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// run-pass
use std::cell::Cell;
#[derive(Debug)]
struct B<'a> {
a: [Cell<Option<&'a B<'a>>>; 2]
}
impl<'a> B<'a> {
fn new() -> B<'a> {
B { a: [Cell::new(None), Cell::new(None)] }
}
}
fn f() {
let (b1, b2, b3);
b1 = B::new();
b2 = B::new();
b3 = B::new();
b1.a[0].set(Some(&b2));
b1.a[1].set(Some(&b3));
b2.a[0].set(Some(&b2));
b2.a[1].set(Some(&b3));
b3.a[0].set(Some(&b1));
b3.a[1].set(Some(&b2));
}
fn main() {
f();
}
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