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Re: "C Is The Greenest Programming Language" by: Chris Lott

Subject Re: "C Is The Greenest Programming Language" by: Chris Lott
Newsgroups comp.lang.c, comp.lang.c++
References <snh51g$c1q$1@dont-email.me> <sniqts$6ks$1@dont-email.me> <snj6e1$l3e$1@gioia.aioe.org> <Ww9nJ.30462$KV.13562@fx14.iad> <snlmsh$jnc$1@gioia.aioe.org>
From Richard Damon <Richard@Damon-Family.org>
Message-ID <t7unJ.62044$np6.13355@fx46.iad> (permalink)
Organization Forte - www.forteinc.com
Date 2021-11-24 11:54 -0500

Cross-posted to 2 groups.

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On 11/24/21 10:48 AM, DozingDog@thekennel.co wrote:
> On Tue, 23 Nov 2021 12:28:12 -0500
> Richard Damon <Richard@Damon-Family.org> wrote:
>> On 11/23/21 11:55 AM, DozingDog@thekennel.co wrote:
>>> On Tue, 23 Nov 2021 14:39:08 +0100
>>> Bonita Montero <Bonita.Montero@gmail.com> wrote:
>>>> Developing in C is a magnitude more effort than in C++, and if you've
>>>
>>> That depends on the problem. If you're writing code that needs to store a
>>> lot of structured data then C wouldn't be your first choice of language. But
>>> if you're writing something that simply interfaces with system calls then
>>> there's probably not much if any extra effort in using C over C++.
>>>
>>
>> I would disagree. With a decent compiler, C code can generate close to
>> assembly level optimizations for most problems. (Maybe it doesn't have
> 
> So can a C++ compiler and with modern additions such constexpr C++ can optimise
> in ways that C simply can't.
> 
>> ANYTHING in terms of data-structures that another language can generate,
>> you can generate in C.
> 
> True, but you have to re-invent the wheel each time because frankly the level
> of complex data structure library support in the standard library in C is
> woeful. Eg the hsearch() and bsearch() functionality are frankly rubbish (only
> 1 tree/hash per process!) and Berkeley DB is a PITA to use.

Right, I never said it was the BEST way, especially if you include 
programmer productivity.

If your goal is ABSOLUTELY TOP CPU EFFICIENCY, then 'standard libraries' 
become just optional (use only if it IS the best for YOUR job).

Yes, this might mean 3 years of programming to say a millisecond of 
execution, but it still puts the hand crafted code ahead of the higher 
level langauge in RAW efficiency.

> 
>> The big disadvantage is that YOU as the programmer need to deal with a
>> lot of the issues rather than to compiler doing things for you, but that
>> is exactly why you can do things possibly more efficiently then the
>> compiler. You could have always generated the same algorithm that the
>> compiler did.
> 
> I doubt I could for example write a RB tree system better than that implemented
> in the C++ STL. It has 30 years of refining behind it.

So you can directly implement that algorithm in C. yes, it gets messier, 
but you CAN do it.

And, yes, it also means you need to research (or look at implementations 
and 'borrow') the best methods. Lots of programmer effort to get the 
greenest code.

> 
>> Now, if you want to talk of the efficiency of WRITING the code, (as
>> opposed to executing it) all this power it gives you is a negative,
>> which seems to be what you are talking about.
> 
> Indeed, but your argument that C always produces more efficient code than C++
> probably hasn't been true for 20 years.
> 

FLAW: Not ALWAYS, but CAN, big difference.

Yes, C++ idioms can generate complex code faster than C, and allows 
things to be put into libraries that C can't readily do, and thus an 
expert can right the library and 'lend' that expertise to an ordinary 
code by them using the library. A custom coded C version can do just as 
well, because you can express the same instruction sequences in C as 
were generated in C++, you just need to be or explicit about it.


