Re: [Haskell-cafe] mixing map and mapM ?

On 6 May 2010 15:01, wrote:

I was doing the following:

do status <- mapM PF.getFileStatus filenames   let times = map PF.modificationTime status   let sorted = sortBy (\(_, t1) (_,t2) -> compare t1 t2) (zip filenames times)

times <- mapM (liftM PF.modificationTime . PF.getFileStatus) filenames However, I'd be tempted to leave it as is (and hope/assume that fusion does its magic). -- Ivan Lazar Miljenovic Ivan.Miljenovic@gmail.com IvanMiljenovic.wordpress.com