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Groups > comp.lang.c > #136540

Re: C idioms (Was: >< swap operator)

From scott@slp53.sl.home (Scott Lurndal)
Subject Re: C idioms (Was: >< swap operator)
Newsgroups comp.lang.c
References (5 earlier) <ppis55$hgo$1@dont-email.me> <Zv8vD.110260$OM2.43558@fx37.iad> <ppj4pc$aoj$1@dont-email.me> <PFmvD.59808$un2.54146@fx14.iad> <ppl0d8$5b1$1@dont-email.me>
Message-ID <DiovD.236191$RN2.42671@fx40.iad> (permalink)
Organization UsenetServer - www.usenetserver.com
Date 2018-10-10 14:48 +0000

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David Brown <david.brown@hesbynett.no> writes:
>On 10/10/18 14:56, Scott Lurndal wrote:

>> fork() returns three values:
>> 
>>   -1  (an error occurred)
>>    0  (You are executing as the child)
>>   >0  (You are executing as the parent, and the return value is the child pid).
>> 
>> switch is _perfect_ for this.
>
>So is "if".  (Let's assume the "if" check is for -1, rather than < 0.)
>
>I have seen that people use "switch" in this case.  I have seen people
>claim that "switch" is perfect for the job, or that it is better than
>"if".  I have yet to see the slightest hint of an indication of /why/
>"switch" would be better for the purpose.

Professor Pfeiffer said it best.

  "I generally prefer switches over chains of if...else
   if... else when possible because it more clearly says
   'this is the set of possible alternatives' rather than
   'try this, then this, then this...' (to my eye, anyway)."


>> (as a nit, I really dislike code that tests for less than zero on
>> interfaces that are defined to return -1 on error - which Bart's
>> original example did).
>> 
>
>That is fair enough.  Until someone pointed it out to me, I did not
>realise that -1 was the only possible error result from fork() - I was
>working purely from the original version of the code, with a total
>disregard for whether the function was "fork" or "foo".
>
>Since fork() cannot return any negative value other than -1, the
>semantics of the code will be the same with a check for -1 or < 0.  But
>checking for < 0 is perhaps an indication that the person writing the
>code does not know exactly what fork() can return, and that's not good
>when writing code that uses it.

It lazy programming and also a bad habit;  while the vast majority of unix and POSIX interfaces
indicate error by returning -1 (with errno set), there are a couple that return
-1, but the remaining range of integers are perfectly legal (lseek and mmap
come directly to mind).

This one bit me more than once when porting software to the motorola 88100
and to versions of unix that split the VA space 3:1 user:kernel on x86; both
cases where legal user-mode virtual addresses may have the high-order address bit
set (and there are cases where kernel trampolines or read-only data are exposed
to userland using VA's with the high-order bit set, e.g. for gettimeofday()).

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Thread

>< swap operator skybuck2000@hotmail.com - 2018-08-13 12:53 -0700
  Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-08-13 16:05 -0400
  Re: >< swap operator fir <profesor.fir@gmail.com> - 2018-08-13 13:46 -0700
    Re: >< swap operator Anton Shepelev <anton.txt@g{oogle}mail.com> - 2018-08-14 11:19 +0300
    Re: >< swap operator skybuck2000@hotmail.com - 2018-08-14 06:16 -0700
      Re: >< swap operator bart4858@gmail.com - 2018-08-14 07:50 -0700
        Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-08-14 16:59 +0200
          Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-08-14 10:46 -0700
            Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-08-14 20:03 +0200
              Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-08-14 11:37 -0700
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-08-14 21:16 +0200
          Re: >< swap operator fir <profesor.fir@gmail.com> - 2018-08-14 11:32 -0700
          Re: >< swap operator bart4858@gmail.com - 2018-08-14 16:24 -0700
            Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-08-15 11:32 +0200
        Re: >< swap operator skybuck2000@hotmail.com - 2018-10-01 07:46 -0700
          Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-02 05:20 -0700
            Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-02 13:58 +0100
              Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-02 14:08 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-02 09:16 -0400
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-02 15:35 +0200
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-02 09:43 -0400
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-02 10:51 -0700
              Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-02 09:08 -0400
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-02 15:26 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-02 10:52 -0400
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-02 17:57 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-02 13:27 -0400
