[Haskell-cafe] two problems with Data.Binary and Data.ByteString
dons at galois.com
Wed Aug 13 00:43:15 EDT 2008
> >I'm starting to wonder if this isn't an issue with
> This simple test case fails:
> module Main where
> import qualified Data.ByteString.Lazy.Char8 as B
> main = do
> print =<< B.readFile "xxx"
> B.writeFile "xxx" =<< B.readFile "test.hs"
> If you replace B.readFile with readFile and B.writeFile with writeFile
> it works properly. ByteString bug?
Ah, that would be a bug in older ByteString implementations, that were a
bit incautious about closing handles. This example works for me with
You're looking for a post-Dec 19, 2007 release, after the patch,
Wed Dec 19 22:06:13 PST 2007 Don Stewart
* For lazy IO operations, be sure to hClose the resource on EOF
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