Re: deep copy or shallow copy?

From	Victor Bazarov <v.bazarov@comcast.invalid>
Newsgroups	comp.lang.c++
Subject	Re: deep copy or shallow copy?
Date	2014-07-27 14:35 -0400
Organization	A noiseless patient Spider
Message-ID	<lr3gpr$ne5$1@dont-email.me> (permalink)
References	(4 earlier) <c3h6paFkldlU1@mid.individual.net> <lr188t$cok$1@dont-email.me> <methods-20140727002951@ram.dialup.fu-berlin.de> <lr33rk$kfv$1@dont-email.me> <methods-20140727191601@ram.dialup.fu-berlin.de>

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On 7/27/2014 1:18 PM, Stefan Ram wrote:
> Victor Bazarov <v.bazarov@comcast.invalid> writes:
>> If you care to learn, I'd venture to explain.  "The difference is
>> methods" is a contracted sentence in which "the presence of" is omitted
>> before "methods", which in complete form would be "the difference is the
>> presence of methods" (feel free to replace "presence" with "existence"
>> or "ability to have" or some other synonym).
>> Doesn't make the statement any more true, of course, but that's not the
>> point.
>
>    Thank you! So I learn that the sentence is permissible from
>    the grammatical point of view. But - semantically - I believe
>    that it is very vague. The reader has the choice to insert
>
> - presence
> - existence
> - ability to have
>
>    or some other synonym. But why not something else that is
>    not synonym? One could also insert »The difference is /the
>    possibility to apply/ methods.« The author might believe
>    that one can apply methods to a struct but not to a class.
>    Even the wording »ability to have« might allow for this
>    interpretation. (One »can have« methods with a struct
>    argument but not with a class argument.)
>
>    Moreover, the direction is not given: Does the author assume
>    that classes can have methods, but structs cannot; or that
>    structs can have methods, but classes cannot?
>
>    So, to me, such a sentence is so vague that it requires
>    further clarification.

I agree with your assessments here.  They don't make it less correct 
grammatically, though.  You now explained a bit more why you couldn't 
"make sense of it".  So, to conclude, it had really nothing to do with 
its being incorrect grammatically, or your being non-native English speaker.

>    Think you were a student and the teacher has just introduced
>    a language with two types of records: a-records and w-records.
>    Now he explains: »The difference between them is keywords!«
>    /Without/ further explanation this is not a sufficient explanation.
>    /With/ further explanation it is dispensable.
>    So, by itself, it carries very little information.

Yes.  It's still English...

>    A more formal answer to the question »What is the difference
>    between classes and structs?« might be, »n3797 does not
>    define a difference operation for these kinds of entities.«

A smiley is missing, I believe, after this paragraph.

