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Rollup merge of #92768 - ojeda:stabilize-maybe_uninit_extra, r=Mark-Simulacrum

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Partially stabilize `maybe_uninit_extra`

This covers:

```rust
impl<T> MaybeUninit<T> {
    pub unsafe fn assume_init_read(&self) -> T { ... }
    pub unsafe fn assume_init_drop(&mut self) { ... }
}
```

It does not cover the const-ness of `write` under `const_maybe_uninit_write` nor the const-ness of `assume_init_read` (this commit adds `const_maybe_uninit_assume_init_read` for that).

FCP: https://github.com/rust-lang/rust/issues/63567#issuecomment-958590287.

Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This commit is contained in:
Matthias Krüger 2022-01-14 07:47:33 +01:00 • committed by GitHub
commit 558da934c1
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4 changed files with 5 additions and 9 deletions
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library/alloc/src/lib.rs
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@ -119,7 +119,6 @@
#![feature(inplace_iteration)]
#![feature(iter_advance_by)]
#![feature(layout_for_ptr)]
#![feature(maybe_uninit_extra)]
#![feature(maybe_uninit_slice)]
#![cfg_attr(test, feature(new_uninit))]
#![feature(nonnull_slice_from_raw_parts)]