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=0.2 required=5.0 tests=BAYES_00,INVALID_MSGID, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: fac41,9a0ff0bffdf63657 X-Google-Attributes: gidfac41,public X-Google-Thread: 103376,4b06f8f15f01a568 X-Google-Attributes: gid103376,public X-Google-Thread: f43e6,9a0ff0bffdf63657 X-Google-Attributes: gidf43e6,public X-Google-Thread: 1108a1,9a0ff0bffdf63657 X-Google-Attributes: gid1108a1,public From: ell@access.digex.net (Ell) Subject: Re: Software landmines (was: Why C++ is successful) Date: 1998/08/21 Message-ID: <35de0653.24312659@news.erols.com>#1/1 X-Deja-AN: 383245996 Content-Transfer-Encoding: 7bit References: <902934874.2099.0.nnrp-10.c246a717@news.demon.co.uk> <6r1glm$bvh$1@nnrp1.dejanews.com> <6r9f8h$jtm$1@nnrp1.dejanews.com> <6renh8$ga7$1@nnrp1.dejanews.com> <6rf59b$2ud$1@nnrp1.dejanews.com> <35dc6bf4.5328251@news.erols.com> <35dfb9a8.4685477@news.erols.com> Content-Type: text/plain; charset=us-ascii X-Complaints-To: abuse@rcn.com X-Trace: winter.news.erols.com 903678433 7129 207.172.64.188 (21 Aug 1998 05:47:13 GMT) Organization: Universe Mime-Version: 1.0 Reply-To: ell@access.digex.net Newsgroups: comp.lang.eiffel,comp.object,comp.software-eng,comp.lang.ada Date: 1998-08-21T00:00:00+00:00 List-Id: "Larry Brasfield" wrote: >Ell wrote in message <35dfb9a8.4685477@news.erols.com>... >> >>ell@access.digex.net (Ell) wrote: >>> >>>I'm willing to use 'goto' in time critical code where inlines are not >>>possible, to save stack winding and unwinding. Other than that I'd >>>rather use a procedure call and returns to get back. >>And even then, I try to organize the code so that I invoke 'goto >>:labelX' and jump to its target ':labelX' **within** a single >>procedure/function/module. >>I try **never** to cross procedure/funtion/module boundaries with a >>'goto', when I use it for time critical code. >Is there any language in ordinary use that permits >a goto to cross a procedure boundary? If so, how >are goto target name scopes defined? I'm so into the aphorism that I've never even tried to cross function, or procedure boundaries in C, C++, or Pascal using 'goto :labelX'. >If not, why >make so much of trying to avoid such goto's? Even within a function or procedure, things can get hairy. I think that in general within a function, or procedure, flow control should only be diverted by conditionals like 'if', 'case', or 'while/do'. And in general the most extreme flow control action by these conditionals should be 'return', or a procedure/function call. Elliott -- :=***=: Objective * Pre-code Modelling * Holistic :=***=: Hallmarks of the best SW Engineering "The domain object model is the foundation of OOD." Check out SW Modeller vs SW Craftite Central : www.access.digex.net/~ell Copyright 1998 Elliott. exclusive of others' writing. may be copied without permission only in the comp.* usenet and bitnet groups.