From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Kevin Ryde Newsgroups: gmane.lisp.guile.devel Subject: Re: What are the arguments in favor of delay/force in eval.c? Date: Thu, 15 Dec 2005 08:10:49 +1100 Message-ID: <871x0f75ba.fsf@zip.com.au> References: <87hd9mgc7v.fsf@trouble.defaultvalue.org> <87acfcfvbr.fsf@zip.com.au> <87y82wo78b.fsf@trouble.defaultvalue.org> <8764q0fn2f.fsf@zip.com.au> <874q5kmmup.fsf@trouble.defaultvalue.org> <873bl13j6i.fsf@zip.com.au> <87oe3pwpeu.fsf@trouble.defaultvalue.org> NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: sea.gmane.org 1134601305 1039 80.91.229.2 (14 Dec 2005 23:01:45 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Wed, 14 Dec 2005 23:01:45 +0000 (UTC) Cc: guile-devel@gnu.org Original-X-From: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Thu Dec 15 00:01:35 2005 Return-path: Original-Received: from lists.gnu.org ([199.232.76.165]) by ciao.gmane.org with esmtp (Exim 4.43) id 1EmfaZ-00044P-M1 for guile-devel@m.gmane.org; Wed, 14 Dec 2005 23:59:11 +0100 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1EmfbB-0005ZB-LL for guile-devel@m.gmane.org; Wed, 14 Dec 2005 17:59:49 -0500 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Emduh-0005Vq-4A for guile-devel@gnu.org; Wed, 14 Dec 2005 16:11:51 -0500 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Emduf-0005VO-EH for guile-devel@gnu.org; Wed, 14 Dec 2005 16:11:50 -0500 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Emduf-0005VB-7I for guile-devel@gnu.org; Wed, 14 Dec 2005 16:11:49 -0500 Original-Received: from [61.8.0.84] (helo=mailout1.pacific.net.au) by monty-python.gnu.org with esmtp (Exim 4.34) id 1Emdwm-0000uF-Sa for guile-devel@gnu.org; Wed, 14 Dec 2005 16:14:01 -0500 Original-Received: from mailproxy2.pacific.net.au (mailproxy2.pacific.net.au [61.8.0.87]) by mailout1.pacific.net.au (8.13.4/8.13.4/Debian-3) with ESMTP id jBELB4pb016196; Thu, 15 Dec 2005 08:11:04 +1100 Original-Received: from localhost (ppp2CDF.dyn.pacific.net.au [61.8.44.223]) by mailproxy2.pacific.net.au (8.13.4/8.13.4/Debian-3) with ESMTP id jBELB32O006838; Thu, 15 Dec 2005 08:11:04 +1100 Original-Received: from gg by localhost with local (Exim 3.36 #1 (Debian)) id 1Emdti-0000eL-00; Thu, 15 Dec 2005 08:10:50 +1100 Original-To: Rob Browning Mail-Copies-To: never In-Reply-To: <87oe3pwpeu.fsf@trouble.defaultvalue.org> (Rob Browning's message of "Fri, 09 Dec 2005 20:23:53 -0800") User-Agent: Gnus/5.110004 (No Gnus v0.4) Emacs/21.4 (gnu/linux) X-BeenThere: guile-devel@gnu.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: "Developers list for Guile, the GNU extensibility library" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Original-Sender: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Errors-To: guile-devel-bounces+guile-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.lisp.guile.devel:5517 Archived-At: Rob Browning writes: > > You may have already noticed this, but I think the semantics of > SRFI-45 force/delay are supposed to be a strict superset of R5RS > force/delay, so in theory we might be able to have just one type of > promise. As far as I can tell there's two types of promises, one generated by `delay' the other by `lazy', so if you only use delay+force you get r5rs, if you use lazy+force you get the new style. _______________________________________________ Guile-devel mailing list Guile-devel@gnu.org http://lists.gnu.org/mailman/listinfo/guile-devel