Default struct constructors if a struct member is a union

[Basile B.]

On Saturday, 29 June 2024 at 23:33:41 UTC, solidstate1991 wrote:
> [...]
> My question is can I initialize structs like these in one line 
> without relying on a second line? My usecase scenario doesn't 
> really allow constructors for the struct, since it's a binding 
> to an external library via C API.

Apprently that works with an anonymous union:

```d
enum TypeEnum {
     Integer32,
     Integer64,
     Float32,
     Float64,
}

struct S {

     TypeEnum type;

     union {
         int i32;
         long i64;
         float f32;
         double f64;
     }
}

S foo0 = S(TypeEnum.Integer32, 20);
S foo1 = S(TypeEnum.Integer64, 20L);
```