| Issue |
149965
|
| Summary |
C23 structure and union compatibility should allow for compatible members
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
Halalaluyafail3
|
It seems like Clang is working to support C23 new tag compatibility rules, however there are some issues currently. Here is one of them:
```c
struct A{int h;};
int main(){
extern struct A x;
enum E:int{e};
struct A{enum E h;};
extern struct A x;
}
```
Clang rejects this code because it considers the two structure types to be incompatible. They should be compatible because int and enum E are compatible, exact type equivalence is not required by the standard. The resulting composite type for x should have h as the composite type of int and enum E.
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