https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111269
--- Comment #2 from Alejandro Colomar <alx at kernel dot org> --- Hi Andrew, On 2023-09-01 18:55, pinskia at gcc dot gnu.org wrote: > It is pointing to the whole expression and just the outermost operator, || . That's what I suspected. > > Now the C++ front-end gives a better location and information on why it is not > a constant expression: > <source>: In function 'int main()': > <source>:11:26: error: non-constant condition for static assertion > 11 | _Static_assert(0 || 7 > x, ""); > | ~~^~~~~~~~ > <source>:11:33: error: the value of 'x' is not usable in a constant expression > 11 | _Static_assert(0 || 7 > x, ""); > | ^ > <source>:9:13: note: 'int x' is not const > 9 | int x = 42; > | ^ > > > The C front-end could do better ... Yep, g++ seems good here. If it's something easy that I could do, I'd love some pointer to the code I should look at to do the same that the C++ front end does. Cheers, Alex
