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#![no_std]
use ringbuf::StaticRb;
fn main() {
const RB_SIZE: usize = 1;
let mut rb = StaticRb::<i32, RB_SIZE>::default();
let (mut prod, mut cons) = rb.split_ref();
assert_eq!(prod.push(123), Ok(()));
assert_eq!(prod.push(321), Err(321));
assert_eq!(cons.pop(), Some(123));
assert_eq!(cons.pop(), None);
}