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Basic tail recursion introduction seems to be working
author Adam Chlipala <adamc@hcoop.net>
date Thu, 17 Sep 2009 16:35:11 -0400
parents 669ac5e9a69e
children 8d3aa6c7cee0
line wrap: on
line source
fun sum [t] (_ : num t) [fs ::: {Unit}] (fl : folder fs) (x : $(mapU t fs)) =
    foldUR [t] [fn _ => t]
    (fn [nm :: Name] [rest :: {Unit}] [[nm] ~ rest] n acc => n + acc)
    zero [fs] fl x

fun main () = return <xml><body>
  {[sum {A = 0, B = 1}]}<br/>
  {[sum {C = 2.1, D = 3.2, E = 4.3}]}
</body></xml>