#![feature(const_size_of_val)]
#![feature(const_slice_from_raw_parts_mut)]
#![feature(const_slice_ptr_len)]
+#![feature(const_slice_split_at_mut)]
#![feature(const_str_from_utf8_unchecked_mut)]
#![feature(const_swap)]
#![feature(const_trait_impl)]
#[inline]
#[track_caller]
#[must_use]
- pub fn split_at_mut(&mut self, mid: usize) -> (&mut [T], &mut [T]) {
+ #[rustc_const_unstable(feature = "const_slice_split_at_mut", issue = "101804")]
+ pub const fn split_at_mut(&mut self, mid: usize) -> (&mut [T], &mut [T]) {
assert!(mid <= self.len());
// SAFETY: `[ptr; mid]` and `[mid; len]` are inside `self`, which
// fulfills the requirements of `from_raw_parts_mut`.
/// assert_eq!(v, [1, 2, 3, 4, 5, 6]);
/// ```
#[unstable(feature = "slice_split_at_unchecked", reason = "new API", issue = "76014")]
+ #[rustc_const_unstable(feature = "const_slice_split_at_mut", issue = "101804")]
#[inline]
#[must_use]
- pub unsafe fn split_at_mut_unchecked(&mut self, mid: usize) -> (&mut [T], &mut [T]) {
+ pub const unsafe fn split_at_mut_unchecked(&mut self, mid: usize) -> (&mut [T], &mut [T]) {
let len = self.len();
let ptr = self.as_mut_ptr();