42 return &t == NullObjectPtr<T>();
48 return &t != NullObjectPtr<T>();
55 return t == NullObjectPtr<T>();
61 return t != NullObjectPtr<T>();
bool isNull(const T &t)
Return true if t is a reference to the nullObject of type T.
const T * NullObjectPtr()
Return pointer to the nullObject of type T.
const NullObject * nullObjectPtr
Pointer to the unique nullObject.
bool notNull(const T &t)
Return true if t is not a reference to the nullObject of type T.
const T & NullObjectRef()
Return reference to the nullObject of type T.