AaronBallman wrote:
> So one usability issue I noticed that we also had in GCC is that the warning
> about declaring structs in function prototypes (-Wvisibility) does not make
> sense anymore and becomes annoying. We turned it off in C23 for complete (but
> not for incomplete) structs) without tag.
Good to know! On the one hand, the type is *not* visible, but on the other
hand, it can be compatible so you can call the function now I suppose. I had
seen that and left the diagnostic on just so users didn't confuse these two
situations:
```
struct S { int x; } f(void); // Can use struct S outside of f
void g(struct S { int x; }); // Cannot use struct S outside of g
```
but that doesn't necessarily seem worth leaving the diagnostic on for.
https://github.com/llvm/llvm-project/pull/132939
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