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-rw-r--r--library/std/src/sys_common/once/generic.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/library/std/src/sys_common/once/generic.rs b/library/std/src/sys_common/once/generic.rs
index acf5f2471..d953a6745 100644
--- a/library/std/src/sys_common/once/generic.rs
+++ b/library/std/src/sys_common/once/generic.rs
@@ -107,6 +107,7 @@ struct WaiterQueue<'a> {
impl Once {
#[inline]
+ #[rustc_const_stable(feature = "const_once_new", since = "1.32.0")]
pub const fn new() -> Once {
Once { state_and_queue: AtomicPtr::new(ptr::invalid_mut(INCOMPLETE)) }
}