From 19caa8c89bc0cec7e34c4e98d12e524c5b3bbcfe Mon Sep 17 00:00:00 2001 From: Maybe Waffle Date: Thu, 26 May 2022 13:06:29 +0400 Subject: [PATCH] Make `from{,_mut}_ptr_range` const - `from_ptr_range` uses `#![feature(slice_from_ptr_range_const)]` - `from_mut_ptr_range` uses `#![feature(slice_from_mut_ptr_range_const)]` --- library/core/src/slice/raw.rs | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/library/core/src/slice/raw.rs b/library/core/src/slice/raw.rs index 6bc60b04b5c6..fa24a481a1f6 100644 --- a/library/core/src/slice/raw.rs +++ b/library/core/src/slice/raw.rs @@ -213,7 +213,8 @@ pub const fn from_mut(s: &mut T) -> &mut [T] { /// /// [valid]: ptr#safety #[unstable(feature = "slice_from_ptr_range", issue = "89792")] -pub unsafe fn from_ptr_range<'a, T>(range: Range<*const T>) -> &'a [T] { +#[rustc_const_unstable(feature = "slice_from_ptr_range_const", issue = "89792")] +pub const unsafe fn from_ptr_range<'a, T>(range: Range<*const T>) -> &'a [T] { // SAFETY: the caller must uphold the safety contract for `from_ptr_range`. unsafe { from_raw_parts(range.start, range.end.sub_ptr(range.start)) } } @@ -263,7 +264,8 @@ pub unsafe fn from_ptr_range<'a, T>(range: Range<*const T>) -> &'a [T] { /// /// [valid]: ptr#safety #[unstable(feature = "slice_from_ptr_range", issue = "89792")] -pub unsafe fn from_mut_ptr_range<'a, T>(range: Range<*mut T>) -> &'a mut [T] { +#[rustc_const_unstable(feature = "slice_from_mut_ptr_range_const", issue = "89792")] +pub const unsafe fn from_mut_ptr_range<'a, T>(range: Range<*mut T>) -> &'a mut [T] { // SAFETY: the caller must uphold the safety contract for `from_mut_ptr_range`. unsafe { from_raw_parts_mut(range.start, range.end.sub_ptr(range.start)) } }