Check if template argument is inherited from class

Following an example from Stroustrup:

template<class Test, class Base>
struct AssertSameOrDerivedFrom {
  AssertSameOrDerivedFrom() { &constraints; }
public:
  static void constraints() {
    Test *pd = 0;
    Base *pb = pd;
  }
};

template<class T>
struct YourClass {
  YourClass() {
    AssertSameOrDerivedFrom<T, CBaseClass>();
  }
};

In C++0x, this becomes:

template<class T>
struct YourClass {
  static_assert(std::is_base_of<CBaseClass, T>::value);
};