Private struct constructor

[Simen Kjærås]

On Thursday, 4 October 2018 at 08:52:50 UTC, Ritchie wrote:
> I apologize for not making it clear. I was talking about the 
> private constructor only. The @disable this() is there to 
> prevent struct literal syntax and the other disables really 
> have no reason to be there for the purpose of this question.
>
> Oddly enough I asked this because I was working on something 
> and was able to call the private constructor from another 
> module, but then I created the run.dlang.io snippet to demo my 
> problem.

Right. Reduced your example to this:

module bar;
struct S() {
     private this()(int n) {}
}

module foo;
unittest {
     import bar;
     auto a = S!()(3);
}

This is apparently a known issue:

https://issues.dlang.org/show_bug.cgi?id=18979

which is basically just a special case of this issue:

https://issues.dlang.org/show_bug.cgi?id=2775

--
   Simen