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| From | Keith Thompson <kst-u@mib.org> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... |
| Date | 2015-06-11 11:31 -0700 |
| Organization | None to speak of |
| Message-ID | <87y4jqgkq5.fsf@kst-u.example.com> (permalink) |
| References | (10 earlier) <56301485-e5e9-45c7-8357-9a9b21327747@googlegroups.com> <87a8w8ri4z.fsf@kst-u.example.com> <cac6bc27-17ed-4b20-8a88-45f5a8df6560@googlegroups.com> <87k2vbigmd.fsf@kst-u.example.com> <8a923aab-ebb9-4291-a8c7-8a564492e381@googlegroups.com> |
David Kleinecke <dkleinecke@gmail.com> writes:
> On Wednesday, June 10, 2015 at 11:05:25 AM UTC-7, Keith Thompson wrote:
[...]
>> What else do you think is unclear? (A suggestion: Rather than asserting
>> that the standard is unclear or inconsistent, you might consider asking
>> for clarification.)
>
> There are (in the C90 standards) at 6.1 eight different kinds of
> preprocessor tokens listed. The sixth of these is "operator". The
> operators are listed at 6.1.5 and include "sizeof". Perhaps you could
> argue that this does't mean the preprocessor "recognizes" sizeof. It
> does insure that the preprocessor does not treat it as a token like
> the other keywords.
>
> I was well aware that keywoeds in general were not protected - which is
> why I excepted "sizeof".
Interesting. That appears to have been an error in the C90 standard.
In the C99 and C11 standards, "operators" are not preprocessor-tokens.
Instead, the list is:
header-name
identifier
pp-number
character-constant
string-literal
punctuator
each non-white-space character that cannot be one of the above
The preprocess treats "sizeof" as an identifier. I believe that was the
intent in C90, expressed more clearly in C99 and C11.
> As to the broader question - yes, I think the standard is an expository
> mess.
That hardly answers my question, which was "What else do you think is
unclear?".
> But I see reason to rail against it because I have no hope of
> changing it even a little. Too much of the mess is dictated by the way
> (which I deplore) that standars are written.
>
> In my ideal world there would be no standards - just a test suite. The
> test suite is made up of "strictly conforming programs". If a compiler
> compiles all of them to the expected result it is a conforming compiler.
I have difficulty imagining how you'd write such a test suite without a
document defining the rules of the language.
One data point: Ada has both an official standard document and a test
suite.
[...]
--
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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Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... G G <gdotone@gmail.com> - 2015-05-07 17:12 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-05-07 18:18 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... G G <gdotone@gmail.com> - 2015-05-07 20:16 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... mark.bluemel@gmail.com - 2015-05-08 01:09 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Tim Prince <tprince@computer.org> - 2015-05-08 09:16 -0400
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-05-08 08:03 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-05-08 10:30 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... jadill33@gmail.com - 2015-05-08 11:12 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-05-08 11:22 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-05-08 18:42 +0000
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Bartc <bc@freeuk.com> - 2015-05-08 19:25 +0100
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Stephen Sprunk <stephen@sprunk.org> - 2015-05-08 15:12 -0500
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Bartc <bc@freeuk.com> - 2015-05-08 22:38 +0100
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Ian Collins <ian-news@hotmail.com> - 2015-05-09 11:01 +1200
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Tim Rentsch <txr@alumni.caltech.edu> - 2015-05-10 09:19 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-05-10 11:26 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Tim Rentsch <txr@alumni.caltech.edu> - 2015-05-11 21:31 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-05-12 05:50 +0000
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-05-12 10:05 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Tim Rentsch <txr@alumni.caltech.edu> - 2015-05-12 11:10 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-05-12 12:59 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Tim Rentsch <txr@alumni.caltech.edu> - 2015-05-22 08:11 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-05-22 11:20 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Tim Rentsch <txr@alumni.caltech.edu> - 2015-05-24 07:59 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-05-24 13:44 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Tim Rentsch <txr@alumni.caltech.edu> - 2015-05-12 11:09 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-05-12 11:02 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Tim Rentsch <txr@alumni.caltech.edu> - 2015-05-22 08:01 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Waldek Hebisch <hebisch@antispam.uni.wroc.pl> - 2015-06-08 01:06 +0000
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-06-07 19:12 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... James Kuyper <jameskuyper@verizon.net> - 2015-06-08 11:28 -0400
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Waldek Hebisch <hebisch@antispam.uni.wroc.pl> - 2015-06-09 12:23 +0000
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... David Kleinecke <dkleinecke@gmail.com> - 2015-06-08 10:56 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-06-08 11:32 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Bartc <bc@freeuk.com> - 2015-06-08 19:40 +0100
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Richard Heathfield <rjh@cpax.org.uk> - 2015-06-08 20:03 +0100
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-06-08 13:43 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-06-08 21:03 +0000
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-06-08 14:52 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... David Kleinecke <dkleinecke@gmail.com> - 2015-06-09 08:30 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-09 16:48 +0100
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-06-09 08:55 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... David Kleinecke <dkleinecke@gmail.com> - 2015-06-10 10:09 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-06-10 11:05 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... David Kleinecke <dkleinecke@gmail.com> - 2015-06-11 11:04 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-06-11 11:31 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-06-11 13:49 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... David Kleinecke <dkleinecke@gmail.com> - 2015-06-12 09:00 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-11 07:25 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... David Kleinecke <dkleinecke@gmail.com> - 2015-07-11 10:04 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... James Kuyper <jameskuyper@verizon.net> - 2015-07-11 13:39 -0400
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-11 13:44 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Keith Thompson <kst-u@mib.org> - 2015-07-11 16:15 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... David Kleinecke <dkleinecke@gmail.com> - 2015-06-09 08:31 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-05-07 20:34 -0700
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... Richard Heathfield <rjh@cpax.org.uk> - 2015-05-08 09:48 +0100
Re: Could you please discuss whether casting a size_t variable to unsigned int variable is the correct way to handle... glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-05-08 05:12 +0000
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