* Confusing location of error in source code
@ 2023-08-31 16:04 Alejandro Colomar
2023-09-01 6:49 ` Jonathan Wakely
0 siblings, 1 reply; 3+ messages in thread
From: Alejandro Colomar @ 2023-08-31 16:04 UTC (permalink / raw)
To: GCC
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Hi!
I've been confused for some time with a compilation error that
pointed to a slightly-off location. I wasn't seeing that I used
a temporary variable in a constant expression. The code could be
reduced to:
$ cat const.c
int
main(void)
{
int x = 42;
_Static_assert(0 || 7 > x, "");
}
$ cc -Wall -Wextra const.c
const.c: In function ‘main’:
const.c:6:26: error: expression in static assertion is not constant
6 | _Static_assert(0 || 7 > x, "");
| ~~^~~~~~~~
I think the appropriate error report should point to this other point:
6 | _Static_assert(0 || 7 > x, "");
| ~~~~~~~~~^
Cheers,
Alex
--
<http://www.alejandro-colomar.es/>
GPG key fingerprint: A9348594CE31283A826FBDD8D57633D441E25BB5
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^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Confusing location of error in source code
2023-08-31 16:04 Confusing location of error in source code Alejandro Colomar
@ 2023-09-01 6:49 ` Jonathan Wakely
2023-09-01 13:17 ` Alejandro Colomar
0 siblings, 1 reply; 3+ messages in thread
From: Jonathan Wakely @ 2023-09-01 6:49 UTC (permalink / raw)
To: Alejandro Colomar; +Cc: GCC
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On Thu, 31 Aug 2023, 17:05 Alejandro Colomar via Gcc, <gcc@gcc.gnu.org>
wrote:
> Hi!
>
> I've been confused for some time with a compilation error that
> pointed to a slightly-off location. I wasn't seeing that I used
> a temporary variable in a constant expression. The code could be
> reduced to:
>
> $ cat const.c
> int
> main(void)
> {
> int x = 42;
>
> _Static_assert(0 || 7 > x, "");
> }
> $ cc -Wall -Wextra const.c
> const.c: In function ‘main’:
> const.c:6:26: error: expression in static assertion is not constant
> 6 | _Static_assert(0 || 7 > x, "");
> | ~~^~~~~~~~
>
>
> I think the appropriate error report should point to this other point:
>
>
> 6 | _Static_assert(0 || 7 > x, "");
> | ~~~~~~~~~^
>
Please use bugzilla for bug reports.
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: Confusing location of error in source code
2023-09-01 6:49 ` Jonathan Wakely
@ 2023-09-01 13:17 ` Alejandro Colomar
0 siblings, 0 replies; 3+ messages in thread
From: Alejandro Colomar @ 2023-09-01 13:17 UTC (permalink / raw)
To: Jonathan Wakely; +Cc: GCC
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Hi Jonathan,
On 2023-09-01 08:49, Jonathan Wakely wrote:
> On Thu, 31 Aug 2023, 17:05 Alejandro Colomar via Gcc, <gcc@gcc.gnu.org>
> wrote:
>
>> Hi!
>>
>> I've been confused for some time with a compilation error that
>> pointed to a slightly-off location. I wasn't seeing that I used
>> a temporary variable in a constant expression. The code could be
>> reduced to:
>>
>> $ cat const.c
>> int
>> main(void)
>> {
>> int x = 42;
>>
>> _Static_assert(0 || 7 > x, "");
>> }
>> $ cc -Wall -Wextra const.c
>> const.c: In function ‘main’:
>> const.c:6:26: error: expression in static assertion is not constant
>> 6 | _Static_assert(0 || 7 > x, "");
>> | ~~^~~~~~~~
>>
>>
>> I think the appropriate error report should point to this other point:
>>
>>
>> 6 | _Static_assert(0 || 7 > x, "");
>> | ~~~~~~~~~^
>>
>
> Please use bugzilla for bug reports.
Sure, will do. Thanks!
Alex
>
--
<http://www.alejandro-colomar.es/>
GPG key fingerprint: A9348594CE31283A826FBDD8D57633D441E25BB5
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^ permalink raw reply [flat|nested] 3+ messages in thread
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2023-08-31 16:04 Confusing location of error in source code Alejandro Colomar
2023-09-01 6:49 ` Jonathan Wakely
2023-09-01 13:17 ` Alejandro Colomar
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