rust/tests/ui/borrowck/borrowck-vec-pattern-tail-element-loan.rs
2023-01-11 09:32:08 +00:00

15 lines
329 B
Rust

fn a<'a>() -> &'a isize {
let vec = vec![1, 2, 3, 4];
let vec: &[isize] = &vec;
let tail = match vec {
&[_a, ref tail @ ..] => &tail[0],
_ => panic!("foo")
};
tail //~ ERROR cannot return value referencing local variable `vec`
}
fn main() {
let fifth = a();
println!("{}", *fifth);
}