How could defining a variable, and not using it, be a problem ?

From	Jeff-Relf.Me <@.>
Newsgroups	comp.os.linux.advocacy, sci.physics, alt.free.newsservers, news.software.readers
Subject	How could defining a variable, and not using it, be a problem ?
Date	2016-03-28 14:52 -0700
Organization	Glorb Internet Services, http://www.glorb.com
Message-ID	<Jeff-Relf.Me@Mar.28{2.52P.Seattle.2016}> (permalink)
References	(1 earlier) <Jeff-Relf.Me@Mar.27{9.21A.Seattle.2016}> <nd9ru3$751$1@dont-email.me> <ng9ifb57orabua1vr6grldtg8k6m91djvq@4ax.com> <Jeff-Relf.Me@Mar.28{6.17A.Seattle.2016}> <ndc87p$nuh$2@dont-email.me>

Cross-posted to 4 groups.

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PeterKöhlmann wrote:
> > Disabling certain warnings is best, I've found.
> > Sometimes I want unreferenced variables, for example, just because.
> > I'm using my code, so I know that it works the way I want.
> 
> using "unreferenced variables" is a way for disaster, 
> and every programmer better than DumbFullSnit should know that

How could defining a variable, and not using it, be a problem ?

Quoting WikiPedia: ＜＜

  An "unreferenced variable" in the source code of a computer program
  is a variable that is defined but which is never used.  ＞＞

C4700 is: uninitialized local variable 'XYZ' used.

I don't disable "C4700" warnings.

Thread

Eternal-September  Motzarella  Aioe  Dizum  Albasani Jeff-Relf.Me <@.> - 2016-03-27 09:21 -0700
  Re: Eternal-September  Motzarella  Aioe  Dizum  Albasani Nobody <nobody@nowhere.net> - 2016-03-27 12:25 -0400
  Eternal-September Motzarella Aioe Dizum Albasani Jeff-Relf.Me <@.> - 2016-03-27 09:51 -0700
    Usenet, eMail, CraigsList, WikiPedia, etc. allow <PRE>. Jeff-Relf.Me <@.> - 2016-03-27 10:13 -0700
      Re: Usenet, eMail, CraigsList, WikiPedia, etc. allow <PRE>. benj <none@gmail.com> - 2016-03-28 00:55 -0400
        Re: Usenet, eMail, CraigsList, WikiPedia, etc. allow <PRE>. jimp@specsol.spam.sux.com - 2016-03-28 05:57 +0000
  Re: Eternal-September Motzarella Aioe Dizum Albasani Poutnik <poutnik4nntp@gmail.com> - 2016-03-27 22:04 +0200
  Re: Eternal-September  Motzarella  Aioe  Dizum  Albasani tlvp <mPiOsUcB.EtLlLvEp@att.net> - 2016-03-27 19:53 -0400
    Re: Eternal-September  Motzarella  Aioe  Dizum  Albasani chrisv <chrisv@nospam.invalid> - 2016-03-28 07:23 -0500
  Re: Eternal-September  Motzarella  Aioe  Dizum  Albasani Peter Köhlmann <peter-koehlmann@t-online.de> - 2016-03-28 01:59 +0200
    Re: Eternal-September  Motzarella  Aioe  Dizum  Albasani chrisv <chrisv@nospam.invalid> - 2016-03-28 07:44 -0500
      My code only does what _I_ want, not what "you" want. Jeff-Relf.Me <@.> - 2016-03-28 06:15 -0700
      My code only does what _I_ want, not what "you" want. Jeff-Relf.Me <@.> - 2016-03-28 06:17 -0700
        Re: My code only does what _I_ want, not what "you" want. owl <owl@rooftop.invalid> - 2016-03-28 19:33 +0000
        Re: My code only does what _I_ want, not what "you" want. Peter Köhlmann <peter-koehlmann@t-online.de> - 2016-03-28 23:41 +0200
          How could defining a variable, and not using it, be a problem ? Jeff-Relf.Me <@.> - 2016-03-28 14:52 -0700
            Re: How could defining a variable, and not using it, be a problem ? Somebody <somebody@nowhere.net> - 2016-03-28 18:01 -0400
            Re: How could defining a variable, and not using it, be a problem ? Peter Köhlmann <peter-koehlmann@t-online.de> - 2016-03-29 00:25 +0200
              Re: How could defining a variable, and not using it, be a problem ? Chris Ahlstrom <OFeem1987@teleworm.us> - 2016-03-28 18:30 -0400
                Re: How could defining a variable, and not using it, be a problem ? Peter Köhlmann <peter-koehlmann@t-online.de> - 2016-03-29 00:50 +0200
                Re: How could defining a variable, and not using it, be a problem ? Somebody <somebody@nowhere.net> - 2016-03-28 18:54 -0400
                Re: How could defining a variable, and not using it, be a problem ? Chris Ahlstrom <OFeem1987@teleworm.us> - 2016-03-28 21:10 -0400
              Peter Kohlmann has brain damage, I think. Jeff-Relf.Me <@.> - 2016-03-28 15:53 -0700
                Re: Peter Kohlmann has brain damage, I think. owl <owl@rooftop.invalid> - 2016-03-28 23:32 +0000
          Re: My code only does what _I_ want, not what "you" want. chrisv <chrisv@nospam.invalid> - 2016-03-29 07:24 -0500

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