Macro generic_array::arr
source · macro_rules! arr { ($($x:expr),* $(,)*) => { ... }; ($x:expr; $N:ty) => { ... }; ($x:expr; $n:expr) => { ... }; }
Expand description
Macro allowing for easy construction of Generic Arrays.
Type-inference works similarly to vec![]
arr!
can be used in const
expressions.
Example:
use generic_array::typenum::U6;
let test = arr![1, 2, 3]; // implicit length
let test = arr![1; 6]; // explicit length via `Const<N>`
let test = arr![1; U6]; // explicit length via typenum
§NOTES AND LIMITATIONS
- As of
generic-array 1.0
,From
/from_array
can be used directly for a wide range of regular arrays. - The
[T; N: ArrayLength]
and[T; usize]
explicit forms are limited toCopy
values. UseGenericArray::generate(|| value.clone())
for non-Copy
items. - The
[T; usize]
explicit and[0, 1, 2, 3]
implicit forms are limited to lengths supported byConst<U>