Re: c initialization algorithm

Path	csiph.com!eternal-september.org!feeder3.eternal-september.org!news.eternal-september.org!.POSTED!not-for-mail
From	Tim Rentsch <tr.17687@z991.linuxsc.com>
Newsgroups	comp.lang.c
Subject	Re: c initialization algorithm
Date	Sun, 13 Oct 2024 22:00:39 -0700
Organization	A noiseless patient Spider
Lines	26
Message-ID	<86cyk3xoqw.fsf@linuxsc.com> (permalink)
References	<vehee7$r8ri$1@dont-email.me> <20241013163050.897@kylheku.com>
MIME-Version	1.0
Content-Type	text/plain; charset=us-ascii
Injection-Date	Mon, 14 Oct 2024 07:00:40 +0200 (CEST)
Injection-Info	dont-email.me; posting-host="e06779884ea3dbf67bd7b93727715ea0"; logging-data="1096577"; mail-complaints-to="abuse@eternal-september.org"; posting-account="U2FsdGVkX18tDDE30nwzm6/YpbAx355/2ItThoFiZao="
User-Agent	Gnus/5.11 (Gnus v5.11) Emacs/22.4 (gnu/linux)
Cancel-Lock	sha1:ApnJu6G8zvLxwDY9dUPPVRInc+0= sha1:VrnnKzO/hmBUd6YMtqyY02oIHEE=
Xref	csiph.com comp.lang.c:388642

Show key headers only | View raw

Kaz Kylheku <643-408-1753@kylheku.com> writes:

> On 2024-10-13, Thiago Adams <thiago.adams@gmail.com> wrote:
>
>> The algorithm for C initialization as described in the standard
>> and implemented in gcc allow this.
>>
>> struct X{
>>      int a,b,c;
>> };
>>
>> int main()
>> {
>>      struct X x = {.a=1,2,3,.a=1, 2, 3};
>> }
>>
>> https://godbolt.org/z/7naedbEM6
>>
>> Basically, when a designed initializer is found the "cursor" goes
>> to that member and the following members are initialized in
>> order.
>
>  I do not suspect that therw is an observable order.  I.e. as
>  in a required order considered observable behavior.

Have you checked to C standard to see what it says about that?

Back to comp.lang.c | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

c initialization algorithm Thiago Adams <thiago.adams@gmail.com> - 2024-10-13 18:35 -0300
  Re: c initialization algorithm Kaz Kylheku <643-408-1753@kylheku.com> - 2024-10-13 23:33 +0000
    Re: c initialization algorithm Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-10-13 22:00 -0700
      Re: c initialization algorithm Thiago Adams <thiago.adams@gmail.com> - 2024-10-14 08:14 -0300
        Re: c initialization algorithm Thiago Adams <thiago.adams@gmail.com> - 2024-10-15 08:12 -0300
          Re: c initialization algorithm Thiago Adams <thiago.adams@gmail.com> - 2024-10-15 08:14 -0300
            Re: c initialization algorithm Kaz Kylheku <643-408-1753@kylheku.com> - 2024-10-15 20:30 +0000

csiph-web