impl CloneToUninit for Path and OsStr

1 files changed, 12 insertions, 0 deletions

diff --git a/library/std/src/sys/os_str/bytes.rs b/library/std/src/sys/os_str/bytes.rs
index 0f8bd645352..8529207366e 100644
--- a/library/std/src/sys/os_str/bytes.rs
+++ b/library/std/src/sys/os_str/bytes.rs
@@ -1,6 +1,9 @@
 //! The underlying OsString/OsStr implementation on Unix and many other
 //! systems: just a `Vec<u8>`/`[u8]`.
 
+use core::clone::CloneToUninit;
+use core::ptr::addr_of_mut;
+
 use crate::borrow::Cow;
 use crate::collections::TryReserveError;
 use crate::fmt::Write;
@@ -345,3 +348,12 @@ impl Slice {
         self.inner.eq_ignore_ascii_case(&other.inner)
     }
 }
+
+#[unstable(feature = "clone_to_uninit", issue = "126799")]
+unsafe impl CloneToUninit for Slice {
+    #[cfg_attr(debug_assertions, track_caller)]
+    unsafe fn clone_to_uninit(&self, dst: *mut Self) {
+        // SAFETY: we're just a wrapper around [u8]
+        unsafe { self.inner.clone_to_uninit(addr_of_mut!((*dst).inner)) }
+    }
+}