mesx

#include <stdio.h>#include <math.h>#include <iostream>using namespace std;#define N 3class Vector3f{    public:        float polje[N];        Vector3f();        Vector3f(float, float, float);        Vector3f(float a[3]);        Vector3f(const Vector3f &);        Vector3f& operator = (const Vector3f &temp){            if(this != &temp){             this->polje[0] = temp.polje[0];            this->polje[1] = temp.polje[1];            this->polje[2] = temp.polje[2];            }            return *this;        }        //sale = sale + tena        //sale += tena        Vector3f& operator += (const Vector3f &temp){            this->polje[0] = this->polje[0] + temp.polje[0];            this->polje[1] = this->polje[1] + temp.polje[1];            this->polje[2] = this->polje[2] + temp.polje[2];            return *this;        }        Vector3f& operator -= (const Vector3f &);        Vector3f& operator *= (float temp){            this->polje[0] = this->polje[0] * temp;            return *this;        }        Vector3f& operator + (const Vector3f &temp) const{            // this upucuje na lijevu stranu operatora kojeg preopterecujemo            // npr c= a + b, ako preopt +, this upucuje na a;            Vector3f rez = *this;   // kopiramo a u rez;            rez += temp;            // koristimo vec preoptereceni operator +=             return rez;        }        bool operator== (const Vector3f &temp) const{            bool nest;            if ( this->polje[0] == temp.polje[0] &&                  this->polje[1] == temp.polje[1] &&                 this->polje[2] == temp.polje[2] ) nest = 1;            else nest = 0;            return nest;        }        bool operator !=(const Vector3f &temp) const{            bool nest;            if (*this == temp) nest=0;            else nest=1;            return nest;        }        float& operator[](unsigned int temp){             return this->polje[temp];        }        Vector3f& vec_produkt(Vector3f& temp){            Vector3f rez;            rez.polje[0] = this->polje[1] * temp.polje[2] - temp.polje[1] * this->polje[2];            rez.polje[1] = this->polje[0] * temp.polje[2] - temp.polje[0] * this->polje[2];            rez.polje[2] = this->polje[0] * temp.polje[1] - temp.polje[0] * this->polje[1];            rez.ispisi();            return rez;        }        void ispisi();};int main(){    Vector3f prvi;    prvi.ispisi();    Vector3f drugi(1,2,3);    drugi.ispisi();    Vector3f treci(prvi);    treci.ispisi();        float b[3]{7,8,9};    Vector3f tena(b);    tena.ispisi();        Vector3f sale(2,3,4);    sale.ispisi();    sale += tena;    sale *= 5;    cout << "sale " << endl;    sale.ispisi();    Vector3f beba;    beba = sale + tena;    beba.ispisi();    beba = sale;    if (beba != sale) cout << "da" << endl;    else cout << "ne " << endl;    cout << beba[2] << endl;    Vector3f jedan(1,1,1);    Vector3f produkt;    produkt = jedan.vec_produkt(drugi);    produkt.ispisi();    return 0;}Vector3f::Vector3f(){    for( int i=0; i<3; i++){        polje[i]=0;    }}void Vector3f::ispisi(){    cout << "Vector3f: " << endl;    for( int i=0; i<3; i++){        cout << polje[i] << "\t";    }    cout << endl;}Vector3f::Vector3f(float x,float y,float z){       polje[0]=x;       polje[1]=y;       polje[2]=z;}Vector3f::Vector3f(const Vector3f &temp){    for( int i=0; i<3; i++){        polje[i] = temp.polje[i];    }}Vector3f::Vector3f(float a[3]){    for( int i=0; i<3; i++) polje[i]=a[i];}