Re: Continue with learning C

From	Ian Collins <ian-news@hotmail.com>
Newsgroups	comp.lang.c
Subject	Re: Continue with learning C
Date	2016-09-19 20:51 +1200
Message-ID	<e49n99FtdveU4@mid.individual.net> (permalink)
References	(3 earlier) <nrf0r3$ud8$1@dont-email.me> <ba6477d8-59a2-4a24-8b52-49a52c0c4691@googlegroups.com> <nrkd4e$f1q$1@dont-email.me> <bbd95f72-0de5-531c-f401-991ae91ce4c6@verizon.net> <d2d7c674-a1ae-40ab-b6df-80f0a0fd4e9f@googlegroups.com>

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On 09/19/16 08:25 PM, Alla _ wrote:
> On Sunday, September 18, 2016 at 1:14:58 AM UTC+3, James R. Kuyper wrote:
>> On 09/17/2016 05:38 PM, Richard Heathfield wrote:
>>> On 17/09/16 05:02, Malcolm McLean wrote:
>>>> On Thursday, September 15, 2016 at 9:38:10 PM UTC+1, Richard Heathfield wrote:
>>>>>
>>>>> If experienced people are constantly telling you you're going too fast
>>>>> and you keep going faster, eventually they'll give up trying to advise
>>>>> you. By all means go as fast as you can, but not any faster. That way
>>>>> lies slapdash make-do-and-mend programming.
>>>>>
>>>> Depends. You can normally sell software with a few bugs in it.
>>>
>>> Don't you find that to be rather embarrassing?
>>
>> If there was any significant amount of software being sold that was
>> entirely bug-free, I'd be embarrassed.

> I wonder why is that so? Why are bugs staying in final drafts?

Cost.  Quality costs, so a trade off has to be made as to what is 
considered acceptable quality.  If software is safety critical, the high 
cost in both time and money of validation and testing is unavoidable and 
accepted.  Apply the same rigour to something trivial like a game would 
not be acceptable.

> If, for example,
> you print a school textbook on grammar with typos in it, I'll think that it's
> defective and not suitable for sale/use. Why all programs contain bugs?
> Isn't it an indication of a poor quality? Can one allow himself a defect in,
> say, building an apartment building, or in building a nuclear factory?

As above.  Even with the rigorous checking, buildings (as those of us 
who have experienced big earthquakes know only too well) aren't always 
perfect..

