Function brownstone::try_build_iter

pub fn try_build_iter<I: IntoIterator, const N: usize>(
    iterator: I
) -> Option<[I::Item; N]>

Build a fixed-size array from an iterator. The first N elements of the iterator are collected into an array of length N. Returns None if the iterator doesn’t yield enough elements.

Example

let array: [i32; 5] = brownstone::try_build_iter(1..).unwrap();
assert_eq!(array, [1, 2, 3, 4, 5]);

Iterator too short

let array: Option<[i32; 10]> = brownstone::try_build_iter(1..5);
assert!(array.is_none());