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=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID 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: 1108a1,9a0ff0bffdf63657 X-Google-Attributes: gid1108a1,public X-Google-Thread: f43e6,9a0ff0bffdf63657 X-Google-Attributes: gidf43e6,public From: "Robert Martin" Subject: Re: Software landmines (loops) Date: 1998/09/01 Message-ID: <6sidsq$e6c$1@hirame.wwa.com>#1/1 X-Deja-AN: 387065370 References: <6r9f8h$jtm$1@nnrp1.dejanews.com> <6renh8$ga7$1@nnrp1.dejanews.com> <6rf59b$2ud$1@nnrp1.dejanews.com> <6rfra4$rul$1@nnrp1.dejanews.com> <35DBDD24.D003404D@calfp.co.uk> <6sbuod$fra$1@hirame.wwa.com> <35f51e53.48044143@news.erols.com> <6sdiav$e0g$1@hirame.wwa.com> <6sfcft$70p$1@hirame.wwa.com> <6sfcu4$bks@saluki-news.it.siu.edu> <35ed3d4a.2378710@news.erols.com> <6sfqul$ggg$1@hirame.wwa.com> <6sh30l$k4i$1@nnrp1.dejanews.com> <6sh4o4$afu$1@hirame.wwa.com> <6si29e$1ul@gurney.reilly.home> X-MimeOLE: Produced By Microsoft MimeOLE V4.72.2106.4 Organization: WorldWide Access - Midwestern Internet Services - www.wwa.com Newsgroups: comp.lang.eiffel,comp.object,comp.software-eng,comp.lang.ada Date: 1998-09-01T00:00:00+00:00 List-Id: Andrew Reilly wrote in message <6si29e$1ul@gurney.reilly.home>... >In article <6sh4o4$afu$1@hirame.wwa.com>, > "Robert Martin" writes: >> >> dennison@telepath.com wrote in message <6sh30l$k4i$1@nnrp1.dejanews.com>... >>>In article <6sfqul$ggg$1@hirame.wwa.com>, >>> "Robert Martin" wrote: >>>> iteration is the last or not. Also, a programmer must be aware that the >>>> last statement in the loop body will not be executed on the last iteration. >>> >>>Yes, but if that's what the algorithm is *supposed* to do, rephrasing it with >>>flags and if statements won't change that. >> >> On the contrary, it is possible to create a loop body with a single >> invariant, and whose last line will be executed in every iteration. > >How can you say this? > >Or are you counting the endloop statement as the last line? Correct. More specifically, I can guarantee that if I put a line of code just above the endloop statement (closing brace in my case) it will be executed in every iteration. Robert C. Martin | Design Consulting | Training courses offered: Object Mentor | rmartin@oma.com | Object Oriented Design 14619 N Somerset Cr | Tel: (800) 338-6716 | C++ Green Oaks IL 60048 | Fax: (847) 918-1023 | http://www.oma.com "One of the great commandments of science is: 'Mistrust arguments from authority.'" -- Carl Sagan