Rust Ownership: Understanding Memory Safety
Ownership is Rust’s unique feature that ensures memory safety without garbage collection. Ownership Rules Each value has a single owner Only one owner at a time When owner goes out of scope, value is dropped let s = String::from("hello"); // s owns the string Moving let s1 = String::from("hello"); let s2 = s1; // s1 is moved to s2 // s1 is no longer valid Borrowing fn calculate_length(s: &String) -> usize { s.len() } let s = String::from("hello"); let len = calculate_length(&s); // Borrowing Mutable References fn change(s: &mut String) { s.push_str(", world"); } let mut s = String::from("hello"); change(&mut s); Best Practices Use references when possible Understand ownership rules Avoid unnecessary moves Use clone() sparingly Leverage the borrow checker Conclusion Master Rust ownership for memory-safe systems programming! 🦀