From 022a7de26f5cb386ec853eec3b7f44dcd516a6d1 Mon Sep 17 00:00:00 2001
From: Phoebe Bell <minaphoebebell@gmail.com>
Date: Thu, 16 Jan 2020 19:26:02 -0800
Subject: [PATCH] Add SAFETY comment for atomic example

---
 src/libcore/sync/atomic.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/libcore/sync/atomic.rs b/src/libcore/sync/atomic.rs
index 8d55dc55ef2d6..9d449bb991507 100644
--- a/src/libcore/sync/atomic.rs
+++ b/src/libcore/sync/atomic.rs
@@ -1989,7 +1989,9 @@ extern {
 }
 
 let mut atomic = ", stringify!($atomic_type), "::new(1);
-unsafe {
+",
+// SAFETY: Safe as long as `my_atomic_op` is atomic.
+"unsafe {
     my_atomic_op(atomic.as_mut_ptr());
 }
 # }