[GHC] #13061: Incorrect constraints given single flexible undecidable instance.

GHC ghc-devs at haskell.org
Tue Jan 3 21:08:08 UTC 2017


#13061: Incorrect constraints given single flexible undecidable instance.
-------------------------------------+-------------------------------------
        Reporter:  JCarr             |                Owner:
            Type:  bug               |               Status:  new
        Priority:  normal            |            Milestone:
       Component:  Compiler (Type    |              Version:  8.0.1
  checker)                           |             Keywords:  Constraint,
      Resolution:                    |  UndecidableInstances,
                                     |  FlexibleInstances
Operating System:  Unknown/Multiple  |         Architecture:
 Type of failure:  GHC rejects       |  Unknown/Multiple
  valid program                      |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
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Changes (by JCarr):

 * type:  feature request => bug


--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/13061#comment:5>
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