How to get BaseEnumType?

[drug via Digitalmars-d-learn]

On 31.08.2015 11:10, wobbles wrote:
>
> In std.traits there is the required isX funcitons.
>
> import std.stdio;
> import std.traits;
> void main(){
>          static if(isSomeString!Foo){
>                  writefln("String: %s", Foo.A);
>          }
>          static if(isScalarType!Bar){
>                  writefln("Integer: %s", Bar.A);
>          }
>          static if(isSomeString!Bar){
>                  writefln("String: %s", Foo.A); // wont print
>          }
>          static if(isScalarType!Foo){
>                  writefln("Integer: %s", Bar.A); // wont print
>          }
> }
>
> enum Foo { A="a", B = "b" }
> enum Bar { A=1, B=2 }
>
Thank you. But is there a way to check against not predefined type?