In fact, I am after all going to get unsafe because what Daniel Fischer wrote above worked perfectly until I wanted to add annotations to ftConf (the "&= summary" bit in http://community.haskell.org/~ndm/cmdargs/). The only way I can go around the errors I get is precisely unsafe, so ah, you only live once ;)

On 14 January 2011 21:36, Brent Yorgey <byorgey@seas.upenn.edu> wrote:

On Fri, Jan 14, 2011 at 08:14:38PM +0100, Kamil Stachowski wrote:
> @Daniel Fischer
> Thanks for the offer, it's very kind of you, but I'm afraid I'll just need
> to try to understand monads for the hundredth time :/
>
> @Brent Yorgey
> Ah, thank you! But that would be the unsafe way, right? I think I should try
> to do it the "right" way, but I'm sure this'll come in handy when I get
> lost.

Yes, I was mostly linking to that package just because it is funny,
it's probably not what you really want to do. =)

-Brent

>
>
> On 14 January 2011 20:00, Brent Yorgey <byorgey@seas.upenn.edu> wrote:
>
> > On Fri, Jan 14, 2011 at 07:41:07PM +0100, Daniel Fischer wrote:
> > >
> > > b) if you absolutely have to have ftConf as a top-level name and it is
> > safe
> > > here:
> > >
> > > import System.IO.Unsafe (unsafePerformIO)
> > >
> > > {-# NOINLINE ftConf #-}
> > > ftConf :: FuzzyTimeConf
> > > ftConf = unsafePerformIO $ do
> > > now <- getClockTime
> > > return $ FuzzyTimeConf { time = convert now }
> >
> > There's already a Hackage package to accomplish this:
> >
> > http://hackage.haskell.org/package/acme-now
> >
> > =)
> >
> > -Brent
> >
> > _______________________________________________
> > Beginners mailing list
> > Beginners@haskell.org
> > http://www.haskell.org/mailman/listinfo/beginners
> >

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