On Sunday 03 April 2011 16:04:22, Patrick Browne wrote: > Hi, > Attached are two programs that represent one-way and two-way traffic on > a road. I can get the programs to produce reasonable results that match > our intuitive ideas of roads. > However, I have 2 question about the programs: > > 1)I cannot get the result suggested by the author that t1 should give > true in prog1 and false in prog2.
Only took a short look, but that'd probably be because it's wrong, t1 should give True for both. You have a road r from a to b and a car c at a. Then after you move the car along the road, it will be located at b, regardless of whether it's a one- way road or traffic may flow in both directions. _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
