Revert effects of PRs 81167 and 83091.

[rust.git] / library / core / src / mem / mod.rs

diff --git a/library/core/src/mem/mod.rs b/library/core/src/mem/mod.rs
index 5bf47c3951da22ff93397bf17e8abf315bf089c2..c6750c52d16c8616508247fc0a5f14cd2f9eb5ce 100644 (file)
--- a/library/core/src/mem/mod.rs
+++ b/library/core/src/mem/mod.rs
@@ -682,8 +682,7 @@ pub unsafe fn uninitialized<T>() -> T {
 /// ```
 #[inline]
 #[stable(feature = "rust1", since = "1.0.0")]
-#[rustc_const_unstable(feature = "const_swap", issue = "83163")]
-pub const fn swap<T>(x: &mut T, y: &mut T) {
+pub fn swap<T>(x: &mut T, y: &mut T) {
     // SAFETY: the raw pointers have been created from safe mutable references satisfying all the
     // constraints on `ptr::swap_nonoverlapping_one`
     unsafe {
@@ -813,8 +812,7 @@ pub fn take<T: Default>(dest: &mut T) -> T {
 #[inline]
 #[stable(feature = "rust1", since = "1.0.0")]
 #[must_use = "if you don't need the old value, you can just assign the new value directly"]
-#[rustc_const_unstable(feature = "const_replace", issue = "83164")]
-pub const fn replace<T>(dest: &mut T, src: T) -> T {
+pub fn replace<T>(dest: &mut T, src: T) -> T {
     // SAFETY: We read from `dest` but directly write `src` into it afterwards,
     // such that the old value is not duplicated. Nothing is dropped and
     // nothing here can panic.