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Groups > comp.lang.c++ > #82080
| From | Keith Thompson <Keith.S.Thompson+u@gmail.com> |
|---|---|
| Newsgroups | comp.lang.c++ |
| Subject | Re: I think references should have been const by default |
| Date | 2021-10-25 10:48 -0700 |
| Organization | None to speak of |
| Message-ID | <87bl3d2dx2.fsf@nosuchdomain.example.com> (permalink) |
| References | (11 earlier) <sl5pdi$4au$1@gioia.aioe.org> <sl5ug4$qov$1@gioia.aioe.org> <sl6ecq$11uu$1@gioia.aioe.org> <sl6go4$pjq$1@dont-email.me> <sl6l56$10d6$1@gioia.aioe.org> |
RacingRabbit@watershipdown.co.uk writes:
> On Mon, 25 Oct 2021 10:59:15 -0400
> James Kuyper <jameskuyper@alumni.caltech.edu> wrote:
>>On 10/25/21 10:19 AM, RacingRabbit@watershipdown.co.uk wrote:
>>>> call it with a pointer that's pointing to a string literal. If said
>>>> function does modify the "string" it's getting as parameter, that's UB.
>>>
>>> No idea what UB means, but what'll happen is it'll crash immediately so
>>you'll
>>> soon find out.
>>
>>UB means "Undefined Behavior", a technical term from the C standard
>>which does NOT mean "behavior for which there is no definition". It
>>means "behavior, upon use of a nonportable or erroneous program
>>construct or of erroneous data, for which this document imposes no
>>requirements" (3.4.3). Note that "this document" refers to the C
>>standard; other documents (such as compiler documentation or ABI
>>standards) might define the behavior, without changing the fact that is
>>qualifies as "undefined behavior" as far as the C standard is concerned.
>
> Any attempt to write to a read only program text area will result in a crash
> regardless of the language. It is implicit that its read only in C because
> C also provides the following initialisation which places the string
> (presumably) on the heap:
>
> char str[] = "hello world";
I suggest that you would benefit more here from asking questions than
from making assertions.
That declaration does not place anything on the heap. The contents of
str is placed on the stack if it appears within a function definition.
or in the static data area if it appears outside a function definition.
Others have addresses your errors regarding "const".
--
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
Working, but not speaking, for Philips
void Void(void) { Void(); } /* The recursive call of the void */
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I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-21 05:23 +0000
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-21 08:54 +0200
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-21 09:48 +0000
Re: I think references should have been const by default Paavo Helde <myfirstname@osa.pri.ee> - 2021-10-21 12:55 +0300
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-21 12:57 +0200
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-21 13:40 +0000
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-21 15:04 +0100
Re: I think references should have been const by default Manfred <noname@add.invalid> - 2021-10-21 16:41 +0200
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-21 14:57 +0000
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-21 14:51 +0000
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-21 12:09 -0400
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-21 23:49 +0100
Re: I think references should have been const by default "james...@alumni.caltech.edu" <jameskuyper@alumni.caltech.edu> - 2021-10-21 16:21 -0700
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-22 16:14 +0100
Re: I think references should have been const by default Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-10-22 12:04 -0700
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-22 20:47 +0100
Re: I think references should have been const by default Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-10-22 13:29 -0700
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-23 11:54 +0200
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-23 11:22 +0100
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-23 12:35 +0200
Re: I think references should have been const by default Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-10-23 13:23 +0100
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-23 13:57 +0100
Re: I think references should have been const by default Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-10-23 21:02 +0100
Re: I think references should have been const by default Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-10-23 15:07 -0700
Re: I think references should have been const by default Tim Rentsch <tr.17687@z991.linuxsc.com> - 2021-10-23 21:15 -0700
Re: I think references should have been const by default Tim Rentsch <tr.17687@z991.linuxsc.com> - 2021-10-23 21:12 -0700
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-22 11:13 +0200
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-22 19:18 -0400
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-22 04:41 +0000
Re: I think references should have been const by default Chris Vine <chris@cvine--nospam--.freeserve.co.uk> - 2021-10-23 21:30 +0100
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-25 04:51 +0000
Re: I think references should have been const by default Chris Vine <chris@cvine--nospam--.freeserve.co.uk> - 2021-10-26 00:53 +0100
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-22 09:46 +0200
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-22 15:48 +0100
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-23 12:21 +0200
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-23 12:06 +0100
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-23 18:45 +0200
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-23 18:58 +0100
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-24 12:11 +0200
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-24 23:11 +0100
Re: I think references should have been const by default Öö Tiib <ootiib@hot.ee> - 2021-10-24 16:18 -0700
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-25 00:58 +0100
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-25 08:21 +0000
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-25 09:47 +0000
