Implement cast_slice for raw pointer types
#149110
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Rollup of 12 pull requests Successful merges: - #150474 (Tidy: detect ui tests subdirectory changes so `tests/ui/README.md` stays in sync) - #150572 (Improve move error diagnostic for `AsyncFn` closures) - #151596 (Fix -Zmir-enable-passes to detect unregistered enum names in declare_passes macro) - #151802 (Make `QueryDispatcher::Qcx` an associated type) - #149110 (Implement `cast_slice` for raw pointer types) - #151559 ([rustdoc] Add a marker to tell users that there are hidden (deprecated) items in the search results) - #151665 (Fix contrast ratio for `Since` element in rustdoc dark theme) - #151785 (Stabilize feature(push_mut)) - #151798 (Update `askama` to `0.15.3`) - #151800 (Subscribe myself to translation diagnostics) - #151804 (Document, sort, and tweak spellcheck entries in `typos.toml`) - #151805 (Fix grammar in `env::current_exe()#Security`)
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Rollup merge of #149110 - Paladynee:acp/ptr_cast_slice, r=jhpratt Implement `cast_slice` for raw pointer types Tracking issue: #149103 This PR implements the method `cast_slice` that defers to the respective `slice_from_raw_parts` call for `*const T`, `*mut T` and `NonNull<T>`, and copies over their documentation. ```rust impl<T> *const T { pub const fn cast_slice(self, len: usize) -> *const [T]; } impl<T> *mut T { pub const fn cast_slice(self, len: usize) -> *mut [T]; } impl<T> NonNull<T> { pub const fn cast_slice(self, len: usize) -> NonNull<[T]>; } ```
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Tracking issue: #149103
This PR implements the method
cast_slicethat defers to the respectiveslice_from_raw_partscall for*const T,*mut TandNonNull<T>, and copies over their documentation.