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-02 11:52 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-02 20:48 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-02 15:56 -0400
                Re: >< swap operator Thiago Adams <thiago.adams@gmail.com> - 2018-10-02 13:05 -0700
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-02 13:26 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-02 21:36 +0100
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-02 13:47 -0700
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-03 11:14 +0200
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-02 16:37 -0400
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-02 22:02 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-02 17:16 -0400
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-03 11:25 +0200
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-03 10:52 +0100
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-03 14:29 +0200
                Re: >< swap operator Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-10-03 05:52 -0700
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-03 21:31 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-03 16:47 -0400
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-04 03:43 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-03 22:47 -0400
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-04 04:25 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-03 20:44 -0700
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-04 11:53 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-04 05:15 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-04 13:48 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-04 10:56 -0400
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-04 17:47 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-04 11:01 -0700
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-04 22:15 +0200
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-04 16:19 -0400
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-04 21:42 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-04 15:01 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-04 23:59 +0100
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-05 09:54 +0200
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-05 18:03 +0100
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-05 21:08 +0200
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-05 20:31 +0100
                Re: >< swap operator Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2018-10-05 15:59 -0400
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-05 21:18 +0100
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-06 03:51 +0100
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-06 12:19 +0100
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-06 19:49 +0100
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-07 12:25 +0100
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-07 14:19 +0100
                Re: >< swap operator Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-10-07 06:56 -0700
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-07 16:30 +0100
                Re: >< swap operator Wouter Verhelst <w@uter.be> - 2018-10-09 13:17 +0200
                C idioms (Was: >< swap operator) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-09 13:07 +0000
                Re: C idioms (Was: >< swap operator) Bart <bc@freeuk.com> - 2018-10-09 14:27 +0100
                Re: C idioms Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-10 00:05 +0100
                Re: C idioms Bart <bc@freeuk.com> - 2018-10-10 02:03 +0100
                Re: C idioms Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-11 01:05 +0100
                Re: C idioms Bart <bc@freeuk.com> - 2018-10-11 02:09 +0100
                Re: C idioms Bart <bc@freeuk.com> - 2018-10-11 12:39 +0100
                Re: C idioms Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-11 16:24 +0100
                Re: C idioms scott@slp53.sl.home (Scott Lurndal) - 2018-10-11 15:55 +0000
                Re: C idioms Keith Thompson <kst-u@mib.org> - 2018-10-11 09:42 -0700
                Re: C idioms Wouter Verhelst <w@uter.be> - 2018-10-11 19:23 +0200
                Re: C idioms jameskuyper@alumni.caltech.edu - 2018-10-11 11:11 -0700
                Re: C idioms Keith Thompson <kst-u@mib.org> - 2018-10-11 12:05 -0700
                Re: C idioms Bart <bc@freeuk.com> - 2018-10-11 17:53 +0100
                Re: C idioms Keith Thompson <kst-u@mib.org> - 2018-10-11 10:38 -0700
                Re: C idioms Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-12 00:14 +0100
                Re: C idioms Bart <bc@freeuk.com> - 2018-10-11 19:26 +0100
                Re: C idioms (Was: >< swap operator) David Brown <david.brown@hesbynett.no> - 2018-10-09 16:38 +0200
                Re: C idioms (Was: >< swap operator) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-09 15:23 +0000
