static array in templated struct/class

[via Digitalmars-d-learn]

On Tuesday, 5 August 2014 at 18:36:35 UTC, ddos wrote:
> alias Vec4f = TVector!(float,4);
> alias Vec3f = TVector!(float,3);
>
> class TVector(T,int n)
> {
> 	T[n] val;
> ...
>
> TVector as class does work as expected, as a struct i get the 
> following errors, but why?
>
> struct Vector.TVector!(float, 4).TVector no size yet for 
> forward reference
> struct Vector.TVector!(float, 3).TVector no size yet for 
> forward reference

Can you show the complete code? I cannot reproduce this with 
either latest DMD git, DMD 2.065, or LDC 0.13.0:

     alias Vec4f = TVector!(float,4);
     alias Vec3f = TVector!(float,3);

     struct TVector(T,int n)
     {
         T[n] val;
     }

     Vec3f a;
     Vec4f b;