Re: I think references should have been const by default Bo Persson <bo@bo-persson.se> - 2021-10-25 12:33 +0200
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-25 14:19 +0000
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-25 10:59 -0400
Re: I think references should have been const by default Manfred <noname@add.invalid> - 2021-10-25 17:56 +0200
Re: I think references should have been const by default Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-10-25 11:11 -0700
Re: I think references should have been const by default Manfred <noname@add.invalid> - 2021-10-26 17:15 +0200
Re: I think references should have been const by default Tim Rentsch <tr.17687@z991.linuxsc.com> - 2021-10-29 06:41 -0700
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-25 16:14 +0000
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-25 13:14 -0400
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-26 08:18 +0000
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-26 12:39 +0100
Re: I think references should have been const by default Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-10-26 14:29 +0100
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-26 15:11 +0100
Re: I think references should have been const by default Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-10-26 09:49 -0700
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-26 18:38 +0100
Re: I think references should have been const by default Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-10-26 11:20 -0700
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-26 20:32 +0100
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-26 22:18 +0200
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-27 04:43 +0000
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-27 08:29 +0200
Re: I think references should have been const by default Tim Rentsch <tr.17687@z991.linuxsc.com> - 2021-10-29 06:32 -0700
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-11-01 06:12 +0000
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-11-01 08:53 +0100
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-11-01 11:26 -0400
Re: I think references should have been const by default "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2021-11-02 16:19 +0100
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-11-02 12:54 -0400
Re: I think references should have been const by default Paavo Helde <myfirstname@osa.pri.ee> - 2021-11-02 23:49 +0200
Re: I think references should have been const by default "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2021-11-03 00:38 +0100
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-26 14:36 +0000
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-26 15:55 +0100
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-26 15:26 +0000
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-26 20:35 +0100
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-27 04:44 +0000
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-26 11:27 -0400
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-26 10:31 -0400
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-26 14:42 +0000
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-26 11:22 -0400
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-26 15:30 +0000
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-26 12:23 -0400
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-26 12:51 -0400
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-26 14:34 -0400
Re: I think references should have been const by default "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-10-26 12:57 -0700
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-27 07:57 +0000
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-27 08:47 +0000
Re: I think references should have been const by default JohnnyCameLater@whatsthetime.net - 2021-10-27 14:29 +0000
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-28 05:17 +0000
Re: I think references should have been const by default JohnnyCameLater@whatsthetime.net - 2021-10-28 09:30 +0000
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-29 04:47 +0000
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-29 05:11 +0000
Re: I think references should have been const by default JohnnyCameLater@whatsthetime.net - 2021-10-29 08:40 +0000
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-11-01 06:15 +0000
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-27 11:07 +0200
Re: I think references should have been const by default JohnnyCameLater@whatsthetime.net - 2021-10-27 14:30 +0000
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-27 17:30 +0200
Re: I think references should have been const by default JohnnyCameLater@whatsthetime.net - 2021-10-27 15:46 +0000
Re: I think references should have been const by default scott@slp53.sl.home (Scott Lurndal) - 2021-10-27 16:13 +0000
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-27 11:39 -0400
Re: I think references should have been const by default JohnnyCameLater@whatsthetime.net - 2021-10-27 15:51 +0000
Re: I think references should have been const by default Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-10-27 17:21 +0100
Re: I think references should have been const by default JohnnyCameLater@whatsthetime.net - 2021-10-28 09:29 +0000
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-28 11:20 +0100
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-27 12:26 -0400
Re: I think references should have been const by default Anand Hariharan <mailto.anand.hariharan@gmail.com> - 2021-10-31 09:22 -0700
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-11-01 00:13 -0400
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-28 05:20 +0000
Re: I think references should have been const by default "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-10-27 23:10 -0700
Re: I think references should have been const by default JohnnyCameLater@whatsthetime.net - 2021-10-28 09:30 +0000
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-29 04:51 +0000
Re: I think references should have been const by default JohnnyCameLater@whatsthetime.net - 2021-10-29 08:39 +0000
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-11-01 06:34 +0000
