From 264c6d41aaa91f4bf13708b8adfe60913d9e28b3 Mon Sep 17 00:00:00 2001
From: nxsaken <nurzhan.sakenov@gmail.com>
Date: Sun, 9 Nov 2025 21:52:04 +0400
Subject: [PATCH] Constify `mem::take`

---
 library/core/src/mem/mod.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/library/core/src/mem/mod.rs b/library/core/src/mem/mod.rs
index 619e8a263db40..1a39a9a551603 100644
--- a/library/core/src/mem/mod.rs
+++ b/library/core/src/mem/mod.rs
@@ -807,7 +807,8 @@ pub const fn swap<T>(x: &mut T, y: &mut T) {
 /// ```
 #[inline]
 #[stable(feature = "mem_take", since = "1.40.0")]
-pub fn take<T: Default>(dest: &mut T) -> T {
+#[rustc_const_unstable(feature = "const_default", issue = "143894")]
+pub const fn take<T: [const] Default>(dest: &mut T) -> T {
     replace(dest, T::default())
 }