Xref: utzoo comp.lang.lisp:2009 comp.lang.scheme:768 Path: utzoo!utgpu!watmath!att!pacbell!ames!mailrus!csd4.milw.wisc.edu!cs.utexas.edu!uunet!mcvax!ukc!castle!aiai!jeff From: jeff@aiai.uucp (Jeff Dalton) Newsgroups: comp.lang.lisp,comp.lang.scheme Subject: Re: "Scheme has data types and Lisp doesn't." Keywords: Where does this idea come from? Message-ID: <690@skye.ed.ac.uk> Date: 7 Aug 89 11:00:26 GMT References: <9085@thorin.cs.unc.edu> Sender: news@aiai.ed.ac.uk Reply-To: jeff@aiai.uucp (Jeff Dalton) Organization: AIAI, University of Edinburgh, Scotland Lines: 13 In article <9085@thorin.cs.unc.edu> bts@evergreen.cs.unc.edu (Bruce Smith) writes: >I heard that Scheme was to be preferred because compiled Scheme >executes much faster than compiled Common Lisp. The reason for >that difference? Because, of course, "Scheme has data types >and Lisp doesn't." Some people out there still think "everything in Lisp is a list". Maybe that's it. Of course, it's not true that everything _is_ a list, in Common Lisp or Scheme. Jeff Dalton, JANET: J.Dalton@uk.ac.ed AI Applications Institute, ARPA: J.Dalton%uk.ac.ed@nsfnet-relay.ac.uk Edinburgh University. UUCP: ...!ukc!ed.ac.uk!J.Dalton