Path: csiph.com!weretis.net!feeder8.news.weretis.net!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From: Keith Thompson <Keith.S.Thompson+u@gmail.com>
Newsgroups: comp.lang.c
Subject: Re: Implicit String-Literal Concatenation
Date: Thu, 29 Feb 2024 13:45:26 -0800
Organization: None to speak of
Lines: 47
Message-ID: <87o7bzrll5.fsf@nosuchdomain.example.com>
References: <urdsob$1e8e4$7@dont-email.me> <urj1qv$2p32o$1@dont-email.me> <urk6um$33nqv$1@dont-email.me> <urlgfn$3d1ah$3@dont-email.me> <urlmo7$3eg2j$1@dont-email.me> <urn6sv$3s62i$2@dont-email.me> <urnbh6$3t14d$1@dont-email.me> <87frxcuv87.fsf@nosuchdomain.example.com> <urq4fe$lapm$1@dont-email.me> <urq7fd$lupv$1@dont-email.me> <urqrsu$q361$1@dont-email.me>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 8bit
Injection-Info: dont-email.me; posting-host="2beb5206cb1be4986a7eae51046cf684"; logging-data="873237"; mail-complaints-to="abuse@eternal-september.org";	posting-account="U2FsdGVkX1+8Icgfe4lhWBCQt6p/mrAH"
User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux)
Cancel-Lock: sha1:vyDOdfPDQvKep/5RE80Eeq3PRBM= sha1:gWOEY6LOs0LClVS1P1Khrmhkmd0=
Xref: csiph.com comp.lang.c:383202

"Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> writes:
> On 2/29/2024 7:22 AM, Richard Harnden wrote:
>> On 29/02/2024 14:31, bart wrote:
[...]
>>> Not here:
>>>
>>>      char s[]  = "ABC";
>>>      char t[3] = "DEF";
>>>
>>> The "DEF" string doesn't end with a zero.
>> And is, therefore, not a string.
> [...]
>
> Right. However, is this a string or two embedded strings:
>
> char x[] = "ABC\0DEF"

Is *what* a string or two embedded strings?

x as a whole does not contain a string, but there are 8 strings within it.

> _____________________
> #include <stdio.h>
>
> int main()
> {
>     char x[] = "ABC\0DEF";
>
>     printf("%s\n", x);
>     printf("%s", x + 4);
>
>     return 0;
> }
> _____________________
>
> Any undefined behavior here?

No, and none in this:

    for (size_t i = 0; i < sizeof x; i ++) {
        printf("%s\n", x+i);
    }

-- 
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
Working, but not speaking, for Medtronic
void Void(void) { Void(); } /* The recursive call of the void */