From 1814134182724100256 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: f78e5,d93488bb970aa444 X-Google-Attributes: gidf78e5,public X-Google-ArrivalTime: 2001-06-14 11:08:01 PST Path: archiver1.google.com!newsfeed.google.com!newsfeed.stanford.edu!skynet.be!dispose.news.demon.net!news.demon.co.uk!demon!mail2news.demon.co.uk!not-for-mail From: Pete Becker Newsgroups: comp.std.c++ Subject: Re: How to test for NaNs and infinites? Date: Thu, 14 Jun 2001 18:07:45 GMT Organization: Dinkumware, Ltd Approved: Fergus Henderson , moderator of comp.std.c++ Message-ID: <3B28B104.807ED9AC@acm.org> References: <3B176D2F.70C3E7F7@meteo.fr> <9fql8h$pfg$1@news.hal-pc.org> <3B21100E.5B25F7AA@acm.org> <9frdlp$14bc$1@news.hal-pc.org> <9g2em7$1pkk$1@news.hal-pc.org> <9g7q93$1lu1$1@news.hal-pc.org> <3B278187.9E196C80@acm.org> <9g8a84$1uah$1@news.hal-pc.org> X-Trace: mail2news.demon.co.uk 992542069 mail2news:4729 mail2news mail2news.demon.co.uk X-Complaints-To: abuse@demon.net X-Mail2News-Path: news.demon.net!mulga.cs.mu.oz.au X-Authentication-Warning: mulga.cs.mu.OZ.AU: fjh set sender to devnull@stump.algebra.com using -f X-Robomod: STUMP, ichudov@algebra.com (Igor Chudov) Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit NNTP-Posting-Date: 14 Jun 2001 12:42:03 GMT X-Accept-Language: en Lines: 33 Xref: archiver1.google.com comp.std.c++:6113 Greg Brewer wrote: > > "Pete Becker" wrote in message > news:3B278187.9E196C80@acm.org... > > > Huh????? Name one compiler that won't compile it. Undefined behavior > is > > > not illegal. Plus it works for most people. > > >From the C++ language definition: > > 1.3.12 undefined behavior > [snip] > > > > Of course, the Standard can't say that something is "illegal"; all it > > can say is that it cannot be used in a conforming program. And that's > > precisely what the above definition says. > > I can only reply that you are reading something into the quoted section that > simply is not there. > Could you, perhaps, explain why you think that "illegal" is not a reasonable colloquial term for "erroneous program construct"? Particularly since it's universally used to mean just that. -- Pete Becker Dinkumware, Ltd. (http://www.dinkumware.com) --- [ comp.std.c++ is moderated. To submit articles, try just posting with ] [ your news-reader. If that fails, use mailto:std-c++@ncar.ucar.edu ] [ --- Please see the FAQ before posting. --- ] [ FAQ: http://www.research.att.com/~austern/csc/faq.html ]