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Re: standard error codes

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From Keith Thompson <kst-u@mib.org>
Newsgroups comp.lang.c
Subject Re: standard error codes
Date Thu, 12 Jan 2017 13:03:37 -0800
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Richard Heathfield <rjh@cpax.org.uk> writes:
[...]
> Sure. But ALMOST without exception, when I call diff, I'm using it to 
> determine whether a difference exists between two files that I expect to 
> be the same. Thus, a difference would count as failure. No difference 
> would count as success, and by a happy coincidence 0 (success) is what 
> is returned when there is no difference between the two files. This is a 
> perfectly reasonable way to justify the choices that the diff writers 
> made...

OK.  I usually want to see how two files (often two versions of the same
file) differ, and I usually expect them to differ.  If all I care about
is whether they differ or not, "cmp" is likely to be faster (perhaps not
significantly so).

[...]

> Anyway... back to C?

By all means.

-- 
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

standard  error codes Thiago Adams <thiago.adams@gmail.com> - 2017-01-08 06:34 -0800
  Re: standard  error codes Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-01-08 11:05 -0800
    Re: standard  error codes Thiago Adams <thiago.adams@gmail.com> - 2017-01-09 03:33 -0800
      Re: standard  error codes Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-01-09 04:55 -0800
        Re: standard  error codes Keith Thompson <kst-u@mib.org> - 2017-01-09 09:06 -0800
          Re: standard  error codes Thiago Adams <thiago.adams@gmail.com> - 2017-01-09 09:52 -0800
            Re: standard error codes BartC <bc@freeuk.com> - 2017-01-09 21:50 +0000
              Re: standard error codes BartC <bc@freeuk.com> - 2017-01-09 22:36 +0000
                Re: standard error codes supercat@casperkitty.com - 2017-01-09 14:51 -0800
                Re: standard error codes BartC <bc@freeuk.com> - 2017-01-09 23:39 +0000
                Re: standard error codes supercat@casperkitty.com - 2017-01-09 15:51 -0800
                Re: standard error codes Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-01-09 16:08 -0800
                Re: standard error codes supercat@casperkitty.com - 2017-01-09 18:51 -0800
                Re: standard error codes Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-01-10 02:02 -0800
                Re: standard error codes supercat@casperkitty.com - 2017-01-10 07:34 -0800
                Re: standard error codes BartC <bc@freeuk.com> - 2017-01-10 01:39 +0000
                Re: standard error codes Keith Thompson <kst-u@mib.org> - 2017-01-10 09:07 -0800
                Re: standard error codes supercat@casperkitty.com - 2017-01-10 09:59 -0800
                Re: standard error codes Keith Thompson <kst-u@mib.org> - 2017-01-10 12:02 -0800
                Re: standard error codes Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-01-10 12:53 -0800
                Re: standard error codes Keith Thompson <kst-u@mib.org> - 2017-01-10 13:03 -0800
                Re: standard error codes Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-01-10 15:41 -0800
                Re: standard error codes Ben Bacarisse <ben.usenet@bsb.me.uk> - 2017-01-11 02:56 +0000
                Re: standard error codes supercat@casperkitty.com - 2017-01-11 07:42 -0800
                Re: standard error codes supercat@casperkitty.com - 2017-01-10 12:59 -0800
                Re: standard error codes BartC <bc@freeuk.com> - 2017-01-10 18:14 +0000
                Re: standard error codes Keith Thompson <kst-u@mib.org> - 2017-01-10 12:12 -0800
                Re: standard error codes BartC <bc@freeuk.com> - 2017-01-10 20:35 +0000
                Re: standard error codes Keith Thompson <kst-u@mib.org> - 2017-01-10 13:00 -0800
                Re: standard error codes supercat@casperkitty.com - 2017-01-11 08:16 -0800
