Re: Is enum a suitable way to implement a "local define?"

From	glen herrmannsfeldt <gah@ugcs.caltech.edu>
Newsgroups	comp.lang.c
Subject	Re: Is enum a suitable way to implement a "local define?"
Date	2014-04-08 23:05 +0000
Organization	Aioe.org NNTP Server
Message-ID	<li1vb0$oot$1@speranza.aioe.org> (permalink)
References	(9 earlier) <UXx0v.127047$ew1.29978@fx19.am4> <lhudkb$efu$1@dont-email.me> <4Sz0v.75086$Yw3.15453@fx15.am4> <li093i$svh$1@dont-email.me> <TJ_0v.147431$Bj3.3238@fx09.am4>

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BartC <bc@freeuk.com> wrote:

(snip)

> The distinction can be there in the /language/. Clearly not directly in C
> because it doesn't have such a language construct, but some people who want
> to code would like to have it because it makes certain things obvious and
> not a consequence of a whim of a compiler writer.

> With C, you can write 5678, but not &5678.

> You can declare a variable xyz, and write as xyz to obtain the value, or as
> &xyz to obtain its name (ie. a constant pointer value).

> Why can't I declare abc as a synonym for 5678, but be stopped from writing
> &abc? After all I can used #define or enum to declare abc, with some
> limitations, and I can't write &abc then either.

Some years ago when C enum was added to Fortran (as part of the
C interoperabity feature) I had wondered about this. For one,
Fortran doesn't call by value, but normally (though not required)
call by reference. (Call by value result is also allowed.)

In C, enum constants are int, even when enum variables are not,
but I believe in Fortran the constants are the same type (KIND)
as variables. Otherwise, call by reference would fail.

Also, you are not supposed to modify a constant.

