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Showing content from https://github.com/rust-lang/rust/issues/129396 below:

Tracking Issue for `new_zeroed_alloc` · Issue #129396 · rust-lang/rust · GitHub

Feature gate: #![feature(new_zeroed_alloc)]

Split-out from #63291 as a result of stabilizing most of its API! It's zeroed instead of uninit constructors, nothing too complicated!

It's new_zeroed and new_zeroed_slice on every major allocation type like Box, Rc, Arc.

impl<T> Box<T> { pub fn new_zeroed() -> Box<MaybeUninit<T>> {…} }
impl<T> Arc<T> { pub fn new_zeroed() -> Arc<MaybeUninit<T>> {…} }
impl<T> Rc<T> { pub fn new_zeroed() -> Rc<MaybeUninit<T>> {…} }

impl<[T]> Box<T> { pub fn new_zeroed_slice() -> Box<MaybeUninit<[T]>> {…} }
impl<[T]> Arc<T> { pub fn new_zeroed_slice() -> Arc<MaybeUninit<[T]>> {…} }
impl<[T]> Rc<T> { pub fn new_zeroed_slice() -> Rc<MaybeUninit<[T]>> {…} }

• Implementation: #...
  • added in alloc: Add new_zeroed() versions like new_uninit(). #66128
  • other API was added in Tracking issue for uninitialized constructors for Box, Rc, Arc #63291
• Final comment period (FCP)¹
• Stabilization PR

• idk lol

1. https://std-dev-guide.rust-lang.org/feature-lifecycle/stabilization.html ↩

nazar-pc, viliml and thaliaarchikkysen, bjoernager, joseluis, airblast-dev, Okeyer and 2 more

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