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Groups > comp.lang.c > #156799
| From | Tim Rentsch <tr.17687@z991.linuxsc.com> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: Is bool no longer a primitive data type of C/C++ ? |
| Date | 2020-11-29 00:09 -0800 |
| Organization | A noiseless patient Spider |
| Message-ID | <86czzwr3cr.fsf@linuxsc.com> (permalink) |
| References | (2 earlier) <vpqdncNTnKpToT3CnZ2dnUU7-K2dnZ2d@giganews.com> <875z6nu10d.fsf@bsb.me.uk> <w72dncKV3eO52T3CnZ2dnUU7-YfNnZ2d@giganews.com> <rnphh9$el1$1@dont-email.me> <3a4d115b-955d-4ef8-98ab-e62155da4abcn@googlegroups.com> |
"james...@alumni.caltech.edu" <jameskuyper@alumni.caltech.edu> writes:
> On Monday, November 2, 2020 at 1:01:31 PM UTC-5, Bonita Montero wrote:
>
>>> Apparently this works on older compilers:
>>> enum Boolean{true, false};
>>> typedef enum Boolean bool;
>>
>> enum has the size of an int, which would match the size
>> of a comparison result. _Bool and bool usually have the
>> size of a char.
>
> I think you may be thinking of C++, where the underlaying type for
> enumerated types defaults to 'int'. However, this is also cross-posted
> to comp.lang.c.
>
> In C, "An identifier declared as an enumeration constant has type int."
> (6.4.4.3p2), and "The expression that defines the value of an
> enumeration constant shall be an integer constant expression that has a
> value representable as an int." (6.7.2.2p2). However, "Each enumerated
> type shall be compatible with char, a signed integer type, or an
> unsigned integer type. The choice of type is implementation-defined
> ..." (6.7.2.2p3). There is no requirement that the compatible integer
> type be "int". It could be char, and I think there's a pretty good
> chance that it will be in this case.
Do you have any empirical backing for that? It wasn't with
any of the compilers I tried.
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Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 10:31 -0600
Re: Is bool no longer a primitive data type of C/C++ ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-02 17:35 +0100
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 10:39 -0600
Re: Is bool no longer a primitive data type of C/C++ ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-02 17:55 +0100
Re: Is bool no longer a primitive data type of C/C++ ? guinness.tony@gmail.com - 2020-11-02 09:00 -0800
Re: Is bool no longer a primitive data type of C/C++ ? Leo <usenet@gkbrk.com> - 2020-11-03 19:50 +0300
Re: Is bool no longer a primitive data type of C/C++ ? James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-11-03 12:43 -0500
Re: Is bool no longer a primitive data type of C/C++ ? "Alf P. Steinbach" <alf.p.steinbach+usenet@gmail.com> - 2020-11-02 17:48 +0100
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 10:50 -0600
Re: Is bool no longer a primitive data type of C/C++ ? Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2020-11-02 10:35 -0700
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 12:17 -0600
Re: Is bool no longer a primitive data type of C/C++ ? James Kuyper <jameskuyper@alumni.caltech.edu> - 2020-11-02 14:03 -0500
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 13:05 -0600
Re: Is bool no longer a primitive data type of C/C++ ? Mike Terry <news.dead.person.stones@darjeeling.plus.com> - 2020-11-02 16:50 +0000
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 11:07 -0600
Re: Is bool no longer a primitive data type of C/C++ ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-02 18:08 +0100
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 11:11 -0600
Re: Is bool no longer a primitive data type of C/C++ ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-02 18:13 +0100
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 11:25 -0600
Re: Is bool no longer a primitive data type of C/C++ ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2020-11-02 17:22 +0000
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 11:26 -0600
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 11:38 -0600
Re: Is bool no longer a primitive data type of C/C++ ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-02 19:01 +0100
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 12:19 -0600
Re: Is bool no longer a primitive data type of C/C++ ? "james...@alumni.caltech.edu" <jameskuyper@alumni.caltech.edu> - 2020-11-02 12:19 -0800
Re: Is bool no longer a primitive data type of C/C++ ? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-11-29 00:09 -0800
Re: Is bool no longer a primitive data type of C/C++ ? David Brown <david.brown@hesbynett.no> - 2020-11-29 13:41 +0100
Re: Is bool no longer a primitive data type of C/C++ ? Richard Damon <Richard@Damon-Family.org> - 2020-11-02 13:18 -0500
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 13:06 -0600
Re: Is bool no longer a primitive data type of C/C++ ? "james...@alumni.caltech.edu" <jameskuyper@alumni.caltech.edu> - 2020-11-02 11:18 -0800
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 13:42 -0600
Re: Is bool no longer a primitive data type of C/C++ ? "james...@alumni.caltech.edu" <jameskuyper@alumni.caltech.edu> - 2020-11-02 12:39 -0800
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 15:08 -0600
Re: Is bool no longer a primitive data type of C/C++ ? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-11-29 00:14 -0800
Re: Is bool no longer a primitive data type of C/C++ ? David Brown <david.brown@hesbynett.no> - 2020-11-29 13:53 +0100
