Re: C struct syntax allowance by usage

From	Ian Collins <ian-news@hotmail.com>
Newsgroups	comp.lang.c
Subject	Re: C struct syntax allowance by usage
Date	2015-10-17 16:49 +1300
Message-ID	<d8duqcFrihmU1@mid.individual.net> (permalink)
References	(2 earlier) <mvs2ja$qoi$1@dont-email.me> <d8dqccFp0vsU6@mid.individual.net> <2c9f280f-01d1-4644-a62f-40853c80ee6b@googlegroups.com> <d8drqdFp0vsU8@mid.individual.net> <73147d83-f1b4-4c26-8ebf-45226d3b868c@googlegroups.com>

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Rick C. Hodgin wrote:
> On Friday, October 16, 2015 at 10:58:31 PM UTC-4, Ian Collins wrote:
>> Rick C. Hodgin wrote:

>>> Neither.  The target cannot be resolved into a single entity given
>>> that 42 could apply to both int and short.  It would report an
>>> "ambiguous assignment, unable to auto-resolve" error.
>>
>> Which could lead to a shed load of errors if at some point you decide
>> SAbc::f should really be a integer type rather than a float!
>
> Have you read my replies in this thread?  I have indicated there would
> be refactoring abilities in the GUI editor / IDE which would allow for
> these things to be changed in appropriate context.  I cited the existing
> Visual Studio add-on tool called Visual Assist X, which has the ability
> today to change the C++ prototype definitions with initialized params
> should you later decide to un-initialize one of them.

You are biting off an awful lot...

>>> However, these would both work:
>>>
>>>       foo = (int)42;
>>>       foo = (short)42;
>>
>> Which defeats the code simplification objective.
>
> You and Bart are both looking at silly applications of fundamental
> types which may intrude atop other fundamental types.  While there
> may be some utility there in storing fundamental types, my goals
> are more for structs or classes, which would be unique and distinct
> as by their storage within the larger outer container.

Well you can't blame us when you used fundamental types in your example!

> Simplification comes in the form of my example above where I use
> the SBody struct which contained sub-struct members SLiver, SHeart,
> SBrain, etc.  I assigned "SBody rick" and then was able to use
> only "rick" in context rather than rick.brain or rick.heart, etc.

Conceptually that makes little sense.  You aren't a liver, so writing

rick = aLiver;

is just wrong in so many ways.

Believe me when I say I'm writing this having seen such hideous 
constructs used in novice C++ code.  Just because something can be done 
doesn't mean it should!

The only legitimate use for such code is for implementing an "anything" 
type generic object.  I've used it for JSON objects that can be 
initialised or assigned from and converted back to any fundamental or 
JSON type.  That use case does make sense, others do not.

