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
|
//@ run-pass
#![allow(unreachable_code)]
use std::sync::atomic::{AtomicBool, Ordering, AtomicUsize};
struct Print(usize);
impl Drop for Print {
fn drop(&mut self) {
println!("{}", self.0);
FOO[self.0].store(true, Ordering::Relaxed);
assert_eq!(BAR.fetch_sub(1, Ordering::Relaxed), self.0);
}
}
const A: Print = Print(0);
const B: Print = Print(1);
static FOO: [AtomicBool; 3] =
[AtomicBool::new(false), AtomicBool::new(false), AtomicBool::new(false)];
static BAR: AtomicUsize = AtomicUsize::new(2);
fn main() {
loop {
std::mem::forget(({ A }, B, Print(2), break));
}
for (i, b) in FOO.iter().enumerate() {
assert!(b.load(Ordering::Relaxed), "{} not set", i);
}
assert_eq!(BAR.fetch_add(1, Ordering::Relaxed), usize::max_value());
}
|
