On 1/3/06, Daniel Carrera <[EMAIL PROTECTED]> wrote: > Neil Mitchell wrote: > > All Haskell functions are lazy, hence there is no need to "write a > > lazy version" of your print_list function. I think the function you > > probably want is: > > > > putStr (unlines xs) > > Hhmm... that does work, and I'm a bit surprised that it does. I guess > I'm still stuck in the eager computation mindset. I would expect putStr > to have to wait for the (unlines xs) to be finished before doing any > printing, but it doesn't. > > Some day I'll get the hang of this lazy evaluation thing. :)
It does, in a sense, but since unlines is lazy (just like *everything else* in Haskell) it won't actually *do* anything until putStr demands an element from the result. /S -- Sebastian Sylvan +46(0)736-818655 UIN: 44640862 _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
