Re: Differences between C and C++

From	Juha Nieminen <nospam@thanks.invalid>
Newsgroups	comp.lang.c++
Subject	Re: Differences between C and C++
Date	2022-07-31 14:39 +0000
Organization	Aioe.org NNTP Server
Message-ID	<tc646u$gm5$1@gioia.aioe.org> (permalink)
References	(4 earlier) <jkffqcFbbplU1@mid.individual.net> <tbu8us$t6b$1@gioia.aioe.org> <tbufhe$36veg$1@dont-email.me> <tc03ru$1ld7$1@gioia.aioe.org> <tc1t64$ert$1@gioia.aioe.org>

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Manfred <noname@add.invalid> wrote:
> That, and below, is generally true for a generic dynamic container. 
> However, std::string is not a generic container. It is a very specific 
> and very optimized container of chars.
> So, if you use a decent implementation of std the performance of 
> std::string and char* is usually pretty close.

I don't know if you are referring to it, but many people seem to think that
"short string optimization" makes std::string pretty much as efficient
as an array of char (for strings that are short enough).

They fail to take into consideration that short string optimization
requires conditionals in almost all member functons that access the
string data. Conditionals are not free.

Thread

Differences between C and C++ Juha Nieminen <nospam@thanks.invalid> - 2022-07-25 13:14 +0000
  Re: Differences between C and C++ "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2022-07-25 16:18 +0200
  Re: Differences between C and C++ Paavo Helde <eesnimi@osa.pri.ee> - 2022-07-25 18:47 +0300
    Re: Differences between C and C++ Paavo Helde <eesnimi@osa.pri.ee> - 2022-07-25 19:49 +0300
      Re: Differences between C and C++ Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-07-25 19:38 +0100
  Re: Differences between C and C++ Öö Tiib <ootiib@hot.ee> - 2022-07-25 08:51 -0700
  Re: Differences between C and C++ Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-07-25 17:14 +0100
    Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-25 16:19 +0000
      Re: Differences between C and C++ Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-07-25 19:28 +0100
      Re: Differences between C and C++ Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2022-07-25 12:21 -0700
        Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-26 07:54 +0000
          Re: Differences between C and C++ Juha Nieminen <nospam@thanks.invalid> - 2022-07-26 08:00 +0000
            Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-26 08:09 +0000
              Re: Differences between C and C++ Öö Tiib <ootiib@hot.ee> - 2022-07-26 02:42 -0700
                Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-26 15:29 +0000
                Re: Differences between C and C++ scott@slp53.sl.home (Scott Lurndal) - 2022-07-26 16:30 +0000
                Re: Differences between C and C++ Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2022-07-26 11:59 -0700
                Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-27 07:52 +0000
                Re: Differences between C and C++ Öö Tiib <ootiib@hot.ee> - 2022-07-27 01:56 -0700
                Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-27 14:51 +0000
                Re: Differences between C and C++ Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2022-07-27 11:11 -0700
    Re: Differences between C and C++ Juha Nieminen <nospam@thanks.invalid> - 2022-07-26 06:09 +0000
      Re: Differences between C and C++ Ben Bacarisse <ben.usenet@bsb.me.uk> - 2022-07-27 17:33 +0100
  Re: Differences between C and C++ Chris Vine <chris@cvine--nospam--.freeserve.co.uk> - 2022-07-25 17:45 +0100
  Re: Differences between C and C++ Paul N <gw7rib@aol.com> - 2022-07-27 10:09 -0700
    Re: Differences between C and C++ Bo Persson <bo@bo-persson.se> - 2022-07-27 19:28 +0200
      Re: Differences between C and C++ Paul N <gw7rib@aol.com> - 2022-07-27 11:43 -0700
        Re: Differences between C and C++ David Brown <david.brown@hesbynett.no> - 2022-07-29 18:04 +0200
          Re: Differences between C and C++ Richard Damon <Richard@Damon-Family.org> - 2022-07-29 18:47 -0400
            Re: Differences between C and C++ David Brown <david.brown@hesbynett.no> - 2022-07-30 14:08 +0200
      Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-28 08:03 +0000
        Re: Differences between C and C++ Öö Tiib <ootiib@hot.ee> - 2022-07-28 01:57 -0700
          Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-28 09:04 +0000
    Re: Differences between C and C++ Juha Nieminen <nospam@thanks.invalid> - 2022-07-28 06:53 +0000
      Re: Differences between C and C++ Richard Damon <Richard@Damon-Family.org> - 2022-07-28 07:33 -0400
        Re: Differences between C and C++ Bo Persson <bo@bo-persson.se> - 2022-07-28 15:04 +0200
          Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-28 15:11 +0000
