Frank Buss <[EMAIL PROTECTED]> wrote in article <[EMAIL PROTECTED]> in gmane.comp.lang.haskell.cafe: > Is it possible to write a function like this: > > zipn n list_1 list_2 list_3 ... list_n > > which implements zip3 for n=3, zip4 for n=4 etc.? Looks like variable number > of arguments are possible, like printf shows, so a general zipn should be > possible, too. If it is possible, why there are functions like zip5 and not > just zipn?
Check out: Fridlender, Daniel, and Mia Indrika. 2000. Do we need dependent types? Journal of Functional Programming 10(4):409-415. http://www.math.chalmers.se/~indrika/jfp.ps.gz McBride, Conor. 2002. Faking it: Simulating dependent types in Haskell. Journal of Functional Programming 12(4-5): 375-392. -- Edit this signature at http://www.digitas.harvard.edu/cgi-bin/ken/sig Remember Hirosima 1945-08-06, Nagasaki 1945-08-09. http://petitions.pm.gov.uk/Free-Vanunu/ http://www.vanunu.org/ _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
