ref: 3f5de2514eb4a90a8f7925bbeaf6dfdfb07debf8
dir: /lib/iter/test/zip.myr/
use std
use iter
const main = {
var n
n = 0
for (a, b) : iter.byzip([0,2,4,6,8][:], [2,4][:])
std.assert(a == n*2, "invalid val from a: {}", a)
std.assert(b == n*2 + 2, "invalid val from b: {}", b)
n++
;;
}