File: panic-set-unset-handler.rs

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rustc 1.85.0%2Bdfsg2-3
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//@ run-fail
//@ error-pattern:thread 'main' panicked
//@ error-pattern:foobar
//@ ignore-emscripten no processes

use std::panic;

fn main() {
    panic::set_hook(Box::new(|i| {
        eprint!("greetings from the panic handler");
    }));
    panic::take_hook();
    panic!("foobar");
}