From d47cb21188ad1356fa7305ab2b87a7108c86abcd Mon Sep 17 00:00:00 2001
From: Urgau <urgau@numericable.fr>
Date: Mon, 3 Feb 2025 23:59:43 +0100
Subject: [PATCH] Add note about `FnPtr` being exposed as public bound

---
 library/core/src/marker.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/library/core/src/marker.rs b/library/core/src/marker.rs
index 01af964a83e26..c99feaca055a4 100644
--- a/library/core/src/marker.rs
+++ b/library/core/src/marker.rs
@@ -1070,6 +1070,9 @@ marker_impls! {
 }
 
 /// A common trait implemented by all function pointers.
+//
+// Note that while the trait is internal and unstable it is nevertheless
+// exposed as a public bound of the stable `core::ptr::fn_addr_eq` function.
 #[unstable(
     feature = "fn_ptr_trait",
     issue = "none",