| Issue |
161014
|
| Summary |
-Wdeclaration-after-statement dislikes _Static_assert
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
Alcaro
|
```c
int foo(void)
{
_Static_assert(2+2 == 4, "");
int a = 2;
_Static_assert(2+2 == 4, "");
a += 2;
_Static_assert(2+2 == 4, "");
return a;
}
```
-xc -Wdeclaration-after-statement
https://godbolt.org/z/Ee4aPbcd9
Result: 1x `warning: mixing declarations and code is incompatible with standards before C99 [-Wdeclaration-after-statement]`.
Expected: Since a succeeding _Static_assert does nothing, it's neither declaration nor code; therefore, omit the warning. Especially considering _Static_assert itself is incompatible with standards before C99.
Found it at winehq, they're using that warning to enforce their coding style. https://gitlab.winehq.org/wine/wine/-/merge_requests/9061#note_116902
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