You don’t need unsafe. Just keep pushing to a vec and never remove anything. Memory leaks are more than lost memory allocations. You can even have them with rc/arc cycles
Yeah. Lot of people also use Ai generated code… so…
I have tested if clippy would warn me with a simple example (generates 6.7gb memory usage, be careful not to crash your computer if you add another 0…), while I watch with a system monitor (in KDE):
use std::thread;
use std::time;
fnmain() {
letmut vec = Vec::new(); // Create an empty Vector.fornumberin0..900000000 {
letbign: i64 = number * number;
vec.push(bign);
}
thread::sleep(time::Duration::from_secs(10));
}
I used the pedantic option of clippy and the only thing it complained was about the notation of the number…:
$ cargo clippy -- -W clippy::pedantic
warning: long literal lacking separators
--> src/main.rs:7:22
|
7 | for number in 0..900000000 {
| ^^^^^^^^^ help: consider: `900_000_000`
|
= help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal
= note: `-W clippy::unreadable-literal` implied by `-W clippy::pedantic`
= help: to override `-W clippy::pedantic` add `#[allow(clippy::unreadable_literal)]`
warning: `notright` (bin "notright") generated 1 warning
Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.00s
Especially if you have to use unsafe libraries from C, or use any unsafe block at all to do low level programming or for performance.
You don’t need unsafe. Just keep pushing to a vec and never remove anything. Memory leaks are more than lost memory allocations. You can even have them with rc/arc cycles
Yeah. Lot of people also use Ai generated code… so…
I have tested if clippy would warn me with a simple example (generates 6.7gb memory usage, be careful not to crash your computer if you add another 0…), while I watch with a system monitor (in KDE):
use std::thread; use std::time; fn main() { let mut vec = Vec::new(); // Create an empty Vector. for number in 0..900000000 { let bign: i64 = number * number; vec.push(bign); } thread::sleep(time::Duration::from_secs(10)); }I used the pedantic option of clippy and the only thing it complained was about the notation of the number…:
$ cargo clippy -- -W clippy::pedantic warning: long literal lacking separators --> src/main.rs:7:22 | 7 | for number in 0..900000000 { | ^^^^^^^^^ help: consider: `900_000_000` | = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unreadable_literal = note: `-W clippy::unreadable-literal` implied by `-W clippy::pedantic` = help: to override `-W clippy::pedantic` add `#[allow(clippy::unreadable_literal)]` warning: `notright` (bin "notright") generated 1 warning Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.00sSurely that’s not a memory leak, that’s just the program using a lot of memory intentionally