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Thread

"C Is The Greenest Programming Language" by: Chris Lott Lynn McGuire <lynnmcguire5@gmail.com> - 2021-11-22 16:19 -0600
  Re: "C Is The Greenest Programming Language" by: Chris Lott "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-11-22 14:58 -0800
    Re: "C Is The Greenest Programming Language" by: Chris Lott Juha Nieminen <nospam@thanks.invalid> - 2021-11-23 07:10 +0000
      Re: "C Is The Greenest Programming Language" by: Chris Lott "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-11-23 13:12 -0800
        Re: "C Is The Greenest Programming Language" by: Chris Lott Juha Nieminen <nospam@thanks.invalid> - 2021-11-24 10:54 +0000
          Re: "C Is The Greenest Programming Language" by: Chris Lott Philipp Klaus Krause <pkk@spth.de> - 2021-11-24 12:01 +0100
            Re: "C Is The Greenest Programming Language" by: Chris Lott David Brown <david.brown@hesbynett.no> - 2021-11-24 13:58 +0100
      Re: "C Is The Greenest Programming Language" by: Chris Lott "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-11-23 13:23 -0800
  Re: "C Is The Greenest Programming Language" by: Chris Lott Richard Damon <Richard@Damon-Family.org> - 2021-11-22 18:25 -0500
    Re: "C Is The Greenest Programming Language" by: Chris Lott Juha Nieminen <nospam@thanks.invalid> - 2021-11-23 07:21 +0000
      Re: "C Is The Greenest Programming Language" by: Chris Lott Thiago Adams <thiago.adams@gmail.com> - 2021-11-23 04:50 -0800
      Re: "C Is The Greenest Programming Language" by: Chris Lott Guillaume <message@bottle.org> - 2021-11-23 17:56 +0100
        Re: "C Is The Greenest Programming Language" by: Chris Lott Juha Nieminen <nospam@thanks.invalid> - 2021-11-24 10:55 +0000
      Re: "C Is The Greenest Programming Language" by: Chris Lott Lynn McGuire <lynnmcguire5@gmail.com> - 2021-11-23 19:00 -0600
        Re: "C Is The Greenest Programming Language" by: Chris Lott scott@slp53.sl.home (Scott Lurndal) - 2021-11-24 16:04 +0000
    Re: "C Is The Greenest Programming Language" by: Chris Lott Philipp Klaus Krause <pkk@spth.de> - 2021-11-24 11:43 +0100
  Re: "C Is The Greenest Programming Language" by: Chris Lott om@iki.fi (Otto J. Makela) - 2021-11-23 14:17 +0200
    Re: "C Is The Greenest Programming Language" by: Chris Lott DozingDog@thekennel.co - 2021-11-23 16:53 +0000
      Re: "C Is The Greenest Programming Language" by: Chris Lott om@iki.fi (Otto J. Makela) - 2021-11-24 11:40 +0200
        Re: "C Is The Greenest Programming Language" by: Chris Lott DozingDog@thekennel.co - 2021-11-24 15:49 +0000
    Re: "C Is The Greenest Programming Language" by: Chris Lott Lynn McGuire <lynnmcguire5@gmail.com> - 2021-11-23 19:01 -0600
      Re: "C Is The Greenest Programming Language" by: Chris Lott om@iki.fi (Otto J. Makela) - 2021-11-24 11:33 +0200
        Re: "C Is The Greenest Programming Language" by: Chris Lott Lynn McGuire <lynnmcguire5@gmail.com> - 2021-11-24 15:28 -0600
  Re: "C Is The Greenest Programming Language" by: Chris Lott Bonita Montero <Bonita.Montero@gmail.com> - 2021-11-23 14:39 +0100
    Re: "C Is The Greenest Programming Language" by: Chris Lott DozingDog@thekennel.co - 2021-11-23 16:55 +0000
      Re: "C Is The Greenest Programming Language" by: Chris Lott Richard Damon <Richard@Damon-Family.org> - 2021-11-23 12:28 -0500
        Re: "C Is The Greenest Programming Language" by: Chris Lott Bonita Montero <Bonita.Montero@gmail.com> - 2021-11-23 19:05 +0100
          Re: "C Is The Greenest Programming Language" by: Chris Lott Richard Damon <Richard@Damon-Family.org> - 2021-11-23 13:41 -0500
            Re: "C Is The Greenest Programming Language" by: Chris Lott Bonita Montero <Bonita.Montero@gmail.com> - 2021-11-23 19:53 +0100
              Re: "C Is The Greenest Programming Language" by: Chris Lott Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2021-11-23 16:31 -0800
              Re: "C Is The Greenest Programming Language" by: Chris Lott Richard Damon <Richard@Damon-Family.org> - 2021-11-23 21:27 -0500
