From mboxrd@z Thu Jan 1 00:00:00 1970 Path: main.gmane.org!not-for-mail From: Per Bothner Newsgroups: gmane.lisp.guile.user Subject: Re: stupid mail about letrec Date: Mon, 25 Mar 2002 10:33:46 -0800 Sender: guile-user-admin@gnu.org Message-ID: <3C9F6D8A.9050000@bothner.com> References: <20020325.140227.71101513.Sven.Hartrumpf@FernUni-Hagen.de> <87vgbk1vqw.fsf@becket.becket.net> NNTP-Posting-Host: localhost.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit X-Trace: main.gmane.org 1017082638 5314 127.0.0.1 (25 Mar 2002 18:57:18 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Mon, 25 Mar 2002 18:57:18 +0000 (UTC) Cc: Sven Hartrumpf , guile-user@gnu.org Original-Received: from fencepost.gnu.org ([199.232.76.164]) by main.gmane.org with esmtp (Exim 3.33 #1 (Debian)) id 16pZef-0001Nb-00 for ; Mon, 25 Mar 2002 19:57:18 +0100 Original-Received: from localhost ([127.0.0.1] helo=fencepost.gnu.org) by fencepost.gnu.org with esmtp (Exim 3.34 #1 (Debian)) id 16pZYw-0004vh-00; Mon, 25 Mar 2002 13:51:22 -0500 Original-Received: from adsl-216-102-199-253.dsl.snfc21.pacbell.net ([216.102.199.253] helo=bothner.com) by fencepost.gnu.org with esmtp (Exim 3.34 #1 (Debian)) id 16pZGx-0003iW-00 for ; Mon, 25 Mar 2002 13:32:48 -0500 Original-Received: from bothner.com (eureka.bothner.com [192.168.1.9]) by bothner.com (8.11.6/8.11.6) with ESMTP id g2PIeBf19882; Mon, 25 Mar 2002 10:40:11 -0800 User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.9) Gecko/20020313 X-Accept-Language: en-us, en Original-To: "Thomas Bushnell, BSG" Errors-To: guile-user-admin@gnu.org X-BeenThere: guile-user@gnu.org X-Mailman-Version: 2.0.5 Precedence: bulk List-Help: List-Post: List-Subscribe: , List-Id: General Guile related discussions List-Unsubscribe: , List-Archive: Xref: main.gmane.org gmane.lisp.guile.user:57 X-Report-Spam: http://spam.gmane.org/gmane.lisp.guile.user:57 Thomas Bushnell, BSG wrote: > Sven Hartrumpf writes: > >>>So chicken and MIT-scheme don't give you an error for the letrec >>>expression that you quoted before? >> >>No, all return 8 for (letrec ((a 2) (b (* a 4))) b). >>Also mzscheme, bigloo, chez, sisc, scsh, gauche, gambit. >>Only SCM behaves like guile. >>This might make an interesting posting in comp.lang.scheme :-) > > > Yes, but it is an error nontheless. But an error that implementations are not requied to detect. And it is not unreasonable to consider this an implementation extension. -- --Per Bothner per@bothner.com http://www.bothner.com/per/ _______________________________________________ Guile-user mailing list Guile-user@gnu.org http://mail.gnu.org/mailman/listinfo/guile-user