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Groups > comp.lang.c > #124113

Re: main's return rule

From Keith Thompson <kst-u@mib.org>
Newsgroups comp.lang.c
Subject Re: main's return rule
Date 2017-12-10 14:39 -0800
Organization None to speak of
Message-ID <lnindeqkaq.fsf@kst-u.example.com> (permalink)
References <97da835b-e7df-42b5-9cc5-4d7ca935b481@googlegroups.com> <59CD49ED.7030101@dignus.com> <lnbmluwqvj.fsf@kst-u.example.com> <505425da-b024-4a06-ab30-c1b211a26cd1@googlegroups.com>

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herrmannsfeldt@gmail.com writes:
> On Thursday, September 28, 2017 at 12:43:52 PM UTC-7, Keith Thompson wrote:
[...]
>> Unix-like systems do follow the "zero good, non-zero bad" convenion.
>> I think MS Windows does too.  OpenVMS, for example, does not.
>
> I thought OpenVMS did also, but in addition it has specific error
> messages that go with some return codes.

The VMS/OpenVMS convention, as I recall, is that odd return codes denote
success and even codes denote failure.

Since the C standard specifically requires 0 to denote success, the C
runtime maps 0 to 1 -- but it doesn't map 1 to 0.

[...]

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something.  This is something.  Therefore, we must do this."
    -- Antony Jay and Jonathan Lynn, "Yes Minister"

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Thread

main's return rule fir <profesor.fir@gmail.com> - 2017-09-28 09:49 -0700
  Re: main's return rule fir <profesor.fir@gmail.com> - 2017-09-28 10:04 -0700
    Re: main's return rule fir <profesor.fir@gmail.com> - 2017-09-28 10:09 -0700
    Re: main's return rule fir <profesor.fir@gmail.com> - 2017-09-28 11:10 -0700
  Re: main's return rule Thomas David Rivers <rivers@dignus.com> - 2017-09-28 15:13 -0400
    Re: main's return rule Keith Thompson <kst-u@mib.org> - 2017-09-28 12:43 -0700
      Re: main's return rule Thomas David Rivers <rivers@dignus.com> - 2017-10-02 10:12 -0400
      Re: main's return rule herrmannsfeldt@gmail.com - 2017-12-10 13:54 -0800
        Re: main's return rule Keith Thompson <kst-u@mib.org> - 2017-12-10 14:39 -0800
          Re: main's return rule herrmannsfeldt@gmail.com - 2017-12-13 05:01 -0800
            Re: main's return rule Keith Thompson <kst-u@mib.org> - 2017-12-13 09:17 -0800
              Re: main's return rule scott@slp53.sl.home (Scott Lurndal) - 2017-12-13 18:31 +0000
              Re: main's return rule herrmannsfeldt@gmail.com - 2017-12-14 11:51 -0800
      Re: main's return rule Manfred <noname@invalid.add> - 2017-12-13 20:36 +0100
        Re: main's return rule "James R. Kuyper" <jameskuyper@verizon.net> - 2017-12-13 15:14 -0500
        Re: main's return rule supercat@casperkitty.com - 2017-12-14 07:47 -0800
          Re: main's return rule Manfred <noname@invalid.add> - 2017-12-14 20:18 +0100
    Re: main's return rule fir <profesor.fir@gmail.com> - 2017-09-29 07:50 -0700
      Re: main's return rule Chad <cdalten@gmail.com> - 2017-09-29 08:14 -0700
      Re: main's return rule gordonb.3z6ou@burditt.org (Gordon Burditt) - 2017-09-29 13:01 -0500

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