diff options
| author | bors <bors@rust-lang.org> | 2020-08-22 18:46:42 +0000 |
|---|---|---|
| committer | bors <bors@rust-lang.org> | 2020-08-22 18:46:42 +0000 |
| commit | 663d2f5cd3163f17eddb74ee1e028d542255f21a (patch) | |
| tree | 9fa6ffb91539e291d601c8ce585949a3ef830c0e /compiler/rustc_parse/src/parser/expr.rs | |
| parent | 5528caf91442729b47b8f818be0a0ddfd0c17ffb (diff) | |
| parent | 5aba816672d08a076eaa8005a109968af8ce1083 (diff) | |
| download | rust-663d2f5cd3163f17eddb74ee1e028d542255f21a.tar.gz rust-663d2f5cd3163f17eddb74ee1e028d542255f21a.zip | |
Auto merge of #75171 - amosonn:new_zeroed_slice, r=Amanieu
New zeroed slice
Add to #63291 the methods
```rust
impl<T> Box<[T]> { pub fn new_zeroed_slice(len: usize) -> Box<[MaybeUninit<T>]> {…} }
impl<T> Rc<[T]> { pub fn new_zeroed_slice(len: usize) -> Rc<[MaybeUninit<T>]> {…} }
impl<T> Arc<[T]> { pub fn new_zeroed_slice(len: usize) -> Arc<[MaybeUninit<T>]> {…} }
```
as suggested in https://github.com/rust-lang/rust/issues/63291#issuecomment-605511675 .
Also optimize `{Rc, Arc}::new_zeroed` to use `alloc_zeroed`, otherwise they are no more efficient than using `new_uninit` and zeroing the memory manually (which was the original implementation).
Diffstat (limited to 'compiler/rustc_parse/src/parser/expr.rs')
0 files changed, 0 insertions, 0 deletions