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Groups > comp.lang.c > #142508

Re: C wish list

From James Kuyper <jameskuyper@alumni.caltech.edu>
Newsgroups comp.lang.c
Subject Re: C wish list
Date 2019-03-27 07:49 -0400
Organization A noiseless patient Spider
Message-ID <q7fo14$1au$1@dont-email.me> (permalink)
References (20 earlier) <MeXlE.159950$C55.14908@fx33.iad> <lnzhpjbpwi.fsf@kst-u.example.com> <yi3mE.327183$tS5.37996@fx48.iad> <d1ca3040-f59f-4424-92e9-e5931815425f@googlegroups.com> <R5CmE.28259$434.19472@fx29.iad>

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On 3/26/19 23:28, Richard Damon wrote:
> On 3/25/19 2:22 PM, James Kuyper wrote:
>> On Monday, March 25, 2019 at 7:53:10 AM UTC-4, Richard Damon wrote:
>>> On 3/24/19 11:21 PM, Keith Thompson wrote:
>>>> Richard Damon <Richard@Damon-Family.org> writes:
>>>>> On 3/24/19 12:41 PM, David Brown wrote:
>>>> [...]
>>>>>> The other commonly cited reason for undefined behaviour on overflow,
>>>>>> that it would vary between machines, is less convincing to me.  If that
>>>>>> were a major point, I think the standards would say that integer
>>>>>> overflow gives either an implementation-defined result or raises an
>>>>>> implementation-defined signal - that would cover pretty much any system.
>>>>>
>>>>> My understanding was that the committee didn't use that phrase in the
>>>>> initial standard, behavior had a fairly simple hierarchy:
>>>>>
>>>>> Defined Behavior: the Standard spelled out exact what should happen.
>>>>>
>>>>> Implementation Defined Behavior: The Standard provides a (normally)
>>>>> explicit set of options which the implementation documents which is chosen.
>>
>> The set is often implicit, and often very large, in some cases infinite in size. I've seen both of those facts cause a bit of confusion.
>>
> 
> Some things that need to be 'Implementation Defined' (like
> representations) indeed can have a large space of possibilities, but
> that isn't 'behavior'. Most cases of actual behavior the options are
> relatively few options (perhaps making reference to an implementation
> defined representation). For behaviors the biggest set I can think of is
> the implementation defined value for assigning a larger value into a
> smaller signed value, which technically is the choice of a mapping of
> every possible larger value into a listing of the chosen smaller value,
> but even in that form it is finite, and generally actually described as
> a simple formula.

Every unspecified value that has a lower bound but no upper bound offers
a technically infinite range of possibilities, though for most of the
best examples, the actual range of plausible values is quite small.
Examples: CHAR_BIT, sizeof(long double _Complex), DBL_MAX.
Other cases are more difficult. Would you care to give me the size of a
finite set of possibilities permitted for any of the following
unspecified behaviors:

> — The manner and timing of static initialization (5.1.2).
> — The termination status returned to the hosted environment if the return type of main
> is not compatible with int (5.1.2.2.3).
> — The values of objects that are neither lock-free atomic objects nor of type volatile
> sig_atomic_t and the state of the floating-point environment, when the
> processing of the abstract machine is interrupted by receipt of a signal (5.1.2.3).
> — The behavior of the display device if a printing character is written when the active
> position is at the final position of a line (5.2.2).

That's just the first four items listed in Appendix J.1; there's lots
more where they came from.
The absolute topper is #pragma:

> A preprocessing directive of the form
> # pragma pp-tokens opt new-line
> where the preprocessing token STDC does not immediately follow pragma in the
> directive (prior to any macro replacement) 174) causes the implementation to behave in an
> implementation-defined manner. The behavior might cause translation to fail or cause the
> translator or the resulting program to behave in a non-conforming manner.

Is there any behavior NOT allowed by that description )so long as it's
correctly documented)?

But I only said that the set of permitted behaviors was infinite in some
cases. As I've already said, in most cases it's finite, and in many
cases it's quite small.

