#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 lerkok): @carter: Good point; I haven't considered the implications of encoding of the input literals. Nonetheless, the experiment you suggested prints precisely the same results: {{{ [ubuntu-VirtualBox]~/precision>ghc main.hs -o main -msse2 -fforce-recomp ; ./main ; ghc main.hs -o main -fexcess-precision -fforce-recomp; ./main [1 of 1] Compiling Main ( main.hs, main.o ) Linking main ... (-6192449487634422,-49) [1 of 1] Compiling Main ( main.hs, main.o ) Linking main ... (-6192449487634422,-49) }}} which still differ from the behavior on 64-bit platforms. So, I'm still inclined to think something is off here. -- Ticket URL: http://ghc.haskell.org/trac/ghc/ticket/9304#comment:11 GHC http://www.haskell.org/ghc/ The Glasgow Haskell Compiler