Hi Andrew,
> >> +/* Used both in the ENVELOPE message to UICC and response from UICC */
> >> +struct stk_envelope_call_control {
> >> + /* Exactly one of the following 5 fields must be present */
> >
> > Why are we not using a union then?
>
> We don't know which one of 5 is valid if it's a union. We could add a
> field to indicate that but I guess it's simpler the way it is.
It seems like a type + union might be better for the consumers of this
structure though. Otherwise they have to check up to 5 structs for emptiness
before figuring out what the type actually is. Your call.
Regards,
-Denis
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