Quote from "dmd/html/d/attribute.html":
> The static attribute applies to functions and data.
> It means that the declaration does not apply to a
> particular instance of an object, but to the type
> of the object.

<< << sniplet 1 >> >>
static int check;

<< << sniplet 2 >> >>
static int check(){
    return 0;
}

Both declarations are not inside of a struct/class.

Thomas