-- 
Ian Collins

Thread

C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-16 13:29 -0700
  Re: C struct syntax allowance by usage Siri Cruz <chine.bleu@yahoo.com> - 2015-10-16 13:47 -0700
    Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-16 14:12 -0700
  Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-16 22:15 +0100
    Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-16 14:38 -0700
      Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-17 10:32 +0100
        Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-17 05:26 -0700
          Re: C struct syntax allowance by usage Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-10-17 14:17 +0100
            Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-17 06:48 -0700
              Re: C struct syntax allowance by usage Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-10-17 19:01 +0100
                Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-17 11:17 -0700
    Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-16 15:28 -0700
      Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-17 01:41 +0100
        Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-16 18:23 -0700
      Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-18 11:04 +0200
  Re: C struct syntax allowance by usage Ian Collins <ian-news@hotmail.com> - 2015-10-17 10:31 +1300
    Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-16 14:38 -0700
      Re: C struct syntax allowance by usage Ian Collins <ian-news@hotmail.com> - 2015-10-17 11:14 +1300
        Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-16 15:25 -0700
          Re: C struct syntax allowance by usage Ian Collins <ian-news@hotmail.com> - 2015-10-17 11:31 +1300
            Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-16 15:38 -0700
              Re: C struct syntax allowance by usage Ian Collins <ian-news@hotmail.com> - 2015-10-17 12:32 +1300
                Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-18 11:35 +0200
                Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-18 11:16 +0100
                Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-18 13:40 +0200
                Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-18 17:35 +0100
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-18 10:52 -0700
                Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-18 11:02 -0700
                Re: C struct syntax allowance by usage Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-10-18 19:59 +0100
                Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-18 12:15 -0700
                Re: C struct syntax allowance by usage Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-10-18 21:41 +0100
                Likeliehood of RDC/SeaAlive implementation (Was: C struct syntax allowance by usage) gazelle@shell.xmission.com (Kenny McCormack) - 2015-10-19 08:23 +0000
                Re: C struct syntax allowance by usage Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2015-10-18 14:02 -0400
                Re: C struct syntax allowance by usage Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2015-10-18 14:19 -0400
                Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-18 21:13 +0100
                Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-18 20:37 +0200
                Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-18 20:27 +0100
                Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-18 23:14 +0200
                Re: C struct syntax allowance by usage asetofsymbols@gmail.com - 2015-10-18 15:09 -0700
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-18 16:11 -0700
                Re: C struct syntax allowance by usage Ian Collins <ian-news@hotmail.com> - 2015-10-19 07:57 +1300
                Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-18 20:11 +0100
                Re: C struct syntax allowance by usage Ian Collins <ian-news@hotmail.com> - 2015-10-19 09:19 +1300
          Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-18 11:19 +0200
            Re: C struct syntax allowance by usage Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-10-18 03:08 -0700
              Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-18 13:52 +0200
                Re: C struct syntax allowance by usage Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-10-18 05:39 -0700
                Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-18 14:57 +0200
                Re: C struct syntax allowance by usage Ian Collins <ian-news@hotmail.com> - 2015-10-19 10:31 +1300
              Re: C struct syntax allowance by usage Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-10-18 15:49 +0100
                Re: C struct syntax allowance by usage Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-10-18 16:53 -0700
                Re: C struct syntax allowance by usage Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-10-19 01:50 +0100
                Re: C struct syntax allowance by usage Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-10-19 02:28 -0700
                Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-19 12:38 +0200
                Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-19 12:09 +0100
                Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-19 14:26 +0200
                Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-19 13:34 +0100
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-20 02:36 +0000
                Re: C struct syntax allowance by usage Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-10-19 05:09 -0700
                Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-19 14:41 +0200
                Re: C struct syntax allowance by usage Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-10-19 06:08 -0700
                Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-19 15:20 +0200
                Re: C struct syntax allowance by usage Keith Thompson <kst-u@mib.org> - 2015-10-19 08:24 -0700
                Re: C struct syntax allowance by usage Ian Collins <ian-news@hotmail.com> - 2015-10-20 08:43 +1300
                Re: C struct syntax allowance by usage Keith Thompson <kst-u@mib.org> - 2015-10-19 13:00 -0700
                Re: C struct syntax allowance by usage Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-10-19 20:34 +0000
                Re: C struct syntax allowance by usage Ian Collins <ian-news@hotmail.com> - 2015-10-20 09:47 +1300
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-19 16:32 -0700
                Re: C struct syntax allowance by usage Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-10-20 10:37 +0000
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-19 21:24 +0000
                Re: C struct syntax allowance by usage Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-10-20 13:49 +0000
                Re: C struct syntax allowance by usage Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-10-20 07:33 -0700
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-20 15:53 +0000
                Re: C struct syntax allowance by usage Keith Thompson <kst-u@mib.org> - 2015-10-20 10:37 -0700
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-21 05:05 +0000
                Re: C struct syntax allowance by usage Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-10-21 02:02 -0700
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-21 06:07 -0700
                Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-21 14:15 +0100
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-21 09:23 -0700
                Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-21 18:30 +0100
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-21 12:13 -0700
                Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-21 21:17 +0100
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-21 14:21 -0700
                Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-21 14:55 -0700
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-21 15:45 -0700
                Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-22 14:33 +0200
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-22 08:54 -0700
                Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-23 15:59 +0200
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-23 15:03 -0700
                Re: C struct syntax allowance by usage Richard Damon <Richard@Damon-Family.org> - 2015-10-24 10:37 -0400
                Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-21 23:26 +0100
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-21 15:56 -0700
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-22 05:19 +0000
                Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-22 11:08 +0100
                Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-22 14:58 +0200
                Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-22 14:06 +0200
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-22 07:41 -0700
                Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-22 14:00 +0100
                Re: C struct syntax allowance by usage Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-10-22 21:00 +0000
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-22 14:57 -0700
                Re: C struct syntax allowance by usage Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-10-21 14:41 +0000
                Re: C struct syntax allowance by usage Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-10-21 13:01 -0700
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-21 13:25 -0700
                Re: C struct syntax allowance by usage Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-10-22 07:44 +0000
                Re: C struct syntax allowance by usage Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-10-21 13:41 +0000
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-22 05:22 +0000
                Re: C struct syntax allowance by usage Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-10-22 01:01 -0700
                Re: C struct syntax allowance by usage Les Cargill <lcargill99@comcast.com> - 2015-10-22 08:00 -0500
                Re: C struct syntax allowance by usage James Kuyper <jameskuyper@verizon.net> - 2015-10-21 09:49 -0400
                Re: C struct syntax allowance by usage Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-10-21 13:20 +0000
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-20 15:40 +0000
                Re: C struct syntax allowance by usage James Kuyper <jameskuyper@verizon.net> - 2015-10-20 11:55 -0400
                Re: C struct syntax allowance by usage Keith Thompson <kst-u@mib.org> - 2015-10-20 10:34 -0700
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-21 05:20 +0000
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-21 05:11 +0000
                Re: C struct syntax allowance by usage James Kuyper <jameskuyper@verizon.net> - 2015-10-21 09:47 -0400
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-22 05:32 +0000
                Re: C struct syntax allowance by usage James Kuyper <jameskuyper@verizon.net> - 2015-10-22 10:08 -0400
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-22 21:45 +0000
                Re: C struct syntax allowance by usage James Kuyper <jameskuyper@verizon.net> - 2015-10-22 19:09 -0400
                Re: C struct syntax allowance by usage James Kuyper <jameskuyper@verizon.net> - 2015-10-22 19:22 -0400
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-22 17:49 -0700
                Re: C struct syntax allowance by usage Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2015-10-22 21:13 -0400
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-23 11:36 +0000
                Re: C struct syntax allowance by usage Robert Wessel <robertwessel2@yahoo.com> - 2015-10-22 20:18 -0500
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-23 11:55 +0000
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-23 11:14 +0000
                Re: C struct syntax allowance by usage Keith Thompson <kst-u@mib.org> - 2015-10-23 09:09 -0700
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-24 09:31 +0000
                Re: C struct syntax allowance by usage raltbos@xs4all.nl (Richard Bos) - 2015-11-10 15:17 +0000
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-11-10 10:39 -0800
                Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-10 11:02 -0800
                Re: C struct syntax allowance by usage James Kuyper <jameskuyper@verizon.net> - 2015-10-23 15:54 -0400
                Re: C struct syntax allowance by usage Keith Thompson <kst-u@mib.org> - 2015-10-23 13:51 -0700
                Re: C struct syntax allowance by usage James Kuyper <jameskuyper@verizon.net> - 2015-10-23 17:41 -0400
                Re: C struct syntax allowance by usage raltbos@xs4all.nl (Richard Bos) - 2015-11-10 15:32 +0000
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-23 15:17 -0700
                Re: C struct syntax allowance by usage Keith Thompson <kst-u@mib.org> - 2015-10-23 16:34 -0700
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-24 09:51 +0000
                Re: C struct syntax allowance by usage Richard Damon <Richard@Damon-Family.org> - 2015-10-24 10:01 -0400
                Re: C struct syntax allowance by usage James Kuyper <jameskuyper@verizon.net> - 2015-10-24 12:38 -0400
                Re: C struct syntax allowance by usage Robert Wessel <robertwessel2@yahoo.com> - 2015-10-24 13:56 -0500
                Re: C struct syntax allowance by usage James Kuyper <jameskuyper@verizon.net> - 2015-10-24 15:17 -0400
                Re: C struct syntax allowance by usage Robert Wessel <robertwessel2@yahoo.com> - 2015-10-25 13:47 -0500
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-25 23:46 +0000
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-25 07:05 +0000
                Re: C struct syntax allowance by usage James Kuyper <jameskuyper@verizon.net> - 2015-10-25 10:59 -0400
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-26 02:24 +0000
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-25 11:13 -0700
                Re: C struct syntax allowance by usage glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-10-26 02:58 +0000
                Re: C struct syntax allowance by usage supercat@casperkitty.com - 2015-10-24 11:02 -0700
                Re: C struct syntax allowance by usage Sjouke Burry <burrynulnulfour@ppllaanneett.nnll> - 2015-10-24 20:13 +0200
                Re: C struct syntax allowance by usage Keith Thompson <kst-u@mib.org> - 2015-10-24 12:45 -0700
                Re: C struct syntax allowance by usage Ian Collins <ian-news@hotmail.com> - 2015-10-24 10:30 +1300
                Re: C struct syntax allowance by usage Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-10-19 12:05 +0100
  Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-16 15:57 -0700
    Re: C struct syntax allowance by usage Bartc <bc@freeuk.com> - 2015-10-17 00:54 +0100
      Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-16 17:19 -0700
      Re: C struct syntax allowance by usage Ian Collins <ian-news@hotmail.com> - 2015-10-17 15:33 +1300
        Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-16 19:41 -0700
          Re: C struct syntax allowance by usage Ian Collins <ian-news@hotmail.com> - 2015-10-17 15:58 +1300
            Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-16 20:10 -0700
              Re: C struct syntax allowance by usage Ian Collins <ian-news@hotmail.com> - 2015-10-17 16:49 +1300
                Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-16 20:59 -0700
                Re: C struct syntax allowance by usage David Brown <david.brown@hesbynett.no> - 2015-10-18 11:32 +0200
          Re: C struct syntax allowance by usage Richard Damon <Richard@Damon-Family.org> - 2015-10-16 23:15 -0400
            Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-16 20:34 -0700
              Re: C struct syntax allowance by usage "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-10-16 20:45 -0700

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