From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Stefan Monnier Newsgroups: gmane.emacs.bugs Subject: bug#17623: 24.4.50; incorrect example for `apply-partially' in (elisp) `Calling Functions' Date: Sun, 29 Jun 2014 17:46:28 -0400 Message-ID: References: <9fd43ff1-d6cf-4ac6-b173-2fd634f45a98@default> <871tua2o12.fsf@web.de> <1ac7ebe5-6b43-4367-beb8-df7d9f5b6750@default> <87tx75ni8k.fsf@web.de> <8338ep6kk1.fsf@gnu.org> <87pphsor8h.fsf@web.de> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1404078449 20237 80.91.229.3 (29 Jun 2014 21:47:29 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Sun, 29 Jun 2014 21:47:29 +0000 (UTC) Cc: 17623@debbugs.gnu.org To: Michael Heerdegen Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Sun Jun 29 23:47:22 2014 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1X1MwU-0007nP-3G for geb-bug-gnu-emacs@m.gmane.org; Sun, 29 Jun 2014 23:47:22 +0200 Original-Received: from localhost ([::1]:59219 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X1MwT-00010i-I2 for geb-bug-gnu-emacs@m.gmane.org; Sun, 29 Jun 2014 17:47:21 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:40644) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X1MwI-0000yV-C3 for bug-gnu-emacs@gnu.org; Sun, 29 Jun 2014 17:47:17 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1X1MwA-00070a-LG for bug-gnu-emacs@gnu.org; Sun, 29 Jun 2014 17:47:10 -0400 Original-Received: from debbugs.gnu.org ([140.186.70.43]:45890) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1X1MwA-00070V-IE for bug-gnu-emacs@gnu.org; Sun, 29 Jun 2014 17:47:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.80) (envelope-from ) id 1X1MwA-00039N-41 for bug-gnu-emacs@gnu.org; Sun, 29 Jun 2014 17:47:02 -0400 X-Loop: help-debbugs@gnu.org Resent-From: Stefan Monnier Original-Sender: "Debbugs-submit" Resent-CC: bug-gnu-emacs@gnu.org Resent-Date: Sun, 29 Jun 2014 21:47:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: followup 17623 X-GNU-PR-Package: emacs X-GNU-PR-Keywords: Original-Received: via spool by 17623-submit@debbugs.gnu.org id=B17623.140407839812072 (code B ref 17623); Sun, 29 Jun 2014 21:47:02 +0000 Original-Received: (at 17623) by debbugs.gnu.org; 29 Jun 2014 21:46:38 +0000 Original-Received: from localhost ([127.0.0.1]:37040 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1X1Mvl-00038d-64 for submit@debbugs.gnu.org; Sun, 29 Jun 2014 17:46:37 -0400 Original-Received: from ironport2-out.teksavvy.com ([206.248.154.181]:43773) by debbugs.gnu.org with esmtp (Exim 4.80) (envelope-from ) id 1X1Mvi-00038I-8k for 17623@debbugs.gnu.org; Sun, 29 Jun 2014 17:46:34 -0400 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: ArYGAIDvNVNLd+D9/2dsb2JhbABZgwaDSr0vgw6BFxd0giUBAQEBAgFWIwULCzQSFBgNJIgECNIZF456B4Q4BKkZgWqBcYFbIQ X-IPAS-Result: ArYGAIDvNVNLd+D9/2dsb2JhbABZgwaDSr0vgw6BFxd0giUBAQEBAgFWIwULCzQSFBgNJIgECNIZF456B4Q4BKkZgWqBcYFbIQ X-IronPort-AV: E=Sophos;i="4.97,753,1389762000"; d="scan'208";a="69915402" Original-Received: from 75-119-224-253.dsl.teksavvy.com (HELO ceviche.home) ([75.119.224.253]) by ironport2-out.teksavvy.com with ESMTP/TLS/ADH-AES256-SHA; 29 Jun 2014 17:46:28 -0400 Original-Received: by ceviche.home (Postfix, from userid 20848) id 08CEE66138; Sun, 29 Jun 2014 17:46:28 -0400 (EDT) In-Reply-To: <87pphsor8h.fsf@web.de> (Michael Heerdegen's message of "Sat, 28 Jun 2014 19:53:34 +0200") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.4.50 (gnu/linux) X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.15 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x X-Received-From: 140.186.70.43 X-BeenThere: bug-gnu-emacs@gnu.org List-Id: "Bug reports for GNU Emacs, the Swiss army knife of text editors" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Original-Sender: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.bugs:90977 Archived-At: > There's nothing wrong per see in the current text, but it sounds as if > `apply-partially` would somehow analyze the argument list of its first > argument. But it's semantic is very simple. > Say that > (apply-partially f arg_1 ... arg_n) > is equivalent to > (lambda (&rest args) (apply f arg_1 ... arg_n args)) This equivalence is not true either. E.g. (prog1 (apply-partially #'message format) (setq format "hello")) BTW, `apply-partially' is mostly a crutch to have "simple closures" in a dynamically scoped setting. In code that uses lexical-binding, it's generally better to use a straight closure. Stefan