Static check if a type has constexpr static function

I am using SFINAE to detect whether a type has a specific static function defined (e.g. hello_world()):

template <typename T>
class has_helloworld {
    typedef char one;
    typedef long two;

    template <typename C>
    static one test(decltype(&C::hello_world));
    template <typename C>
    static two test(...);

   public:
    enum { value = sizeof(test<T>(0)) == sizeof(char) };
};

Example use:

static_assert(has_helloworld<T>::value,
        "Error: Type provided does not have hello_world() function defined");

However, doing it this way detects all of the method, whereas I would like to only detect static functions that are constexpr. Is that possible?