Re: Is bool no longer a primitive data type of C/C++ ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2020-11-29 13:18 +0000
Re: Is bool no longer a primitive data type of C/C++ ? David Brown <david.brown@hesbynett.no> - 2020-11-29 16:16 +0100
Re: Is bool no longer a primitive data type of C/C++ ? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-11-29 17:53 -0800
Re: Is bool no longer a primitive data type of C/C++ ? Richard Damon <Richard@Damon-Family.org> - 2020-11-29 08:19 -0500
Re: Is bool no longer a primitive data type of C/C++ ? Tim Rentsch <tr.17687@z991.linuxsc.com> - 2020-11-29 17:42 -0800
Re: Is bool no longer a primitive data type of C/C++ ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2020-11-02 20:42 +0000
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 15:15 -0600
Re: Is bool no longer a primitive data type of C/C++ ? David Brown <david.brown@hesbynett.no> - 2020-11-02 23:04 +0100
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 16:24 -0600
Re: Is bool no longer a primitive data type of C/C++ ? Ben Bacarisse <ben.usenet@bsb.me.uk> - 2020-11-02 22:40 +0000
Re: Is bool no longer a primitive data type of C/C++ ? Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-11-02 16:23 -0800
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 17:32 -0600
Re: Is bool no longer a primitive data type of C/C++ ? David Brown <david.brown@hesbynett.no> - 2020-11-02 23:02 +0100
Re: Is bool no longer a primitive data type of C/C++ ? Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2020-11-02 09:56 -0700
Re: Is bool no longer a primitive data type of C/C++ ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-02 18:05 +0100
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 11:08 -0600
Re: Is bool no longer a primitive data type of C/C++ ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-02 18:14 +0100
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 12:17 -0600
Re: Is bool no longer a primitive data type of C/C++ ? David Brown <david.brown@hesbynett.no> - 2020-11-02 22:41 +0100
Re: Is bool no longer a primitive data type of C/C++ ? David Brown <david.brown@hesbynett.no> - 2020-11-02 22:48 +0100
Re: Is bool no longer a primitive data type of C/C++ ? Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2020-11-02 16:05 -0800
Re: Is bool no longer a primitive data type of C/C++ ? olcott <NoOne@NoWhere.com> - 2020-11-02 18:45 -0600
Re: Is bool no longer a primitive data type of C/C++ ? David Brown <david.brown@hesbynett.no> - 2020-11-03 11:35 +0100
Why macro ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-02 19:03 +0100
Re: Why macro ? scott@slp53.sl.home (Scott Lurndal) - 2020-11-02 19:05 +0000
Re: Why macro ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-03 07:41 +0100
Re: Why macro ? David Brown <david.brown@hesbynett.no> - 2020-11-03 11:38 +0100
Re: Why macro ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-03 12:39 +0100
Re: Why macro ? David Brown <david.brown@hesbynett.no> - 2020-11-03 13:10 +0100
Re: Why macro ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-03 13:23 +0100
Re: Why macro ? Bo Persson <bo@bo-persson.se> - 2020-11-03 13:45 +0100
Re: Why macro ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-03 14:26 +0100
Re: Why macro ? Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-11-03 05:46 -0800
Re: Why macro ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-03 15:10 +0100
Re: Why macro ? David Brown <david.brown@hesbynett.no> - 2020-11-03 15:49 +0100
Re: Why macro ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-03 15:56 +0100
Re: Why macro ? David Brown <david.brown@hesbynett.no> - 2020-11-03 17:25 +0100
Re: Why macro ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-03 17:29 +0100
Re: Why macro ? scott@slp53.sl.home (Scott Lurndal) - 2020-11-03 17:12 +0000
Re: Why macro ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-03 18:15 +0100
Re: Why macro ? red floyd <no.spam.here@its.invalid> - 2020-11-04 07:12 -0800
Re: Why macro ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-04 16:33 +0100
Re: Why macro ? Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-11-03 09:22 -0800
Re: Why macro ? Bart <bc@freeuk.com> - 2020-11-03 17:13 +0000
Re: Why macro ? David Brown <david.brown@hesbynett.no> - 2020-11-03 20:07 +0100
Re: Why macro ? Juha Nieminen <nospam@thanks.invalid> - 2020-11-04 13:41 +0000
Re: Why macro ? Juha Nieminen <nospam@thanks.invalid> - 2020-11-04 13:32 +0000
Re: Why macro ? Richard Damon <Richard@Damon-Family.org> - 2020-11-04 08:59 -0500
Re: Why macro ? Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-11-04 06:01 -0800
Re: Why macro ? Sjouke Burry <burrynulnulfour@ppllaanneett.nnll> - 2020-11-04 17:11 +0100
Re: Why macro ? Richard Damon <Richard@Damon-Family.org> - 2020-11-04 20:33 -0500
Re: Why macro ? David Brown <david.brown@hesbynett.no> - 2020-11-04 16:44 +0100
Re: Why macro ? Richard Damon <Richard@Damon-Family.org> - 2020-11-03 12:37 -0500
Re: Why macro ? Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-11-03 10:42 -0800
Re: Why macro ? scott@slp53.sl.home (Scott Lurndal) - 2020-11-03 19:43 +0000
Re: Why macro ? David Brown <david.brown@hesbynett.no> - 2020-11-04 09:20 +0100
Re: Why macro ? Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-11-03 03:07 -0800
Re: Why macro ? Bonita Montero <Bonita.Montero@gmail.com> - 2020-11-03 12:40 +0100
Re: Why macro ? Malcolm McLean <malcolm.arthur.mclean@gmail.com> - 2020-11-03 04:02 -0800
Re: Is bool no longer a primitive data type of C/C++ ? megonsara11@gmail.com - 2020-11-06 20:37 -0800
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