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=-0.3 required=5.0 tests=BAYES_00, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Thread: 103376,c9d5fc258548b22a X-Google-NewGroupId: yes X-Google-Attributes: gida07f3367d7,domainid0,public,usenet X-Google-Language: ENGLISH,ASCII-7-bit Path: g2news1.google.com!news3.google.com!feeder1.cambriumusenet.nl!feeder3.cambriumusenet.nl!feed.tweaknews.nl!85.158.31.10.MISMATCH!newsfeed-0.progon.net!progon.net!uucp.gnuu.de!newsfeed.arcor.de!newsspool4.arcor-online.net!news.arcor.de.POSTED!not-for-mail From: "Dmitry A. Kazakov" Subject: Re: How do I write directly to a memory address? Newsgroups: comp.lang.ada User-Agent: 40tude_Dialog/2.0.15.1 MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Reply-To: mailbox@dmitry-kazakov.de Organization: cbb software GmbH References: <67063a5b-f588-45ea-bf22-ca4ba0196ee6@l11g2000yqb.googlegroups.com> <05a3673e-fb97-449c-94ed-1139eb085c32@x1g2000yqb.googlegroups.com> <8r86vgFc3uU1@mid.individual.net> <19fh1chm74f9.11cws0j5bckze.dlg@40tude.net> <4d4ff70e$0$6886$9b4e6d93@newsspool2.arcor-online.net> <737a6396-72bd-4a1e-8895-7d50f287960e@d28g2000yqc.googlegroups.com> <4d5008a5$0$6879$9b4e6d93@newsspool2.arcor-online.net> <4d5031fe$0$6765$9b4e6d93@newsspool3.arcor-online.net> <1f229967-d3cf-42b6-8087-c97ee08652f3@i40g2000yqh.googlegroups.com> <4d51169e$0$7657$9b4e6d93@newsspool1.arcor-online.net> <1bnp0pw1c8r5b$.guxc48qweiwe.dlg@40tude.net> <8662stskn8.fsf@gareth.avalon.lan> Date: Wed, 9 Feb 2011 10:16:12 +0100 Message-ID: <1dr5g15dsh9jz$.2ljktj6j900v.dlg@40tude.net> NNTP-Posting-Date: 09 Feb 2011 10:16:12 CET NNTP-Posting-Host: 96f78c62.newsspool4.arcor-online.net X-Trace: DXC=BbbZ?HVTJ87^8FBo0_81f>4IUK7enW;^6ZC`4\`mfM[68DC3k^kf:He_TD0 X-Complaints-To: usenet-abuse@arcor.de Xref: g2news1.google.com comp.lang.ada:17079 Date: 2011-02-09T10:16:12+01:00 List-Id: On Wed, 09 Feb 2011 08:59:55 +0100, Mart van de Wege wrote: > "Dmitry A. Kazakov" writes: > >> On Tue, 08 Feb 2011 11:30:51 -0700, Jeffrey Carter wrote: >> >>> The problem with this is it violates Dijkstra's adage that we have small brains >>> and must do our work with them. Few of us can keep all the code for the entire >>> project in his head, and there are times when what one remembers is incorrect. >>> And so, eventually, in any real project, even the best of developers make errors >>> under such circumstances. >>> >>> So, when talking to a C coder, "You said int, so negative values should be OK" >>> isn't considered a valid argument. The response will be that you are supposed to >>> have read the code and realized what would happen if you called it with a >>> negative value. If you then go ahead and do so, you get what you asked for. >> >> Three candidates in a row I have interviewed for a C/C++/C# position could >> not answer the question how to test the 3rd bit of a byte in C. All three >> had 3+ years of programming "experience." > > I'm not much of a programmer at all, and I don't know the exact > construct in C, but isn't that simply a question of doing a bitwise AND > with 0x04, assuming counting from the RHS? Yes it is. There must be something awfully wrong with the software engineering industry and education. 20 years ago such a question would offend the candidate. 10 years ago I would not ask it. These days I must ask it. I am preparing for worse... -- Regards, Dmitry A. Kazakov http://www.dmitry-kazakov.de