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025cf96615
Stabilize `{slice,array}::from_ref`
This PR stabilizes the following APIs as `const` functions in Rust `1.63`:
```rust
// core::array
pub const fn from_ref<T>(s: &T) -> &[T; 1];
// core::slice
pub const fn from_ref<T>(s: &T) -> &[T];
```
Note that the `mut` versions are not stabilized as unique references (`&mut _`) are [unstable in const context].
FCP: https://github.com/rust-lang/rust/issues/90206#issuecomment-1134586665
r? rust-lang/libs-api `@rustbot` label +T-libs-api -T-libs
[unstable in const context]: https://github.com/rust-lang/rust/issues/57349
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| alloc | ||
| backtrace@4e5a3f7292 | ||
| core | ||
| panic_abort | ||
| panic_unwind | ||
| portable-simd | ||
| proc_macro | ||
| profiler_builtins | ||
| rtstartup | ||
| rustc-std-workspace-alloc | ||
| rustc-std-workspace-core | ||
| rustc-std-workspace-std | ||
| std | ||
| stdarch@28335054b1 | ||
| test | ||
| unwind | ||