Rust allows only one owner per value, but shared access is possible via references or smart pointers like Arc<T>.
No, a value in Rust can have only one owner at a time, but multiple threads or scopes can share access to it via references or smart pointers like Rc<T> or Arc<T>. To share ownership across threads, use Arc<T> (Atomic Reference Counted) which allows safe concurrent access:
use std::sync::Arc;
fn main() {
let data = Arc::new(vec![1, 2, 3]);
let clone = Arc::clone(&data);
// Both `data` and `clone` share ownership
}
Rust enforces a single owner for every piece of data to prevent memory errors, but you can share that data safely using special pointers. Think of it like a house deed: only one person legally owns the house, but multiple people can have keys to enter it. Use Arc<T> when you need multiple parts of your program to safely access the same data at the same time.