view tests/pprint.ur @ 1963:fec7beec96c7

Make that purity analysis a bit more lax again
author Adam Chlipala <adam@chlipala.net>
date Sun, 19 Jan 2014 14:31:55 -0500
parents 318ba997a149
children
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fun isNone [a] (x : option a) =
    case x of
        None => True
      | Some _ => False