view tests/pprint.ur @ 1984:819756825c8d

Merge in upstream
author Patrick Hurst <phurst@mit.edu>
date Fri, 14 Feb 2014 04:00:03 -0500
parents 318ba997a149
children
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fun isNone [a] (x : option a) =
    case x of
        None => True
      | Some _ => False