Bjorn, I am initializing a list from a file. I am reading the lines from the file, splitting them into bytestring and then converting them to float. Should I be using String -> Float or ByteString -> Float?
thanks Daryoush On Tue, Aug 26, 2008 at 6:01 AM, Bjorn Bringert <[EMAIL PROTECTED]> wrote: > 2008/8/24 Daryoush Mehrtash <[EMAIL PROTECTED]>: > > I am trying to convert a string to a float. It seems that > Data.ByteString > > library only supports readInt. After some googling I came accross a > > possibloe implementation: http://sequence.svcs.cs.pdx.edu/node/373 > > > > My questions are: > > > > a) is there a standard library implementation of string -> Double and > float? > > b) Why is it that the ByteString only supports readInt? Is there a reason > > for it? > > Hi Daryoush, > > are you really looking for ByteString -> Float conversion, or just > plain String -> Float? The latter is really simple, the function is > called 'read' and is available in the Prelude: > > $ ghci > GHCi, version 6.8.3: http://www.haskell.org/ghc/ :? for help > Loading package base ... linking ... done. > Prelude> read "3.14" :: Float > 3.14 > > /Bjorn > /
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