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view tests/sig_wild.ur @ 1668:64c1e65c2365
Prevent horrifying loops in unification variable graph
author | Adam Chlipala <adam@chlipala.net> |
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date | Mon, 09 Jan 2012 16:20:10 -0500 |
parents | 71bafe66dbe1 |
children |
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signature S = sig type t val x : t end structure M : S = struct type t = _ val x = 0 end