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: fac41,2c6139ce13be9980 X-Google-Attributes: gidfac41,public X-Google-Thread: f43e6,2c6139ce13be9980 X-Google-Attributes: gidf43e6,public X-Google-Thread: 1108a1,2c6139ce13be9980 X-Google-Attributes: gid1108a1,public X-Google-Thread: 103376,3d3f20d31be1c33a X-Google-Attributes: gid103376,public From: jsa@alexandria.organon.com (Jon S Anthony) Subject: Re: Safety-critical development in Ada and Eiffel Date: 1997/08/13 Message-ID: #1/1 X-Deja-AN: 263970963 Distribution: world References: Organization: PSINet Newsgroups: comp.object,comp.software-eng,comp.lang.ada,comp.lang.eiffel Date: 1997-08-13T00:00:00+00:00 List-Id: In article donh@syd.csa.com.au (Don Harrison) writes: > :The problem with this is the simple observation of "why would the > :assertions be there in the first place?" After all, in the particular > :case at hand, they were _intentionally_ removed. And with perfectly > :sound engineering principles in mind. Assertions in the code _cannot_ > :capture the constraints presumed for the context of use. This has to > :come from somewhere else (external documentation, "instructions", > :"warrenty notes", whatever.) The odd thing here is that this point > :should be "blindingly obvious", to use one of your phrases. > > Yes, I agree it is. I'm talking about (an aspect of) how I think it > *ought* to be done, not how it *was* done. The point is, the significant aspect of your "how it ought to be done" is _impossible_. Not just wasn't done, not just impractical, but outright impossible. However, you and the E-Jihad have succeeded in wearing me down. I give up. The whole thing is pointless. /Jon -- Jon Anthony OMI, Belmont, MA 02178, 617.484.3383 "Nightmares - Ha! The way my life's been going lately, Who'd notice?" -- Londo Mollari