Mercurial > urweb
view demo/list.ur @ 1077:a3273bee05a9
Initial generalization of Especialize, with security bug known
author | Adam Chlipala <adamc@hcoop.net> |
---|---|
date | Tue, 15 Dec 2009 12:26:00 -0500 |
parents | 669ac5e9a69e |
children |
line wrap: on
line source
datatype list t = Nil | Cons of t * list t fun length [t] (ls : list t) = let fun length' (ls : list t) (acc : int) = case ls of Nil => acc | Cons (_, ls') => length' ls' (acc + 1) in length' ls 0 end fun rev [t] (ls : list t) = let fun rev' (ls : list t) (acc : list t) = case ls of Nil => acc | Cons (x, ls') => rev' ls' (Cons (x, acc)) in rev' ls Nil end