https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115768
--- Comment #7 from biggs at biggs dot xyz ---
(In reply to Andrew Pinski from comment #2)
> For C++ (well with GCC extensions obvious) this would be valid:
> ```
> static constexpr const char *names[] = {
> [CE_RED] = "RED",
> [CE_GREEN] = "GREEN",
> [CE_BLUE] = "BLUE",
> };
> ```
>
> And gets optimized way.
>
> But for C23, constexpr pointers have to be null.
>
> In the original testcase you refer to `&name[0][0]` as you pass to puts.
> Since you take the address of name, it still needs to be a variable.
Replied to the wrong comment. You are saying I really want:
```cpp
#include <iostream>
enum struct Color {
RED,
GREEN,
BLUE
};
int main() {
static constexpr const char* names[] = {"RED", "GREEN", "BLUE"};
std::puts(names[static_cast<std::size_t>(Color::RED)]);
}
```
But this isn't possible in C23 because we can't initialize constexpr pointers
to static objects. We can only initialize them to nullptr
