Re: Default struct constructors if a struct member is a union

[Basile B. via Digitalmars-d-learn]

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);
```