alt Hacker NewsHuh. I expected two main advantages on Rust's side: usable multithreading (as mentioned) and stack allocation. For the latter, the ownership model makes it possible to stack-allocate things that you wouldn't dare put on the stack in either C or C++, thus saving malloc and free time as well as second-order effects from avoiding fragmentation.
Does Rust not do this for subtle reasons that I'm missing, or does it just not matter as much as I'd expect it to?
Both of those things are important, sure. I wanted this post to be talking about the higher level conceptual question, and then using interesting examples to tease out various aspects of that discussion, more than "here's what I think are the biggest differences between the two."
I think these two things are also things people would argue about a lot. It's hard to talk about them in a concrete sense of things, rather than just "I feel like code usually does X".