https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115807
Bug ID: 115807
Summary: C++23 P0943R6 <stdatomic.h> does't qualify std::atomic
in #define _Atomic properly
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: mital at mitalashok dot co.uk
Target Milestone: ---
https://wg21.link/P0943R6 / https://eel.is/c++draft/stdatomic.h.syn says
`#define _Atomic` should look more like this:
```
template<typename _Tp>
using __std_atomic = std::atomic<_Tp>;
#define _Atomic(_Tp) __std_atomic<_Tp>
```
Though `#define _Atomic(_Tp) ::std::atomic<_Tp>` should also work.
The problem with the current `#define _Atomic(_Tp) std::atomic<_Tp>` is that
this doesn't work:
```
#include <stdatomic.h>
namespace my::std {
_Atomic(int) x;
}
```
