#include <boost/utility/enable_if.hpp>
#include <boost/type_traits/is_enum.hpp>

template<typename Enum>
class ElementEnum {
public:
    void TestFunction();
};

template<typename Enum,typename EnableIf=void>
class Element;

template<typename Enum>
class Element<Enum,typename boost::enable_if<boost::is_enum<Enum> >::type>
    :   public ElementEnum<Enum>
{};

enum SomeEnum {
    Monday,
    Red,
    FortyTwo,
};

void test()
{
    Element<SomeEnum> a;
    a.TestFunction();
    
    ElementEnum<SomeEnum> b;
    b.TestFunction();
}