[GHC] #1517: Ratio Int is not well ordered

GHC trac at galois.com
Sat Jul 21 14:27:23 EDT 2007


#1517: Ratio Int is not well ordered
-----------------------------------+----------------------------------------
    Reporter:  dbenbenn at gmail.com  |        Owner:                  
        Type:  bug                 |       Status:  new             
    Priority:  normal              |    Milestone:                  
   Component:  libraries/base      |      Version:  6.6.1           
    Severity:  normal              |   Resolution:                  
    Keywords:                      |   Difficulty:  Moderate (1 day)
          Os:  Multiple            |     Testcase:                  
Architecture:  Multiple            |  
-----------------------------------+----------------------------------------
Changes (by dbenbenn at gmail.com):

  * difficulty:  Easy (1 hr) => Moderate (1 day)

Comment:

 I've attached a patch to Real.lhs that mostly fixes the problem.  If you
 apply the patch to GHC 6.6.1 and recompile, then compile demo.hs with the
 new ghc, it will give the right output.  demo.hs will also work right with
 the new ghci command.

 runhaskell and runghc, however, still have the bug.  I haven't been able
 to figure out where their implementation of Ratio is coming from.

-- 
Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1517>
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