[C++] Constructors / Destructors

I'm a beginner programmer, and I was wondering...
I need a unique ID for my object in the game
so I thought I define a global class that holds the global id, and when I call the constructor of an object it will be incremented, while calling the destructor of that object it decrements it.
Is it true that for every constructor call there will be a corresponding destructor?
second... is it possible to compare the memory adresses (this should be a unique id enough) of the objects instead of using an id_holder?
class id_holder{
private:
    int id_count;

public:
    id_holder() {id_count = 0 ; std::cout<< "unique_id: I'm constructed"<<std::endl;}

    ~id_holder(){std::cout<<"unique_id: I'm destructed"<<std::endl;}

    void increment_id(){id_count ++;};
    void decrement_id(){id_count --;};

    int get_id() {return id_count;};

};

class BaseObject {
protected:
    void increment_id();
    void decrement_id();
public:
    virtual ~BaseObject(){decrement_id();}
    BaseObject();
    BaseObject(V2 pos, ObjectType idobj, double s, Color col);
};

BaseObject::BaseObject(){  
    //stuff
    increment_id();
    unique_id = bObj_id_counter.get_id();
}


BaseObject::BaseObject(V2 pos, ObjectType idobj, double s, Color col){
    //stuff
    increment_id();
    unique_id = bObj_id_counter.get_id();
}