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Abstract type for evalExp state; handle WHERE conditions soundly
author Adam Chlipala <adamc@hcoop.net>
date Sat, 10 Apr 2010 10:24:13 -0400
parents 71bafe66dbe1
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"