Subject: Re: data hygiene [Re: Why is Scheme not a Lisp?] From: Erik Naggum <erik@naggum.net> Date: Thu, 21 Mar 2002 22:39:57 GMT Newsgroups: comp.lang.lisp Message-ID: <3225739210766179@naggum.net> * Paul Dietz | The point you are missing is that the car (and caar) you load for the | alist are not for the current cell, but for previous cells. There's no | dependency between this iteration's cdr, car, and caar. You can delay | the car and caar because they're not on the critical path. Who do you think you are kidding? | In contrast, there *is* a dependency between the cdr and the cddr for the | plist, and this dependency cannot be gotten rid of. But that is just like the dependency between the car and the caar! Please work this out for plists, too. You _will_ be suprrised. /// -- In a fight against something, the fight has value, victory has none. In a fight for something, the fight is a loss, victory merely relief.