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view tests/pprint.ur @ 1773:b5f5e8d439c7

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Proper error messages for missing source files
author Adam Chlipala <adam@chlipala.net>
date Sat, 26 May 2012 09:16:14 -0400
parents 318ba997a149
children
line wrap: on
line source
fun isNone [a] (x : option a) =
    case x of
        None => True
      | Some _ => False