Hi, Am Dienstag, den 28.08.2012, 18:16 -0400 schrieb Carter Schonwald: > On Tuesday, August 28, 2012, Yves Parès wrote: > Monad? Simple strictness anotation is enough in that case: > > upd_noupd n = > let l = myenum' 0 n > h = head l > in h `seq` last l + h
darn, I though I changed my examples before posting to:
upd_noupd n =
let l = myenum' 0 n
in last l + length l
("head" was a bad example because actually due to strictness analysis
and worker/wrapper transformation, GHC would yield good code even
without "`seq`").
In this case (which is actually the benchmarked case), reordering or
strictness annotations do not help.
Greetings and sorry for the confusion,
Joachim
--
Dipl.-Math. Dipl.-Inform. Joachim Breitner
Wissenschaftlicher Mitarbeiter
http://pp.info.uni-karlsruhe.de/~breitner
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