annotate tests/pprint.ur @ 2218:f7113855f3b7

More invalidation progress.
author Ziv Scully <ziv@mit.edu>
date Tue, 11 Nov 2014 04:25:20 -0500
parents 318ba997a149
children
rev   line source
adam@1727 1 fun isNone [a] (x : option a) =
adam@1727 2 case x of
adam@1727 3 None => True
adam@1727 4 | Some _ => False