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| author | León Orell Valerian Liehr <me@fmease.dev> | 2025-02-26 19:03:53 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-02-26 19:03:53 +0100 |
| commit | bcfff3d40a4426cd31c508005f317f3c20122791 (patch) | |
| tree | 1f2531719b50f05d317dba07f8e9028e27c3f5a9 | |
| parent | ac91805f3179fc2225c60e8ccf5a1daa09d43f3d (diff) | |
| parent | f0a6af0baa886c1559dafc9e943850800a9fabc8 (diff) | |
| download | rust-bcfff3d40a4426cd31c508005f317f3c20122791.tar.gz rust-bcfff3d40a4426cd31c508005f317f3c20122791.zip | |
Rollup merge of #134585 - cyrgani:uninit_array, r=Amanieu
remove `MaybeUninit::uninit_array` Closes #134584. Closes #66845. The future of this unstable method was described in https://github.com/rust-lang/rust/pull/125082#issuecomment-2161242816. Since `inline_const` was stabilized in 1.79 (4 stable releases away) and no one expressed interest for keeping it in https://github.com/rust-lang/rust/issues/96097, I think it can be removed now as it is not a stable method.
| -rw-r--r-- | library/core/src/mem/maybe_uninit.rs | 36 |
1 files changed, 0 insertions, 36 deletions
diff --git a/library/core/src/mem/maybe_uninit.rs b/library/core/src/mem/maybe_uninit.rs index 786a5a5b6bb..067371c1b58 100644 --- a/library/core/src/mem/maybe_uninit.rs +++ b/library/core/src/mem/maybe_uninit.rs @@ -331,42 +331,6 @@ impl<T> MaybeUninit<T> { MaybeUninit { uninit: () } } - /// Creates a new array of `MaybeUninit<T>` items, in an uninitialized state. - /// - /// Note: in a future Rust version this method may become unnecessary - /// when Rust allows - /// [inline const expressions](https://github.com/rust-lang/rust/issues/76001). - /// The example below could then use `let mut buf = [const { MaybeUninit::<u8>::uninit() }; 32];`. - /// - /// # Examples - /// - /// ```no_run - /// #![feature(maybe_uninit_uninit_array, maybe_uninit_slice)] - /// - /// use std::mem::MaybeUninit; - /// - /// unsafe extern "C" { - /// fn read_into_buffer(ptr: *mut u8, max_len: usize) -> usize; - /// } - /// - /// /// Returns a (possibly smaller) slice of data that was actually read - /// fn read(buf: &mut [MaybeUninit<u8>]) -> &[u8] { - /// unsafe { - /// let len = read_into_buffer(buf.as_mut_ptr() as *mut u8, buf.len()); - /// buf[..len].assume_init_ref() - /// } - /// } - /// - /// let mut buf: [MaybeUninit<u8>; 32] = MaybeUninit::uninit_array(); - /// let data = read(&mut buf); - /// ``` - #[unstable(feature = "maybe_uninit_uninit_array", issue = "96097")] - #[must_use] - #[inline(always)] - pub const fn uninit_array<const N: usize>() -> [Self; N] { - [const { MaybeUninit::uninit() }; N] - } - /// Creates a new `MaybeUninit<T>` in an uninitialized state, with the memory being /// filled with `0` bytes. It depends on `T` whether that already makes for /// proper initialization. For example, `MaybeUninit<usize>::zeroed()` is initialized, |