From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Elena Newsgroups: gmane.emacs.help Subject: Re: What is the best way to navigate #ifdef and #endif in C program Date: Thu, 5 Aug 2010 12:04:23 -0700 (PDT) Organization: http://groups.google.com Message-ID: <57db02c5-32db-4483-863e-a9177e4e6003@w30g2000yqw.googlegroups.com> References: <53f62f81-fb10-4fb6-87ce-0eb5609d12f5@h17g2000pri.googlegroups.com> <87y6cmsmf1.fsf@kuiper.lan.informatimago.com> NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Trace: dough.gmane.org 1291856294 30201 80.91.229.12 (9 Dec 2010 00:58:14 GMT) X-Complaints-To: usenet@dough.gmane.org NNTP-Posting-Date: Thu, 9 Dec 2010 00:58:14 +0000 (UTC) To: help-gnu-emacs@gnu.org Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Thu Dec 09 01:58:09 2010 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([199.232.76.165]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1PQUpl-0000eq-3F for geh-help-gnu-emacs@m.gmane.org; Thu, 09 Dec 2010 01:58:09 +0100 Original-Received: from localhost ([127.0.0.1]:39324 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PQUpk-00047i-Cj for geh-help-gnu-emacs@m.gmane.org; Wed, 08 Dec 2010 19:58:08 -0500 Original-Path: usenet.stanford.edu!postnews.google.com!w30g2000yqw.googlegroups.com!not-for-mail Original-Newsgroups: gnu.emacs.help,comp.lang.lisp,comp.lang.scheme Original-Lines: 16 Original-NNTP-Posting-Host: 94.36.96.236 Original-X-Trace: posting.google.com 1281035063 4913 127.0.0.1 (5 Aug 2010 19:04:23 GMT) Original-X-Complaints-To: groups-abuse@google.com Original-NNTP-Posting-Date: Thu, 5 Aug 2010 19:04:23 +0000 (UTC) Complaints-To: groups-abuse@google.com Injection-Info: w30g2000yqw.googlegroups.com; posting-host=94.36.96.236; posting-account=AFCLjAoAAABJAOf_HjgEEEi3ty-lG5m2 User-Agent: G2/1.0 X-HTTP-UserAgent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.0.19) Gecko/2010072023 Iceweasel/3.0.6 (Debian-3.0.6-3),gzip(gfe) Original-Xref: usenet.stanford.edu gnu.emacs.help:180430 comp.lang.lisp:290960 comp.lang.scheme:87282 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:76337 Archived-At: On 4 Ago, 17:09, Peter Keller wrote: > Specifically:http://letoverlambda.com/index.cl/guest/chap5.html#sec_4 > > Would show you how to write a macro such that it adds Scheme's tail call > optimized "named let" into Common Lisp. =A0This goes beyond the concept > of syntactic sugar and enters the domain of pure code transformation. Indeed, code transformation is what sets CL's macros apart. However, TCO is much more than that. Read here: http://stackoverflow.com/questions/2181852/tail-call-elimination-in-clojure However, TCO could also just not be possible in CL because of its design: http://www.cliki.net/Tail%20Recursion