// 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); }