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In December 2022, it became the first language other than C and assembly to be supported in the development of the Linux kernel. Rust has been noted for its rapid adoption, and has been studied in programming language theory research.
Feb 14, 2023 · How Rust went from a side project to the world’s most-loved programming language. For decades, coders wrote critical systems in C and C++. Now they turn to Rust. By. Clive Thompson....
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- Bitwise Operation Over Register Values in C
- Bitwise Operation Over Register Values in Rust
- A Rust Implementation For Ease of Use
- Using Rust with Safety in Mind
- Just Right with Rust: Both Safe and Accessible
- Kicking The Tires
- Decoding Failure Conditions
- In Conclusion
In the world of systems programming, where you may find yourself writing hardware drivers or interacting directly with memory-mapped devices, interaction is almost always done through memory-mapped registers provided by the hardware. You typically interact with these things through bitwise operations on some fixed-width numeric type. For instance, ...
Continuing with the register above as an example: How might you want to express such a thing in Rust types? You'll start in a similar way, by defining constants for each field's offset—that is, how far it is from the least significant bit—and its mask. A maskis a value whose binary representation can be used to update or read the field from inside ...
The first rewrite in Rust is nice, but it's not ideal. You have to remember to bring the mask and offset, and you're calculating them ad hoc, by hand, which is error-prone. Humans aren't great at precise and repetitive tasks—we tend to get tired or lose focus, and this leads to mistakes. Transcribing the masks and offsets by hand, one register at a...
How can you check that a field's value fits in its prescribed position in a general way? More type-level numbers! You can add a Width parameter to Fieldand use it to verify that a given value can fit into the field: Now you can construct a Field only if the given value fits! Otherwise, you have None, which signals that an error has occurred, rather...
Earlier, I called out calculating masks by hand as being problematic, but I just did that same problematic thing—albeit at the type level. While using such an approach is nice, getting to the point when you can write any code requires quite a bit of boilerplate and manual transcription (I'm talking about the type synonyms here). Our team wanted som...
What does it look like to use these definitions for a real device? Will the code be littered with type parameters, obscuring any real logic from view? No! By using type synonyms and type inference, you effectively never have to think about the type-level part of the program at all. You get to interact with the hardware in a straightforward way and ...
Depending on your personal pain threshold, you may have noticed that the errors are nearly unintelligible. Take a look at a not-so-subtle reminder of what I'm talking about: The expected typenum::B0 found typenum::B1 part kind of makes sense, but what on earth is the typenum::UInt
Memory-mapped registers are used ubiquitously when interacting with hardware from software, and there are myriad ways to portray those interactions, each of which has a different place on the spectra of ease-of-use and safety. We found that the use of type-level programming to get compile-time checking on memory-mapped register interactions gave us...
May 2, 2024 · Rust and C/C++ have different syntax and paradigms. Rust is a systems programming language that has been designed to provide memory safety guarantees and other benefits without sacrificing...
Rust has great documentation, a friendly compiler with useful error messages, and top-notch tooling — an integrated package manager and build tool, smart multi-editor support with auto-completion and type inspections, an auto-formatter, and more. Build it in Rust.
Jan 20, 2020 · To many people, Rust is largely viewed as an alternative to other systems programming languages, like C or C++. The biggest benefit Rust can provide compared to these languages is the borrow checker. This is the part of the compiler responsible for ensuring that references do not outlive the data they refer to, and it helps eliminate entire ...
Sep 12, 2021 · # rust # c. In the past years we have witnessed probably the fastest adoption of a new language, Rust. This article explores the question "Are we moving too fast?".
