From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: "Drew Adams" Newsgroups: gmane.emacs.help Subject: funcallable-p? Date: Sat, 25 Aug 2007 17:40:51 -0700 Message-ID: NNTP-Posting-Host: lo.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Trace: sea.gmane.org 1188088947 26485 80.91.229.12 (26 Aug 2007 00:42:27 GMT) X-Complaints-To: usenet@sea.gmane.org NNTP-Posting-Date: Sun, 26 Aug 2007 00:42:27 +0000 (UTC) To: "Help-Gnu-Emacs" Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Sun Aug 26 02:42:24 2007 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 4.50) id 1IP6Cu-00054H-8q for geh-help-gnu-emacs@m.gmane.org; Sun, 26 Aug 2007 02:42:24 +0200 Original-Received: from localhost ([127.0.0.1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IP6Ct-0008N7-Lo for geh-help-gnu-emacs@m.gmane.org; Sat, 25 Aug 2007 20:42:23 -0400 Original-Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1IP6Cf-0008N2-Mg for help-gnu-emacs@gnu.org; Sat, 25 Aug 2007 20:42:09 -0400 Original-Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1IP6Ce-0008Mq-08 for help-gnu-emacs@gnu.org; Sat, 25 Aug 2007 20:42:09 -0400 Original-Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1IP6Cd-0008Mn-TN for help-gnu-emacs@gnu.org; Sat, 25 Aug 2007 20:42:07 -0400 Original-Received: from rgminet01.oracle.com ([148.87.113.118]) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.60) (envelope-from ) id 1IP6Cd-0001vH-Ga for help-gnu-emacs@gnu.org; Sat, 25 Aug 2007 20:42:07 -0400 Original-Received: from agmgw1.us.oracle.com (agmgw1.us.oracle.com [152.68.180.212]) by rgminet01.oracle.com (Switch-3.2.4/Switch-3.1.6) with ESMTP id l7Q0g4t4027068 for ; Sat, 25 Aug 2007 18:42:05 -0600 Original-Received: from acsmt351.oracle.com (acsmt351.oracle.com [141.146.40.151]) by agmgw1.us.oracle.com (Switch-3.2.0/Switch-3.2.0) with ESMTP id l7PItwVG032752 for ; Sat, 25 Aug 2007 18:42:03 -0600 Original-Received: from dhcp-amer-whq-csvpn-gw3-141-144-80-132.vpn.oracle.com by acsmt351.oracle.com with ESMTP id 3159245891188088842; Sat, 25 Aug 2007 17:40:42 -0700 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.6604 (9.0.2911.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 X-Brightmail-Tracker: AAAAAQAAAAI= X-Brightmail-Tracker: AAAAAQAAAAI= X-Whitelist: TRUE X-Whitelist: TRUE X-Detected-Kernel: Linux 2.4-2.6 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:46843 Archived-At: What's a good way to test the first argument to `funcall' or `apply', to ensure that it is appropriate? `functionp' won't do it, because it allows special forms and macros. I can imagine doing a case analyis on the function-cell value, but what's a concise and elegant idiom for this test? I don't see one used in the Lisp source files; I guess each occurrence there more or less knows what argument to expect.