Re: std::map advocacy

From	Michael S <already5chosen@yahoo.com>
Newsgroups	comp.lang.c++
Subject	Re: std::map advocacy
Date	2024-04-09 18:12 +0300
Organization	A noiseless patient Spider
Message-ID	<20240409181252.0000479f@yahoo.com> (permalink)
References	(16 earlier) <uv0sd6$3hbhr$1@dont-email.me> <uv1vco$3pmea$1@dont-email.me> <uv2rm5$3g4p$1@dont-email.me> <20240409132722.0000414d@yahoo.com> <uv3euj$83fj$1@dont-email.me>

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On Tue, 9 Apr 2024 15:13:54 +0200
David Brown <david.brown@hesbynett.no> wrote:

> On 09/04/2024 12:27, Michael S wrote:
> > On Tue, 9 Apr 2024 09:45:08 +0200
> > David Brown <david.brown@hesbynett.no> wrote:
> >   
> 
> >> Typically, however, small embedded systems and hard real-time
> >> systems have little need for things like std::map<> or
> >> std::vector<>, so it is not much of an issue in practice.  But it
> >> is one of the reasons why I rule out such containers for use in
> >> the code I write. 
> > 
> > You're arguing about unimportant theoretical possibilities.
> >   
> 
> Perhaps you don't understand about what "real-time" means.  Real-time 
> development does not care about theoretical possibilities of
> different implementations, because you fix your system at /one/
> implementation. But it /does/ care about theoretical possibilities of
> what could happen in that one system.  I don't care if some
> implementation uses Pink-Green trees to get O(1) average speed, or
> another one uses Purple-Brown trees to get O(n ^ 27) space
> complexity.  I only care about the implementation I am using.  And I
> don't care about its average speed, I only care about its worst-case
> spaces and times.
> 
> I don't care if it does 99.999% of its operations within 1µs, I care
> if I can /guarantee/ that /every/ case is completed with 1 second.
> 
> Sometimes in real-time systems you will prefer a linear search
> through a list, because it is easier to be sure of your limits and
> the correctness of the code in all cases - with the simpler code,
> it's likely that your worst case times are better than many kinds of
> tree.
> 
> And the same applies to space considerations - the worst case is the 
> only relevant case.
> 

You continue to argue about unimportant theoretical possibilities.
std::map is *never* Pink-Green or Purple-Brown, It is either
Guibas-Sedgewick, better known as red-black or, very rarely, 
Adelson-Velsky-Landis.
The only Brown connection that I can think about is that Sedgewick got
his Master degree from Brown University.