                Re: C idioms (Was: >< swap operator) David Brown <david.brown@hesbynett.no> - 2018-10-09 20:31 +0200
                Re: C idioms (Was: >< swap operator) Bart <bc@freeuk.com> - 2018-10-09 20:18 +0100
                Re: C idioms (Was: >< swap operator) David Brown <david.brown@hesbynett.no> - 2018-10-09 22:11 +0200
                Re: C idioms (Was: >< swap operator) scott@slp53.sl.home (Scott Lurndal) - 2018-10-09 20:50 +0000
                Re: C idioms (Was: >< swap operator) David Brown <david.brown@hesbynett.no> - 2018-10-09 22:58 +0200
                Re: C idioms (Was: >< swap operator) Bart <bc@freeuk.com> - 2018-10-09 22:34 +0100
                Re: C idioms (Was: >< swap operator) David Brown <david.brown@hesbynett.no> - 2018-10-10 08:10 +0200
                Re: C idioms (Was: >< swap operator) jameskuyper@alumni.caltech.edu - 2018-10-09 14:45 -0700
                Re: C idioms (Was: >< swap operator) David Brown <david.brown@hesbynett.no> - 2018-10-10 08:07 +0200
                Hmmm... (Was: C idioms (Was: >< swap operator)) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-10 07:56 +0000
                Re: Hmmm... (Was: C idioms (Was: >< swap operator)) David Brown <david.brown@hesbynett.no> - 2018-10-10 10:32 +0200
                Re: Hmmm... (Was: C idioms (Was: >< swap operator)) Ike Naar <ike@iceland.freeshell.org> - 2018-10-10 13:44 +0000
                Re: Hmmm... (Was: C idioms (Was: >< swap operator)) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-10 14:52 +0000
                Re: Hmmm... (Was: C idioms (Was: >< swap operator)) Wouter Verhelst <w@uter.be> - 2018-10-10 17:47 +0200
                Re: Hmmm... (Was: C idioms (Was: >< swap operator)) David Brown <david.brown@hesbynett.no> - 2018-10-10 17:18 +0200
                Re: Hmmm... (Was: C idioms (Was: >< swap operator)) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-10 15:22 +0000
                Re: Hmmm... (Was: C idioms (Was: >< swap operator)) David Brown <david.brown@hesbynett.no> - 2018-10-10 23:58 +0200
                Re: Hmmm... Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-10-10 07:51 -0600
                Re: Hmmm... gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-10 14:53 +0000
                Re: Hmmm... David Brown <david.brown@hesbynett.no> - 2018-10-10 17:21 +0200
                Re: C idioms (Was: >< swap operator) scott@slp53.sl.home (Scott Lurndal) - 2018-10-10 12:57 +0000
                Re: C idioms (Was: >< swap operator) James Kuyper <jameskuyper@alumni.caltech.edu> - 2018-10-10 12:29 -0400
                Re: C idioms (Was: >< swap operator) David Brown <david.brown@hesbynett.no> - 2018-10-11 00:07 +0200
                Re: C idioms (Was: >< swap operator) Keith Thompson <kst-u@mib.org> - 2018-10-09 14:50 -0700
                Re: C idioms (Was: >< swap operator) David Brown <david.brown@hesbynett.no> - 2018-10-10 08:13 +0200
                Re: C idioms (Was: >< swap operator) scott@slp53.sl.home (Scott Lurndal) - 2018-10-10 12:56 +0000
                Re: C idioms (Was: >< swap operator) David Brown <david.brown@hesbynett.no> - 2018-10-10 15:55 +0200
                Re: C idioms (Was: >< swap operator) Bart <bc@freeuk.com> - 2018-10-10 15:17 +0100
                Re: C idioms (Was: >< swap operator) scott@slp53.sl.home (Scott Lurndal) - 2018-10-10 14:49 +0000
                Fall-through in switch statements... (Was: C idioms (Was: >< swap operator)) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-10 14:59 +0000
                Re: Fall-through in switch statements... (Was: C idioms (Was: >< swap operator)) Bart <bc@freeuk.com> - 2018-10-10 16:09 +0100
                Re: Fall-through in switch statements... (Was: C idioms (Was: >< swap operator)) nobody@example.org (Scott) - 2018-10-10 17:29 +0000
                Re: C idioms (Was: >< swap operator) Bart <bc@freeuk.com> - 2018-10-10 16:01 +0100
                Re: C idioms (Was: >< swap operator) David Brown <david.brown@hesbynett.no> - 2018-10-10 17:29 +0200
                Re: C idioms (Was: >< swap operator) Wouter Verhelst <w@uter.be> - 2018-10-10 17:55 +0200
                Re: C idioms (Was: >< swap operator) Bart <bc@freeuk.com> - 2018-10-10 17:11 +0100
                Re: C idioms Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-10 23:15 +0100
                Re: C idioms (Was: >< swap operator) David Brown <david.brown@hesbynett.no> - 2018-10-11 00:16 +0200
                Re: C idioms (Was: >< swap operator) Bart <bc@freeuk.com> - 2018-10-10 23:23 +0100
                Re: C idioms (Was: >< swap operator) Keith Thompson <kst-u@mib.org> - 2018-10-10 16:31 -0700
                Re: C idioms (Was: >< swap operator) Keith Thompson <kst-u@mib.org> - 2018-10-10 15:32 -0700
                Re: C idioms (Was: >< swap operator) Keith Thompson <kst-u@mib.org> - 2018-10-10 16:24 -0700
                Re: C idioms (Was: >< swap operator) David Brown <david.brown@hesbynett.no> - 2018-10-11 10:52 +0200