-- glen

Thread

Is enum a suitable way to implement a "local define?" partremmaps@gmail.com - 2014-04-05 13:07 -0700
  Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-05 13:55 -0700
  Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-05 14:14 -0700
    Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-06 22:18 +0200
      Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-06 13:28 -0700
      Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-06 16:35 -0400
      Re: Is enum a suitable way to implement a "local define?" Ian Collins <ian-news@hotmail.com> - 2014-04-07 08:55 +1200
        Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-06 23:30 +0200
          Re: Is enum a suitable way to implement a "local define?" Ian Collins <ian-news@hotmail.com> - 2014-04-07 10:12 +1200
          Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-06 18:22 -0400
  Re: Is enum a suitable way to implement a "local define?" Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-04-05 14:30 -0700
  Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-05 22:39 +0100
    Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-06 22:27 +0200
      Re: Is enum a suitable way to implement a "local define?" Ian Collins <ian-news@hotmail.com> - 2014-04-07 08:52 +1200
      Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-06 23:20 +0100
        Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-07 02:17 +0200
          Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-06 19:00 -0700
            Re: Is enum a suitable way to implement a "local define?" glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-04-07 04:44 +0000
              Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-07 10:15 +0100
                Re: Is enum a suitable way to implement a "local define?" glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-04-07 18:32 +0000
                Re: Is enum a suitable way to implement a "local define?" Kaz Kylheku <kaz@kylheku.com> - 2014-04-07 18:47 +0000
              Re: Is enum a suitable way to implement a "local define?" Alain Ketterlin <alain@dpt-info.u-strasbg.fr> - 2014-04-07 11:39 +0200
            Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-07 08:58 +0200
              Re: Is enum a suitable way to implement a "local define?" Ian Collins <ian-news@hotmail.com> - 2014-04-07 19:34 +1200
                Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-07 09:41 +0100
                Re: Is enum a suitable way to implement a "local define?" Ian Collins <ian-news@hotmail.com> - 2014-04-07 21:45 +1200
                Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-07 11:03 +0100
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-07 12:54 +0200
                Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-07 13:48 +0100
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-07 15:27 +0200
                Re: Is enum a suitable way to implement a "local define?" Ian Collins <ian-news@hotmail.com> - 2014-04-07 23:00 +1200
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-07 11:31 +0200
                Re: Is enum a suitable way to implement a "local define?" Les Cargill <lcargill99@comcast.com> - 2014-04-07 07:24 -0500
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-07 15:02 +0200
          Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-07 10:19 +0100
            Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-07 12:43 +0200
              Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-07 13:27 +0100
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-07 15:16 +0200
                Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-07 14:43 +0100
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-07 16:44 +0200
                Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-07 16:52 +0100
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-07 12:53 -0400
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-07 12:59 -0400
                Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-07 18:12 +0100
                Re: Is enum a suitable way to implement a "local define?" Richard <rgrdev_@gmail.com> - 2014-04-07 18:27 +0100
                Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-08 23:22 +0100
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-08 18:44 -0400
                Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-09 00:22 +0100
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-08 09:39 +0200
                Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-08 23:27 +0100
                Re: Is enum a suitable way to implement a "local define?" Ian Collins <ian-news@hotmail.com> - 2014-04-09 10:52 +1200
                Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-09 00:24 +0100
                Re: Is enum a suitable way to implement a "local define?" Ian Collins <ian-news@hotmail.com> - 2014-04-09 11:32 +1200
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-09 08:58 +0200
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-08 19:54 -0400
                Re: Is enum a suitable way to implement a "local define?" Kaz Kylheku <kaz@kylheku.com> - 2014-04-09 00:41 +0000
                Re: Is enum a suitable way to implement a "local define?" glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-04-08 23:05 +0000
                Re: Is enum a suitable way to implement a "local define?" Stephen Sprunk <stephen@sprunk.org> - 2014-04-08 18:24 -0500
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-08 19:39 -0400
                Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-08 22:41 -0700
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-09 09:16 +0200
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-09 07:27 -0400
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-09 15:32 +0200
                Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-09 08:32 -0700
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-10 11:03 +0200
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-10 07:27 -0400
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-10 14:02 +0200
                Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-10 08:34 -0700
                Re: Is enum a suitable way to implement a "local define?" glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-04-10 16:36 +0000
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-10 12:58 -0400
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-09 11:36 -0400
                Re: Is enum a suitable way to implement a "local define?" glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-04-09 18:36 +0000
                Re: Is enum a suitable way to implement a "local define?" Stephen Sprunk <stephen@sprunk.org> - 2014-04-09 14:11 -0500
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-10 13:55 +0200
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-09 02:35 +0200
                Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-08 23:05 -0700
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-09 09:45 +0200
                Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-09 08:19 -0700
                Re: Is enum a suitable way to implement a "local define?" Richard <rgrdev_@gmail.com> - 2014-04-10 09:08 +0100
                Re: Is enum a suitable way to implement a "local define?" Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-04-10 02:57 -0700
                Re: Is enum a suitable way to implement a "local define?" Richard <rgrdev_@gmail.com> - 2014-04-10 11:50 +0100
                Re: Is enum a suitable way to implement a "local define?" Seungbeom Kim <musiphil@bawi.org> - 2014-04-10 11:37 -0700
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-10 14:52 -0400
                Re: Is enum a suitable way to implement a "local define?" Kaz Kylheku <kaz@kylheku.com> - 2014-04-10 18:53 +0000
                Re: Is enum a suitable way to implement a "local define?" glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-04-10 19:36 +0000
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-10 15:59 -0400
                Re: Is enum a suitable way to implement a "local define?" glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-04-10 20:12 +0000
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-10 16:18 -0400
                Re: Is enum a suitable way to implement a "local define?" Martin Shobe <martin.shobe@yahoo.com> - 2014-04-11 10:24 -0500
                Re: Is enum a suitable way to implement a "local define?" Martin Shobe <martin.shobe@yahoo.com> - 2014-04-11 14:36 -0500
                Re: Is enum a suitable way to implement a "local define?" David Thompson <dave.thompson2@verizon.net> - 2014-05-25 16:44 -0400
                Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-10 12:47 -0700
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-10 16:05 -0400
                Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-10 13:34 -0700
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-10 16:59 -0400
                Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-10 16:01 -0700
                Re: Is enum a suitable way to implement a "local define?" Tim Rentsch <txr@alumni.caltech.edu> - 2014-04-14 21:24 -0700
                Re: Is enum a suitable way to implement a "local define?" Tim Rentsch <txr@alumni.caltech.edu> - 2014-04-14 21:36 -0700
                Re: Is enum a suitable way to implement a "local define?" glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2014-04-15 05:26 +0000
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-15 07:18 -0400
                Re: Is enum a suitable way to implement a "local define?" Tim Rentsch <txr@alumni.caltech.edu> - 2014-04-18 09:01 -0700
                Please ignore trolls Noob <root@127.0.0.1> - 2014-04-09 15:26 +0200
                Re: Please ignore trolls David Brown <david.brown@hesbynett.no> - 2014-04-09 15:38 +0200
                Re: Please ignore trolls James Kuyper <jameskuyper@verizon.net> - 2014-04-09 12:02 -0400
                Re: Please ignore trolls Kaz Kylheku <kaz@kylheku.com> - 2014-04-09 19:18 +0000
                Re: Please ignore trolls "BartC" <bc@freeuk.com> - 2014-04-10 20:18 +0100
                Re: Please ignore trolls James Kuyper <jameskuyper@verizon.net> - 2014-04-10 15:49 -0400
                Re: Please ignore trolls gazelle@shell.xmission.com (Kenny McCormack) - 2014-04-10 20:14 +0000
                Re: Please ignore trolls "BartC" <bc@freeuk.com> - 2014-04-11 14:35 +0100
                Re: Please ignore trolls Malcolm McLean <malcolm.mclean5@btinternet.com> - 2014-04-11 07:35 -0700
                Re: Please ignore trolls "BartC" <bc@freeuk.com> - 2014-04-11 15:51 +0100
                Re: Please ignore trolls Jorgen Grahn <grahn+nntp@snipabacken.se> - 2014-04-12 15:48 +0000
                Re: Please ignore trolls Kaz Kylheku <kaz@kylheku.com> - 2014-04-10 21:16 +0000
                Re: Please ignore trolls "BartC" <bc@freeuk.com> - 2014-04-12 15:35 +0100
                Re: Please ignore trolls Keith Thompson <kst-u@mib.org> - 2014-04-09 08:03 -0700
                Re: Please ignore trolls gazelle@shell.xmission.com (Kenny McCormack) - 2014-04-09 15:25 +0000
                Re: Is enum a suitable way to implement a "local define?" Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-04-09 21:28 +0100
                Re: Is enum a suitable way to implement a "local define?" Ian Collins <ian-news@hotmail.com> - 2014-04-10 08:39 +1200
                Re: Is enum a suitable way to implement a "local define?" Kaz Kylheku <kaz@kylheku.com> - 2014-04-09 23:38 +0000
                Re: Is enum a suitable way to implement a "local define?" Ben Bacarisse <ben.usenet@bsb.me.uk> - 2014-04-10 02:07 +0100
                Re: Is enum a suitable way to implement a "local define?" Ike Naar <ike@iceland.freeshell.org> - 2014-04-09 05:18 +0000
                Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-09 08:05 -0700
            Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-07 08:33 -0700
              Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-07 17:16 +0100
                Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-07 11:07 -0700
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-08 09:49 +0200
                Re: Is enum a suitable way to implement a "local define?" Ian Collins <ian-news@hotmail.com> - 2014-04-08 20:33 +1200
                Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-08 12:31 +0200
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-08 21:59 -0400
                Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-08 07:37 -0700
              Re: Is enum a suitable way to implement a "local define?" Stephen Sprunk <stephen@sprunk.org> - 2014-04-08 08:35 -0500
                Re: Is enum a suitable way to implement a "local define?" Seungbeom Kim <musiphil@bawi.org> - 2014-04-08 11:30 -0700
                Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-08 23:46 +0100
                Re: Is enum a suitable way to implement a "local define?" Stephen Sprunk <stephen@sprunk.org> - 2014-04-08 18:28 -0500
                Re: Is enum a suitable way to implement a "local define?" Seungbeom Kim <musiphil@bawi.org> - 2014-04-08 17:21 -0700
                Re: Is enum a suitable way to implement a "local define?" "BartC" <bc@freeuk.com> - 2014-04-09 09:07 +0100
                Re: Is enum a suitable way to implement a "local define?" James Kuyper <jameskuyper@verizon.net> - 2014-04-09 07:22 -0400
      Re: Is enum a suitable way to implement a "local define?" Keith Thompson <kst-u@mib.org> - 2014-04-06 16:25 -0700
        Re: Is enum a suitable way to implement a "local define?" David Brown <david.brown@hesbynett.no> - 2014-04-07 02:22 +0200
  Re: Is enum a suitable way to implement a "local define?" Ike Naar <ike@iceland.freeshell.org> - 2014-04-06 06:08 +0000
  Re: Is enum a suitable way to implement a "local define?" jacob navia <jacob@spamsink.net> - 2014-04-06 08:54 +0200
  Re: Is enum a suitable way to implement a "local define?" partremmaps@gmail.com - 2014-04-07 23:48 -0700

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