Chris Kuklewicz wrote: > Cyril Schmidt wrote: >> I need to pass a big 2-dimensional array of doubles from a legacy >> C code to a Haskell module. Of this huge array, the Haskell code will >> actually use only >> a few elements (say, 10 out of 100x20 matrix). Unfortunately, the C code >> does not know >> which data are actually needed in the Haskell module. > > You probably want Foreign.Marshal.Array > > http://www.haskell.org/ghc/docs/6.4.1/html/libraries/base/Foreign-Marshal-Array.html > > peekArray :: Storable a => Int -> Ptr a -> IO [a] > This works, but peekArray is very slow.
Cheers Cyril _______________________________________________ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://www.haskell.org/mailman/listinfo/glasgow-haskell-users