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| From | Keith Thompson <kst-u@mib.org> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: howmany -- What the F**k ? |
| Date | 2015-11-22 12:34 -0800 |
| Organization | None to speak of |
| Message-ID | <lnr3jh4vtm.fsf@kst-u.example.com> (permalink) |
| References | <XnsA556C180B2E15jamesdowallen@178.63.61.175> <lnegfkews0.fsf@kst-u.example.com> <MPG.30bae728ff5b26669a@news.eternal-september.org> <5651DAA1.6030609@verizon.net> |
James Kuyper <jameskuyper@verizon.net> writes:
> On 11/21/2015 11:40 PM, Philip Lantz wrote:
>> Keith Thompson wrote:
>>> James Dow Allen writes:
>>>> sys/types.h has
>>>> #define howmany(x,y) (((x)+((y)-1))/(y))
>>>
>>> Reported: https://cygwin.com/ml/cygwin/2015-11/msg00293.html
>>
>> The proposed fix in that thread appears to be to use _howmany instead
>> of howmany. That's not an improvement...
>
> Why not? I thought the original complaint was about the conflict with a
> user-defined identifier with the same name. Users have no right to
> expect a lack of conflict if they use identifiers with file scope that
> start with an underscore. (7.1.3p1).
I believe this program is strictly conforming. It defines the
identifier _howmany at block scope.
#include <stdio.h>
void func(void) { }
int main(void) {
void (*_howmany)(void) = func;
_howmany();
}
If including <stdio.h> results in the definition of a function-like
macro named "_howmany" that requires one or more arguments, then the
program will fail to compile, which implies that the implementation
is non-conforming.
--
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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howmany -- What the F**k ? James Dow Allen <gmail@jamesdowallen.nospam> - 2015-11-18 12:01 +0000
Re: howmany -- What the F**k ? Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-11-18 07:52 -0500
Re: howmany -- What the F**k ? "Rick C. Hodgin" <rick.c.hodgin@gmail.com> - 2015-11-18 05:14 -0800
Re: howmany -- What the F**k ? Keith Thompson <kst-u@mib.org> - 2015-11-18 08:26 -0800
Re: howmany -- What the F**k ? Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-11-18 11:44 -0500
Re: howmany -- What the F**k ? Keith Thompson <kst-u@mib.org> - 2015-11-18 09:08 -0800
Re: howmany -- What the F**k ? James Kuyper <jameskuyper@verizon.net> - 2015-11-18 08:31 -0500
Re: howmany -- What the F**k ? Keith Thompson <kst-u@mib.org> - 2015-11-18 08:25 -0800
Re: howmany -- What the F**k ? James Dow Allen <jdallen2000@yahoo.com> - 2015-11-18 11:58 -0800
Re: howmany -- What the F**k ? Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-11-18 15:14 -0500
Re: howmany -- What the F**k ? James Dow Allen <jdallen2000@yahoo.com> - 2015-11-18 17:48 -0800
Re: howmany -- What the F**k ? James Kuyper <jameskuyper@verizon.net> - 2015-11-18 21:06 -0500
Re: howmany -- What the F**k ? Eric Sosman <esosman@comcast-dot-net.invalid> - 2015-11-19 08:23 -0500
Re: howmany -- What the F**k ? Keith Thompson <kst-u@mib.org> - 2015-11-19 21:45 -0800
Re: howmany -- What the F**k ? Tim Rentsch <txr@alumni.caltech.edu> - 2015-11-20 12:55 -0800
Re: howmany -- What the F**k ? Keith Thompson <kst-u@mib.org> - 2015-11-20 03:27 -0800
Re: howmany -- What the F**k ? Philip Lantz <prl@canterey.us> - 2015-11-21 20:40 -0800
Re: howmany -- What the F**k ? James Kuyper <jameskuyper@verizon.net> - 2015-11-22 10:09 -0500
Re: howmany -- What the F**k ? Philip Lantz <prl@canterey.us> - 2015-11-22 10:18 -0800
Re: howmany -- What the F**k ? gazelle@shell.xmission.com (Kenny McCormack) - 2015-11-22 18:35 +0000
Re: howmany -- What the F**k ? Philip Lantz <prl@canterey.us> - 2015-11-22 13:10 -0800
Re: howmany -- What the F**k ? James Kuyper <jameskuyper@verizon.net> - 2015-11-22 13:57 -0500
Re: howmany -- What the F**k ? Philip Lantz <prl@canterey.us> - 2015-11-22 13:02 -0800
Re: howmany -- What the F**k ? James Kuyper <jameskuyper@verizon.net> - 2015-11-22 16:15 -0500
Re: howmany -- What the F**k ? James Kuyper <jameskuyper@verizon.net> - 2015-11-23 06:33 -0500
Re: howmany -- What the F**k ? gazelle@shell.xmission.com (Kenny McCormack) - 2015-11-23 12:17 +0000
Re: howmany -- What the F**k ? Philip Lantz <prl@canterey.us> - 2015-11-23 21:09 -0800
Re: howmany -- What the F**k ? Keith Thompson <kst-u@mib.org> - 2015-11-22 12:34 -0800
Re: howmany -- What the F**k ? James Kuyper <jameskuyper@verizon.net> - 2015-11-22 16:18 -0500
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