Repository: rust
Issue: Tracking Issue for raw array getters (array_ptr_get)
Labels: T-libs-api,C-tracking-issue

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Feature gate: `#![feature(array_ptr_get)]`

This is a tracking issue for `as_(mut_)ptr` and `as_(mut_)slice` methods on raw array pointers, i.e. `*(const/mut) [T; N]`.

See also:
- Similar methods for raw slices: https://github.com/rust-lang/rust/issues/74265

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### Public API

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```rust
impl<T, const N: usize> *mut [T; N] {
    pub fn as_mut_ptr(self) -> *mut T {}
    pub fn as_mut_slice(self) -> *mut [T] {}
}

impl<T, const N: usize> *const [T; N] {
    pub const fn as_ptr(self) -> *const T {}
    pub const fn as_slice(self) -> *const [T] {}
}
```

### Steps / History

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- [X] ACP: https://github.com/rust-lang/libs-team/issues/321
- [x] Implementation: #119411 
- [ ] Final comment period (FCP)[^1]
- [ ] Stabilization PR

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### Unresolved Questions

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- If arbitrary_self_types (https://github.com/rust-lang/rfcs/pull/3519) is accepted, these methods may be changed to have a `*(const/mut) Self` receiver. Also, if a deref-like coercion mechanism is added (specifically, `*[T; N]` -> `*[T]`, similar to the non-raw counterparts), these methods might become redundant.

[^1]: https://std-dev-guide.rust-lang.org/feature-lifecycle/stabilization.html