V
-- 
I do not respond to top-posted replies, please don't ask

Thread

deep copy or shallow copy? mbalover2014@gmail.com - 2014-06-24 10:53 -0700
  Re: deep copy or shallow copy? Robert Wessel <robertwessel2@yahoo.com> - 2014-06-24 13:01 -0500
  Re: deep copy or shallow copy? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2014-06-24 20:19 +0000
    Re: deep copy or shallow copy? drew@furrfu.invalid (Drew Lawson) - 2014-06-26 12:43 +0000
      Re: deep copy or shallow copy? Jorgen Grahn <grahn+nntp@snipabacken.se> - 2014-07-01 15:23 +0000
  Re: deep copy or shallow copy? Victor Bazarov <v.bazarov@comcast.invalid> - 2014-06-24 16:32 -0400
  Re: deep copy or shallow copy? Juha Nieminen <nospam@thanks.invalid> - 2014-06-26 04:48 +0000
    Re: deep copy or shallow copy? JiiPee <no@notvalid.com> - 2014-07-18 10:37 +0100
    Re: deep copy or shallow copy? CHIN Dihedral <dihedral88888@gmail.com> - 2014-07-22 13:28 -0700
      Re: deep copy or shallow copy? Victor Bazarov <v.bazarov@comcast.invalid> - 2014-07-22 16:37 -0400
        Re: deep copy or shallow copy? CHIN Dihedral <dihedral88888@gmail.com> - 2014-07-23 03:17 -0700
          Re: deep copy or shallow copy? Victor Bazarov <v.bazarov@comcast.invalid> - 2014-07-23 08:47 -0400
            Re: deep copy or shallow copy? CHIN Dihedral <dihedral88888@gmail.com> - 2014-07-23 14:14 -0700
      Re: deep copy or shallow copy? Wouter van Ooijen <wouter@voti.nl> - 2014-07-23 09:28 +0200
      Re: deep copy or shallow copy? Juha Nieminen <nospam@thanks.invalid> - 2014-07-24 05:21 +0000
        Re: deep copy or shallow copy? CHIN Dihedral <dihedral88888@gmail.com> - 2014-07-25 08:05 -0700
  Re: deep copy or shallow copy? Lynn McGuire <lmc@winsim.com> - 2014-07-25 17:53 -0500
    Re: deep copy or shallow copy? Victor Bazarov <v.bazarov@comcast.invalid> - 2014-07-25 19:06 -0400
      Re: deep copy or shallow copy? CHIN Dihedral <dihedral88888@gmail.com> - 2014-07-25 18:59 -0700
        Re: deep copy or shallow copy? ojackson520@gmail.com - 2014-07-25 23:56 -0700
        Re: deep copy or shallow copy? scott@slp53.sl.home (Scott Lurndal) - 2014-07-28 13:35 +0000
          Re: deep copy or shallow copy? Lynn McGuire <lmc@winsim.com> - 2014-07-28 15:54 -0500
            Re: deep copy or shallow copy? David Brown <david.brown@hesbynett.no> - 2014-07-29 12:30 +0200
              Re: deep copy or shallow copy? Reinhardt Behm <rbehm@hushmail.com> - 2014-07-29 18:56 +0800
              Re: deep copy or shallow copy? Tobias Müller <troplin@bluewin.ch> - 2014-07-29 12:03 +0000
              Re: deep copy or shallow copy? scott@slp53.sl.home (Scott Lurndal) - 2014-07-29 14:21 +0000
                Re: deep copy or shallow copy? Victor Bazarov <v.bazarov@comcast.invalid> - 2014-07-29 12:39 -0400
                Re: deep copy or shallow copy? Martijn Lievaart <m@rtij.nl.invlalid> - 2014-07-29 18:48 +0200
                Re: deep copy or shallow copy? Wouter van Ooijen <wouter@voti.nl> - 2014-07-29 19:16 +0200
                Re: deep copy or shallow copy? Victor Bazarov <v.bazarov@comcast.invalid> - 2014-07-29 14:38 -0400
                Re: deep copy or shallow copy? scott@slp53.sl.home (Scott Lurndal) - 2014-07-29 19:24 +0000
                Re: deep copy or shallow copy? David Brown <david.brown@hesbynett.no> - 2014-07-30 11:08 +0200
              Re: deep copy or shallow copy? Paavo Helde <myfirstname@osa.pri.ee> - 2014-07-29 15:30 -0500
      Re: deep copy or shallow copy? Lynn McGuire <lmc@winsim.com> - 2014-07-26 01:37 -0500
        Re: deep copy or shallow copy? Ian Collins <ian-news@hotmail.com> - 2014-07-26 20:22 +1200
          Re: deep copy or shallow copy? CHIN Dihedral <dihedral88888@gmail.com> - 2014-07-26 03:19 -0700
            Re: deep copy or shallow copy? Wouter van Ooijen <wouter@voti.nl> - 2014-07-26 14:34 +0200
          Re: deep copy or shallow copy? Lynn McGuire <lmc@winsim.com> - 2014-07-26 16:56 -0500
            Re: deep copy or shallow copy? Richard Damon <Richard@Damon-Family.org> - 2014-07-26 18:26 -0400
            Re: deep copy or shallow copy? Ian Collins <ian-news@hotmail.com> - 2014-07-27 11:14 +1200
            Re: deep copy or shallow copy? Victor Bazarov <v.bazarov@comcast.invalid> - 2014-07-27 10:54 -0400
              Re: deep copy or shallow copy? "Osmium" <r124c4u102@comcast.net> - 2014-07-27 10:01 -0500
                Re: deep copy or shallow copy? CHIN Dihedral <dihedral88888@gmail.com> - 2014-07-27 16:12 -0700
              Re: deep copy or shallow copy? Victor Bazarov <v.bazarov@comcast.invalid> - 2014-07-27 14:35 -0400
              Re: deep copy or shallow copy? Stuart <DerTopper@web.de> - 2014-07-28 17:24 +0200
                Re: deep copy or shallow copy? Victor Bazarov <v.bazarov@comcast.invalid> - 2014-07-28 12:52 -0400
                Re: deep copy or shallow copy? scott@slp53.sl.home (Scott Lurndal) - 2014-07-28 18:43 +0000
            Re: deep copy or shallow copy? scott@slp53.sl.home (Scott Lurndal) - 2014-07-28 13:39 +0000
        Re: deep copy or shallow copy? Victor Bazarov <v.bazarov@comcast.invalid> - 2014-07-26 11:34 -0400
          Re: deep copy or shallow copy? Lynn McGuire <lmc@winsim.com> - 2014-07-26 16:59 -0500
    Re: deep copy or shallow copy? scott@slp53.sl.home (Scott Lurndal) - 2014-07-28 13:32 +0000
      Re: deep copy or shallow copy? Lynn McGuire <lmc@winsim.com> - 2014-07-28 14:28 -0500
        Re: deep copy or shallow copy? Juha Nieminen <nospam@thanks.invalid> - 2014-08-04 05:56 +0000
          Re: deep copy or shallow copy? Lynn McGuire <lmc@winsim.com> - 2014-08-05 11:41 -0500
            Re: deep copy or shallow copy? Juha Nieminen <nospam@thanks.invalid> - 2014-08-07 11:03 +0000
              Re: deep copy or shallow copy? Lynn McGuire <lmc@winsim.com> - 2014-08-07 12:29 -0500
        Re: deep copy or shallow copy? Öö Tiib <ootiib@hot.ee> - 2014-08-04 05:02 -0700
          Re: deep copy or shallow copy? Lynn McGuire <lmc@winsim.com> - 2014-08-05 11:43 -0500
            Re: deep copy or shallow copy? Öö Tiib <ootiib@hot.ee> - 2014-08-05 17:13 -0700
              Re: deep copy or shallow copy? Lynn McGuire <lmc@winsim.com> - 2014-08-06 15:14 -0500
          Re: deep copy or shallow copy? CHIN Dihedral <dihedral88888@gmail.com> - 2014-08-20 20:56 -0700
  Re: deep copy or shallow copy? Mikołaj Małecki <ethouris@gmail.com> - 2014-08-11 00:13 -0700

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