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| From | Keith Thompson <Keith.S.Thompson+u@gmail.com> |
| Newsgroups | comp.std.c |
| Subject | Re: int n = {{0}}; |
| Date | Sun, 03 Dec 2023 14:00:39 -0800 |
| Organization | None to speak of |
| Lines | 35 |
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Tim Rentsch <tr.17687@z991.linuxsc.com> writes:
> Keith Thompson <Keith.S.Thompson+u@gmail.com> writes:
>> Citations are from N1570 (C11 draft). I don't think there are any
>> relevant differences in other editions or drafts of the standard.
>>
>> Quick summary: Why is
>> int n = {{0}};
>> undefined behavior rather than a constraint violation?
>
> Because there is no practical benefit to changing what the
> standard says now.
Do you have an opinion about whether it should have been specified as a
constraint violation rather than undefined behavior in the first place?
[...]
> There's no practical benefit to changing it. The current rule
> has been in place since the original ANSI C standard, more than
> 30 years ago. Whatever the motivation may have been at that
> time, there is no incentive to change the rules now; compilers
> already give diagnostics in such cases, even though they don't
> have to. Changing the rules would mean throwing away a degree
> of freedom with no significant benefit.
It would remove a degree of freedom for implementers, one that few if
any currently take advantage of. Meaningless degrees of freedom for
implementers do not help users.
[...]
--
Keith Thompson (The_Other_Keith) Keith.S.Thompson+u@gmail.com
Will write code for food.
void Void(void) { Void(); } /* The recursive call of the void */
Back to comp.std.c | Previous | Next — Previous in thread | Next in thread | Find similar
int n = {{0}}; Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2023-10-26 19:57 -0700
Re: int n = {{0}}; Richard Damon <Richard@Damon-Family.org> - 2023-10-28 09:41 -0700
Re: int n = {{0}}; Tim Rentsch <tr.17687@z991.linuxsc.com> - 2023-12-03 11:23 -0800
Re: int n = {{0}}; Keith Thompson <Keith.S.Thompson+u@gmail.com> - 2023-12-03 14:00 -0800
Re: int n = {{0}}; Tim Rentsch <tr.17687@z991.linuxsc.com> - 2024-01-18 17:52 -0800
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