From mboxrd@z Thu Jan  1 00:00:00 1970
Path: news.gmane.org!not-for-mail
From: Dan Gildea <gildea@cs.rochester.edu>
Newsgroups: gmane.lisp.guile.user
Subject: (define* (((f a) b) c) ...)
Date: Sun, 13 Mar 2011 11:49:26 -0400
Message-ID: <20110313154926.GA14534@e15.cs.rochester.edu>
NNTP-Posting-Host: lo.gmane.org
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii; format=flowed
X-Trace: dough.gmane.org 1300066643 1682 80.91.229.12 (14 Mar 2011 01:37:23 GMT)
X-Complaints-To: usenet@dough.gmane.org
NNTP-Posting-Date: Mon, 14 Mar 2011 01:37:23 +0000 (UTC)
To: guile-user@gnu.org
Original-X-From: guile-user-bounces+guile-user=m.gmane.org@gnu.org Mon Mar 14 02:37:18 2011
Return-path: <guile-user-bounces+guile-user=m.gmane.org@gnu.org>
Envelope-to: guile-user@m.gmane.org
Original-Received: from lists.gnu.org ([199.232.76.165])
	by lo.gmane.org with esmtp (Exim 4.69)
	(envelope-from <guile-user-bounces+guile-user=m.gmane.org@gnu.org>)
	id 1Pywik-0006Lv-03
	for guile-user@m.gmane.org; Mon, 14 Mar 2011 02:37:18 +0100
Original-Received: from localhost ([127.0.0.1]:60921 helo=lists.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43)
	id 1Pywij-0003Yt-CT
	for guile-user@m.gmane.org; Sun, 13 Mar 2011 21:37:17 -0400
Original-Received: from [140.186.70.92] (port=33586 helo=eggs.gnu.org)
	by lists.gnu.org with esmtp (Exim 4.43) id 1PynXt-0003nG-VT
	for guile-user@gnu.org; Sun, 13 Mar 2011 11:49:31 -0400
Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <gildea@cs.rochester.edu>) id 1PynXs-0002oD-6L
	for guile-user@gnu.org; Sun, 13 Mar 2011 11:49:29 -0400
Original-Received: from slate.cs.rochester.edu ([192.5.53.101]:50334)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <gildea@cs.rochester.edu>) id 1PynXs-0002nY-3a
	for guile-user@gnu.org; Sun, 13 Mar 2011 11:49:28 -0400
Original-Received: from e15.cs.rochester.edu (e15.cs.rochester.edu [128.151.67.225])
	by slate.cs.rochester.edu (8.13.8/8.13.8) with ESMTP id p2DFnQNa018517
	(version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO)
	for <guile-user@gnu.org>; Sun, 13 Mar 2011 11:49:26 -0400
Original-Received: from e15.cs.rochester.edu (localhost [127.0.0.1])
	by e15.cs.rochester.edu (8.14.4/8.14.4) with ESMTP id p2DFnQqc014606
	for <guile-user@gnu.org>; Sun, 13 Mar 2011 11:49:26 -0400
Original-Received: (from gildea@localhost)
	by e15.cs.rochester.edu (8.14.4/8.14.4/Submit) id p2DFnQX7014604
	for guile-user@gnu.org; Sun, 13 Mar 2011 11:49:26 -0400
Content-Disposition: inline
X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 3)
X-Received-From: 192.5.53.101
X-Mailman-Approved-At: Sun, 13 Mar 2011 21:37:08 -0400
X-BeenThere: guile-user@gnu.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: General Guile related discussions <guile-user.gnu.org>
List-Unsubscribe: <http://lists.gnu.org/mailman/listinfo/guile-user>,
	<mailto:guile-user-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/guile-user>
List-Post: <mailto:guile-user@gnu.org>
List-Help: <mailto:guile-user-request@gnu.org?subject=help>
List-Subscribe: <http://lists.gnu.org/mailman/listinfo/guile-user>,
	<mailto:guile-user-request@gnu.org?subject=subscribe>
Original-Sender: guile-user-bounces+guile-user=m.gmane.org@gnu.org
Errors-To: guile-user-bounces+guile-user=m.gmane.org@gnu.org
Xref: news.gmane.org gmane.lisp.guile.user:8536
Archived-At: <http://permalink.gmane.org/gmane.lisp.guile.user/8536>

In guile 2.0, I need to use "define*" to define second-order functions
such as:

(define* ((f a) b) 
   ...)

But define* doesn't work for higher-order functions, or for more
complicated definitions of second-order functions, such as:

(define* (((f a) b) c) 
   ...)

(define* ((f #:optional a) b) 
   ...)

These forms are very common in the scmutils mechanics functions.
Is there any way around this, other than using lambda, as in:

(define* ((f a) b) 
   (lambda (c) 
     ...))

(define* (f #:optional a) 
   (lambda (b) 
     ...))

?