diff options
Diffstat (limited to 'library/std/src/lazy.rs')
| -rw-r--r-- | library/std/src/lazy.rs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/library/std/src/lazy.rs b/library/std/src/lazy.rs index aec2a2aa639..974851a8bd6 100644 --- a/library/std/src/lazy.rs +++ b/library/std/src/lazy.rs @@ -177,7 +177,10 @@ impl<T> SyncOnceCell<T> { /// Sets the contents of this cell to `value`. /// - /// Returns `Ok(())` if the cell's value was updated. + /// May block if another thread is currently attempting to initialize the cell. The cell is + /// guaranteed to contain a value when set returns, though not necessarily the one provided. + /// + /// Returns `Ok(())` if the cell's value was set by this call. /// /// # Examples /// |