[GHC] #15081: Finite list becomes infinite after maping fractional function for high numbers

[GHC]

#15081: Finite list becomes infinite after maping fractional function for high
numbers
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        Reporter:  Onsed             |                Owner:  (none)
            Type:  bug               |               Status:  patch
        Priority:  normal            |            Milestone:  8.6.1
       Component:  Compiler          |              Version:  8.2.2
      Resolution:                    |             Keywords:
Operating System:  Linux             |         Architecture:  x86_64
                                     |  (amd64)
 Type of failure:  Incorrect result  |            Test Case:
  at runtime                         |  libraries/base/tests/enumNumeric
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):  Phab:D4650
       Wiki Page:                    |
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Comment (by sighingnow):

 This ticket should be fixed by Phab:D4650, by using an increment
 accumulator to get the next enumerated number rather than adding 1 to
 previous number at every run.

 For more related discussion about the implementation and the result the
 benchmark, see Phab:D4650, and `Note [Numeric Stability of Enumerating
 Floating Numbers]` in base/GHC/Real.hs.

-- 
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/15081#comment:8>
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