Re: C wish list

From	David Brown <david.brown@hesbynett.no>
Newsgroups	comp.lang.c
Subject	Re: C wish list
Date	2019-03-22 11:30 +0100
Organization	A noiseless patient Spider
Message-ID	<q72dfr$1c0$1@dont-email.me> (permalink)
References	(4 earlier) <Q2zkE.172267$1p7.137601@fx05.am4> <q70jg2$ec1$1@z-news.wcss.wroc.pl> <18RkE.296542$DH4.255445@fx24.am4> <q70vsp$avo$1@dont-email.me> <i_TkE.658776$OGY.405413@fx08.am4>

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On 21/03/2019 23:11, Bart wrote:
> On 21/03/2019 21:32, David Brown wrote:
>> On 21/03/2019 19:57, Bart wrote:
> 
>>> Left-shift instructions are not signed; in both cases (signed or
>>> unsigned left operand) you are shifting in 0s from the right.
>>>
>>
>> C has a " << " operator.  It does not have left-shift instructions. 
>> You appear to be mixing up C and assembly again.
> 
> And you appear to be talking nonsense:
> 

No, I am talking C.

> 6.5.7: Bitwise SHIFT operators.
> 
> 6.5.7p4: The result of E1<<E2 is E1 left-shifted E2 bit positions;
> vacated bits are filled with zeros.
> 

This is followed immediately by the details of the evaluation:

"""
If E1 has an unsigned type, the value of the result is E1 × 2 ^ E2 ,
reduced modulo one more than the maximum value representable in the
result type. If E1 has a signed type and nonnegative value, and E1 × 2 ^
E2 is representable in the result type, then that is the resulting
value; otherwise, the behavior is undefined.
"""

The " << " operator acts as a left shift, filling in with zero bits, in
the conditions for which it is valid.  It is those conditions that
concern us here.  In particular, "1 << 31" is /not/ defined to
left-shift signed int 1 by 31 bits.

And no matter how you look at it, there is certainly no way you can
claim C has a "left-shift instruction".  C does not have "instructions"
at all - that is an assembly concept.

> K&R2 A7.8: The result of E1<<E2 is E1 (interpreted as a bit-pattern)
> left-shifted E2 bits.
> 

Since we are talking about C, not history, I was quoting from the C
standards.  (C11 to be precise - it has not changed in C17.)  The C
standards have given gradually more details about C and the behaviour of
real compilers, compared to the sometimes vague information in K&R and
older standards.

> Clearly this was intended to be correlate closely with the bit-shift
> instructions to be found in most processors. And is equivalent to the
> way the way it works in all languages that have bit-level shifts.

Oh, there is no doubt that the operation was designed to fit well with
existing hardware - where it made sense.  The same applies to many (or
most) features of C.  But you are making several fundamental mistakes here.

First, you are thinking that C was intended to copy the behaviour of the
hardware.  It was not, and never has been.

Second, you are thinking that the hardware was designed to give useful
and correct results in all cases.  It was not, and never has been.  The
hardware is designed to give correct and useful results for a useful set
of inputs.  It usually gives predictable results on other inputs - the
choices here are based on whatever is simpler and cheaper in the
hardware, or whatever can be reused for other purposes.

No one /ever/ made a cpu "left shift signed integer" instruction that
intentionally gave the result of -0x8000 when shifting +0x4000 by one
bit.  (I'm using 16-bit ranges here, because they are simpler numbers.)
 The reason that this is the usual behaviour, is that the same hardware,
indeed the same instruction code, can be used for a /logical/ left
shift.  It is not because anyone thought it made sense to multiply a
positive number by 2 and get a negative number.  (The same applies to
two's complement representation.)

Third, you are incorrect to think other languages with shift operators
work like you think.  For signed integer overflow in general, few
languages define the behaviour to be wrapping - most either check the
result (giving an exception or error message of some sort), leave it as
undefined, or have types that support larger values safely.  Sometimes
this is configurable by compiler switches (as it is for C, for many
compilers).

> 
> Why are trying to pretend this C knows nothing about bitwise shifts and
> only understands multiply and divide?

I am telling you what the standards say - the definition of the C
language.  It has bitwise shift operators, whose results are defined in
terms of multiplication and division.

> 
> Because bit-shifting sits uncomfortably in your ideal model of mathematics?
> 

Not at all.

> C is just a trumped assembler with easier syntax and better portability.

It is harder to imagine a more incorrect description of C.  And it is
frustrating that you /still/ stick to that debunked myth.

You are wrong.  Totally, completely.

This has been explained countless times in this group.  It must take an
extraordinary strength of will to remain so wrong, and so ignorant, over
such a long time.

> 
> Bit-shifting starts to become harder with higher-level language features
> or more advanced types (it is badly defined with my decimal arbitrary
> precision library for example).
> 
> But for machine-sized 32-bit binary values?
> 
> 
>> So Auntie Spam here is correct.  It is not (AFAIK) the main reason why
>> 1 << 31 is not defined (for 32-bit int), but it is a convenient bonus.
> 
> No, we don't know whether anti-spam is correct or, as we don't yet know
> his point about 64- vs 32-bit registers for 32-bit operations.

Yes, we do - and he is right.

I don't know whether real compilers for real targets actually use 64-bit
operations when asked for a 32-bit shift.  (I strongly suspect there are
some that do, though it is unlikely for x86-64.)  But he is right that
this is a possibility.

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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