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| From | Ike Naar <ike@iceland.freeshell.org> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: Rationale for |
| Date | 2011-05-17 06:09 +0000 |
| Organization | A noiseless patient Spider |
| Message-ID | <slrn3vfsit4497.aoi.ike@iceland.freeshell.org> (permalink) |
| References | (2 earlier) <iqlv7u$oqn$1@dont-email.me> <iqr9ck$t76$1@usenet01.boi.hp.com> <lnr57yfz42.fsf@nuthaus.mib.org> <0.61635c98e980b76d7f74.20110516230009BST.87tycuux06.fsf@bsb.me.uk> <iqsqmq$63s$1@dont-email.me> |
On 2011-05-17, Shao Miller <sha0.miller@gmail.com> wrote:
> Speaking of which, does anyone have any clue as to the rationale behind
> why, in:
>
> int main(void) {
> char c = 'C';
> char * cp = &c;
> const char * ccp = &c;
> char ** cpp = &cp;
> #ifdef NOPE
> const char ** ccpp = &cp;
> #endif
> const char ** ccpp = &ccp;
>
> return 0;
> }
>
> we are not permitted to (in a standard sense) "suddenly" 'const'-qualify
> the doubly-pointed-to type? It would appear that 6.7.3p9 prevents us
> from having compatible types there, and I could understand not wanting
> to allow for the _removal_ of 'const' qualification, but couldn't it be
> helpful to add it?
>
> Is it for symmetry? Is it because the rules might be too complicated? :)
Have you read http://c-faq.com/ansi/constmismatch.html ?
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I need help janus <emekamicro@gmail.com> - 2011-05-14 04:05 -0700
Re: I need help "Heinrich Wolf" <invalid@invalid.invalid> - 2011-05-14 13:30 +0200
Re: I need help "Joachim Schmitz" <jojo.nospam@schmitz-digital.de> - 2011-05-14 13:46 +0200
Re: I need help "Heinrich Wolf" <invalid@invalid.invalid> - 2011-05-14 14:20 +0200
Re: I need help Columbus sailed the ocean China Blue <chine.bleu@yahoo.com> - 2011-05-14 04:48 -0700
Re: I need help "Joachim Schmitz" <jojo.nospam@schmitz-digital.de> - 2011-05-14 13:39 +0200
Re: I need help "Joachim Schmitz" <jojo.nospam@schmitz-digital.de> - 2011-05-14 13:44 +0200
Re: I need help "Heinrich Wolf" <invalid@invalid.invalid> - 2011-05-14 14:23 +0200
Re: I need help "Joachim Schmitz" <jojo.nospam@schmitz-digital.de> - 2011-05-16 16:47 +0200
Re: I need help James Kuyper <jameskuyper@verizon.net> - 2011-05-14 09:14 -0400
Re: I need help "Joachim Schmitz" <jojo.nospam@schmitz-digital.de> - 2011-05-16 16:43 +0200
Re: I need help Keith Thompson <kst-u@mib.org> - 2011-05-16 08:23 -0700
Re: I need help Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-05-16 23:00 +0100
Rationale for Shao Miller <sha0.miller@gmail.com> - 2011-05-16 23:40 -0500
Re: Rationale for Some of 6.7.3p9? Shao Miller <sha0.miller@gmail.com> - 2011-05-16 23:43 -0500
Re: Rationale for Some of 6.7.3p9? Heikki Kallasjoki <see@end.of.message.invalid> - 2011-05-17 06:06 +0000
Re: Rationale for Some of 6.7.3p9? Heikki Kallasjoki <see@end.of.message.invalid> - 2011-05-17 06:13 +0000
Re: Rationale for Some of 6.7.3p9? Angel <angel+news@spamcop.net> - 2011-05-17 14:03 +0000
Re: Rationale for Some of 6.7.3p9? Shao Miller <sha0.miller@gmail.com> - 2011-05-17 10:19 -0400
Re: Rationale for Ike Naar <ike@iceland.freeshell.org> - 2011-05-17 06:09 +0000
Re: Rationale for Shao Miller <sha0.miller@gmail.com> - 2011-05-17 10:20 -0400
Re: I need help Columbus sailed the ocean China Blue <chine.bleu@yahoo.com> - 2011-05-14 04:45 -0700
Re: I need help Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-05-14 09:39 -0400
Re: I need help sandeep <nospam@nospam.com> - 2011-05-15 21:37 +0000
Re: I need help Eric Sosman <esosman@ieee-dot-org.invalid> - 2011-05-15 18:35 -0400
Re: I need help pete <pfiland@mindspring.com> - 2011-05-15 19:45 -0400
Re: I need help pete <pfiland@mindspring.com> - 2011-05-15 20:15 -0400
Re: I need help sandeep <nospam@nospam.com> - 2011-05-16 18:27 +0000
Re: I need help Shao Miller <sha0.miller@gmail.com> - 2011-05-16 14:45 -0400
Re: I need help Keith Thompson <kst-u@mib.org> - 2011-05-16 11:41 -0700
Re: I need help Seebs <usenet-nospam@seebs.net> - 2011-05-16 19:12 +0000
Re: I need help Keith Thompson <kst-u@mib.org> - 2011-05-16 12:30 -0700
Re: I need help Seebs <usenet-nospam@seebs.net> - 2011-05-16 20:09 +0000
Re: I need help sandeep <nospam@nospam.com> - 2011-05-16 20:35 +0000
Re: I need help Ben Bacarisse <ben.usenet@bsb.me.uk> - 2011-05-16 23:22 +0100
Re: I need help David Thompson <dave.thompson2@verizon.net> - 2011-05-24 01:19 -0400
Re: I need help Tim Rentsch <txr@alumni.caltech.edu> - 2011-05-19 00:19 -0700
Re: I need help Seebs <usenet-nospam@seebs.net> - 2011-05-19 14:37 +0000
Re: I need help Keith Thompson <kst-u@mib.org> - 2011-05-19 08:17 -0700
Re: I need help Seebs <usenet-nospam@seebs.net> - 2011-05-19 16:08 +0000
Re: I need help Tim Rentsch <txr@alumni.caltech.edu> - 2011-05-19 11:13 -0700
Re: I need help Keith Thompson <kst-u@mib.org> - 2011-05-16 08:12 -0700
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