tests/ui/panics/panic-handler-set-twice.rs

   1 // run-pass
   2 // needs-unwind
   3 #![allow(unused_variables)]
   4 #![allow(stable_features)]
   5
   6 #![feature(std_panic)]
   7
   8 // ignore-emscripten no threads support
   9
  10 use std::sync::atomic::{AtomicUsize, Ordering};
  11 use std::panic;
  12 use std::thread;
  13
  14 static A: AtomicUsize = AtomicUsize::new(0);
  15
  16 fn main() {
  17     panic::set_hook(Box::new(|_| ()));
  18     panic::set_hook(Box::new(|info| { A.fetch_add(1, Ordering::SeqCst); }));
  19
  20     let _ = thread::spawn(|| {
  21         panic!();
  22     }).join();
  23
  24     assert_eq!(1, A.load(Ordering::SeqCst));
  25 }