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| From | Keith Thompson <kst-u@mib.org> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: Right C version for GCC |
| Date | 2015-11-09 18:51 -0800 |
| Organization | None to speak of |
| Message-ID | <ln1tbywoqq.fsf@kst-u.example.com> (permalink) |
| References | (11 earlier) <n1qst4$mfn$1@speranza.aioe.org> <ln1tbzx7fy.fsf@kst-u.example.com> <5929c2a2-9890-478c-b345-3b1b3d79de72@googlegroups.com> <lna8qmww0h.fsf@kst-u.example.com> <b8ead28b-711c-4c4e-9e57-64c7bd89b199@googlegroups.com> |
Malcolm McLean <malcolm.mclean5@btinternet.com> writes:
> On Tuesday, November 10, 2015 at 12:14:44 AM UTC, Keith Thompson wrote:
>> Malcolm McLean <malcolm.mclean5@btinternet.com> writes:
>>
>> > You restrict yourself to the "conservative core" of C89.
>>
>> That tells me nothing. What do you exclude from that "conservative
>> core"?
>>
> It's a fuzzy set. If something is rarely used, not in the spirit of C,
> and likely to cause problems for a future implementer, then it's
> not in the "conservative core".
> setjmp and longjmp are clearly outside the conservative core, for
> example.few people use them, they work in totally different way
> to most C functions, they're something that a future implementer
> might well decide causes too many problems.
What exactly is the point of this "conservative core"?
If you think that some future version of the C standard will drop
support for setjmp() and longjmp(), that's just ridiculous. Too much
code depends on it.
[List of things that are *in* the "conservative core" snipped; that's
not what I asked about, and I'm not going construct a list of all C89
features and subtrace your list from it to figure out what you'd
exclude.]
>> Are you suggesting that avoiding octal constants improves
>> portability? If so, I'll just cut to the chase and say that
>> you're wrong. If you don't *like* octal constants that's fine
>> (I presume you don't object to 0), but I asked about features to
>> avoid because some compilers might not support them.
>>
> We've got to consider the future. Octal might break 20 years down
> the line. I'm still compiling and running code I wrote 20 years
> ago. I've just had a complaint about the very first piece of code
> I wrote professionally. It produces an image which is too "soft"
> according to our graphics guru.
No, octal will not break 20 years from now. Sheesh!
And even if it did, a translator that replaces all octal constants by
their hexadecimal equivalents (or by the new octal constant syntax
if there is one) would be easy enough to implement. Or you could
just use an old C11 compiler, or a newer compiler with an option
to re-enable octal constants.
So you want to avoid setjmp(), longjmp(), and octal constants because
they might vanish from some future C standard or be omitted by some
C compiler that you might need to use some day. Anything else?
--
Keith Thompson (The_Other_Keith) kst-u@mib.org <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something. This is something. Therefore, we must do this."
-- Antony Jay and Jonathan Lynn, "Yes Minister"
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Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-08 16:49 +0100
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-08 19:29 +0100
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-08 11:46 -0800
Re: Right C version for GCC Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-11-08 20:03 +0000
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-08 12:18 -0800
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-08 21:14 +0100
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-08 12:25 -0800
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-08 13:06 -0800
Re: Right C version for GCC Philip Lantz <prl@canterey.us> - 2015-11-08 14:52 -0800
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-08 15:12 -0800
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-09 09:38 +0100
Re: Right C version for GCC Nick Bowler <nbowler@draconx.ca> - 2015-11-09 19:04 +0000
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-09 11:27 -0800
Re: Right C version for GCC BartC <bc@freeuk.com> - 2015-11-09 00:00 +0000
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-08 16:35 -0800
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-08 12:37 -0800
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-08 12:58 -0800
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-08 13:19 -0800
Re: Right C version for GCC Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-11-08 21:49 +0000
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-08 14:14 -0800
Re: Right C version for GCC Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-11-09 01:02 +0000
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-09 02:26 -0800
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-09 12:53 +0100
Re: Right C version for GCC Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-11-09 15:00 +0000
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-09 08:55 -0800
Re: Right C version for GCC Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-11-09 17:07 +0000
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-09 09:51 -0800
Re: Right C version for GCC jacobnavia <jacob@jacob.remcomp.fr> - 2015-11-09 19:01 +0100
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-09 19:16 +0100
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-09 11:24 -0800
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-09 20:30 +0100
Re: Right C version for GCC jacobnavia <jacob@jacob.remcomp.fr> - 2015-11-09 20:40 +0100
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-09 08:56 -0800
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-09 09:41 -0800