>>>>> Unspecified Behavior: The Standard provieds a (normally) explicit set of
>>>>> options of which the implementation can choose between, but doesn't need
>>>>> to be consistent about or document. (Like the order the parts of an
>>>>> expression are evaluated, absent defined sequence points)
>>
>> Your wording could give the impression that you're describing 4 distinct categories. implementation-defined behavior is defined as "unspecified behavior where each implementation documents how the choice is made" (3.4.1p1), and is therefore a subset of unspecified behavior.
> 
> I do consider it a distinct category, maybe not a unique as between
> Defined and Undefined, but with Implementation Defined behavior, I can
> code based on that documentation an KNOW what will happen, and know that
> it will be consistently that way. With unspecified behavior that is
> impossible. Now, without access to that documentation, I can't really
> utilize that advantage, so you can't write 'portable' code that takes
> advantage of the behavior being implementation defined, but you can
> write implementation dependent code that does. (One limitation is you
> may or may not be able to put something in the code to confirm that you
> are running on an implementation that matches the documentation you
> depended on).

You're free to think of two different categories, but the standard
doesn't name one of them. The proper way to describe those categories
using standard C terminology is

1. Unspecified behavior for which no documentation is required.
2. Unspecified behavior for which documentation is required ==
implementation-defined behavior.

As far at the standard is concerned, those are just two subsets of
unspecified behavior. It's incorrect to use the unqualified term
"unspecified behavior" to describe only the first category.

It's a nit-pick, to be sure - but clearly stating what you're talking
about greatly improves communication.

...
>>> But since one of the enumerated possibilities wasn't of the complexity
>>> of "an implemented-defined result or raise an implementation-defined
>>> signal", the option of implementation-defined wasn't available for
>>> signed overflow.
>>
>> I'm not sure I understand that comment. Signed overflow during conversion does have implementation-defined behavior. There's a choice of options, and a requirement to document which choice is made. The fact that the options permitted by the standard can be organized into two groups, and it's convenient to describe each of those groups separately, doesn't change the fact that this matches the definition for "implementation-defined behavior".
>>
> 
> Since the Standards committee hadn't thought of that wording, and since
> some machines did trap on some values they couldn't specify an
> implementation defined result, as that didn't fit, so rather than force
> some machines to not be able to have efficient C implementations, they
> left the result as simply undefined.

No, in C89, the result was an implementation-defined value (3.2.1.2).
Adding the raising of an implementation-defined signal was added in C99
(6.3.1.3p3), and that is still the status today. At no point since the
language was standardized has the behavior of conversion of an integer
to a signed integer ever been undefined.

K&R C never uses the terms "undefined behavior" or "the behavior is
undefined". It uses "undefined value", but most of the other uses of
"undefined" in K&R C refer to things that are now described as
"unspecified". Many things in K&R C could be described in modern terms
as "undefined by omission of any explicit definition" (4p2), but
"undefined behavior" just wasn't a concept used in that version of the
language.