            Re: Differences between C and C++ Paavo Helde <eesnimi@osa.pri.ee> - 2022-07-28 20:03 +0300
              Re: Differences between C and C++ Juha Nieminen <nospam@thanks.invalid> - 2022-07-29 07:56 +0000
                Re: Differences between C and C++ Paavo Helde <eesnimi@osa.pri.ee> - 2022-07-29 12:03 +0300
                Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-29 09:28 +0000
                Re: Differences between C and C++ Juha Nieminen <nospam@thanks.invalid> - 2022-07-29 12:27 +0000
                Re: Differences between C and C++ Öö Tiib <ootiib@hot.ee> - 2022-07-29 05:43 -0700
                Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-29 14:14 +0000
                Re: Differences between C and C++ Öö Tiib <ootiib@hot.ee> - 2022-07-29 08:25 -0700
                Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-29 15:48 +0000
                Re: Differences between C and C++ Öö Tiib <ootiib@hot.ee> - 2022-07-29 13:12 -0700
                Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-30 09:28 +0000
                Re: Differences between C and C++ Öö Tiib <ootiib@hot.ee> - 2022-07-30 03:39 -0700
                Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-30 14:23 +0000
                Re: Differences between C and C++ Öö Tiib <ootiib@hot.ee> - 2022-07-30 19:07 -0700
                Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-31 07:22 +0000
                Re: Differences between C and C++ Öö Tiib <ootiib@hot.ee> - 2022-07-31 06:07 -0700
                Re: Differences between C and C++ muttley@dastardlyhq.com - 2022-07-31 16:36 +0000
                Re: Differences between C and C++ Öö Tiib <ootiib@hot.ee> - 2022-08-01 01:12 -0700
                Re: Differences between C and C++ Juha Nieminen <nospam@thanks.invalid> - 2022-07-29 22:47 +0000
                Re: Differences between C and C++ Öö Tiib <ootiib@hot.ee> - 2022-07-30 03:48 -0700
                Re: Differences between C and C++ Öö Tiib <ootiib@hot.ee> - 2022-07-29 05:16 -0700
                Re: Differences between C and C++ Manfred <noname@add.invalid> - 2022-07-30 02:14 +0200
                Re: Differences between C and C++ Juha Nieminen <nospam@thanks.invalid> - 2022-07-31 14:39 +0000
                Re: Differences between C and C++ "Fred. Zwarts" <F.Zwarts@KVI.nl> - 2022-07-31 18:49 +0200
                Re: Differences between C and C++ Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-07-31 14:49 -0700
                Re: Differences between C and C++ Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2022-07-31 17:03 -0700
                Re: Differences between C and C++ Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-08-01 00:16 -0700
                Re: Differences between C and C++ Ike Naar <ike@sdf.org> - 2022-08-01 07:27 +0000
                Re: Differences between C and C++ Paavo Helde <eesnimi@osa.pri.ee> - 2022-08-01 10:47 +0300
                Re: Differences between C and C++ Paavo Helde <eesnimi@osa.pri.ee> - 2022-08-01 10:34 +0300
                Re: Differences between C and C++ Manfred <noname@add.invalid> - 2022-08-03 01:20 +0200
                Re: Differences between C and C++ Juha Nieminen <nospam@thanks.invalid> - 2022-08-03 07:59 +0000
                Re: Differences between C and C++ Bo Persson <bo@bo-persson.se> - 2022-08-03 12:45 +0200
                Re: Differences between C and C++ Juha Nieminen <nospam@thanks.invalid> - 2022-08-03 10:53 +0000
                Re: Differences between C and C++ Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-08-03 03:58 -0700
                Re: Differences between C and C++ Paavo Helde <eesnimi@osa.pri.ee> - 2022-08-03 14:49 +0300
                Re: Differences between C and C++ Öö Tiib <ootiib@hot.ee> - 2022-08-03 23:31 -0700
                Re: Differences between C and C++ Juha Nieminen <nospam@thanks.invalid> - 2022-08-01 11:29 +0000
                Re: Differences between C and C++ Bo Persson <bo@bo-persson.se> - 2022-08-01 14:39 +0200
                Re: Differences between C and C++ Juha Nieminen <nospam@thanks.invalid> - 2022-08-02 05:43 +0000
                Re: Differences between C and C++ Manfred <noname@add.invalid> - 2022-08-03 01:13 +0200
                Re: Differences between C and C++ Paavo Helde <eesnimi@osa.pri.ee> - 2022-08-03 09:34 +0300
              Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-29 09:22 +0000
                Re: Differences between C and C++ Paavo Helde <eesnimi@osa.pri.ee> - 2022-07-29 13:53 +0300
                Re: Differences between C and C++ Paavo Helde <eesnimi@osa.pri.ee> - 2022-07-29 14:13 +0300
                Re: Differences between C and C++ Muttley@dastardlyhq.com - 2022-07-29 14:11 +0000
        Re: Differences between C and C++ Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2022-07-28 06:16 -0700

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