Re: Right C version for GCC gazelle@shell.xmission.com (Kenny McCormack) - 2015-11-09 17:44 +0000
Re: Right C version for GCC Philipp Klaus Krause <pkk@spth.de> - 2015-11-09 18:53 +0100
Re: Right C version for GCC Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-11-09 18:00 +0000
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-09 10:27 -0800
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-09 11:17 -0800
Re: Right C version for GCC glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-11-09 22:59 +0000
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-09 11:15 -0800
Re: Right C version for GCC Philipp Klaus Krause <pkk@spth.de> - 2015-11-12 16:47 +0100
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-12 09:24 -0800
Re: Right C version for GCC Philipp Klaus Krause <pkk@spth.de> - 2015-11-13 12:54 +0100
Re: Right C version for GCC Tim Rentsch <txr@alumni.caltech.edu> - 2015-11-13 12:01 -0800
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-14 10:47 -0800
Re: Right C version for GCC Philipp Klaus Krause <pkk@spth.de> - 2015-11-14 21:32 +0100
Re: Right C version for GCC Tim Rentsch <txr@alumni.caltech.edu> - 2015-11-14 16:57 -0800
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-09 11:07 -0800
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-09 20:18 +0100
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-09 11:27 -0800
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-09 20:41 +0100
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-09 12:07 -0800
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-09 21:12 +0100
Re: Right C version for GCC glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-11-09 23:13 +0000
Re: Right C version for GCC James Kuyper <jameskuyper@verizon.net> - 2015-11-09 19:02 -0500
Re: Right C version for GCC raltbos@xs4all.nl (Richard Bos) - 2015-11-10 17:52 +0000
Re: Right C version for GCC glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-11-10 21:34 +0000
Re: Right C version for GCC raltbos@xs4all.nl (Richard Bos) - 2015-11-17 22:28 +0000
Re: Right C version for GCC glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-11-18 00:51 +0000
Re: Right C version for GCC James Kuyper <jameskuyper@verizon.net> - 2015-11-17 22:26 -0500
Re: Right C version for GCC Philipp Klaus Krause <pkk@spth.de> - 2015-11-18 11:06 +0100
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-09 15:37 -0800
Re: Right C version for GCC Ian Collins <ian-news@hotmail.com> - 2015-11-10 12:54 +1300
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-09 16:14 -0800
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-09 16:37 -0800
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-09 16:56 -0800
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-09 17:25 -0800
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-10 10:37 +0100
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-09 18:06 -0800
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-09 18:51 -0800
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-10 08:40 -0800
Re: Right C version for GCC raltbos@xs4all.nl (Richard Bos) - 2015-11-10 17:55 +0000
Re: Right C version for GCC raltbos@xs4all.nl (Richard Bos) - 2015-11-10 17:50 +0000
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-12 14:32 +0100
Re: Right C version for GCC Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-11-09 10:35 +0000
Re: Right C version for GCC Philipp Klaus Krause <pkk@spth.de> - 2015-11-08 23:57 +0100
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-09 00:47 +0100
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-09 13:01 +0100
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-09 13:18 +0100
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-09 14:01 +0100
Re: Right C version for GCC Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-11-09 00:55 +0000
Re: Right C version for GCC Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-11-09 10:42 +0000
Re: Right C version for GCC Chad <cdalten@gmail.com> - 2015-11-09 03:03 -0800
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-09 03:27 -0800
Re: Right C version for GCC BartC <bc@freeuk.com> - 2015-11-09 12:28 +0000
Re: Right C version for GCC Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-11-10 09:07 +0000
Re: Right C version for GCC James Kuyper <jameskuyper@verizon.net> - 2015-11-09 07:37 -0500
Re: Right C version for GCC Philipp Klaus Krause <pkk@spth.de> - 2015-11-09 16:57 +0100
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-09 12:39 +0100
Re: Right C version for GCC James Kuyper <jameskuyper@verizon.net> - 2015-11-09 13:18 -0500
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-10 10:49 +0100
Re: Right C version for GCC Les Cargill <lcargill99@comcast.com> - 2015-11-10 19:33 -0600
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-11 13:34 +0100
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-11 06:53 -0800
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-08 17:00 -0800
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-09 13:37 +0100
Re: Right C version for GCC Philipp Klaus Krause <pkk@spth.de> - 2015-11-09 13:53 +0100
Re: Right C version for GCC BartC <bc@freeuk.com> - 2015-11-09 21:54 +0000
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-09 15:45 -0800
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-10 11:14 +0100
Re: Right C version for GCC BartC <bc@freeuk.com> - 2015-11-10 10:53 +0000
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-10 03:14 -0800
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-10 13:00 +0100
Re: Right C version for GCC BartC <bc@freeuk.com> - 2015-11-10 12:39 +0000
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-10 15:11 +0100
Re: Right C version for GCC Philipp Klaus Krause <pkk@spth.de> - 2015-11-10 16:16 +0100
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-10 16:35 +0100