Re: I think references should have been const by default Chris Vine <chris@cvine--nospam--.freeserve.co.uk> - 2021-10-27 17:41 +0100
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-27 19:02 +0200
Re: I think references should have been const by default Chris Vine <chris@cvine--nospam--.freeserve.co.uk> - 2021-10-27 18:21 +0100
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-27 11:38 -0400
Re: I think references should have been const by default JohnnyCameLater@whatsthetime.net - 2021-10-27 15:49 +0000
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-27 12:36 -0400
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-27 04:57 +0000
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-25 18:19 +0100
Re: I think references should have been const by default Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-10-25 10:48 -0700
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-26 08:21 +0000
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-26 08:37 +0000
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-26 09:02 +0000
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-26 11:14 +0000
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-26 14:35 +0000
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-27 05:01 +0000
Re: I think references should have been const by default Tim Rentsch <tr.17687@z991.linuxsc.com> - 2021-10-29 06:34 -0700
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-26 10:43 -0400
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-26 15:21 +0000
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-26 22:32 +0200
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-27 05:04 +0000
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-26 10:42 -0400
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-26 14:48 +0000
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-26 11:52 -0400
Re: I think references should have been const by default Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-10-26 10:22 -0700
Re: I think references should have been const by default Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-10-26 10:27 -0700
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-26 14:06 -0400
Re: I think references should have been const by default Tim Rentsch <tr.17687@z991.linuxsc.com> - 2021-10-29 06:45 -0700
Re: I think references should have been const by default Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-10-29 11:11 -0700
Re: I think references should have been const by default Tim Rentsch <tr.17687@z991.linuxsc.com> - 2022-04-25 07:39 -0700
Re: I think references should have been const by default Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2022-04-25 10:59 -0700
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-26 05:29 +0000
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-26 08:53 +0200
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-26 08:23 +0000
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-26 08:40 +0000
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-26 05:18 +0000
Re: I think references should have been const by default David Brown <david.brown@hesbynett.no> - 2021-10-26 09:07 +0200
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-26 11:03 -0400
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-25 10:39 -0400
Re: I think references should have been const by default Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2021-10-25 10:56 -0700
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-25 10:30 -0400
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-25 14:39 +0000
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-25 11:05 -0400
Re: I think references should have been const by default "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-10-25 12:45 -0700
Re: I think references should have been const by default "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2021-10-26 11:20 -0700
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-25 05:00 +0000
Re: I think references should have been const by default Bart <bc@freeuk.com> - 2021-10-25 12:13 +0100
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-26 05:36 +0000
Re: I think references should have been const by default Manfred <noname@add.invalid> - 2021-10-25 16:58 +0200
Re: I think references should have been const by default "daniel...@gmail.com" <danielaparker@gmail.com> - 2021-10-22 12:28 -0700
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-21 09:12 +0000
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-21 09:52 +0000
Re: I think references should have been const by default RacingRabbit@watershipdown.co.uk - 2021-10-21 10:36 +0000
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-22 04:45 +0000
Re: I think references should have been const by default James Kuyper <jameskuyper@alumni.caltech.edu> - 2021-10-21 12:07 -0400
Re: I think references should have been const by default Paavo Helde <myfirstname@osa.pri.ee> - 2021-10-21 12:18 +0300
Re: I think references should have been const by default Bonita Montero <Bonita.Montero@gmail.com> - 2021-10-21 13:13 +0200
Re: I think references should have been const by default Bo Persson <bo@bo-persson.se> - 2021-10-21 15:08 +0200
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-22 04:45 +0000
Re: I think references should have been const by default Bonita Montero <Bonita.Montero@gmail.com> - 2021-10-22 07:55 +0200
Re: I think references should have been const by default Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2021-10-22 11:21 +0000
Re: I think references should have been const by default "Alf P. Steinbach" <alf.p.steinbach@gmail.com> - 2021-10-21 13:22 +0200
Re: I think references should have been const by default Juha Nieminen <nospam@thanks.invalid> - 2021-10-22 04:48 +0000
Re: I think references should have been const by default Manfred <noname@add.invalid> - 2021-10-21 13:57 +0200
Re: I think references should have been const by default Branimir Maksimovic <branimir.maksimovic@icloud.com> - 2021-10-21 21:27 +0000
Re: I think references should have been const by default Jorgen Grahn <grahn+nntp@snipabacken.se> - 2021-10-24 14:20 +0000
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