fsfw/container/IsDerivedFrom.h

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#ifndef ISDERIVEDFROM_H_
#define ISDERIVEDFROM_H_
template<typename D, typename B>
class IsDerivedFrom {
class No {
};
class Yes {
No no[3];
};
static Yes Test(B*); // declared, but not defined
static No Test(... ); // declared, but not defined
public:
enum {
Is = sizeof(Test(static_cast<D*>(0))) == sizeof(Yes)
};
};
template<typename, typename>
struct is_same {
static bool const value = false;
};
template<typename A>
struct is_same<A, A> {
static bool const value = true;
};
template<bool C, typename T = void>
struct enable_if {
typedef T type;
};
template<typename T>
struct enable_if<false, T> { };
#endif /* ISDERIVEDFROM_H_ */