                Re: "C Is The Greenest Programming Language" by: Chris Lott Bonita Montero <Bonita.Montero@gmail.com> - 2021-11-24 18:32 +0100
                Re: "C Is The Greenest Programming Language" by: Chris Lott Richard Damon <Richard@Damon-Family.org> - 2021-11-24 12:54 -0500
                Re: "C Is The Greenest Programming Language" by: Chris Lott Bonita Montero <Bonita.Montero@gmail.com> - 2021-11-24 20:52 +0100
                Re: "C Is The Greenest Programming Language" by: Chris Lott Richard Damon <Richard@Damon-Family.org> - 2021-11-24 15:13 -0500
                Re: "C Is The Greenest Programming Language" by: Chris Lott Bonita Montero <Bonita.Montero@gmail.com> - 2021-11-25 19:13 +0100
          Re: "C Is The Greenest Programming Language" by: Chris Lott Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2021-11-23 16:25 -0800
        Re: "C Is The Greenest Programming Language" by: Chris Lott DozingDog@thekennel.co - 2021-11-24 15:48 +0000
          Re: "C Is The Greenest Programming Language" by: Chris Lott Richard Damon <Richard@Damon-Family.org> - 2021-11-24 11:54 -0500
            Re: "C Is The Greenest Programming Language" by: Chris Lott DozingDog@thekennel.co - 2021-11-25 11:19 +0000
              Re: "C Is The Greenest Programming Language" by: Chris Lott Juha Nieminen <nospam@thanks.invalid> - 2021-11-25 11:46 +0000
                Re: "C Is The Greenest Programming Language" by: Chris Lott DozingDog@thekennel.co - 2021-11-25 15:57 +0000
              Re: "C Is The Greenest Programming Language" by: Chris Lott Richard Damon <Richard@Damon-Family.org> - 2021-11-25 07:04 -0500
                Re: "C Is The Greenest Programming Language" by: Chris Lott DozingDog@thekennel.co - 2021-11-25 15:59 +0000
                Re: "C Is The Greenest Programming Language" by: Chris Lott Thiago Adams <thiago.adams@gmail.com> - 2021-11-26 03:37 -0800
  Re: "C Is The Greenest Programming Language" by: Chris Lott Manfred <noname@add.invalid> - 2021-11-23 16:03 +0100
    Re: "C Is The Greenest Programming Language" by: Chris Lott gazelle@shell.xmission.com (Kenny McCormack) - 2021-11-23 15:50 +0000
      Re: "C Is The Greenest Programming Language" by: Chris Lott David Brown <david.brown@hesbynett.no> - 2021-11-23 17:51 +0100
        Re: "C Is The Greenest Programming Language" by: Chris Lott DozingDog@thekennel.co - 2021-11-23 17:00 +0000
          Re: "C Is The Greenest Programming Language" by: Chris Lott Richard Damon <Richard@Damon-Family.org> - 2021-11-23 12:36 -0500
          Re: "C Is The Greenest Programming Language" by: Chris Lott David Brown <david.brown@hesbynett.no> - 2021-11-23 19:24 +0100
            Re: "C Is The Greenest Programming Language" by: Chris Lott Richard Damon <Richard@Damon-Family.org> - 2021-11-23 13:50 -0500
              Re: "C Is The Greenest Programming Language" by: Chris Lott David Brown <david.brown@hesbynett.no> - 2021-11-23 20:02 +0100
        Re: "C Is The Greenest Programming Language" by: Chris Lott Manfred <noname@add.invalid> - 2021-11-23 20:59 +0100
          Re: "C Is The Greenest Programming Language" by: Chris Lott Bart <bc@freeuk.com> - 2021-11-23 20:50 +0000
            Re: "C Is The Greenest Programming Language" by: Chris Lott Ian Collins <ian-news@hotmail.com> - 2021-11-24 11:18 +1300
              Re: "C Is The Greenest Programming Language" by: Chris Lott Bart <bc@freeuk.com> - 2021-11-23 22:58 +0000
            Re: "C Is The Greenest Programming Language" by: Chris Lott David Brown <david.brown@hesbynett.no> - 2021-11-23 23:46 +0100
              Re: "C Is The Greenest Programming Language" by: Chris Lott Bart <bc@freeuk.com> - 2021-11-24 13:59 +0000
                Re: "C Is The Greenest Programming Language" by: Chris Lott antispam@math.uni.wroc.pl - 2021-12-11 13:25 +0000
                Re: "C Is The Greenest Programming Language" by: Chris Lott Bart <bc@freeuk.com> - 2021-12-11 14:54 +0000
            Re: "C Is The Greenest Programming Language" by: Chris Lott Manfred <noname@add.invalid> - 2021-11-25 12:12 +0100
          Re: "C Is The Greenest Programming Language" by: Chris Lott David Brown <david.brown@hesbynett.no> - 2021-11-23 23:35 +0100
