[Haskell-cafe] better error expression in IO function

[Derek Elkins]

On Wed, 2007-07-11 at 17:10 -0700, Jeremy Shaw wrote:
> At Thu, 12 Jul 2007 09:18:14 +1000,
> Thomas Conway wrote:
> > 
> > On 7/12/07, Andrew Coppin <andrewcoppin at btinternet.com> wrote:
> > > It's fairly common to use the Either type for this. By convention,
> > > "Right" means "correct", and by elimination "Left" means an error...
> > 
> > Presumably, this is because the world is dominated by dull,
> > conventional, right handed people. :-)
> 
> Personally, I blame it on the Romans. 

Personally, I blame it on biology.