1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
|
// run-pass
#![allow(unused_variables)]
#![allow(stable_features)]
// test that ordinary fat pointer operations work.
#![feature(braced_empty_structs)]
#![feature(rustc_attrs)]
use std::sync::atomic;
use std::sync::atomic::Ordering::SeqCst;
static COUNTER: atomic::AtomicUsize = atomic::AtomicUsize::new(0);
struct DropMe {
}
impl Drop for DropMe {
fn drop(&mut self) {
COUNTER.fetch_add(1, SeqCst);
}
}
fn fat_ptr_move_then_drop(a: Box<[DropMe]>) {
let b = a;
}
fn main() {
let a: Box<[DropMe]> = Box::new([DropMe { }]);
fat_ptr_move_then_drop(a);
assert_eq!(COUNTER.load(SeqCst), 1);
}
|
