submitted 3 months ago* (last edited 3 months ago) by commander@lemmings.world to c/rust@lemmy.ml

13 comments fedilink hide all child comments

let mut variable: Type;
loop {
    variable = value;
}

loop {
    let variable: Type = value;
}

you are viewing a single comment's thread
view the rest of the comments

[-] Giooschi@lemmy.world 3 points 3 months ago* (last edited 3 months ago)

let statements only reserves space on the stack

It is not guaranteed to do that. It could also use a register or be optimized out completly (like in the example you posted in the other comment).

The stack pointer is also not changed for each local variable, but instead for each function call, so it wouldn't make a difference anyway.

[-] anhkagi@jlai.lu 1 points 3 months ago

Ok! Thanks for the clarification !

this post was submitted on 08 Mar 2025

11 points (92.3% liked)

Rust Programming

8822 readers

51 users here now

founded 6 years ago

MODERATORS