Mercurial > urweb
view tests/functor.ur @ 1685:225b87d4a7df
Basis.toMilliseconds and diffInMilliseconds, based on a patch from Gergely Buday
author | Adam Chlipala <adam@chlipala.net> |
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date | Sat, 04 Feb 2012 11:01:06 -0500 |
parents | 71bafe66dbe1 |
children |
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signature S = sig type t val z : t val s : t -> t end signature T = sig type t val three : t end functor F (M : S) : T where type t = M.t = struct type t = M.t val three = M.s (M.s (M.s M.z)) end structure O = F (struct type t = int val z = 0 val s = fn x : t => x end) val three : int = O.three structure S = struct type t = int val z = 0 val s = fn x : t => x end structure SO = F (S) val three : int = SO.three structure SS : S = S structure SSO = F (SS) val three : SS.t = SSO.three val main = three