            Re: "C Is The Greenest Programming Language" by: Chris Lott Manfred <noname@add.invalid> - 2021-11-24 15:30 +0100
              Re: "C Is The Greenest Programming Language" by: Chris Lott Bart <bc@freeuk.com> - 2021-11-24 14:43 +0000
      Re: "C Is The Greenest Programming Language" by: Chris Lott Manfred <noname@add.invalid> - 2021-11-23 20:29 +0100
    Re: "C Is The Greenest Programming Language" by: Chris Lott Bart <bc@freeuk.com> - 2021-11-23 16:14 +0000
    Re: "C Is The Greenest Programming Language" by: Chris Lott Philipp Klaus Krause <pkk@spth.de> - 2021-11-24 11:56 +0100
      Re: "C Is The Greenest Programming Language" by: Chris Lott Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-11-24 10:14 -0800
        Re: "C Is The Greenest Programming Language" by: Chris Lott David Brown <david.brown@hesbynett.no> - 2021-11-24 19:55 +0100
          Re: "C Is The Greenest Programming Language" by: Chris Lott Philipp Klaus Krause <pkk@spth.de> - 2021-11-24 21:13 +0100
        Re: "C Is The Greenest Programming Language" by: Chris Lott Philipp Klaus Krause <pkk@spth.de> - 2021-11-24 21:11 +0100
      Re: "C Is The Greenest Programming Language" by: Chris Lott Philipp Klaus Krause <pkk@spth.de> - 2021-11-24 21:17 +0100
        Re: "C Is The Greenest Programming Language" by: Chris Lott Bart <bc@freeuk.com> - 2021-11-24 20:42 +0000
          Re: "C Is The Greenest Programming Language" by: Chris Lott Philipp Klaus Krause <pkk@spth.de> - 2021-11-24 23:25 +0100
          Re: "C Is The Greenest Programming Language" by: Chris Lott antispam@math.uni.wroc.pl - 2021-12-11 14:07 +0000
            Re: "C Is The Greenest Programming Language" by: Chris Lott Bart <bc@freeuk.com> - 2021-12-11 18:46 +0000
              [OT] Lisp.  Was: "C Is The Greenest Programming Language" by: Chris Lott Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-12-11 20:11 +0000
                Re: "C Is The Greenest Programming Language" Dave Dunfield <dave.dunfield@gmail.com> - 2021-12-13 17:59 -0800
                Re: "C Is The Greenest Programming Language" Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-12-14 03:18 +0000
                Re: "C Is The Greenest Programming Language" Dave Dunfield <dave.dunfield@gmail.com> - 2021-12-16 10:57 -0800
                Re: "C Is The Greenest Programming Language" Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-12-16 22:03 +0000
                Re: "C Is The Greenest Programming Language" Dave Dunfield <dave.dunfield@gmail.com> - 2021-12-20 02:40 -0800
                Re: "C Is The Greenest Programming Language" Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-12-20 12:05 +0000
  Re: "C Is The Greenest Programming Language" by: Chris Lott "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-11-24 14:12 -0800
    Re: "C Is The Greenest Programming Language" by: Chris Lott Manfred <noname@add.invalid> - 2021-11-25 12:00 +0100
  Re: "C Is The Greenest Programming Language" by: Chris Lott Paavo Helde <eesnimi@osa.pri.ee> - 2021-12-05 22:51 +0200
    Re: "C Is The Greenest Programming Language" by: Chris Lott "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-12-05 19:20 -0800
      Re: "C Is The Greenest Programming Language" by: Chris Lott Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2021-12-06 01:52 -0800
        Re: "C Is The Greenest Programming Language" by: Chris Lott "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-12-06 12:19 -0800
          Re: "C Is The Greenest Programming Language" by: Chris Lott "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-12-06 12:27 -0800
    Re: "C Is The Greenest Programming Language" by: Chris Lott Manfred <noname@add.invalid> - 2021-12-06 12:28 +0100
      Re: "C Is The Greenest Programming Language" by: Chris Lott Paavo Helde <eesnimi@osa.pri.ee> - 2021-12-06 13:40 +0200
    Re: "C Is The Greenest Programming Language" by: Chris Lott Bonita Montero <Bonita.Montero@gmail.com> - 2021-12-06 16:21 +0100

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