Function itertools::multiunzip

pub fn multiunzip<FromI, I>(i: I) -> FromI
where
    I: IntoIterator,
    I::IntoIter: MultiUnzip<FromI>,

Converts an iterator of tuples into a tuple of containers.

multiunzip() consumes an entire iterator of n-ary tuples, producing n collections, one for each column.

This function is, in some sense, the opposite of multizip.

use itertools::multiunzip;

let inputs = vec![(1, 2, 3), (4, 5, 6), (7, 8, 9)];

let (a, b, c): (Vec<_>, Vec<_>, Vec<_>) = multiunzip(inputs);

assert_eq!(a, vec![1, 4, 7]);
assert_eq!(b, vec![2, 5, 8]);
assert_eq!(c, vec![3, 6, 9]);