#9304: Floating point woes; Different behavior on Mac vs Linux -------------------------------------+------------------------------------ Reporter: lerkok | Owner: Type: bug | Status: new Priority: high | Milestone: Component: Compiler | Version: 7.8.3 Resolution: | Keywords: floating point Operating System: Unknown/Multiple | Architecture: Unknown/Multiple Type of failure: None/Unknown | Difficulty: Unknown Test Case: | Blocked By: 9276 Blocking: | Related Tickets: -------------------------------------+------------------------------------ Comment (by carter): I ran it on a 64 bit linux server i have using ghci {{{ Prelude> :set -XScopedTypeVariables Prelude> let x :: Double = -4.4 Prelude> let y :: Double = 2.4999999999999956 Prelude> decodeFloat (x*y) (-6192449487634421,-49) }}} so if anything, it looks like its 32bit vs 64bit could you try running the above snippet in GHCi on your 32bit machine? -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9304#comment:4 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler