Re: rubeyes: realloc(ptr, 0) is UB?

From	Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups	comp.lang.c
Subject	Re: rubeyes: realloc(ptr, 0) is UB?
Date	2024-01-26 12:20 -0800
Organization	A noiseless patient Spider
Message-ID	<86le8bdey8.fsf@linuxsc.com> (permalink)
References	(12 earlier) <20240119132728.888@kylheku.com> <86edebhrl6.fsf@linuxsc.com> <20240121092107.281@kylheku.com> <867cjxe3y2.fsf@linuxsc.com> <20240125102335.169@kylheku.com>

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Kaz Kylheku <433-929-6894@kylheku.com> writes:

> On 2024-01-25, Tim Rentsch <tr.17687@z991.linuxsc.com> wrote:
>
>> Your understanding of the term "implementation-defined" is flawed.
>
> No it isn't.
>
> Obviously, an implementation cannot vaccilate among different
> choices of how malloc(0) should behave.  [...]

I think you've lost track of what point it is you are trying
to make.  I know I have.

> I apologize for not making all this reasoning clearer in my
> posting.

I recommend adopting the habit of re-reading (and revising) what
you have written, before posting it.  I try to do this at least
once before posting, and often two or three times.  A technique
that can be very effective is speaking the text out loud as you
read it.

A piece of advice that appears in most of the essays I have read
about writing is something like, The essence of good writing is
re-writing.  Another one that I like (this one from Fred Brooks)
is, Easy writing makes hard reading, and vice versa.  Perhaps
these suggestions will help you avoid confusing writing in the
future.

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Re: *rubeyes*: realloc(ptr, 0) is UB? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-01-19 20:29 +0000
  Re: *rubeyes*: realloc(ptr, 0) is UB? Kaz Kylheku <433-929-6894@kylheku.com> - 2024-01-19 21:35 +0000
    Re: *rubeyes*: realloc(ptr, 0) is UB? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-01-21 03:08 -0800
      Re: *rubeyes*: realloc(ptr, 0) is UB? Kaz Kylheku <433-929-6894@kylheku.com> - 2024-01-21 17:32 +0000
        Re: *rubeyes*: realloc(ptr, 0) is UB? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-01-25 09:08 -0800
          Re: *rubeyes*: realloc(ptr, 0) is UB? Kaz Kylheku <433-929-6894@kylheku.com> - 2024-01-25 18:49 +0000
            Re: *rubeyes*: realloc(ptr, 0) is UB? Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-01-25 11:35 -0800
              Re: *rubeyes*: realloc(ptr, 0) is UB? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-01-25 11:45 -0800
                Re: *rubeyes*: realloc(ptr, 0) is UB? Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-01-25 13:40 -0800
                Re: *rubeyes*: realloc(ptr, 0) is UB? David Brown <david.brown@hesbynett.no> - 2024-01-26 09:27 +0100
                Re: *rubeyes*: realloc(ptr, 0) is UB? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-01-29 13:21 -0800
            Re: *rubeyes*: realloc(ptr, 0) is UB? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-01-26 12:20 -0800
              Re: *rubeyes*: realloc(ptr, 0) is UB? Kaz Kylheku <433-929-6894@kylheku.com> - 2024-01-28 18:17 +0000
                Re: *rubeyes*: realloc(ptr, 0) is UB? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-01-31 01:02 -0800
            Re: *rubeyes*: realloc(ptr, 0) is UB? James Kuyper <jameskuyper@alumni.caltech.edu> - 2024-01-28 20:09 -0500
  Re: *rubeyes*: realloc(ptr, 0) is UB? Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-01-19 13:37 -0800
    Re: *rubeyes*: realloc(ptr, 0) is UB? Kaz Kylheku <433-929-6894@kylheku.com> - 2024-01-19 21:50 +0000
      Re: *rubeyes*: realloc(ptr, 0) is UB? Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-01-19 14:16 -0800
        Re: *rubeyes*: realloc(ptr, 0) is UB? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-01-21 03:25 -0800
      Re: *rubeyes*: realloc(ptr, 0) is UB? bart <bc@freeuk.com> - 2024-01-21 11:55 +0000
        Re: *rubeyes*: realloc(ptr, 0) is UB? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-01-21 09:41 -0800
        Re: *rubeyes*: realloc(ptr, 0) is UB? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-01-21 12:22 -0800
          Re: *rubeyes*: realloc(ptr, 0) is UB? bart <bc@freeuk.com> - 2024-01-21 20:34 +0000
            Re: *rubeyes*: realloc(ptr, 0) is UB? David Brown <david.brown@hesbynett.no> - 2024-01-21 21:54 +0100
              Re: *rubeyes*: realloc(ptr, 0) is UB? Kaz Kylheku <433-929-6894@kylheku.com> - 2024-01-21 21:20 +0000
                Re: *rubeyes*: realloc(ptr, 0) is UB? David Brown <david.brown@hesbynett.no> - 2024-01-22 09:20 +0100
              Re: *rubeyes*: realloc(ptr, 0) is UB? Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-01-21 13:31 -0800
                Re: *rubeyes*: realloc(ptr, 0) is UB? Kaz Kylheku <433-929-6894@kylheku.com> - 2024-01-21 21:49 +0000
                Re: *rubeyes*: realloc(ptr, 0) is UB? bart <bc@freeuk.com> - 2024-01-21 22:09 +0000
                Re: *rubeyes*: realloc(ptr, 0) is UB? Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2024-01-21 23:49 +0000
                Re: *rubeyes*: realloc(ptr, 0) is UB? David Brown <david.brown@hesbynett.no> - 2024-01-22 09:24 +0100
                Re: *rubeyes*: realloc(ptr, 0) is UB? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-01-22 22:09 +0000
                Re: *rubeyes*: realloc(ptr, 0) is UB? David Brown <david.brown@hesbynett.no> - 2024-01-23 09:28 +0100
              Re: *rubeyes*: realloc(ptr, 0) is UB? bart <bc@freeuk.com> - 2024-01-21 21:37 +0000
              Re: *rubeyes*: realloc(ptr, 0) is UB? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-01-21 17:05 -0800
                Re: *rubeyes*: realloc(ptr, 0) is UB? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-01-21 17:09 -0800
            Re: *rubeyes*: realloc(ptr, 0) is UB? Kaz Kylheku <433-929-6894@kylheku.com> - 2024-01-21 21:16 +0000
              Re: *rubeyes*: realloc(ptr, 0) is UB? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-01-21 17:14 -0800
            Re: *rubeyes*: realloc(ptr, 0) is UB? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-01-21 17:04 -0800
              Re: *rubeyes*: realloc(ptr, 0) is UB? Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2024-01-22 02:05 +0000
                Re: *rubeyes*: realloc(ptr, 0) is UB? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-01-21 18:37 -0800
              Re: *rubeyes*: realloc(ptr, 0) is UB? bart <bc@freeuk.com> - 2024-01-22 11:55 +0000
                Re: *rubeyes*: realloc(ptr, 0) is UB? bart <bc@freeuk.com> - 2024-01-22 12:00 +0000
                Re: *rubeyes*: realloc(ptr, 0) is UB? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-01-22 22:08 +0000
          Re: *rubeyes*: realloc(ptr, 0) is UB? Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2024-01-21 20:51 +0000
        Re: *rubeyes*: realloc(ptr, 0) is UB? Richard Kettlewell <invalid@invalid.invalid> - 2024-01-22 10:22 +0000
          Re: *rubeyes*: realloc(ptr, 0) is UB? bart <bc@freeuk.com> - 2024-01-22 11:27 +0000
            Re: *rubeyes*: realloc(ptr, 0) is UB? Kaz Kylheku <433-929-6894@kylheku.com> - 2024-01-22 19:36 +0000
              Re: *rubeyes*: realloc(ptr, 0) is UB? kalevi@kolttonen.fi (Kalevi Kolttonen) - 2024-01-22 20:40 +0000
              Re: *rubeyes*: realloc(ptr, 0) is UB? bart <bc@freeuk.com> - 2024-01-22 22:14 +0000
                Re: *rubeyes*: realloc(ptr, 0) is UB? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-01-22 14:38 -0800
                Re: *rubeyes*: realloc(ptr, 0) is UB? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-01-22 14:40 -0800
              Re: *rubeyes*: realloc(ptr, 0) is UB? scott@slp53.sl.home (Scott Lurndal) - 2024-01-22 22:45 +0000
                Re: *rubeyes*: realloc(ptr, 0) is UB? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-01-22 14:54 -0800
            Re: *rubeyes*: realloc(ptr, 0) is UB? Richard Kettlewell <invalid@invalid.invalid> - 2024-01-22 23:05 +0000
      Re: *rubeyes*: realloc(ptr, 0) is UB? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-01-21 04:04 -0800
        Re: *rubeyes*: realloc(ptr, 0) is UB? Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2024-01-22 12:36 +0000
          Re: *rubeyes*: realloc(ptr, 0) is UB? Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-01-22 08:23 -0800
          Re: *rubeyes*: realloc(ptr, 0) is UB? Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2024-01-22 08:27 -0800
          Re: *rubeyes*: realloc(ptr, 0) is UB? scott@slp53.sl.home (Scott Lurndal) - 2024-01-22 16:34 +0000
            Re: *rubeyes*: realloc(ptr, 0) is UB? Lawrence D'Oliveiro <ldo@nz.invalid> - 2024-01-24 04:42 +0000
          Re: *rubeyes*: realloc(ptr, 0) is UB? Spiros Bousbouras <spibou@gmail.com> - 2024-01-22 19:23 +0000
          Re: *rubeyes*: realloc(ptr, 0) is UB? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-01-22 20:20 -0800
    Re: *rubeyes*: realloc(ptr, 0) is UB? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-01-21 06:55 -0800

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