[Haskell-beginners] Error Loading Stdm.lhs in Haskell platform 2012

[Iwan Awaludin]

OK, I changed the line code as suggested. It is successfully compiled.
But it still has one warning:
stdm.lhs:38:10:
    Warning: In the use of `catch'
             (imported from Prelude, but defined in System.IO.Error):
             Deprecated: "Please use the new exceptions variant,
Control.Exception.catch"

I don't know the effect but as long as I can use it for my course, I don't
mind. Thank you for your help.

On Tue, Sep 4, 2012 at 1:46 PM, Eugene Perederey <eugene.perederey at gmail.com
> wrote:

> What version of ghc are you using?
> In recent versions ghc doesn't support pattern matching of expressions
> like (n+1).
> You can rewrite that factorial function as
>  factorial n = n * factorial (n-1)
> instead.
>
> best,
> Eugene
>
> On 3 September 2012 22:08, Iwan Awaludin <awaludin at gmail.com> wrote:
> > Dear Sir/Madam
> > I Installed Haskell Platform 2012.2.0.0 for Windows and try to load
> Stdm.lhs
> > which is downloaded from
> > http://www.dcs.gla.ac.uk/~jtod/discrete-mathematics/Stdm.lhs
> > I have this error:
> > stdm.lhs:1160:14: Parse error in pattern: n + 1
> > Failed, modules loaded: none.
> >
> > Is there anything I should do to make it right?
> > Thank you.
> >
> > --
> > Iwan Awaludin
> >
> >
> >
> >
> > _______________________________________________
> > Beginners mailing list
> > Beginners at haskell.org
> > http://www.haskell.org/mailman/listinfo/beginners
> >
>



-- 
Iwan Awaludin
http://www.schoolofuniverse.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.haskell.org/pipermail/beginners/attachments/20120906/9c246d86/attachment.htm>