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Master Rust ownership, borrowing, lifetimes, and memory safety. Understand move semantics, references, and zero-cost abstractions.
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Baseado na classificação ocupacional SOC
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| name | rust-ownership |
| description | Master Rust ownership, borrowing, lifetimes, and memory safety. Understand move semantics, references, and zero-cost abstractions. |
Master Rust's ownership system for writing safe, efficient, and concurrent code without garbage collection.
fn main() {
let s1 = String::from("hello");
let s2 = s1; // s1 moved to s2, s1 no longer valid
println!("{}", s2); // OK
// println!("{}", s1); // Error: value borrowed after move
}
fn main() {
let s1 = String::from("hello");
let len = calculate_length(&s1); // Borrow s1
println!("Length of '{}' is {}", s1, len); // s1 still valid
}
fn calculate_length(s: &String) -> usize {
s.len()
} // s goes out of scope but nothing happens (doesn't own the data)
fn main() {
let mut s = String::from("hello");
change(&mut s);
println!("{}", s); // "hello, world"
}
fn change(s: &mut String) {
s.push_str(", world");
}
fn longest<'a>(x: &'a str, y: &'a str) -> &'a str {
if x.len() > y.len() {
x
} else {
y
}
}