                Re: C idioms Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-10-10 09:59 -0600
                Re: C idioms (Was: >< swap operator) David Brown <david.brown@hesbynett.no> - 2018-10-10 17:26 +0200
                Re: C idioms (Was: >< swap operator) scott@slp53.sl.home (Scott Lurndal) - 2018-10-10 14:48 +0000
                Return values of fork() (Was: C idioms (Was: >< swap operator)) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-10 14:51 +0000
                Re: Return values of fork() (Was: C idioms (Was: >< swap operator)) scott@slp53.sl.home (Scott Lurndal) - 2018-10-10 15:20 +0000
                You know that and I know that, but ... (Was: Return values of fork() (Was: C idioms (Was: >< swap operator))) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-10 15:28 +0000
                Re: You know that and I know that, but ... (Was: Return values of fork() (Was: C idioms (Was: >< swap operator))) David Brown <david.brown@hesbynett.no> - 2018-10-11 00:23 +0200
                Re: You know that and I know that, but ... (Was: Return values of fork() (Was: C idioms (Was: >< swap operator))) scott@slp53.sl.home (Scott Lurndal) - 2018-10-11 13:22 +0000
                Re: You know that and I know that, but ... (Was: Return values of fork() (Was: C idioms (Was: >< swap operator))) David Brown <david.brown@hesbynett.no> - 2018-10-11 15:58 +0200
                Re: You know that and I know that, but ... (Was: Return values of fork() (Was: C idioms (Was: >< swap operator))) scott@slp53.sl.home (Scott Lurndal) - 2018-10-11 14:17 +0000
                Re: You know that and I know that, but ... (Was: Return values of fork() (Was: C idioms (Was: >< swap operator))) David Brown <david.brown@hesbynett.no> - 2018-10-11 16:42 +0200
                Re: You know that and I know that, but ... (Was: Return values of fork() (Was: C idioms (Was: >< swap operator))) Wouter Verhelst <w@uter.be> - 2018-10-11 16:53 +0200
                Re: You know that and I know that, but ... (Was: Return values of fork() (Was: C idioms (Was: >< swap operator))) David Brown <david.brown@hesbynett.no> - 2018-10-11 20:11 +0200
                Re: Return values of fork() (Was: C idioms (Was: >< swap operator)) David Brown <david.brown@hesbynett.no> - 2018-10-11 00:20 +0200
                Re: Return values of fork() (Was: C idioms (Was: >< swap operator)) Keith Thompson <kst-u@mib.org> - 2018-10-10 16:15 -0700
                Re: Return values of fork() Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-10-11 14:42 -0600
                Re: C idioms Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-10-09 16:18 -0600
                Re: C idioms gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-09 22:28 +0000
                Re: C idioms scott@slp53.sl.home (Scott Lurndal) - 2018-10-10 12:58 +0000
                Re: C idioms (Was: >< swap operator) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-10-09 07:48 -0700
                Re: C idioms Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-09 16:42 +0100
                Re: C idioms (Was: >< swap operator) Wouter Verhelst <w@uter.be> - 2018-10-09 19:40 +0200
                Re: C idioms (Was: >< swap operator) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-10-09 12:38 -0700
                Re: C idioms (Was: >< swap operator) Wouter Verhelst <w@uter.be> - 2018-10-09 23:41 +0200
                Re: C idioms (Was: >< swap operator) Wouter Verhelst <w@uter.be> - 2018-10-09 19:38 +0200
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-07 15:04 +0100
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-07 16:37 +0100
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-07 16:58 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-07 12:17 -0400
                Grammar police! (Was: >< swap operator) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-07 20:37 +0000
                Re: >< swap operator jameskuyper@alumni.caltech.edu - 2018-10-07 09:31 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-07 18:09 +0100
                Re: >< swap operator jameskuyper@alumni.caltech.edu - 2018-10-07 14:05 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-07 22:35 +0100
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-08 02:56 +0100
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-08 10:48 +0200
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-08 12:09 +0100
                Re: >< swap operator Ike Naar <ike@iceland.freeshell.org> - 2018-10-08 16:00 +0000
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-08 17:44 +0100
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-08 10:39 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-08 20:08 +0100
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-09 11:22 +0200
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-09 09:25 -0700
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-09 20:43 +0200
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-09 20:15 +0100
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-09 22:26 +0200
