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// Checks that catch_unwind can be used if unwinding is already in progress.
// Used to fail when standard library had been compiled with debug assertions,
// due to incorrect assumption that a current thread is not panicking when
// entering the catch_unwind.
//
//@ run-pass
//@ ignore-backends: gcc
use std::panic::catch_unwind;
#[allow(dead_code)]
#[derive(Default)]
struct Guard;
impl Drop for Guard {
fn drop(&mut self) {
let _ = catch_unwind(|| {});
}
}
fn main() {
#[cfg(panic = "unwind")]
let _ = catch_unwind(|| {
let _guard = Guard::default();
panic!();
});
}
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