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