squiid/rust
1
0
Fork 0
Code Issues Pull requests Projects Activity

Rollup merge of #77228 - GuillaumeGomez:maybeuninit-examples, r=pickfire

Browse source 
Add missing examples for MaybeUninit

r? @Dylan-DPC
This commit is contained in:
Yuki Okushi 2020-10-06 16:26:00 +09:00 committed by GitHub
parent d50349ba8d b1ce6190ae
commit d7123c2393
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
1 changed files with 16 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

18
library/core/src/mem/maybe_uninit.rs
View file

@ -246,6 +246,14 @@ impl<T> MaybeUninit<T> {
/// Note that dropping a `MaybeUninit<T>` will never call `T`'s drop code.
/// It is your responsibility to make sure `T` gets dropped if it got initialized.
///
/// # Example
///
/// ```
/// use std::mem::MaybeUninit;
///
/// let v: MaybeUninit<Vec<u8>> = MaybeUninit::new(vec![42]);
/// ```
///
/// [`assume_init`]: MaybeUninit::assume_init
#[stable(feature = "maybe_uninit", since = "1.36.0")]
#[rustc_const_stable(feature = "const_maybe_uninit", since = "1.36.0")]
@ -259,9 +267,15 @@ impl<T> MaybeUninit<T> {
/// Note that dropping a `MaybeUninit<T>` will never call `T`'s drop code.
/// It is your responsibility to make sure `T` gets dropped if it got initialized.
///
/// See the [type-level documentation][type] for some examples.
/// See the [type-level documentation][MaybeUninit] for some examples.
///
/// [type]: union.MaybeUninit.html
/// # Example
///
/// ```
/// use std::mem::MaybeUninit;
///
/// let v: MaybeUninit<String> = MaybeUninit::uninit();
/// ```
#[stable(feature = "maybe_uninit", since = "1.36.0")]
#[rustc_const_stable(feature = "const_maybe_uninit", since = "1.36.0")]
#[inline(always)]