From 5e17e3988165d3245e38af0b1c40cde47699f6a7 Mon Sep 17 00:00:00 2001
From: Oliver Scherer <github35764891676564198441@oli-obk.de>
Date: Sun, 8 Dec 2019 01:43:10 +0100
Subject: Require stable/unstable annotations for the constness of all stable
 functions with a `const` modifier

---
 src/libstd/sync/once.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/libstd/sync')

diff --git a/src/libstd/sync/once.rs b/src/libstd/sync/once.rs
index e8e395247f9..d8df09071cd 100644
--- a/src/libstd/sync/once.rs
+++ b/src/libstd/sync/once.rs
@@ -188,6 +188,7 @@ struct WaiterQueue<'a> {
 impl Once {
     /// Creates a new `Once` value.
     #[stable(feature = "once_new", since = "1.2.0")]
+    #[cfg_attr(not(bootstrap), rustc_const_stable(feature = "const_once_new", since = "1.32.0"))]
     pub const fn new() -> Once {
         Once { state_and_queue: AtomicUsize::new(INCOMPLETE), _marker: marker::PhantomData }
     }
-- 
cgit 1.4.1-3-g733a5