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Thread

C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-19 14:58 -0700
  Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-19 15:58 -0700
    Re: C wish list Wouter Verhelst <w@uter.be> - 2019-03-20 08:27 +0200
      Re: C wish list Spiros Bousbouras <spibou@gmail.com> - 2019-03-20 06:54 +0000
        Re: C wish list Spiros Bousbouras <spibou@gmail.com> - 2019-03-20 07:00 +0000
        Re: C wish list Wouter Verhelst <w@uter.be> - 2019-03-20 13:26 +0200
          Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-20 08:17 -0400
            Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-20 13:20 -0700
      Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-20 01:43 -0700
      Re: C wish list scott@slp53.sl.home (Scott Lurndal) - 2019-03-20 13:11 +0000
    Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-20 09:17 -0700
      Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-20 09:34 -0700
        Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-20 10:06 -0700
          Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-20 10:47 -0700
            Re: C wish list Bart <bc@freeuk.com> - 2019-03-20 17:59 +0000
              Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-20 11:12 -0700
              Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-20 13:47 -0700
            Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-20 11:46 -0700
              Re: C wish list Bart <bc@freeuk.com> - 2019-03-20 19:21 +0000
              Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-20 12:31 -0700
                Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-20 12:41 -0700
                Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-20 14:34 -0700
              Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-20 13:52 -0700
          Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-20 11:04 -0700
          Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-20 13:43 -0700
  C wish list fir is a sexy shemale <cdalten@gmail.com> - 2019-03-19 16:57 -0700
  Re: C wish list Spiros Bousbouras <spibou@gmail.com> - 2019-03-20 05:45 +0000
    Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-20 09:22 -0700
      Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-20 14:02 -0700
        Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-20 22:55 +0100
          Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-20 15:15 -0700
            Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-20 23:56 +0000
              Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-20 17:52 -0700
            Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-21 11:08 +0100
      Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-20 22:54 +0100
        Re: C wish list Bart <bc@freeuk.com> - 2019-03-20 22:22 +0000
          Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-21 15:29 +0100
            Re: C wish list Bart <bc@freeuk.com> - 2019-03-21 14:47 +0000
              Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-21 22:26 +0100
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-21 22:18 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-22 09:28 +0100
          Re: C wish list antispam@math.uni.wroc.pl - 2019-03-21 18:00 +0000
            Re: C wish list Bart <bc@freeuk.com> - 2019-03-21 18:57 +0000
              Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-21 22:32 +0100
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-21 22:11 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-22 11:30 +0100
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-22 11:39 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-22 14:26 +0100
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-22 14:40 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-22 16:10 +0100
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-22 16:05 +0000
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-22 11:54 -0700
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-22 19:19 +0000
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-22 12:29 -0700
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-22 19:36 +0000
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-22 13:54 -0700
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-23 13:33 +0000
                Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-23 14:46 +0000
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-23 15:00 +0000
                Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-23 15:24 +0000
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-23 18:23 +0000
                Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-23 22:40 +0000
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-23 22:59 +0000
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-23 16:24 -0700
                Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-24 01:57 +0000
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-24 11:14 +0000
                Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-24 14:01 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-24 16:11 +0100
                Re: C wish list Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-03-25 07:34 -0700
                Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-25 17:11 +0000
                Re: C wish list Richard Damon <Richard@Damon-Family.org> - 2019-03-23 11:41 -0400
                Re: C wish list antispam@math.uni.wroc.pl - 2019-03-23 19:52 +0000
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-23 22:30 +0000
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-23 16:07 -0700
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-24 16:42 +0100
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-24 16:12 +0000
                Re: C wish list antispam@math.uni.wroc.pl - 2019-03-24 17:59 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-24 22:19 +0100
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-24 22:13 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-25 01:27 +0100
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-23 16:51 +0100
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-23 18:34 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-24 16:48 +0100
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-23 13:51 -0700
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-24 17:05 +0100
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-23 12:41 -0700
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-23 22:55 +0000
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-23 16:20 -0700
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-23 23:40 +0000
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-23 18:35 -0700
                Re: C wish list Richard Damon <Richard@Damon-Family.org> - 2019-03-23 20:19 -0400
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-24 12:06 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-24 17:41 +0100
                Re: C wish list Richard Damon <Richard@Damon-Family.org> - 2019-03-24 22:42 -0400
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-24 20:21 -0700
                Re: C wish list Richard Damon <Richard@Damon-Family.org> - 2019-03-25 07:53 -0400
                Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-25 11:22 -0700
