Hello Alexander, Your best bet is to make a Haskell functions which gives access to the head and tail of a list (the head should be converted into a C-friendly form) and then export them as functions which are callable from C. http://www.haskell.org/haskellwiki/GHC/Using_the_FFI#Calling_Haskell_from_C Edward Excerpts from Alexander.Vladislav.Popov's message of Mon Dec 05 03:08:59 -0500 2011:
Hi, Haskellers.
Advise me please, how I can export lazy and potentially infinite list of string from Haskell program. I think I must call it iteratively: the first call initiate some structure and other calls iterate over it, something like pair of function `find_first' and `find_next'. And how to marshall this structure between programs. Or think in a wrong way? Does any example exist how I can make it?
Alexander Popov