Distinguish recursive Templates

[Manfred Nowak via Digitalmars-d-learn]

Timon Gehr wrote:

> template getDepth(T){
>      static if(is(T==Set!S,S)) enum getDepth=1+getDepth!S;
>      else enum getDepth=0;
> }

Thx. Seems that I have to relearn a lot.

-manfred