blob: 53e6ee64d470c3f76b474c4a9d4cc641b16c3854 [file] [log] [blame]
//@ run-crash
//@ compile-flags: -Copt-level=3 -Cdebug-assertions=no -Zub-checks=yes
//@ error-pattern: unsafe precondition(s) violated: str::get_unchecked_mut requires
//@ revisions: range range_to range_from backwards_range
fn main() {
unsafe {
let mut s: String = "💅".chars().collect();
let mut s: &mut str = &mut s;
#[cfg(range)]
s.get_unchecked_mut(4..5);
#[cfg(range_to)]
s.get_unchecked_mut(..5);
#[cfg(range_from)]
s.get_unchecked_mut(5..);
#[cfg(backwards_range)]
s.get_unchecked_mut(1..0);
}
}