Re: [Haskell-beginners] show vs. Data.ByteString.Char8.unpack for ByteString

Am Donnerstag 04 Februar 2010 21:46:39 schrieb Hong Yang:

Hi,

What is the difference between show and unpack when the function arguments are of ByteString type? I thought they are the same, but they are not interchangeable at compile time.

Thanks,

Hong

If you're using Data.ByteString, unpack has type ByteString -> [Word8] unpack and show are the same (perhaps excepting efficiency) if you use Data.ByteString.Char8 (ditto for Data.ByteString.Lazy[.Char8]).