rust/tests/ui/box/unit/unique-in-vec-copy.rs
2024-02-16 20:02:50 +00:00

16 lines
284 B
Rust

//@ run-pass
pub fn main() {
let mut a: Vec<Box<_>> = vec![Box::new(10)];
let b = a.clone();
assert_eq!(*a[0], 10);
assert_eq!(*b[0], 10);
// This should only modify the value in a, not b
*a[0] = 20;
assert_eq!(*a[0], 20);
assert_eq!(*b[0], 10);
}