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, "");
>       |                        ~~~~~~~~~^
>

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