ref: 65f6675040a4c29da1bd387e7dc22c823a69da97
dir: /lib/std/slput.myr/
use "types"
use "alloc"
use "die"
pkg std =
	generic slput	: (sl : @a[:], idx : size, elt : @a	-> @a[:])
;;
generic slput = {sl, idx, elt
	var i
	var len
	len = sl.len
	sl = slgrow(sl, sl.len + 1)
	for i = len - 1; i >= idx; i--
		sl[i + 1] = sl[i]
	;;
	sl[idx] = elt
	-> sl
}