-- 
Ian

Thread

Continue with learning C Alla _ <modelling.data@gmail.com> - 2016-09-15 05:11 -0700
  Re: Continue with learning C "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-09-15 05:29 -0700
  Re: Continue with learning C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-09-15 15:01 +0100
  Re: Continue with learning C Richard Heathfield <rjh@cpax.org.uk> - 2016-09-15 15:32 +0100
    Re: Continue with learning C Alla _ <modelling.data@gmail.com> - 2016-09-15 08:10 -0700
    Re: Continue with learning C luser droog <luser.droog@gmail.com> - 2016-09-15 12:06 -0700
      Re: Continue with learning C Richard Heathfield <rjh@cpax.org.uk> - 2016-09-15 21:38 +0100
        Re: Continue with learning C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-09-16 21:02 -0700
          Re: Continue with learning C "Osmium" <r124c4u102@comcast.net> - 2016-09-17 08:03 -0500
          Re: Continue with learning C Richard Heathfield <rjh@cpax.org.uk> - 2016-09-17 22:38 +0100
            Re: Continue with learning C "James R. Kuyper" <jameskuyper@verizon.net> - 2016-09-17 18:14 -0400
              Re: Continue with learning C raltbos@xs4all.nl (Richard Bos) - 2016-09-18 10:47 +0000
              Re: Continue with learning C Alla _ <modelling.data@gmail.com> - 2016-09-19 01:25 -0700
                Re: Continue with learning C Ian Collins <ian-news@hotmail.com> - 2016-09-19 20:51 +1200
                Re: Continue with learning C James Kuyper <jameskuyper@verizon.net> - 2016-09-19 09:49 -0400
                Re: Continue with learning C Richard Heathfield <rjh@cpax.org.uk> - 2016-09-19 15:15 +0100
                Re: Continue with learning C Keith Thompson <kst-u@mib.org> - 2016-09-19 11:39 -0700
                Re: Continue with learning C Reinhardt Behm <rbehm@hushmail.com> - 2016-09-20 09:55 +0800
                Re: Continue with learning C David Brown <david.brown@hesbynett.no> - 2016-09-20 08:50 +0200
                Re: Continue with learning C Reinhardt Behm <rbehm@hushmail.com> - 2016-09-20 18:04 +0800
                Re: Continue with learning C David Brown <david.brown@hesbynett.no> - 2016-09-20 13:25 +0200
                Re: Continue with learning C Reinhardt Behm <rbehm@hushmail.com> - 2016-09-20 20:18 +0800
                Re: Continue with learning C David Brown <david.brown@hesbynett.no> - 2016-09-20 15:25 +0200
                Re: Continue with learning C Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-20 08:45 -0400
                Re: Continue with learning C Reinhardt Behm <rbehm@hushmail.com> - 2016-09-20 22:05 +0800
                Re: Continue with learning C Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-20 10:56 -0400
                Re: Continue with learning C Rosario19 <Ros@invalid.invalid> - 2016-09-19 18:55 +0200
                Re: Continue with learning C Anton Shepelev <anton.txt@gmail.com> - 2016-09-25 01:08 +0300
            Re: Continue with learning C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-09-17 17:08 -0700
              Re: Continue with learning C Richard Heathfield <rjh@cpax.org.uk> - 2016-09-18 01:11 +0100
                Re: Continue with learning C Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-17 21:32 -0400
                Re: Continue with learning C David Brown <david.brown@hesbynett.no> - 2016-09-18 16:27 +0200
                Re: Continue with learning C Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-18 16:08 -0400
                Re: Continue with learning C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-09-18 07:30 -0700
                Re: Continue with learning C Jerry Stuckle <jstucklex@attglobal.net> - 2016-09-18 16:07 -0400
                Re: Continue with learning C David Brown <david.brown@hesbynett.no> - 2016-09-18 16:38 +0200
                Re: Continue with learning C BartC <bc@freeuk.com> - 2016-09-18 16:37 +0100
                Re: Continue with learning C Reinhardt Behm <rbehm@hushmail.com> - 2016-09-18 23:54 +0800
                Re: Continue with learning C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-09-18 16:56 -0700
                Re: Continue with learning C Richard Heathfield <rjh@cpax.org.uk> - 2016-09-18 17:05 +0100
                Re: Continue with learning C "James R. Kuyper" <jameskuyper@verizon.net> - 2016-09-18 12:28 -0400
                Re: Continue with learning C Malcolm McLean <malcolm.mclean5@btinternet.com> - 2016-09-18 17:00 -0700
                Re: Continue with learning C Alla _ <modelling.data@gmail.com> - 2016-09-19 01:40 -0700
                Re: Continue with learning C "Osmium" <r124c4u102@comcast.net> - 2016-09-19 08:55 -0500
                Re: Continue with learning C "Osmium" <r124c4u102@comcast.net> - 2016-09-18 11:31 -0500
                Re: Continue with learning C Ian Collins <ian-news@hotmail.com> - 2016-09-19 07:25 +1200
                Re: Continue with learning C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-09-18 20:36 +0100
                Re: Continue with learning C "James R. Kuyper" <jameskuyper@verizon.net> - 2016-09-18 15:45 -0400
                Re: Continue with learning C Rosario19 <Ros@invalid.invalid> - 2016-09-19 18:58 +0200
                Re: Continue with learning C "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-09-18 09:55 -0700
                Re: Continue with learning C "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2016-09-18 10:12 -0700
                Re: Continue with learning C luser droog <luser.droog@gmail.com> - 2016-09-18 13:11 -0700
                Re: Continue with learning C David Brown <david.brown@hesbynett.no> - 2016-09-18 21:54 +0200
                Re: Continue with learning C supercat@casperkitty.com - 2016-09-18 15:58 -0700
                Re: Continue with learning C Richard Heathfield <rjh@cpax.org.uk> - 2016-09-19 07:09 +0100
                Re: Continue with learning C David Brown <david.brown@hesbynett.no> - 2016-09-19 10:04 +0200
                Re: Continue with learning C BartC <bc@freeuk.com> - 2016-09-19 10:38 +0100
                Re: Continue with learning C David Brown <david.brown@hesbynett.no> - 2016-09-19 13:29 +0200
                Re: Continue with learning C supercat@casperkitty.com - 2016-09-19 08:04 -0700
                Re: Continue with learning C Reinhardt Behm <rbehm@hushmail.com> - 2016-09-20 09:33 +0800
                Re: Continue with learning C supercat@casperkitty.com - 2016-09-19 20:47 -0700
                Re: Continue with learning C David Brown <david.brown@hesbynett.no> - 2016-09-20 09:00 +0200
                Re: Continue with learning C Reinhardt Behm <rbehm@hushmail.com> - 2016-09-20 17:59 +0800
                Re: Continue with learning C Ike Naar <ike@iceland.freeshell.org> - 2016-09-20 17:24 +0000
                Re: Continue with learning C David Brown <david.brown@hesbynett.no> - 2016-09-20 08:57 +0200
                Re: Continue with learning C supercat@casperkitty.com - 2016-09-20 10:53 -0700
                Re: Continue with learning C Reinhardt Behm <rbehm@hushmail.com> - 2016-09-19 13:19 +0800
                Re: Continue with learning C Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-09-19 01:30 +0100
      Re: Continue with learning C Alla _ <modelling.data@gmail.com> - 2016-09-19 01:15 -0700
  Re: Continue with learning C Barry Schwarz <schwarzb@dqel.com> - 2016-09-15 12:38 -0700
  Re: Continue with learning C fir <profesor.fir@gmail.com> - 2016-09-21 11:42 -0700
    Re: Continue with learning C fir <profesor.fir@gmail.com> - 2016-09-21 12:40 -0700
      Re: Continue with learning C fir <profesor.fir@gmail.com> - 2016-09-21 12:49 -0700
      Re: Continue with learning C fir <profesor.fir@gmail.com> - 2016-09-23 14:47 -0700
        Re: Continue with learning C fir <profesor.fir@gmail.com> - 2016-09-23 14:59 -0700

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