Path: csiph.com!usenet.pasdenom.info!weretis.net!feeder1.news.weretis.net!news.solani.org!.POSTED!not-for-mail From: Thomas 'PointedEars' Lahn Newsgroups: comp.lang.javascript,comp.lang.c Subject: Re: "i = i|0" Followup-To: comp.lang.javascript Date: Thu, 12 Jun 2014 16:54:32 +0200 Organization: PointedEars Software (PES) Lines: 72 Message-ID: <1526442.ILQBFeAYIF@PointedEars.de> References: <44f393c9-8b85-4da8-8618-6b11dd3954b2@googlegroups.com> <5398CC30.9020706@verizon.net> <2078529.Slc7CH7YZo@PointedEars.de> <2122350.lP4zVSTnZj@PointedEars.de> Reply-To: Thomas 'PointedEars' Lahn Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8Bit X-Trace: solani.org 1402584872 10433 eJwFwQERACAIA8BKMtjAOJxK/wj+02U6GaKCw0m+Vg0mNncHDD0DuHWWq14XV971vO9xAR8SaBCj (12 Jun 2014 14:54:32 GMT) X-Complaints-To: abuse@news.solani.org NNTP-Posting-Date: Thu, 12 Jun 2014 14:54:32 +0000 (UTC) User-Agent: KNode/4.12.4 X-User-ID: eJwNx8kRACEIBMCUlmMGDGdByT8E/XRVwyjscIKOwZgrj1EFsdiToZXwzeSGfkfGmlI7vPMRYi7rvNeAqn9dJLsUsw== Face: 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 X-Face: %i>XG-yXR'\"2P/C_aO%~;2o~?g0pPKmbOw^=NT`tprDEf++D.m7"}HW6.#=U:?2GGctkL,f89@H46O$ASoW&?s}.k+&. "Thomas 'PointedEars' Lahn" wrote in message > news:2122350.lP4zVSTnZj@PointedEars.de... It's attribution *line*, _not_ attribution novel. >> [F'up2 comp.lang.javascript] Why have you ignored that? This discussion has nothing to do with C (anymore). >> James Kuyper wrote in comp.lang.c: >>> but for this particular C expert, the very existence of >>> comp.lang.javascript seems to contradict the most obvious meaning for >>> that >> >> so), and the newsgroup name is case-insensitive as newsgroup names >> usually go. (You would not talk about “c” either, would you?) > > "c" by itself is ambiguous. "javascript" considerably less so; even > without context, people will know what you were on about (ie. the language > formerly known as Javascript). So those “people” are adopting a new term for a non-existing language that is thought to be a successor to some other non-existing language? (You have no clue what you are talking about. Visit the ECMAScript Support Matrix website to get a minimum one.) >> function f(i) { >> i = i|0; >> return (i + 1)|0; >> } >> […] > > If that function is being called as a=f(b), then another optimisation > might be: > > a = b+1; > > if the function source is visible at the call-site (especially if being > converted from c source code). No, as that would change the semantics considerably. I also think inlining was not what was being asked for here; it is too obvious. > But, how important is that |0 anyway; what would happen if the function > was just: > > function f(i) } > return i+1; > } ? Then the value of the “i” parameter would not necessarily be a numeric value whose fractional part is zero, neither would be the return value. > (I assume that in this language, it is possible to write such a function, > but would anyone actually bother with sticking |0 everywhere? If called > with an invalid argument, it would still fail wouldn't it?) What is “this language”? Your questions have been answered before. Please read more carefully. -- PointedEars FAQ: | SVN: Twitter: @PointedEars2 | ES Matrix: Please do not Cc: me. / Bitte keine Kopien per E-Mail.