[Haskell-cafe] Using the ContT monads for early exits of IO ?

Lennart Augustsson lennart at augustsson.net
Thu Jun 10 14:22:09 EDT 2010


I would not use the continuation monad just for early exit.  Sounds
like the error monad to me.

2010/6/10 Günther Schmidt <gue.schmidt at web.de>:
> Hi everyone,
>
> I'm about to write a rather lengthy piece of IO code. Depending on the
> results of some of the IO actions I'd like the computation to stop right
> there and then.
>
> Now I know in general how to write this but I'm wondering if this is one of
> those occasions where I should make use of the Cont monad to make an early
> exit.
>
> Günther
>
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