                Re: standard error codes Richard Heathfield <rjh@cpax.org.uk> - 2017-01-11 18:25 +0000
                Re: standard error codes BartC <bc@freeuk.com> - 2017-01-11 19:09 +0000
                Re: standard error codes Keith Thompson <kst-u@mib.org> - 2017-01-11 12:03 -0800
                Re: standard error codes Richard Heathfield <rjh@cpax.org.uk> - 2017-01-11 20:10 +0000
                Re: standard error codes Keith Thompson <kst-u@mib.org> - 2017-01-11 12:19 -0800
                Re: standard error codes BartC <bc@freeuk.com> - 2017-01-11 20:31 +0000
                Re: standard error codes Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2017-01-11 15:32 -0500
                Re: standard error codes Richard Heathfield <rjh@cpax.org.uk> - 2017-01-11 20:48 +0000
                Re: standard error codes Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2017-01-11 15:58 -0500
                Re: standard error codes Keith Thompson <kst-u@mib.org> - 2017-01-11 13:01 -0800
                Re: standard error codes Richard Heathfield <rjh@cpax.org.uk> - 2017-01-11 21:05 +0000
                Re: standard error codes BartC <bc@freeuk.com> - 2017-01-11 21:08 +0000
                Re: standard error codes Gareth Owen <gwowen@gmail.com> - 2017-01-11 21:38 +0000
                Re: standard error codes BartC <bc@freeuk.com> - 2017-01-11 21:58 +0000
                Re: standard error codes David Brown <david.brown@hesbynett.no> - 2017-01-12 12:11 +0100
                Re: standard error codes Keith Thompson <kst-u@mib.org> - 2017-01-12 09:28 -0800
                Re: standard error codes Richard Heathfield <rjh@cpax.org.uk> - 2017-01-12 18:06 +0000
                Re: standard error codes Keith Thompson <kst-u@mib.org> - 2017-01-12 11:39 -0800
                Re: standard error codes Richard Heathfield <rjh@cpax.org.uk> - 2017-01-12 19:50 +0000
                Re: standard error codes Keith Thompson <kst-u@mib.org> - 2017-01-12 13:03 -0800
                Re: standard error codes Richard Heathfield <rjh@cpax.org.uk> - 2017-01-12 21:13 +0000
                Re: standard error codes <william@wilbur.25thandClement.com> - 2017-01-12 20:00 -0800
                Re: standard error codes Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-01-13 01:56 -0800
                Re: standard error codes Richard Heathfield <rjh@cpax.org.uk> - 2017-01-13 12:54 +0000
                Re: standard error codes Keith Thompson <kst-u@mib.org> - 2017-01-13 09:35 -0800
                Re: standard error codes Richard Heathfield <rjh@cpax.org.uk> - 2017-01-13 17:38 +0000
                Re: standard error codes James Kuyper <jameskuyper@verizon.net> - 2017-01-13 13:06 -0500
                Re: standard error codes raltbos@xs4all.nl (Richard Bos) - 2017-01-18 12:00 +0000
                Re: standard error codes Richard Heathfield <rjh@cpax.org.uk> - 2017-01-18 12:13 +0000
                Re: standard error codes Malcolm McLean <malcolm.mclean5@btinternet.com> - 2017-01-12 16:43 -0800
                Re: standard error codes <william@wilbur.25thandClement.com> - 2017-01-12 19:34 -0800
                Re: standard error codes Keith Thompson <kst-u@mib.org> - 2017-01-13 09:27 -0800
                Re: standard error codes raltbos@xs4all.nl (Richard Bos) - 2017-01-12 19:33 +0000
                Re: standard error codes Keith Thompson <kst-u@mib.org> - 2017-01-12 12:10 -0800
                Re: standard error codes supercat@casperkitty.com - 2017-01-11 11:50 -0800
                Re: standard error codes Richard Heathfield <rjh@cpax.org.uk> - 2017-01-11 20:38 +0000
                Re: standard error codes jadill33@gmail.com - 2017-01-11 12:26 -0800
                Re: standard error codes Richard Heathfield <rjh@cpax.org.uk> - 2017-01-11 20:44 +0000
      Re: standard  error codes Keith Thompson <kst-u@mib.org> - 2017-01-09 09:03 -0800
  Re: standard  error codes supercat@casperkitty.com - 2017-01-08 11:40 -0800

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