                Re: C wish list Richard Damon <Richard@Damon-Family.org> - 2019-03-26 23:28 -0400
                Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-27 07:49 -0400
                Re: C wish list Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-04-10 08:35 -0700
                Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-04-10 09:18 -0700
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-24 17:23 +0100
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-24 16:51 +0000
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-24 16:38 -0700
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-25 01:32 +0100
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-25 00:51 +0000
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-24 17:57 -0700
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-25 01:05 +0000
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-24 18:35 -0700
                Re: C wish list Spiros Bousbouras <spibou@gmail.com> - 2019-03-25 06:19 +0000
                Re: C wish list antispam@math.uni.wroc.pl - 2019-03-24 18:51 +0000
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-24 19:08 +0000
                Re: C wish list Ike Naar <ike@sdf.lonestar.org> - 2019-03-24 19:36 +0000
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-24 19:45 +0000
                Re: C wish list Ike Naar <ike@sdf.lonestar.org> - 2019-03-24 19:49 +0000
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-24 20:10 +0000
                Re: C wish list Ike Naar <ike@sdf.lonestar.org> - 2019-03-25 06:43 +0000
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-25 11:17 +0000
                Re: C wish list Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2019-03-25 06:22 -0700
                Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-25 17:01 +0000
                Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-25 00:44 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-24 17:09 +0100
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-24 16:12 -0700
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-23 13:47 +0100
                Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-23 14:24 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-23 17:18 +0100
                Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-23 17:53 +0000
                On "high-levelness" of languages (was "C wish list") Spiros Bousbouras <spibou@gmail.com> - 2019-03-24 00:23 +0000
                Re: On "high-levelness" of languages (was "C wish list") Keith Thompson <kst-u@mib.org> - 2019-03-23 18:37 -0700
                Re: On "high-levelness" of languages (was "C wish list") David Brown <david.brown@hesbynett.no> - 2019-03-24 22:22 +0100
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-24 21:58 +0100
                Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-25 01:12 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-25 09:48 +0100
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-23 14:25 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-23 18:06 +0100
                Re: C wish list scott@slp53.sl.home (Scott Lurndal) - 2019-03-23 17:59 +0000
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-22 11:46 -0700
                Re: C wish list Spiros Bousbouras <spibou@gmail.com> - 2019-03-22 19:59 +0000
                Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-22 20:30 -0700
                Re: C wish list Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-03-25 22:33 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-23 18:12 +0100
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-23 13:00 -0700
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-24 22:27 +0100
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-23 23:34 +0000
                Re: C wish list antispam@math.uni.wroc.pl - 2019-03-24 17:43 +0000
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-24 19:44 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-24 22:55 +0100
                Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-24 20:37 -0700
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-24 21:54 -0700
                Re: C wish list Spiros Bousbouras <spibou@gmail.com> - 2019-03-25 06:11 +0000
                Re: C wish list Richard Damon <Richard@Damon-Family.org> - 2019-03-25 07:59 -0400
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-25 14:26 +0100
                Re: C wish list Spiros Bousbouras <spibou@gmail.com> - 2019-03-25 15:59 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-25 22:04 +0100
                Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-25 14:54 -0700
                Re: C wish list Spiros Bousbouras <spibou@gmail.com> - 2019-03-25 22:35 +0000
                Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-25 21:41 -0400
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-26 09:44 +0100
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-26 09:42 +0100
                Re: C wish list Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-04-10 08:32 -0700
                Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-25 12:53 -0700
                Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-25 13:20 -0700
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-25 13:40 -0700
                Re: C wish list Richard Damon <Richard@Damon-Family.org> - 2019-03-26 07:28 -0400
                Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-26 09:42 -0700
                Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-26 13:08 -0400
                Re: C wish list Ian Collins <ian-news@hotmail.com> - 2019-03-27 08:57 +1300
                Re: C wish list Richard Damon <Richard@Damon-Family.org> - 2019-03-26 22:53 -0400
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-27 10:27 +0100
                Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-28 08:04 -0700
                Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-28 09:03 -0700
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-28 16:26 +0000
                Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-28 13:02 -0700
                Re: C wish list Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-04-09 04:25 -0700
                Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-04-09 07:03 -0700
                Re: C wish list scott@slp53.sl.home (Scott Lurndal) - 2019-04-09 14:31 +0000
                Re: C wish list Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-04-10 08:27 -0700
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-25 13:05 -0700
                Re: C wish list Spiros Bousbouras <spibou@gmail.com> - 2019-03-25 06:06 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-25 09:39 +0100
                Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-25 21:26 -0400
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-26 09:55 +0100
                Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-26 08:57 -0400
                Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-26 15:22 +0000
                Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-26 13:10 -0400
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-25 19:08 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-25 22:24 +0100
