If you don't mind a small performance penalty, have you considered
using my library data-binary-ieee754? It contains functions for
parsing floats and doubles within the Get monad.
On Mon, Sep 14, 2009 at 12:24, minh thu
Hi,
I'd like to know if this should work:
-- GHC coercion getFloat :: BHeader -> Get Float getFloat h = case endianness h of LittleEndian -> fmap (coerce . fromIntegral) getWord32le BigEndian -> fmap (coerce . fromIntegral) getWord32be where coerce (I32# x) = F# (unsafeCoerce# x)
-- GHC coercion getDouble :: BHeader -> Get Double getDouble h = case endianness h of LittleEndian -> fmap (coerce . fromIntegral) getWord64le BigEndian -> fmap (coerce . fromIntegral) getWord64be where coerce (I64# x) = D# (unsafeCoerce# x)
Loading this into ghci compiles fine (but I haven't try to parse data), but compiling with ghc (6.10.1 or 6.10.4) reports: /tmp/ghc1967_0/ghc1967_0.s: Assembler messages:
/tmp/ghc1967_0/ghc1967_0.s:287:0: Error: bad register name `%fake0'
/tmp/ghc1967_0/ghc1967_0.s:349:0: Error: bad register name `%fake0'
Thanks for any help, Thu _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe