On Mon, 13 Nov 2006, Donald Bruce Stewart wrote:
I would personally rather see repeatM and repeatM_ like the replicateM/replicateM_ pair already in Control.Monad.
I implement them like this: repeatM = sequence . repeat repeatM_ = sequence_ . repeat
Google CodeSearch tells me it's the way replicateM was implemented too: http://www.google.com/codesearch?hl=en&lr=&q=replicateM+file%3A%5C.hs% 24&btnG=Search
Btw, i hope it is ok to give my opinion on this. Im asking since im not a library developer or anything just a normal programmer.
On this topic, we can go back to: http://www.mail-archive.com/cvs-all@haskell.org/msg26511.html
However, it was pointed out that repeatM is next to useless, and it is traditional to use 'forever' for repeatM_ (see for example "Tackling the Awkward Squad", and http://haskell.org/haskellwiki/Roll_your_own_IRC_bot
That being said, repeatM_ isn't too bad, should people prefer it.
I prefer repeatM_ in analogy to List.repeat.