                Re: >< swap operator Ike Naar <ike@iceland.freeshell.org> - 2018-10-08 21:09 +0000
                Re: >< swap operator David Kleinecke <dkleinecke@gmail.com> - 2018-10-08 15:18 -0700
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-08 07:55 -0700
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-09 11:24 +0200
                Re: >< swap operator jameskuyper@alumni.caltech.edu - 2018-10-08 07:19 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-08 16:26 +0100
                Re: >< swap operator jameskuyper@alumni.caltech.edu - 2018-10-10 10:59 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-08 19:53 +0100
                Re: >< swap operator James Kuyper <jameskuyper@alumni.caltech.edu> - 2018-10-07 18:00 -0400
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-07 17:10 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-08 01:25 +0100
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-08 02:51 +0100
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-08 11:29 +0100
                Re: >< swap operator mark.bluemel@gmail.com - 2018-10-08 04:41 -0700
                Re: >< swap operator jameskuyper@alumni.caltech.edu - 2018-10-08 07:56 -0700
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-08 08:36 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-08 17:34 +0100
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-08 21:35 +0100
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-08 22:00 +0100
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-09 00:47 +0100
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-09 01:11 +0100
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-09 02:47 +0100
                Re: >< swap operator mark.bluemel@gmail.com - 2018-10-09 00:49 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-09 11:28 +0100
                Re: >< swap operator gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-09 13:00 +0000
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-08 10:28 -0700
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-08 10:49 -0700
                Re: >< swap operator Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-10-07 20:00 -0600
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-06 13:07 -0700
                Re: >< swap operator gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-05 23:35 +0000
                Re: >< swap operator Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-10-06 03:49 -0700
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-06 16:18 +0200
                Re: >< swap operator scott@slp53.sl.home (Scott Lurndal) - 2018-10-06 14:48 +0000
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-06 12:53 -0700
                Re: >< swap operator scott@slp53.sl.home (Scott Lurndal) - 2018-10-07 16:38 +0000
                Re: >< swap operator James Kuyper <jameskuyper@alumni.caltech.edu> - 2018-10-07 15:56 -0400
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-07 16:53 -0700
                Re: >< swap operator David Kleinecke <dkleinecke@gmail.com> - 2018-10-07 17:07 -0700
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-07 17:24 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-08 01:30 +0100
                Re: >< swap operator Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2018-10-07 19:12 -0600
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-06 18:26 +0100
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-06 19:41 +0100
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-06 13:05 -0700
                Re: >< swap operator Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-10-07 02:24 -0700
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-07 12:41 +0200
                100% of the user base... (Was: >< swap operator) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-06 00:22 +0000
                Re: 100% of the user base... (Was: >< swap operator) Bart <bc@freeuk.com> - 2018-10-06 01:55 +0100
                Re: 100% of the user base... (Was: >< swap operator) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-10-06 03:58 -0700
                Re: 100% of the user base... (Was: >< swap operator) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-06 11:51 +0000
                Re: 100% of the user base... (Was: >< swap operator) Bart <bc@freeuk.com> - 2018-10-06 13:09 +0100
                Re: 100% of the user base... (Was: >< swap operator) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-06 05:26 -0700
                Re: 100% of the user base... (Was: >< swap operator) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-10-06 05:40 -0700
                Re: 100% of the user base... (Was: >< swap operator) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-06 12:46 +0000
                Re: 100% of the user base... (Was: >< swap operator) Melzzzzz <Melzzzzz@zzzzz.com> - 2018-10-06 12:46 +0000
                Re: 100% of the user base... (Was: >< swap operator) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-06 12:49 +0000
