GHCI segfault on Double math

2012-12-07 Thread Ron Alford 
I'm trying to see if this is reproducible, or it's just my machine.
I'm on a MacBook Pro (15-inch, Mid 2012), OS X 10.8.2, Haskell Platform
2012.4.0.0 (32 bit):

$ ghci
GHCi, version 7.4.2: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude properFraction (-1.1 :: Float)
(-1,-0.10024)
Prelude properFraction (1.1 :: Double)
(1,0.10009)
Prelude properFraction (-1.1 :: Double)
(-1,Segmentation fault: 11

'ceiling' and other code that uses properFraction segfaults on negative
doubles, too.

Compiled code doesn't have this defect.  I'm going to try the 64 bit
version to see if it resolves this problem.


-Ron Alford
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Re: GHCI segfault on Double math

2012-12-07 Thread Ian Lynagh 

Hi Ron,

On Fri, Dec 07, 2012 at 03:33:01PM -0500, Ron Alford wrote:
 I'm trying to see if this is reproducible, or it's just my machine.

This sounds like
http://hackage.haskell.org/trac/ghc/ticket/7043


Thanks
Ian


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