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annotate tests/sig_wild.ur @ 312:f387d12193ba

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Datatype positivity check
author Adam Chlipala <adamc@hcoop.net>
date Tue, 09 Sep 2008 09:15:00 -0400
parents 71bafe66dbe1
children
rev   line source
adamc@77 1 signature S = sig
adamc@77 2 type t
adamc@77 3 val x : t
adamc@77 4 end
adamc@77 5
adamc@77 6 structure M : S = struct
adamc@77 7 type t = _
adamc@77 8 val x = 0
adamc@77 9 end