[Haskell-cafe] IO (Either a Error) question

Limestraël limestrael at gmail.com
Fri May 7 17:40:37 EDT 2010


Yes, I wonder why mtl is not updated so as to remove this restriction.


2010/5/1 John Millikin <jmillikin at gmail.com>

> You might want to make a local version of ErrorT in your library, to
> avoid the silly 'Error' class restriction. This is pretty easy; just
> copy it from the 'transformers' or 'mtl' package.
>
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