annotate tests/pprint.ur @ 2033:ea0ecd5fa9df

Add locking to enforce atomicity of message sends from one transaction
author Adam Chlipala <adam@chlipala.net>
date Fri, 27 Jun 2014 14:39:31 -0400
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