Hi, while experimenting with the code, I noticed that toList is not set up for list fusion. I’m using IntSet.toList (and IntMap.toList) a lot inside list comprehensions, so I think I’d benefit from it. I ran a quick experiment (benchmarking (length . filter odd . DS.toList) applied to fromList [0,2..2^24], and progression gave me the attached graph – looks worth-while :-) (Yes, I know, the benchmark is very much tailored to show the best possible effect :-)) As it is really easy and straight forward, I’ll add such a rule for IntSet and for the other modules in my pull request. Greetings, Joachim -- Joachim "nomeata" Breitner mail@joachim-breitner.de | nomeata@debian.org | GPG: 0x4743206C xmpp: nomeata@joachim-breitner.de | http://www.joachim-breitner.de/
