[nhc-bugs] Exporting class methods

Simon Marlow simonmar at microsoft.com
Tue Apr 19 07:27:15 EDT 2005


On 19 April 2005 12:15, Malcolm Wallace wrote:

>>>> Control.Monad.Reader (Reader, runReader, ask, local)
>>>> Control.Monad.Error (instance MonadPlus IO)
>> 
>> These have H98 implementations, as far as I'm aware.
> 
> The mtl package requires multi-param classes and functional
> dependencies.  Where are the H'98 versions?

oops, you're right.  But instance MonadPlus IO is ok.

Cheers,
	Simon


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