ref: abadb828b42e44dd0e50be143745a0c15d8c6c83
dir: /lib/std/test/striter.myr/
use std
const main = {
var chars = ['a', 'b', 'c']
var splits = ["foo", "+bar"]
var i
i = 0
for c in std.bychar("abc")
std.assert(chars[i++] == c, "wrong char")
;;
std.assert(i == chars.len, "wrong split count")
i = 0
for sp in std.bysplit("foo+++bar", "++")
std.assert(std.streq(splits[i++], sp), "wrong split {}", sp)
;;
std.assert(i == splits.len, "wrong split count")
}