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-10 08:54 -0800
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-10 18:56 +0100
Re: Right C version for GCC Philipp Klaus Krause <pkk@spth.de> - 2015-11-10 23:27 +0100
Re: Right C version for GCC raltbos@xs4all.nl (Richard Bos) - 2015-11-17 22:32 +0000
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-18 08:44 +0100
Re: Right C version for GCC raltbos@xs4all.nl (Richard Bos) - 2015-11-19 10:43 +0000
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-19 12:29 +0100
Re: Right C version for GCC raltbos@xs4all.nl (Richard Bos) - 2015-11-20 11:01 +0000
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-21 15:50 +0100
Re: Right C version for GCC Philipp Klaus Krause <pkk@spth.de> - 2015-11-18 11:13 +0100
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-10 07:25 -0800
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-10 16:42 +0100
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-10 08:48 -0800
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-11 01:08 -0800
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-11 13:43 +0100
Re: Right C version for GCC Les Cargill <lcargill99@comcast.com> - 2015-11-11 08:27 -0600
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-11 16:27 +0100
Re: Right C version for GCC David Thompson <dave.thompson2@verizon.net> - 2015-12-06 07:57 -0500
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-12-06 22:34 +0100
Re: Right C version for GCC Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-12-06 22:41 +0000
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-12-07 09:47 +0100
Re: Right C version for GCC supercat@casperkitty.com - 2015-12-07 07:30 -0800
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-12-07 17:30 +0100
Re: Right C version for GCC supercat@casperkitty.com - 2015-12-07 10:17 -0800
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-12-07 21:29 +0100
Re: Right C version for GCC supercat@casperkitty.com - 2015-12-07 13:16 -0800
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-12-07 23:35 +0100
Re: Right C version for GCC jadill33@gmail.com - 2015-12-07 10:41 -0800
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-12-07 21:35 +0100
Re: Right C version for GCC Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-11-08 20:11 +0000
Re: Right C version for GCC Ian Collins <ian-news@hotmail.com> - 2015-11-09 09:57 +1300
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-08 13:06 -0800
Re: Right C version for GCC Ian Collins <ian-news@hotmail.com> - 2015-11-09 10:16 +1300
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-08 22:59 +0100
Re: Right C version for GCC Ian Collins <ian-news@hotmail.com> - 2015-11-09 12:13 +1300
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-09 00:43 +0100
Re: Right C version for GCC Ian Collins <ian-news@hotmail.com> - 2015-11-09 13:00 +1300
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-09 12:02 +0100
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-09 09:00 -0800
Re: Right C version for GCC Ian Collins <ian-news@hotmail.com> - 2015-11-10 07:25 +1300
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-09 19:35 +0100
Re: Right C version for GCC Ian Collins <ian-news@hotmail.com> - 2015-11-10 08:55 +1300
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-09 21:00 +0100
Re: Right C version for GCC Ian Collins <ian-news@hotmail.com> - 2015-11-10 09:04 +1300
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-09 21:11 +0100
Re: Right C version for GCC Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-11-09 20:18 +0000
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-09 21:21 +0100
Re: Right C version for GCC Ian Collins <ian-news@hotmail.com> - 2015-11-10 09:30 +1300
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-09 12:53 -0800
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-09 12:30 -0800
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-09 13:02 -0800
Re: Right C version for GCC BartC <bc@freeuk.com> - 2015-11-09 21:35 +0000
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-09 14:41 -0800
Re: Right C version for GCC BartC <bc@freeuk.com> - 2015-11-09 23:31 +0000
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-09 16:33 -0800
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-10 11:16 +0100
Re: Right C version for GCC Ian Collins <ian-news@hotmail.com> - 2015-11-11 08:04 +1300
Re: Right C version for GCC raltbos@xs4all.nl (Richard Bos) - 2015-11-10 18:04 +0000
Re: Right C version for GCC raltbos@xs4all.nl (Richard Bos) - 2015-11-10 18:03 +0000
Re: Right C version for GCC Ian Collins <ian-news@hotmail.com> - 2015-11-11 08:23 +1300
Re: Right C version for GCC David Brown <david.brown@hesbynett.no> - 2015-11-09 13:41 +0100
Re: Right C version for GCC supercat@casperkitty.com - 2015-11-08 13:24 -0800
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-08 23:00 +0100
Re: Right C version for GCC Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-11-08 15:18 -0800
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-09 00:35 +0100
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-08 17:03 -0800
Re: Right C version for GCC Jorgen Grahn <grahn+nntp@snipabacken.se> - 2015-11-09 12:42 +0000
Re: Right C version for GCC Keith Thompson <kst-u@mib.org> - 2015-11-08 17:51 -0800
Re: Right C version for GCC Les Cargill <lcargill99@comcast.com> - 2015-11-09 12:20 -0600
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-09 19:36 +0100
Re: Right C version for GCC BartC <bc@freeuk.com> - 2015-11-09 18:47 +0000
Re: Right C version for GCC Stephen Sprunk <stephen@sprunk.org> - 2015-11-11 00:55 -0600
Re: Right C version for GCC "Morten W. Petersen" <morphex@gmail.com> - 2015-11-12 14:39 +0100
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