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I wish `#[non_exhaustive]` worked with struct update syntax

2024-04-10T00:00:00-07:00

It’s pretty annoying that in Rust, #[non_exhaustive] structs don’t support “struct update” / “functional record update” syntax (the syntax that powers Stuff { a: b, c: d, ..blah }).

Why is there no realloc that takes the number of bytes to copy?

2024-04-09T00:00:00-07:00

I’d like a variant of realloc that takes the number of bytes that should be copied, in the case a copy is needed.

Allocator trait 1: Let’s talk about the Allocator trait

2023-08-06T17:08:12-07:00

There are… several things I find wanting about the current version of the core::alloc::Allocator trait (as of 2023-08-06). I’m going to do a short series where I post about some of the bigger issues, and explore the different tradeoffs and design choices we might make. This post is an introduction to that.

Miri Feature Wishlist

2021-11-07T00:00:00-07:00

Miri is an evaluator for rust that detects many kinds of undefined behavior. Here are some things it could (possibly) do that would catch bugs I’ve had/seen before.

Codelet: A better `saturate`/`clamp01` function

2021-04-02T00:00:00-07:00

Let’s talk about clamping a float between 0.0 and 1.0.

Introducing “Codelets”

2021-04-01T00:00:00-07:00

In an effort to post more, I’m going to start posting shorter (and frankly, lower effort) blog posts known as “Codelets”.

Futex-likes

2021-01-04T00:00:00-08:00

Most major OSes offer some form of futex-like functionality at this point. Some of these are a bit obscure and hard to remember, though, so I thought I’d write some stuff about them down so that I can refer to it or link it later.

A Few Github Action “Recipes” for Rust

2020-09-06T00:00:00-07:00

Here’s some blocks of yaml you can copy-paste to make github actions work for your Rust project. Go nuts.

“Tear”able Puns, and Worse Ideas: A Minimally Thread-Safe Cell

2020-06-11T00:00:00-07:00

If you’ve ever thought “Using a Mutex<[f32; 3]> is pointless, what’s the worst thing that could happen here?”, I’ve written the Cell type that empowers you to find out the answer to that question yourself.

Layouts and `dealloc`: An unfortunate aspect of Rust’s allocation API

2020-06-10T00:00:00-07:00

Note: This assumes you have familiarity with Rust, memory allocation, etc.