A wee bit off topic, but I'm sure it's an acceptable detour.

I just wanted to say that I appreciate both this sort of post and the
consistent responses it solicits. I have yet to need my Haskell to
perform well, but I'm sure that day will come. I like to follow these
questions and hopefully be better prepared for those harsher times :).

So thanks for the questions and the answers.

On 2/10/07, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
You're right, 'fix' is *not* a fix for non-termination, this is better
fixed in the type system (with the right fixed points or you're in a fix) ;)

Fixed regards,
apfelmus

Lennart Augustsson wrote:
> This is actually a pretty good algorithm.  And also a rather subtle one
> when it comes to termination. :)
>
>> Of course, the best optimization is a better algorithm. In case this is
>> what you're after, have a look at
>>
>>    Colin Runciman, Lazy Wheel Sieves and Spirals of Primes
>>    http://citeseer.ist.psu.edu/runciman97lazy.html

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