static init c struct with array filed

[user1234]

On Wednesday, 16 March 2022 at 07:27:06 UTC, test wrote:
> ```c
> struct Test {
>     int32_t a;
> }
> struct Test2 {
>     int32_t a;
>     Test arr[];
> }
> ```
>
> I need static const init Test2, then pass it to c library 
> late(third library, can not change the type def).
>
>
> I am not sure how to do it in D.

```d
extern(C) struct Test {
     int a;
}

extern(C) struct Test2 {
      int a;
      Test* arr;
}


static const Test2 t2 = Test2(2, null);

void main(){
    to_c_library(&t2);
    to_c_library(new Test2(2, null));
    Test2 local;
    to_c_library(&local);
}
```

assuming the c library takes by reference