rust/tests/ui/nll/promoted-bounds.rs
2023-01-11 09:32:08 +00:00

26 lines
435 B
Rust

fn shorten_lifetime<'a, 'b, 'min>(a: &'a i32, b: &'b i32) -> &'min i32
where
'a: 'min,
'b: 'min,
{
if *a < *b {
&a
} else {
&b
}
}
fn main() {
let promoted_fn_item_ref = &shorten_lifetime;
let a = &5;
let ptr = {
let l = 3;
let b = &l; //~ ERROR does not live long enough
let c = promoted_fn_item_ref(a, b);
c
};
println!("ptr = {:?}", ptr);
}