Auto merge of #68234 - CAD97:slice-from-raw-parts, r=KodrAus
Stabilize ptr::slice_from_raw_parts[_mut] Closes #36925, the tracking issue. Initial impl: #60667 r? @rust-lang/libs In addition to stabilizing, I've adjusted the example of `ptr::slice_from_raw_parts` to use `slice_from_raw_parts` instead of `slice_from_raw_parts_mut`, which was unnecessary for the example as written.
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82018665a5
3 changed files with 5 additions and 8 deletions
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@ -104,7 +104,6 @@
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#![feature(ptr_offset_from)]
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#![feature(rustc_attrs)]
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#![feature(receiver_trait)]
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#![feature(slice_from_raw_parts)]
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#![feature(specialization)]
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#![feature(staged_api)]
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#![feature(std_internals)]
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@ -238,17 +238,16 @@ pub(crate) struct FatPtr<T> {
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/// # Examples
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///
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/// ```rust
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/// #![feature(slice_from_raw_parts)]
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/// use std::ptr;
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///
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/// // create a slice pointer when starting out with a pointer to the first element
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/// let mut x = [5, 6, 7];
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/// let ptr = &mut x[0] as *mut _;
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/// let slice = ptr::slice_from_raw_parts_mut(ptr, 3);
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/// let x = [5, 6, 7];
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/// let ptr = x.as_ptr();
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/// let slice = ptr::slice_from_raw_parts(ptr, 3);
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/// assert_eq!(unsafe { &*slice }[2], 7);
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/// ```
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#[inline]
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#[unstable(feature = "slice_from_raw_parts", reason = "recently added", issue = "36925")]
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#[stable(feature = "slice_from_raw_parts", since = "1.42.0")]
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#[rustc_const_unstable(feature = "const_slice_from_raw_parts", issue = "67456")]
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pub const fn slice_from_raw_parts<T>(data: *const T, len: usize) -> *const [T] {
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unsafe { Repr { raw: FatPtr { data, len } }.rust }
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@ -265,7 +264,7 @@ pub const fn slice_from_raw_parts<T>(data: *const T, len: usize) -> *const [T] {
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/// [`slice_from_raw_parts`]: fn.slice_from_raw_parts.html
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/// [`from_raw_parts_mut`]: ../../std/slice/fn.from_raw_parts_mut.html
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#[inline]
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#[unstable(feature = "slice_from_raw_parts", reason = "recently added", issue = "36925")]
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#[stable(feature = "slice_from_raw_parts", since = "1.42.0")]
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#[rustc_const_unstable(feature = "const_slice_from_raw_parts", issue = "67456")]
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pub const fn slice_from_raw_parts_mut<T>(data: *mut T, len: usize) -> *mut [T] {
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unsafe { Repr { raw: FatPtr { data, len } }.rust_mut }
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@ -36,7 +36,6 @@
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#![feature(iter_is_partitioned)]
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#![feature(iter_order_by)]
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#![feature(cmp_min_max_by)]
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#![feature(slice_from_raw_parts)]
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#![feature(const_slice_from_raw_parts)]
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#![feature(const_raw_ptr_deref)]
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#![feature(never_type)]
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