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
33
34
|
// run-pass
// needs-unwind
// ignore-windows target requires uwtable
// compile-flags: -C panic=unwind -C force-unwind-tables=n
use std::panic::{self, AssertUnwindSafe};
struct Increase<'a>(&'a mut u8);
impl Drop for Increase<'_> {
fn drop(&mut self) {
*self.0 += 1;
}
}
#[inline(never)]
fn unwind() {
panic!();
}
#[inline(never)]
fn increase(count: &mut u8) {
let _increase = Increase(count);
unwind();
}
fn main() {
let mut count = 0;
assert!(panic::catch_unwind(AssertUnwindSafe(
#[inline(never)]
|| increase(&mut count)
)).is_err());
assert_eq!(count, 1);
}
|
