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Stabilize core::array::from_fn

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Caio
2022-05-20 11:04:13 -03:00
parent 512a328e2f
commit d917112606
3 changed files with 7 additions and 9 deletions
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12
library/core/src/array/mod.rs
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@@ -31,14 +31,12 @@ pub use iter::IntoIter;
/// # Example
///
/// ```rust
/// #![feature(array_from_fn)]
///
/// let array = core::array::from_fn(|i| i);
/// assert_eq!(array, [0, 1, 2, 3, 4]);
/// ```
#[inline]
#[unstable(feature = "array_from_fn", issue = "89379")]
pub fn from_fn<F, T, const N: usize>(mut cb: F) -> [T; N]
#[stable(feature = "array_from_fn", since = "1.63.0")]
pub fn from_fn<T, const N: usize, F>(mut cb: F) -> [T; N]
where
F: FnMut(usize) -> T,
{
@@ -65,7 +63,7 @@ where
/// # Example
///
/// ```rust
/// #![feature(array_from_fn)]
/// #![feature(array_try_from_fn)]
///
/// let array: Result<[u8; 5], _> = std::array::try_from_fn(|i| i.try_into());
/// assert_eq!(array, Ok([0, 1, 2, 3, 4]));
@@ -80,8 +78,8 @@ where
/// assert_eq!(array, None);
/// ```
#[inline]
#[unstable(feature = "array_from_fn", issue = "89379")]
pub fn try_from_fn<F, R, const N: usize>(cb: F) -> ChangeOutputType<R, [R::Output; N]>
#[unstable(feature = "array_try_from_fn", issue = "89379")]
pub fn try_from_fn<R, const N: usize, F>(cb: F) -> ChangeOutputType<R, [R::Output; N]>
where
F: FnMut(usize) -> R,
R: Try,