How to compare two types?

[Adam D. Ruppe via Digitalmars-d-learn]

There's two ways:

static if(is(One == Two)) {

}


That compares the static types in a form of conditional 
compilation. http://dlang.org/expression.html#IsExpression

If you want to compare the runtime type of a class object, you 
can do:

if(typeid(obj_one) == typeid(obj_two))

that should tell you if they are the same dynamic class type.