Function std::panic::take_hook 1.10.0[−][src]
pub fn take_hook() -> Box<dyn Fn(&PanicInfo<'_>) + Sync + Send + 'static>ⓘNotable traits for Box<I, A>impl<I, A> Iterator for Box<I, A> where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;impl<F, A> Future for Box<F, A> where
F: Future + Unpin + ?Sized,
A: Allocator + 'static, type Output = <F as Future>::Output;impl<R: Read + ?Sized> Read for Box<R>impl<W: Write + ?Sized> Write for Box<W>Expand description
Unregisters the current panic hook, returning it.
See also the function set_hook.
If no custom hook is registered, the default hook will be returned.
Panics
Panics if called from a panicking thread.
Examples
The following will print “Normal panic”:
ⓘ
use std::panic;
panic::set_hook(Box::new(|_| {
println!("Custom panic hook");
}));
let _ = panic::take_hook();
panic!("Normal panic");