
2008/8/24 Daryoush Mehrtash
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