From fa3156ec427192d3ebe3992f1c49b542d3d1179a Mon Sep 17 00:00:00 2001
From: rhysd <lin90162@yahoo.co.jp>
Date: Fri, 15 Jul 2022 17:05:50 +0900
Subject: add `#[must_use]` to `Box::from_raw`

---
 library/alloc/src/boxed.rs | 1 +
 1 file changed, 1 insertion(+)

(limited to 'library/alloc')

diff --git a/library/alloc/src/boxed.rs b/library/alloc/src/boxed.rs
index d83bab7bbbd..c1ceeb0deb8 100644
--- a/library/alloc/src/boxed.rs
+++ b/library/alloc/src/boxed.rs
@@ -949,6 +949,7 @@ impl<T: ?Sized> Box<T> {
     /// [`Layout`]: crate::Layout
     #[stable(feature = "box_raw", since = "1.4.0")]
     #[inline]
+    #[must_use = "call `drop(from_raw(ptr))` if you intend to drop the `Box`"]
     pub unsafe fn from_raw(raw: *mut T) -> Self {
         unsafe { Self::from_raw_in(raw, Global) }
     }
-- 
cgit 1.4.1-3-g733a5