rust/tests/ui/borrowck/borrowck-borrowed-uniq-rvalue.rs
2024-02-16 20:02:50 +00:00

14 lines
337 B
Rust

//@ run-rustfix
use std::collections::HashMap;
fn main() {
let tmp: Box<_>;
let mut buggy_map: HashMap<usize, &usize> = HashMap::new();
buggy_map.insert(42, &*Box::new(1)); //~ ERROR temporary value dropped while borrowed
// but it is ok if we use a temporary
tmp = Box::new(2);
buggy_map.insert(43, &*tmp);
}