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-25 22:08 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-26 10:20 +0100
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-26 11:58 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-26 16:49 +0100
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-26 16:23 +0000
                Re: C wish list Lowell Gilbert <lgusenet@be-well.ilk.org> - 2019-03-26 13:24 -0400
                Re: C wish list Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2019-03-26 10:31 -0700
                Re: C wish list Robert Wessel <robertwessel2@yahoo.com> - 2019-03-26 13:03 -0500
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-26 11:53 -0700
                Re: C wish list scott@slp53.sl.home (Scott Lurndal) - 2019-03-26 19:59 +0000
                Re: C wish list Ian Collins <ian-news@hotmail.com> - 2019-03-27 09:24 +1300
                Re: C wish list scott@slp53.sl.home (Scott Lurndal) - 2019-03-26 20:54 +0000
                Re: C wish list Ian Collins <ian-news@hotmail.com> - 2019-03-27 09:58 +1300
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-26 13:43 -0700
                Re: C wish list antispam@math.uni.wroc.pl - 2019-03-26 22:49 +0000
                Re: C wish list Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-03-27 21:02 +0000
                Re: C wish list antispam@math.uni.wroc.pl - 2019-03-28 18:04 +0000
                Re: C wish list Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-03-28 19:53 +0000
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-26 18:25 +0000
                Re: C wish list antispam@math.uni.wroc.pl - 2019-03-26 14:47 +0000
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-26 18:14 +0000
                Re: C wish list antispam@math.uni.wroc.pl - 2019-03-26 22:31 +0000
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-27 00:08 +0000
                Re: C wish list antispam@math.uni.wroc.pl - 2019-03-28 18:45 +0000
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-21 15:13 -0700
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-21 22:29 +0000
                Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-21 23:51 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-22 11:37 +0100
                Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-22 07:54 -0400
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-22 13:15 +0000
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-22 14:31 +0100
                Re: C wish list Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-03-21 22:55 -0700
                Re: C wish list Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2019-03-22 07:17 -0700
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-22 16:16 +0100
                Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-22 12:06 -0700
              Re: C wish list antispam@math.uni.wroc.pl - 2019-03-23 16:59 +0000
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-23 21:36 +0000
                Re: C wish list antispam@math.uni.wroc.pl - 2019-03-24 16:16 +0000
                Re: C wish list Bart <bc@freeuk.com> - 2019-03-24 20:25 +0000
                Re: C wish list antispam@math.uni.wroc.pl - 2019-03-25 20:00 +0000
                Re: C wish list Spiros Bousbouras <spibou@gmail.com> - 2019-03-24 21:56 +0000
    Re: C wish list Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-03-21 22:39 -0700
  Re: C wish list Spiros Bousbouras <spibou@gmail.com> - 2019-03-20 06:10 +0000
  Re: C wish list Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-03-20 06:57 +0000
  Re: C wish list Philipp Klaus Krause <pkk@spth.de> - 2019-03-20 11:06 +0100
    Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-20 09:24 -0700
    Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-20 13:15 -0700
      Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-21 15:38 +0100
        Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-21 09:17 -0700
          Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-21 09:58 -0700
            Re: C wish list scott@slp53.sl.home (Scott Lurndal) - 2019-03-21 17:22 +0000
            Re: C wish list Robert Wessel <robertwessel2@yahoo.com> - 2019-03-21 23:44 -0500
          Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-21 12:43 -0700
  Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-20 16:53 +0100
    Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-20 09:30 -0700
      Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-20 22:58 +0100
        Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-20 15:41 -0700
          Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-20 20:12 -0400
          Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-21 16:00 +0100
            Re: C wish list Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2019-03-21 08:10 -0700
              Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-21 22:35 +0100
              Re: C wish list jacobnavia <jacob@jacob.remcomp.fr> - 2019-03-22 10:32 +0100
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-22 12:25 +0100
                Re: C wish list jacobnavia <jacob@jacob.remcomp.fr> - 2019-03-22 18:15 +0100
                Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-24 15:29 +0100
                Re: C wish list Spiros Bousbouras <spibou@gmail.com> - 2019-03-24 22:03 +0000
            Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-21 10:43 -0700
              Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-21 15:09 -0400
              Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-21 12:45 -0700
            Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-21 10:53 -0700
              Re: C wish list James Kuyper <jameskuyper@alumni.caltech.edu> - 2019-03-21 15:18 -0400
              Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-21 12:55 -0700
              Re: C wish list Spiros Bousbouras <spibou@gmail.com> - 2019-03-21 19:55 +0000
    Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-20 13:29 -0700
      Re: C wish list scott@slp53.sl.home (Scott Lurndal) - 2019-03-20 21:12 +0000
      Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-20 23:02 +0100
    Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-20 20:32 +0000
      Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-20 23:08 +0100
        Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-21 00:25 +0000
          Re: C wish list Jorgen Grahn <grahn+nntp@snipabacken.se> - 2019-03-21 07:12 +0000
            Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-21 16:13 +0100
          Re: C wish list David Brown <david.brown@hesbynett.no> - 2019-03-21 16:11 +0100
            Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-21 17:04 +0000
              Re: C wish list Keith Thompson <kst-u@mib.org> - 2019-03-21 13:02 -0700
                Re: C wish list Ben Bacarisse <ben.usenet@bsb.me.uk> - 2019-03-21 22:03 +0000
  Re: C wish list Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-03-23 07:25 -0700
    Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-03-23 11:38 -0700
      Re: C wish list Tim Rentsch <tr.17687@z991.linuxsc.com> - 2019-03-25 07:59 -0700
        Re: C wish list Howard Chu <highlandsun@gmail.com> - 2019-04-16 11:13 -0700

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