Initialization of struct containing anonymous union

[Carl Sturtivant via Digitalmars-d-learn]

On Monday, 14 August 2017 at 14:24:40 UTC, Steven Schveighoffer 
wrote:
>
> I think what the docs mean is that as soon as an anonymous 
> union is present, you can't initialize anything further than 
> the first union field.

I understood that, hence my remark that "this is not helpful".

>> So it seems I am forced to assign explicitly to each member of 
>> the struct, an ugly process.
>> 
>> What is a nice way to solve this problem?
>
> I think the only way to solve it is with a constructor:
>
> this(int ival, double xval) { i = ival; x = xval; }

As I though I made clear, I don't want write assignments to each 
variable in a 50 or 100 member struct from a library when D could 
supply a better solution. I can print out such a struct using 
writeln, but can find no way to use that text cleaned up in 
source code to create such a struct. Is D completely deficient 
here?