :crab: Small exercises to get you used to reading and writing Rust code!
tour_of_rust - A tour of rust's language features
book - The Rust Programming Language
stdarch - Rust's standard library vendor-specific APIs and run-time feature detection
CppCoreGuidelines - The C++ Core Guidelines are a set of tried-and-true guidelines, rules, and best practices about coding in C++
utils - Utility crates used in RustCrypto
easy_rust - Rust explained using easy English
rust - Rust for the xtensa architecture. Built in targets for the ESP32 and ESP8266
x11rb - X11 bindings for the rust programming language, similar to xcb being the X11 C bindings