Hi David, I was referring to the `f' in the `runAuto' function, not the `liftAu' function.
-db On Wed, Oct 19, 2011 at 8:53 PM, David Barbour <dmbarb...@gmail.com> wrote: > On Wed, Oct 19, 2011 at 8:07 PM, Captain Freako <capn.fre...@gmail.com> > wrote: >> >> One more question on the `runAuto' code, John: >> >> If I understand the code correctly, `f' is an arrow. Yet, we're using >> it on the right side of `=' in a simple assignment. How are we getting >> away with that? >> >> Thanks, >> -db >> >>> liftAu' f s0 = proc x -> do >>> rec (y,s') <- arr f -< (x,s) >>> s <- delay s0 -< s' >>> returnA -< (y,s) > > The value `f` is a function - a parameter of liftAu'. While all functions > are arrows (Arrow is defined on (->)), the value `arr f` is an arrow of the > automaton model. The `=` symbol is used to define the liftAu function. What > are you imagining? > > _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
