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//@ run-pass
#![allow(dead_code)]
// Making sure that no overflow occurs.
struct L<T> {
n: Option<T>,
}
type L8<T> = L<L<L<L<L<L<L<L<T>>>>>>>>;
type L64<T> = L8<L8<L8<L8<T>>>>;
fn main() {
use std::mem::size_of;
assert_eq!(size_of::<L64<L64<()>>>(), 1);
assert_eq!(size_of::<L<L64<L64<()>>>>(), 1);
}
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