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// build-pass (FIXME(62277): could be check-pass?)
use std::cell::UnsafeCell;
use std::sync::atomic::AtomicU32;
pub struct Condvar {
condvar: UnsafeCell<AtomicU32>,
unsafe impl Send for Condvar {}
unsafe impl Sync for Condvar {}
#[derive(Copy, Clone, Eq, PartialEq, Hash, Debug)]
struct NoWait(u32);
const CONDVAR_HAS_NO_WAITERS: NoWait = NoWait(42);
impl Condvar {
pub const fn new() -> Condvar {
Condvar {
condvar: UnsafeCell::new(AtomicU32::new(CONDVAR_HAS_NO_WAITERS.0)),
fn main() {}
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