//@ run-pass //@ needs-unwind //@ ignore-emscripten no threads support use std::sync::atomic::{AtomicUsize, Ordering}; use std::panic; use std::thread; static A: AtomicUsize = AtomicUsize::new(0); fn main() { panic::set_hook(Box::new(|_| { A.fetch_add(1, Ordering::SeqCst); })); let result = thread::spawn(|| { let result = panic::catch_unwind(|| { panic!("hi there"); }); panic::resume_unwind(result.unwrap_err()); }).join(); let msg = *result.unwrap_err().downcast::<&'static str>().unwrap(); assert_eq!("hi there", msg); assert_eq!(1, A.load(Ordering::SeqCst)); }