From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me X-Spam-Level: *** X-Spam-Status: No, score=3.8 required=5.0 tests=BAYES_00,INVALID_MSGID, RATWARE_MS_HASH,RATWARE_OUTLOOK_NONAME autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,8057d38c9d4235d9 X-Google-Attributes: gid103376,public From: "Nick Roberts" Subject: Re: Smart compilers? Date: 1998/01/23 Message-ID: <01bd2852$c39827c0$c0f682c1@xhv46.dial.pipex.com>#1/1 X-Deja-AN: 319046200 Content-Transfer-Encoding: 7bit References: <199801231254.NAA10827@olaris.misil> <6aaik2$2da$1@peuplier.wanadoo.fr> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Organization: UUNet UK server (post doesn't reflect views of UUNet UK) Newsgroups: comp.lang.ada Date: 1998-01-23T00:00:00+00:00 List-Id: I've always thought a neat hack in operating systems (file systems, to be pedantic) would be for them to test a (small) file, when it is closed after writes have taken place, to see whether anything has _actually_ been changed (so it would have to do a read-compare-write for every write, yes), and not update the m-time if nothing has. These things keep me awake at night, you know. Maybe I need help!!! ;-) -- Nick Roberts Croydon, UK Proprietor, ThoughtWing Software; Independent Software Development Consultant * Nick.Roberts@dial.pipex.com * Voicemail & Fax +44 181-405 1124 * *** Always game for a verbal joust (usually as the turkey) *** Jean-Pierre Rosen wrote in article <6aaik2$2da$1@peuplier.wanadoo.fr>... > There may be also another source of confusion; if you are using Grasp, it > seems that it saves all files from open windows before compiling, even those > that have not been changed. So if you have a window with the spec open, it > will change the time-stamp of the file, and you will recompile more than is > actually needed.