Subject: Re: NEED HELP PLEASE From: Erik Naggum <email@example.com> Date: 1998/06/28 Newsgroups: comp.lang.lisp Message-ID: <firstname.lastname@example.org> * Stig Hemmer | Keep the boxes and their car pointers in the same places as the first | diagram and just move the cdr pointers. in the interest of being the least _directly_ helpful on this homework assignment, isn't he better off keeping the CDRs and swapping the CARs? | PS: Are they called "first and rest pointers" these days? never seen these function names used to name "pointers". CAR and CDR are still the low-level implementation details of a CONS, while FIRST and REST refer to a particular view of the CONS, namely when used as a list. #:Erik -- http://www.naggum.no/spam.html is about my spam protection scheme and how to guarantee that you reach me. in brief: if you reply to a news article of mine, be sure to include an In-Reply-To or References header with the message-ID of that message in it. otherwise, you need to read that page.