Mercurial > urweb

view tests/pcase.ur @ 1576:f6c74b4bc4e6

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Change error message display order: only show disjointness/type class failures if all record unifications succeeded
author Adam Chlipala <adam@chlipala.net>
date Sat, 15 Oct 2011 10:31:30 -0400
parents 71bafe66dbe1
children
line wrap: on
line source
val flip = fn x : int => case x of 0 => 1 | _ => 0

val zero = flip 1
val one = flip 0

val flipS = fn x : string => case x of "" => "Hello world!" | _ => ""

val s1 = flipS ""
val s2 = flipS "Boop"