I use vec![] for initialization from a literal list of elements or a pre-allocated repetition of a single value for its similarity to Rust's array initialization syntax. I use Vec::new() for initializing a Vec without a …

Effectively, what I'm doing is making the accumulator a vec of vecs, and it is always ensured to not be empty in the body of the closure itself. Every item is pushed onto the end of the last vector, and if a 0 …

Mar 4, 2023 · I'm a complete beginner. Here's what I wrote: fn convert(b: Vec<u32>) -> Vec<f64> { b.into_iter().map(|x| x as f64).collect() } I'm trying to figure out how to make this function more …

Aug 29, 2022 · The best expression to add an element to a vector and return the vector is the one in your third code block: { vec.push(element); vec } or if you’re adding multiple elements either extend …

Mar 8, 2023 · VEC in-USB-3 Infinity 3 Digital USB Foot Control (amazon.com) I'm following the steps in the video instructions on that page. When I get to the step where I click 'Foot Pedal Setup', it says …

Sep 12, 2022 · Hey guys is there any fast and efficient way of splitting vec into separate n vectors or arrays without blunt iteration and pushing values into each…

Feb 25, 2022 · If you do want to mutate a Vec, the Vec<String> is probably easier for allocates strings, and Vec<&str> for statics (or lifetime limited to self). First project in rust I went for “String”, then &str, …

Jun 13, 2020 · Is there a "better" way to create a Vec<String> in your source files? let strings : Vec<String> = vec! [ "invisible man", "the spike", "mother night"…

Feb 22, 2022 · For converting arrays to vectors, there's the quite easy "to_vec ()" function. But for the other way around, the only thing I could find was a typecasting function called "try_into",

May 29, 2023 · The deep stack in ptr::write feels suspect. Could it be the case that this is libc memcpy, which is particularly slow for your computer? If you are on Linux, might make sense to try a different …