                Re: 100% of the user base... (Was: >< swap operator) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-06 06:27 -0700
                Re: 100% of the user base... (Was: >< swap operator) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-07 12:47 +0000
                Re: 100% of the user base... (Was: >< swap operator) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-07 09:03 -0400
                Re: 100% of the user base... (Was: >< swap operator) scott@slp53.sl.home (Scott Lurndal) - 2018-10-07 16:47 +0000
                Re: >< swap operator Wouter Verhelst <w@uter.be> - 2018-10-05 10:17 +0200
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-05 09:20 +0200
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-05 10:58 +0100
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-05 12:09 +0200
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-05 03:11 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 07:56 -0400
                Re: >< swap operator Wouter Verhelst <w@uter.be> - 2018-10-05 14:25 +0200
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 08:39 -0400
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-05 15:47 +0100
                Re: >< swap operator Wouter Verhelst <w@uter.be> - 2018-10-05 17:30 +0200
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 11:41 -0400
                Re: >< swap operator Wouter Verhelst <w@uter.be> - 2018-10-05 17:56 +0200
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 12:00 -0400
                Re: >< swap operator Richard Damon <Richard@Damon-Family.org> - 2018-10-05 12:34 -0400
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 12:48 -0400
                Re: >< swap operator Richard Damon <Richard@Damon-Family.org> - 2018-10-05 13:55 -0400
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-05 11:20 -0700
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 14:45 -0400
                Re: >< swap operator Richard Damon <Richard@Damon-Family.org> - 2018-10-05 21:39 -0400
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-07 08:51 -0400
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-11-25 14:18 -0800
                Re: >< swap operator Anton Shepelev <anton.txt@g{oogle}mail.com> - 2018-10-05 15:46 +0300
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 06:05 -0700
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 06:16 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-05 15:09 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 10:18 -0400
                Re: >< swap operator Anton Shepelev <anton.txt@g{oogle}mail.com> - 2018-10-05 17:32 +0300
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 10:34 -0400
                Of course it is crazy! (Was: >< swap operator) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-05 15:17 +0000
                Re: >< swap operator gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-05 18:30 +0000
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 14:48 -0400
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 15:06 -0400
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-05 13:55 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 06:14 -0700
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-05 16:18 +0200
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 10:21 -0400
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-05 17:27 +0200
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-05 15:26 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 10:28 -0400
                Re: >< swap operator gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-05 14:46 +0000
                When pigs fly... (Was: >< swap operator) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-05 16:10 +0000
                Re: >< swap operator Anton Shepelev <anton.txt@g{oogle}mail.com> - 2018-10-05 17:35 +0300
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 10:46 -0400
                Re: >< swap operator gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-05 15:15 +0000
                6K years??? (Was: >< swap operator) gazelle@shell.xmission.com (Kenny McCormack) - 2018-10-05 13:20 +0000
                Re: 6K years??? (Was: >< swap operator) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 09:28 -0400
                Re: 6K years??? (Was: >< swap operator) Wouter Verhelst <w@uter.be> - 2018-10-05 17:53 +0200
                Re: 6K years??? (Was: >< swap operator) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 11:56 -0400
                Re: 6K years??? (Was: >< swap operator) David Brown <david.brown@hesbynett.no> - 2018-10-05 18:17 +0200
                Re: 6K years??? (Was: >< swap operator) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 09:21 -0700
                Re: 6K years??? (Was: >< swap operator) David Brown <david.brown@hesbynett.no> - 2018-10-05 18:50 +0200
                Re: 6K years??? (Was: >< swap operator) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 12:52 -0400
