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add tracking issue

This commit is contained in:
Bastian Kauschke 2020-09-23 13:48:21 +02:00
parent 179f63dafc
commit ed97b42105
1 changed files with 2 additions and 2 deletions
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4
library/core/src/array/mod.rs
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@ -20,14 +20,14 @@ mod iter;
pub use iter::IntoIter;
/// Converts a reference to `T` into a reference to an array of length 1 (without copying).
#[unstable(feature = "array_from_ref", issue = "none")]
#[unstable(feature = "array_from_ref", issue = "77101")]
pub fn from_ref<T>(s: &T) -> &[T; 1] {
// SAFETY: Converting `&T` to `&[T; 1]` is sound.
unsafe { &*(s as *const T).cast::<[T; 1]>() }
}
/// Converts a mutable reference to `T` into a mutable reference to an array of length 1 (without copying).
#[unstable(feature = "array_from_ref", issue = "none")]
#[unstable(feature = "array_from_ref", issue = "77101")]
pub fn from_mut<T>(s: &mut T) -> &mut [T; 1] {
// SAFETY: Converting `&mut T` to `&mut [T; 1]` is sound.
unsafe { &mut *(s as *mut T).cast::<[T; 1]>() }