From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!.POSTED!not-for-mail From: Mark H Weaver Newsgroups: gmane.lisp.guile.bugs Subject: bug#26162: time-duration screws up negative durations Date: Sun, 21 Oct 2018 19:31:32 -0400 Message-ID: <87y3aqyizv.fsf@netris.org> References: <20170318221742.GI6518@fysh.org> NNTP-Posting-Host: blaine.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: blaine.gmane.org 1540165347 8158 195.159.176.226 (21 Oct 2018 23:42:27 GMT) X-Complaints-To: usenet@blaine.gmane.org NNTP-Posting-Date: Sun, 21 Oct 2018 23:42:27 +0000 (UTC) User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.1 (gnu/linux) Cc: 26162-done@debbugs.gnu.org To: Zefram Original-X-From: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Mon Oct 22 01:42:22 2018 Return-path: Envelope-to: guile-bugs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by blaine.gmane.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gENMT-00022A-VL for guile-bugs@m.gmane.org; Mon, 22 Oct 2018 01:42:22 +0200 Original-Received: from localhost ([::1]:60616 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gENOa-0005on-Jc for guile-bugs@m.gmane.org; Sun, 21 Oct 2018 19:44:32 -0400 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:46183) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gENNv-0004hl-N5 for bug-guile@gnu.org; Sun, 21 Oct 2018 19:43:56 -0400 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gENCV-0006BN-27 for bug-guile@gnu.org; Sun, 21 Oct 2018 19:32:06 -0400 Original-Received: from debbugs.gnu.org ([208.118.235.43]:58846) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gENCU-0006A4-SC for bug-guile@gnu.org; Sun, 21 Oct 2018 19:32:02 -0400 Original-Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2) (envelope-from ) id 1gENCU-0007yG-Ky for bug-guile@gnu.org; Sun, 21 Oct 2018 19:32:02 -0400 Resent-From: Mark H Weaver Original-Sender: "Debbugs-submit" Resent-To: bug-guile@gnu.org Resent-Date: Sun, 21 Oct 2018 23:32:02 +0000 Resent-Message-ID: Resent-Sender: help-debbugs@gnu.org X-GNU-PR-Message: cc-closed 26162 X-GNU-PR-Package: guile X-GNU-PR-Keywords: Mail-Followup-To: 26162@debbugs.gnu.org, mhw@netris.org, zefram@fysh.org Original-Received: via spool by 26162-done@debbugs.gnu.org id=D26162.154016471530624 (code D ref 26162); Sun, 21 Oct 2018 23:32:02 +0000 Original-Received: (at 26162-done) by debbugs.gnu.org; 21 Oct 2018 23:31:55 +0000 Original-Received: from localhost ([127.0.0.1]:34871 helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gENCN-0007xr-BO for submit@debbugs.gnu.org; Sun, 21 Oct 2018 19:31:55 -0400 Original-Received: from world.peace.net ([64.112.178.59]:37470) by debbugs.gnu.org with esmtp (Exim 4.84_2) (envelope-from ) id 1gENCL-0007xe-I6 for 26162-done@debbugs.gnu.org; Sun, 21 Oct 2018 19:31:53 -0400 Original-Received: from mhw by world.peace.net with esmtpsa (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.89) (envelope-from ) id 1gENCF-0003dQ-My; Sun, 21 Oct 2018 19:31:47 -0400 In-Reply-To: <20170318221742.GI6518@fysh.org> (Zefram's message of "Sat, 18 Mar 2017 22:17:42 +0000") X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.18 Precedence: list X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 208.118.235.43 X-BeenThere: bug-guile@gnu.org List-Id: "Bug reports for GUILE, GNU's Ubiquitous Extension Language" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: bug-guile-bounces+guile-bugs=m.gmane.org@gnu.org Original-Sender: "bug-guile" Xref: news.gmane.org gmane.lisp.guile.bugs:9235 Archived-At: Zefram writes: > Computing a difference between two SRFI-19 times, using time-difference, > produces sensible results if the result is positive, but often nonsense > if it's negative: > > scheme@(guile-user)> (use-modules (srfi srfi-19)) > scheme@(guile-user)> (time-difference (make-time time-tai 0 1) (make-time time-tai 1000 0)) > $1 = #