[Haskell-cafe] Re: Functional version of this OO snippet

[Duncan Coutts]

On Fri, 2008-12-05 at 16:50 +0100, Thomas Davie wrote:

> Sure, and he could then use a fold instead of a map.  Reading files is  
> problematic, but as long as you're only doing it once (the most common  
> situation) is entirely fine wrapped up in an unsafePerformIO.

Nooooo!

Please don't go telling people it's entirely fine to use unsafePerformIO
like that (or at all really).

Duncan