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path: root/tests/ui/interior-mutability/interior-mutability.rs
blob: c704acc22af6b449b55e7e59a432d8a00764809b (plain)
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use std::cell::Cell;
use std::panic::catch_unwind;
fn main() {
    let mut x = Cell::new(22);
    catch_unwind(|| { x.set(23); });
    //~^ ERROR the type `UnsafeCell<i32>` may contain interior mutability and a
}