summaryrefslogtreecommitdiffstats
path: root/src/test/ui/union/issue-41073.rs
blob: 4dfdc606bb4091333fc6cf2a03934516ee8ffad1 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
union Test {
    a: A, //~ ERROR unions cannot contain fields that may need dropping
    b: B
}

#[derive(Debug)]
struct A(i32);
impl Drop for A {
    fn drop(&mut self) { println!("A"); }
}

#[derive(Debug)]
struct B(f32);
impl Drop for B {
    fn drop(&mut self) { println!("B"); }
}

fn main() {
    let mut test = Test { a: A(3) };
    println!("{:?}", unsafe { test.b });
    unsafe { test.b = B(0.5); }
}