need help to translate C into D

[test123]

On Tuesday, 13 September 2022 at 09:57:38 UTC, Dennis wrote:
> On Tuesday, 13 September 2022 at 09:43:46 UTC, test123 wrote:
>> This will not work since the C have no array like D.
>
> You can use a 0-size static array:
> ```D
> struct mystruct {
> 	uint32_t mask_limit;   // Limit enum value that can be tested 
> with mask.
> 	uint32_t value_count;  // Number of values after the bitfield.
> 	uint32_t[0] data;      // Bitmask + enumerated values follow.
> }
> ```
>
> Then you have to index with `mystructVar.data.ptr[i]` to avoid 
> bounds checking.

Thanks, this look nice.

What I need is init the const object at CTFE.

I try this way:

```d
     struct validate_KnownRegex_enum_init_type { const 
upb_MiniTable_Enum header; uint[2] data; }
     __gshared const validate_KnownRegex_enum_init_type 
validate_KnownRegex_enum_init = { {64, 2}, [7, 0] };
```

The problem is I can not assign it into one array (give error):

```d
     __gshared const test = cast(upb_MiniTable_Enum*) 
&validate_KnownRegex_enum_init;
     __gshared const __enums_layout = [
         test,
     ];
```

This will also not work:

```d
     __gshared const upb_MiniTable_Enum*[1] __enums_layout = [
         &validate_KnownRegex_enum_init.header,
     ];
```

Is there a way to init the __gshared fixed length 
upb_MiniTable_Enum array ?