I don't have a good answer to that, and I unable to reliably solve
this type of problem, which is one reason I am posting around on
haskell cafe hoping to accumulate wisdom.
Here for instance I think I did
t = last . take (10^6) $ repeat $ S.empty
which doesn't blow up, and by process of elimination figured the
process must be in iterate.
I then looked at iterate by writing myiterate (could have also copied
from hackage prelude) and thought about it until the answer (well, an
answer, maybe not the best one) came
myiterate f x = x : myiterate f (f x)
In general, I feel like I don't do very well solving these types of problems.
Am 17. Juli 2009 08:47 schrieb Matthias Görgens
Thomas, if you did no know, where to look for `lazy-memory-hole', say in your first example, how would you go about solving that puzzle systematically with a Profiler (or other tools)?