#include "boost/type_traits/is_enum.hpp"
#include "boost/mpl/if.hpp"

#include <iostream>

struct EnumBase    { static char const * identify() { return "Enumeration"; } };
struct GenericBase { static char const * identify() { return "Generic"    ; } };

template<typename T>
class Foo :
    public boost::mpl::if_<boost::is_enum<T>, EnumBase, GenericBase>::type
{};

enum BarEnum  { Mon, Tue, Wed };

int main()
{
    std::cout << Foo<int>::identify() << std::endl;
    std::cout << Foo<BarEnum>::identify() << std::endl;
    return 0;
}