[Haskell-beginners] ghc installation on mac osx 10.4.11(intel), Xcode 2.4?

Thomas Davie tom.davie at gmail.com
Tue Feb 24 02:46:04 EST 2009

On 24 Feb 2009, at 08:21, 7stud wrote:

> Hi,
> I just bought Real World Haskell, and I'm trying to get the
> ghc compiler set up.  The installer for the latest version
> of ghc, 6.10.1, is for Leopard(osx 10.5).  What should
> I install for osx 10.4.11(Tiger)?

Try using the version in MacPorts.

> Also, a question about "Beware of enumerating floating
> point numbers" on p. 11.  The book doesn't explain
> what it means to enumerate floating point numbers
> without a step, so when it says to beware of
> the non-intuitive behavior of:
> ghci> [1.0..1.8]
> how would a reader know what the intuitive behavior is?
> Is the step .1, .01, .001?  Is there a default
> step?  Who knows?

I'd say that if you can't figure out what it should do, that's pretty  
non intuitive, no?


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