initializer for struct with anonymous union.

[Danni Coy]

On Sat, Apr 11, 2026 at 4:18 PM Danni Coy <danni.coy at gmail.com> wrote:

> I currently have a linker error telling me
>
> undefined reference to `initializer for event.Event`
>
> Event is a struct with a union. Something Like
>
> struct Event
> {
>     EventType type;
>     union
>     {
>         EventA a;
>         EventB b;
>     }
> }
>
> Naming the union makes the linker errors go away.
> Can anybody tell me what is going on here?
>

ok with further investigation, linker errors come back as soon as I add the
union into the struct.

eg
  union u
  {...
  ...}
  u event;
}

why would my struct now no longer have an initializer?
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