Re: C wish list

From	David Brown <david.brown@hesbynett.no>
Newsgroups	comp.lang.c
Subject	Re: C wish list
Date	2019-03-26 09:55 +0100
Organization	A noiseless patient Spider
Message-ID	<q7cpdf$bmp$1@dont-email.me> (permalink)
References	(13 earlier) <q78fku$7qn$1@z-news.wcss.wroc.pl> <x6RlE.311897$7F3.31387@fx30.am4> <q78uda$he3$1@dont-email.me> <1d54b052-49e7-4aee-a4cc-a394a0a77886@googlegroups.com> <q7bv3c$qfa$1@dont-email.me>

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On 26/03/2019 02:26, James Kuyper wrote:
> On 3/24/19 23:37, Howard Chu wrote:
> ...
>> I vaguely recall (but don't have a specific reference now) that the rules
>> of "effective types" in C makes it impossible to write your own malloc() or
>> memcpy() implementations in conforming C.
> 
> I hope you do remember the details - to the best of my knowledge a
> memcpy() equivalent can be trivially written in strictly conforming C.

Can a "my_memcpy" function copy the effective type of an object, in the
way the library "memcpy" does?  It looks to me that this will work as
long as "my_memcpy" works by character - but that is looking at C11
(6.5p6).  I don't know if it is the same in earlier standards.

(Also, does this in fact matter?  Suppose you have an "int" and some
memory with no declared type.  If you use memcpy to copy the int into
this space, the object now has effective type "int" and can only be
accessed as an "int".  If your copy function did not copy the type "int"
to the new object, then you can still access it as an "int" - it takes
its effective type from the access.)

> 
>> The rule that pointers from different objects can't be compared is somewhat
>> meaningless. The malloc and free functions need to be able to compare their
>> arguments against their heap boundaries, at least.
> 
> I think you mean "realloc", not "malloc". malloc()'s only argument
> cannot meaningfully compared with the heap boundaries.
> 
> realloc() and free() don't need to check their arguments against their
> heap boundaries - they're entitled to assume that their argument points
> into the heap, and to fail catastrophically if that isn't the case. That
> fact greatly simplifies their implementation on some systems.

Perhaps he means that the argument to malloc needs to be used in
expressions that are then compared to the heap boundaries (such as
adding it to a pointer to free memory, then comparing that result to the
heap boundary).

> 
>> ... And for that to be legal
>> for them to do, the heap itself must be a single character array. But if the
>> heap *is* a single character array, that means that all pointers returned
>> from malloc are actually part of a single object, and thus should be legal
>> to compare to each other, regardless of what kind of structure/type the
>> caller uses them for.
> 
> The heap need not be a single block of memory - it's entirely feasible
> for it to consist of a series of disconnected blocks. On a
> segment-offset architecture, the malloc() family could keep a list of
> specific segments that they're currently using, and search that list
> when needed - they need not be adjacent segments - the concept of
> "adjacent segments" need not even be meaningful on that platform.
> 
> Some real world implementations of malloc() round every allocation up to
> a power of two, and allocate each power of two from a different memory
> pool. This simplifies some of the logic. They can tell what the size of
> an allocation is by determining which pool it's from.
> 
>> Meanwhile, on a system where the heap is implemented by something like mmap()
>> which can return discontiguous memory regions on subsequent calls, the C spec
>> says you're screwed, you can't legally compare the pointers from different
>> map regions. Which is utter nonsense.
> 
> This "nonsense" was written because there are real-world machines where
> pointers to different blocks of memory cannot be meaningfully give a
> total ordering.
> 

(And before we get the usual complaints about "no one has used such
dinosaurs in decades", there are current microcontrollers that have
multiple independent memory spaces.)

>> One of the essential traits of K&R C was that you could implement the language
>> in itself. With modern C you can't do that any more.
> 
> You could implement a C compiler in C - that's not quite the same thing.
> The C standard library contains many functions, such as fopen(), that do
> things that the language itself provides no method of implementing, at
> least not in portable code. They are implemented either by writing
> non-portable C code, or in some other language, such as assembler.
>

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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