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Implement From<{&,&mut} [T; N]> for Vec<T>

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This commit is contained in:
EFanZh 2023-07-15 19:20:41 +08:00
parent 55be59d2ce
commit 27e10e2b5e
2 changed files with 40 additions and 0 deletions
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30
library/alloc/src/vec/mod.rs
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@ -3101,6 +3101,36 @@ impl<T: Clone> From<&mut [T]> for Vec<T> {
}
}
#[cfg(not(no_global_oom_handling))]
#[stable(feature = "vec_from_array_ref", since = "CURRENT_RUSTC_VERSION")]
impl<T: Clone, const N: usize> From<&[T; N]> for Vec<T> {
/// Allocate a `Vec<T>` and fill it by cloning `s`'s items.
///
/// # Examples
///
/// ```
/// assert_eq!(Vec::from(&[1, 2, 3]), vec![1, 2, 3]);
/// ```
fn from(s: &[T; N]) -> Vec<T> {
Self::from(s.as_slice())
}
}
#[cfg(not(no_global_oom_handling))]
#[stable(feature = "vec_from_array_ref", since = "CURRENT_RUSTC_VERSION")]
impl<T: Clone, const N: usize> From<&mut [T; N]> for Vec<T> {
/// Allocate a `Vec<T>` and fill it by cloning `s`'s items.
///
/// # Examples
///
/// ```
/// assert_eq!(Vec::from(&mut [1, 2, 3]), vec![1, 2, 3]);
/// ```
fn from(s: &mut [T; N]) -> Vec<T> {
Self::from(s.as_mut_slice())
}
}
#[cfg(not(no_global_oom_handling))]
#[stable(feature = "vec_from_array", since = "1.44.0")]
impl<T, const N: usize> From<[T; N]> for Vec<T> {