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view tests/sig_wild.ur @ 1742:fca4a6d05ac1
More diagnostic information about some type class resolution failures
author | Adam Chlipala <adam@chlipala.net> |
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date | Fri, 04 May 2012 10:33:04 -0400 |
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