view tests/pcase.lac @ 213:0343557355fc

Explifying type classes
author Adam Chlipala <adamc@hcoop.net>
date Sat, 16 Aug 2008 14:45:23 -0400
parents 8221b95cc24c
children
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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"