NNTP-Posting-Date: Wed, 26 Sep 2012 00:46:26 -0500 From: Gareth Owen Newsgroups: comp.lang.c Subject: Re: Swapping logic References: <49f36538-d5ca-411c-bc58-1f17b55911b6@s8g2000vbc.googlegroups.com> Date: Wed, 26 Sep 2012 06:46:26 +0100 Message-ID: <87ehlpnxot.fsf@gmail.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/23.1 (gnu/linux) Cancel-Lock: sha1:zGjt81yVpEa7U8GNIugu2qUESr4= MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Lines: 15 X-Usenet-Provider: http://www.giganews.com X-Trace: sv3-Aqxpn+0rO96agAyNSZSkDsebFhqxeir5Eokx6TfhSMdviXKMLSMK6E4sjHWce3xsl5FO3nLWEu9MPyB!TmwOLzcrDEBJwTIJ9q1fQH1uebVuIEc1dDXASEO3Ec9FO8yidakl8YbEg7u94x9hfTCK X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint properly X-Postfilter: 1.3.40 X-Original-Bytes: 1829 Path: csiph.com!usenet.pasdenom.info!news.stben.net!border3.nntp.ams.giganews.com!Xl.tags.giganews.com!border1.nntp.ams.giganews.com!nntp.giganews.com!local2.nntp.ams.giganews.com!nntp.brightview.co.uk!news.brightview.co.uk.POSTED!not-for-mail Xref: csiph.com comp.lang.c:26707 Andrew Smallshaw writes: > Which is of course complete nonsense. It's the kind of thing that > happens when somone's _opinion_ that is implictly based on one > specific use case gets treated as undisputable and universal fact. > The smallest system I've ever used C on had 53 bytes of RAM. You try > making the argument that the correct solution is _always_ a temporary > variable in that kind of environment. The argument isn't that the temporary is the best (object code) solution, the argument is that a "good enough" compiler will optimise the C-code-with-temporary into optimal object code. The problem is that the "good enough compiler", like the "True Scotsman", is frequently a mythical beast.