copy constructors need documentation

[Olivier FAURE]

On Tuesday, 6 August 2019 at 09:42:09 UTC, John Colvin wrote:
> Can you not just write trivial constructors (or no constructor, 
> if struct literals are good enough for the case in question) 
> and then use factory functions if you want behaviour like that?

Let met try it...

Oh yeah, actually you can. D even does return value copy elision 
and everything.