From 9b0094eda7a36e1b92d74e39f374850bcbeb457a Mon Sep 17 00:00:00 2001
From: Yilin Chen <1479826151@qq.com>
Date: Sun, 5 Jul 2026 16:46:06 +0800
Subject: [PATCH] Add supplementary information for as_uninit_mut

---
 library/core/src/ptr/mut_ptr.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/library/core/src/ptr/mut_ptr.rs b/library/core/src/ptr/mut_ptr.rs
index b333f8217b2c0..b135ab6175783 100644
--- a/library/core/src/ptr/mut_ptr.rs
+++ b/library/core/src/ptr/mut_ptr.rs
@@ -638,6 +638,8 @@ impl<T: PointeeSized> *mut T {
     ///
     /// When calling this method, you have to ensure that *either* the pointer is null *or*
     /// the pointer is [convertible to a reference](crate::ptr#pointer-to-reference-conversion).
+    /// Note that because the created reference is to `MaybeUninit<T>`, the
+    /// source pointer can point to uninitialized memory.
     ///
     /// # Panics during const evaluation
     ///