> Sun, 04 Feb 2001 17:15:16 +1100, Manuel M. T. Chakravarty
> <[EMAIL PROTECTED]> pisze:
>
> > I am just wondering whether we would want to add the
> > following to `MarshalError':
>
> Maybe throwIf should be changed to failIf? The same function would
> work for both IO and Maybe.
I don't see that. Presumably you mean overloading failIf with the Monad
class, but `fail' takes a String and in the IO monad we want to raise a
real IOError, not just a UserError.
Cheers,
Simon
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