Retrieves the label corresponding to the current element position.
Retrieves the string label of this IElement. Does only apply to IElements not associated with subsets of Integers.
virtual void getLabel(std::string& label) const = 0;
Returns the string label of this IElement. Does only apply to IElements not associated with subsets of Integers.
virtual const char* getLabel() const = 0;
Does not apply to IElements on subsets of Integers
