Function operator!=

dlib/smart_pointers/shared_ptr_abstract.h:280–283

    template<typename T, typename U>
    bool operator!= (
        const shared_ptr<T>& a, 
        const shared_ptr<U>& b
    ) { return a.get() != b.get(); }
    /*!
        ensures
            - returns a.get() != b.get()