                Re: 6K years??? (Was: >< swap operator) "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-05 13:05 -0400
                Re: 6K years??? (Was: >< swap operator) Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-10-06 03:42 -0700
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-05 15:59 +0200
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-06 03:45 +0100
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-04 11:22 -0700
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-04 20:35 +0100
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-04 13:28 +0100
                Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-10-04 17:59 +0100
                Re: >< swap operator John Bode <jfbode1029@gmail.com> - 2018-10-04 09:56 -0700
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-03 06:03 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-03 14:37 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-03 09:51 -0400
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-03 15:39 +0200
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-03 10:05 -0400
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-03 10:09 -0400
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-03 16:22 +0200
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-03 10:29 -0400
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-03 20:52 +0200
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-03 14:57 -0400
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-02 16:06 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-03 00:09 +0100
                Re: >< swap operator Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2018-10-02 19:21 -0400
                Re: >< swap operator David Brown <david.brown@hesbynett.no> - 2018-10-03 11:21 +0200
                Re: >< swap operator Thiago Adams <thiago.adams@gmail.com> - 2018-10-02 13:43 -0700
                Re: >< swap operator scott@slp53.sl.home (Scott Lurndal) - 2018-10-02 21:01 +0000
                Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-02 14:29 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-02 22:37 +0100
                Re: >< swap operator Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-10-03 05:07 -0700
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-02 21:01 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-02 16:06 -0400
                Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-02 21:45 +0100
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-02 17:09 -0400
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-02 16:11 -0400
                Re: >< swap operator "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2018-10-02 16:22 -0400
                Re: >< swap operator Thiago Adams <thiago.adams@gmail.com> - 2018-10-02 13:17 -0700
                Re: >< swap operator Thiago Adams <thiago.adams@gmail.com> - 2018-10-02 13:24 -0700
                Re: >< swap operator scott@slp53.sl.home (Scott Lurndal) - 2018-10-02 15:04 +0000
                Re: >< swap operator Niles Rogoff <eternal-september@niles.xyz> - 2018-10-03 18:28 +0000
  Re: >< swap operator Thiago Adams <thiago.adams@gmail.com> - 2018-08-14 11:50 -0700
  Re: >< swap operator Siri Cruise <chine.bleu@yahoo.com> - 2018-08-14 17:07 -0700
    Re: >< swap operator fir <profesor.fir@gmail.com> - 2018-08-15 02:22 -0700
      Re: >< swap operator fir <profesor.fir@gmail.com> - 2018-08-15 02:34 -0700
        Re: >< swap operator fir <profesor.fir@gmail.com> - 2018-08-15 03:09 -0700
      Re: >< swap operator fir <profesor.fir@gmail.com> - 2018-08-15 03:24 -0700
        Re: >< swap operator fir <profesor.fir@gmail.com> - 2018-08-15 04:51 -0700
          Re: >< swap operator fir <profesor.fir@gmail.com> - 2018-08-15 05:06 -0700
      Re: >< swap operator Siri Cruise <chine.bleu@yahoo.com> - 2018-08-15 04:21 -0700
        Re: >< swap operator Ben Bacarisse <ben.usenet@bsb.me.uk> - 2018-08-15 14:43 +0100
          Re: >< swap operator fir <profesor.fir@gmail.com> - 2018-08-15 07:08 -0700
          Re: >< swap operator Bart <bc@freeuk.com> - 2018-08-15 16:52 +0100
        Re: >< swap operator Ike Naar <ike@iceland.freeshell.org> - 2018-08-15 15:51 +0000
  Re: >< swap operator John Bode <jfbode1029@gmail.com> - 2018-10-01 14:59 -0700
    Re: >< swap operator Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2018-10-02 03:06 -0700
    Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-02 11:43 +0100
      Re: >< swap operator John Bode <jfbode1029@gmail.com> - 2018-10-02 07:27 -0700
        Re: >< swap operator Bart <bc@freeuk.com> - 2018-10-02 15:43 +0100
          Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-02 11:01 -0700
        Re: >< swap operator Keith Thompson <kst-u@mib.org> - 2018-10-02 10:54 -0700
          Re: >< swap operator Thiago Adams <thiago.adams@gmail.com> - 2018-10-02 12:39 -0700
  Re: >< swap operator skybuck2000@hotmail.com - 2018-10-10 18:10 -0700
  Re: >< swap operator skybuck2000@hotmail.com - 2018-10-10 18:24 -0700

csiph-web