Don Stewart ha scritto:
[...] {-# LANGUAGE OverloadedStrings #-}import qualified Data.ByteString.Char8 as C isMatch :: C.ByteString -> Bool isMatch "match" = True isMatch _ = False main = print . map isMatch . C.lines =<< C.getContents
What is the reason why instance declarations for IsString class are not defined for available ByteStrings?
I need to define it by myself. Thanks Manlio Perillo _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