Thread

Ain't that beautiful ? Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-04 20:11 +0200
  Re: Ain't that beautiful ? Michael S <already5chosen@yahoo.com> - 2024-04-04 21:55 +0300
    Re: Ain't that beautiful ? Sam <sam@email-scan.com> - 2024-04-04 20:00 -0400
      Re: Ain't that beautiful ? scott@slp53.sl.home (Scott Lurndal) - 2024-04-05 00:21 +0000
        Re: Ain't that beautiful ? Michael S <already5chosen@yahoo.com> - 2024-04-05 17:44 +0300
          Re: Ain't that beautiful ? Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-05 17:27 +0200
            Re: Ain't that beautiful ? Michael S <already5chosen@yahoo.com> - 2024-04-05 18:37 +0300
              Re: Ain't that beautiful ? Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-05 18:04 +0200
                Re: Ain't that beautiful ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-04-06 15:55 -0700
                Re: Ain't that beautiful ? Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-07 08:28 +0200
                Re: Ain't that beautiful ? scott@slp53.sl.home (Scott Lurndal) - 2024-04-07 15:51 +0000
                Re: Ain't that beautiful ? Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-07 19:35 +0200
                Re: Ain't that beautiful ? "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-04-07 12:21 -0700
    Re: Ain't that beautiful ? Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-05 05:05 +0200
      Re: Ain't that beautiful ? Michael S <already5chosen@yahoo.com> - 2024-04-05 17:52 +0300
        Re: Ain't that beautiful ? Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-05 17:26 +0200
          Re: Ain't that beautiful ? scott@slp53.sl.home (Scott Lurndal) - 2024-04-05 20:00 +0000
            Re: Ain't that beautiful ? Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-05 22:29 +0200
              Re: Ain't that beautiful ? scott@slp53.sl.home (Scott Lurndal) - 2024-04-05 21:29 +0000
                Re: Ain't that beautiful ? Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-06 09:06 +0200
                Re: Ain't that beautiful ? Paavo Helde <eesnimi@osa.pri.ee> - 2024-04-06 17:29 +0300
                Re: Ain't that beautiful ? scott@slp53.sl.home (Scott Lurndal) - 2024-04-06 14:56 +0000
                Re: Ain't that beautiful ? Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-06 18:34 +0200
                Re: Ain't that beautiful ? wij <wyniijj5@gmail.com> - 2024-04-07 03:00 +0800
                Re: Ain't that beautiful ? Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-07 08:28 +0200
                Re: Ain't that beautiful ? wij <wyniijj5@gmail.com> - 2024-04-08 07:47 +0800
                Re: Ain't that beautiful ? Michael S <already5chosen@yahoo.com> - 2024-04-07 15:25 +0300
                Re: Ain't that beautiful ? Michael S <already5chosen@yahoo.com> - 2024-04-07 16:00 +0300
                Re: Ain't that beautiful ? David Brown <david.brown@hesbynett.no> - 2024-04-07 16:06 +0200
                Re: Ain't that beautiful ? Michael S <already5chosen@yahoo.com> - 2024-04-07 18:37 +0300
                Re: Ain't that beautiful ? scott@slp53.sl.home (Scott Lurndal) - 2024-04-07 15:58 +0000
                Re: Ain't that beautiful ? David Brown <david.brown@hesbynett.no> - 2024-04-07 18:00 +0200
                Re: Ain't that beautiful ? Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-07 19:38 +0200
                std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-07 18:38 +0300
                Re: std::map advocacy David Brown <david.brown@hesbynett.no> - 2024-04-07 18:06 +0200
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-07 19:35 +0300
                Re: std::map advocacy David Brown <david.brown@hesbynett.no> - 2024-04-08 11:29 +0200
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-08 13:34 +0300
                Re: std::map advocacy wij <wyniijj5@gmail.com> - 2024-04-08 19:18 +0800
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-08 16:32 +0300
                Re: std::map advocacy wij <wyniijj5@gmail.com> - 2024-04-09 08:40 +0800
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-09 12:48 +0300
                Re: std::map advocacy Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-09 13:16 +0200
                Re: std::map advocacy David Brown <david.brown@hesbynett.no> - 2024-04-08 15:30 +0200
                Re: std::map advocacy scott@slp53.sl.home (Scott Lurndal) - 2024-04-08 17:19 +0000
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-09 00:47 +0300
                Re: std::map advocacy scott@slp53.sl.home (Scott Lurndal) - 2024-04-08 23:00 +0000
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-09 02:20 +0300
                Re: std::map advocacy scott@slp53.sl.home (Scott Lurndal) - 2024-04-09 15:22 +0000
                Re: std::map advocacy David Brown <david.brown@hesbynett.no> - 2024-04-09 09:11 +0200
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-09 13:12 +0300
                Re: std::map advocacy David Brown <david.brown@hesbynett.no> - 2024-04-09 15:01 +0200
                Re: std::map advocacy Richard Damon <richard@damon-family.org> - 2024-04-08 07:10 -0400
                Re: std::map advocacy David Brown <david.brown@hesbynett.no> - 2024-04-08 15:45 +0200
                Re: std::map advocacy James Kuyper <jameskuyper@alumni.caltech.edu> - 2024-04-08 19:42 -0400
                Re: std::map advocacy David Brown <david.brown@hesbynett.no> - 2024-04-09 09:45 +0200
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-09 13:27 +0300
                Re: std::map advocacy David Brown <david.brown@hesbynett.no> - 2024-04-09 15:13 +0200
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-09 18:12 +0300
                Re: std::map advocacy David Brown <david.brown@hesbynett.no> - 2024-04-09 18:22 +0200
                Re: std::map advocacy James Kuyper <jameskuyper@alumni.caltech.edu> - 2024-04-10 02:24 -0400
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-11 00:07 +0300
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-11 16:18 +0300
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-11 16:39 +0300
                Re: std::map advocacy Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-11 16:21 +0200
                Re: std::map advocacy Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-11 15:31 +0200
                Re: std::map advocacy wij <wyniijj5@gmail.com> - 2024-04-11 22:40 +0800
                Re: std::map advocacy David Brown <david.brown@hesbynett.no> - 2024-04-11 16:55 +0200
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-11 16:13 +0300
                Re: std::map advocacy Paavo Helde <eesnimi@osa.pri.ee> - 2024-04-11 18:18 +0300
                Re: std::map advocacy David Brown <david.brown@hesbynett.no> - 2024-04-11 09:57 +0200
                Re: std::map advocacy David Brown <david.brown@hesbynett.no> - 2024-04-11 13:47 +0200
                Re: std::map advocacy Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-11 14:04 +0200
                Re: std::map advocacy wij <wyniijj5@gmail.com> - 2024-04-11 19:25 +0800
                Re: std::map advocacy scott@slp53.sl.home (Scott Lurndal) - 2024-04-07 16:09 +0000
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-07 19:48 +0300
                Re: std::map advocacy Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-07 19:45 +0200
                Re: std::map advocacy Paavo Helde <eesnimi@osa.pri.ee> - 2024-04-08 16:37 +0300
                Re: std::map advocacy Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-07 19:44 +0200
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-08 11:15 +0300
                Re: std::map advocacy Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-08 14:09 +0200
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-08 16:26 +0300
                Re: std::map advocacy Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-08 16:54 +0200
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-08 20:52 +0300
                Re: std::map advocacy Michael S <already5chosen@yahoo.com> - 2024-04-09 00:17 +0300
                Re: std::map advocacy Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-09 07:34 +0200
                Re: Ain't that beautiful ? Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-07 16:39 +0200
                Re: Ain't that beautiful ? Michael S <already5chosen@yahoo.com> - 2024-04-07 18:41 +0300
                Re: Ain't that beautiful ? Bonita Montero <Bonita.Montero@gmail.com> - 2024-04-07 19:36 +0200
                Re: Ain't that beautiful ? Paavo Helde <eesnimi@osa.pri.ee> - 2024-04-07 18:25 +0300

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