Autoincrementar el atribuno de una clase cada vez que se genara un objeto de la misma

[erikat]

Dejo la Solucion por si alguien la necesita:

Código C++:

class Rent{
protected:
    int rentNo;
    timepoint from, to;
    Vehicle *vehicle;
    Driver *driver;
    Rent *next;
    static int lastRent;
public:
    Rent(timepoint fr, timepoint t, Vehicle *v, Driver *d, Rent *n) : from(fr), to(t), vehicle(v), driver(d), next(n){
    Rent::lastRent = 0;
    rentNo = lastRent+1;
    }
    timepoint get_from(){
        return from;
    }
    timepoint get_to(){
        return to;
    }
    Rent get_next(){
        return *next;
    }
    void set_from (timepoint c){
        from = c;
    }
    void set_to (timepoint d){
        to = d;
    }
    virtual void print(){
    rentNo = 1+lastRent++;
    cout << "VEHICLE RENT" << endl << "RentNo: " << rentNo << endl << "Vehicle: ";
    vehicle->print();
    cout << endl << "From: " << from << endl << "To: " << to << endl << "Driver: " << *driver << endl << endl;
    }
};
int Rent::lastRent = 0;
 

El main es el mismo.

:)