Passing struct and struct[] into a template

[Taylor Gronka via Digitalmars-d-learn]

On Wednesday, 22 July 2015 at 05:02:59 UTC, Timon Gehr wrote:
> template Uks(T){
>     T query(string q){
>         T result;
>         static if(is(T==S[],S)){
>             ulong test=result.length;
>             // append
>             S newResult;
>             result~=newResult;
>         }else{
>             // assign
>         }
>         return result;
>     }
> }
>
> void main(){
>     struct U_Struct{}
>     auto res1=Uks!(U_Struct).query("email");
>     auto res2=Uks!(U_Struct[]).query("email");
> }

Oh that's phenomenal. Thanks!

For reference, the is() function can accept template parameters. 
More here, under isExpression
http://dlang.org/expression.html