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Diffstat (limited to 'src/libstd/sync')
| -rw-r--r-- | src/libstd/sync/once.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libstd/sync/once.rs b/src/libstd/sync/once.rs index 403685a4b8e..015106fc2e5 100644 --- a/src/libstd/sync/once.rs +++ b/src/libstd/sync/once.rs @@ -156,6 +156,7 @@ struct Finish { impl Once { /// Creates a new `Once` value. #[stable(feature = "once_new", since = "1.2.0")] + #[cfg_attr(not(stage0), rustc_const_unstable(feature = "const_once_new"))] pub const fn new() -> Once { Once { state: AtomicUsize::new(INCOMPLETE), |