[GHC] #5683: bug in signum function

[GHC]

#5683: bug in signum function
-------------------------------------+-------------------------------------
        Reporter:  tristes_tigres    |                Owner:
            Type:  bug               |               Status:  closed
        Priority:  normal            |            Milestone:  7.6.1
       Component:  Prelude           |              Version:  7.0.3
      Resolution:  fixed             |             Keywords:
Operating System:  Unknown/Multiple  |         Architecture:
                                     |  Unknown/Multiple
 Type of failure:  Other             |            Test Case:
      Blocked By:                    |             Blocking:
 Related Tickets:                    |  Differential Rev(s):
       Wiki Page:                    |
-------------------------------------+-------------------------------------

Comment (by tristes_tigres):

 Replying to [comment:12 rwbarton]:
 > This was fixed in 7.10.1. `signum (-0.0)` is `-0.0` now as well.

 Just tried it on haskell.org page

 signum(0.0/0.0)

 -1.0 :: Fractional a => a

 Doesn't look right to me.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/5683#comment:13>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler