[Haskell-cafe] class Bytestringable or ToBytestring

[Silvio Frischknecht]

i recently found the convertible package

http://hackage.haskell.org/packages/archive/convertible/1.0.11.1/doc/html/Data-
Convertible-Base.html

convert :: Convertible a b => a -> b

I've only used it once but it looks good to me.

sure the type checker does not guartantee that you get a ByteString back but 
if you only use your own types where you write all the instances yourself you 
should be safe.

silvio