On Sat, Oct 10, 2009 at 11:11:24PM +0200, Daniel Fischer wrote: > To: [email protected] > From: Daniel Fischer <[email protected]> > Date: Sat, 10 Oct 2009 23:11:24 +0200 > Subject: Re: [Haskell-cafe] How do I get this done in constant mem? > > Am Samstag 10 Oktober 2009 22:14:38 schrieb [email protected]: > > On Sat, Oct 10, 2009 at 09:33:52AM -0700, Thomas Hartman wrote: > > > To: Luke Palmer <[email protected]> > > > Cc: [email protected], [email protected] > > > From: Thomas Hartman <[email protected]> > > > Date: Sat, 10 Oct 2009 09:33:52 -0700 > > > Subject: Re: [Haskell-cafe] How do I get this done in constant mem? > > > > > > > Yes, you should not do this in IO. That requires the entire > > > > computation to finish before the result can be used. > > > > > > Not really the entire computation though... whnf, no? > > > > In that example, yes. But readFile takes the entire file into a > > strict String before it gives you the first Char, right? (Sorry again > > for my misleading code "simplification".) > > No, readFile reads the file lazily.
hm? oh, you are right, now that i fixed all the other problems in my code readFile isn't a problem any more either... (-: (but then how does it know when to close the handle? gotta go read the code i guess.) thanks! -m _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
