[Haskell-beginners] A first try
gale at sefer.org
Mon Jun 27 19:45:08 CEST 2011
David Place wrote:
>>> Suppose the file is only partially demanded as in the case I quoted earlier.
>>> print10 =
>>> contents <- withFile "/usr/share/dict/words" ReadMode (\h -> hGetContents h)
>>> print $ take 10 contents
>>> The file would never be closed.
>> I tried it - it does close the file.
> II'm not sure what you mean. Did you create a new version of withFile that behaves
> as Heinrich suggested? If so, please post its definition.
I just loaded Heinrich's withFile' in GHCi and ran it:
*WithFile> withFile' "/usr/share/dict/words" (print . take 10 . words)
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