POO masina

#include <string.h>
#include <iostream>
using namespace std;
#define MAX 100

class Masina {
  protected:
    char *numar;
    char *marca;
  public:
    Masina(const char *numar = "",  const char *marca = "");
    Masina(const Masina &m);
    virtual ~Masina();
    Masina& operator = (const Masina &m);
    void setNumar(const char *numar);
    char* getNumar();
    void setMarca(const char *marca);
    char* getMarca();
    friend istream& operator>>(istream &in, Masina& m);
    friend ostream& operator<<(ostream &out, const Masina& m);
};

Masina::Masina(const char *numar,  const char *marca ) {
  this->numar = new char[strlen(numar)+1];
  strcpy(this->numar, numar);
  this->marca = new char[strlen(marca)+1];
  strcpy(this->marca, marca);
}

Masina::Masina(const Masina &m) {
  this->numar = new char[strlen(m.numar)+1];
  strcpy(this->numar, m.numar);
  this->marca = new char[strlen(m.marca)+1];
  strcpy(this->marca, m.marca);
}

Masina::~Masina() {
  delete []numar;
  delete []marca;
}

Masina& Masina::operator = (const Masina &m) {
  if(this != &m) {
    setNumar(m.numar);
    setMarca(m.marca);
  }
  return *this;
}

void Masina::setNumar(const char *numar) {
  if(strlen(this->numar)<strlen(numar)) {
    delete []this->numar;
    this->numar = new char[strlen(numar)+1];
  }
  strcpy(this->numar, numar);
}
char* Masina::getNumar() {
  return numar;
}
void Masina::setMarca(const char *marca) {
  if(strlen(this->marca)<strlen(marca)) {
    delete []this->marca;
    this->marca = new char[strlen(marca)+1];
  }
  strcpy(this->marca, marca);
}
char* Masina::getMarca() {
  return marca;
}

istream& operator>>(istream &in, Masina& m) {
  char tmp[MAX];
  cout<<"Numar: ";
  in>>tmp;
  m.setNumar(tmp);
  cout<<"Marca: ";
  in>>tmp;
  m.setMarca(tmp);
  return in;
}
ostream& operator<<(ostream &out, const Masina& m) {
  out<<"Numar: "<<m.numar<<endl;
  out<<"Marca: "<<m.marca<<endl;
  return out;
}


class MasinaElectrica:public Masina {
  protected:
    int autonomie;
  public:
    MasinaElectrica(const char *numar = "",  const char *marca = "", int autonomie =0);
    friend istream& operator>>(istream &in, MasinaElectrica& m);
    friend ostream& operator<<(ostream &out, const MasinaElectrica& m);
};

MasinaElectrica::MasinaElectrica(const char *numar,  const char *marca, int autonomie):
  Masina(numar,marca) {
  this->autonomie=autonomie;
}

istream& operator>>(istream &in, MasinaElectrica& m) {
  cout<<"Date pentru masina electrica:"<<endl;
  in>>(Masina&)m;
  cout<<"Autonomie:";
  in>>m.autonomie;
  return in;
}
ostream& operator<<(ostream &out, const MasinaElectrica& m) {
  out<<"Masina electrica"<<endl;
  out<<"-------------------------"<<endl;
  out<<"Numar: "<<m.numar<<endl;
  out<<"Marca: "<<m.marca<<endl;
  out<<"Autonomie: "<<m.autonomie<<endl;
  out<<"-------------------------"<<endl;
  return out;
}

/*********************************************************/
class MasinaCuCombustie:public Masina {
  protected:
    char *tipCarburant;
    float consum;
  public:
    MasinaCuCombustie(const char *numar = "",  const char *marca = "",
                      const char *tipCarburant="benzina", float consum =0);
    MasinaCuCombustie(const MasinaCuCombustie &m);
    virtual ~MasinaCuCombustie();
    void setTipCarburant(const char *tipCarburant);
    void setConsum(float consum);
    MasinaCuCombustie& operator= (const MasinaCuCombustie &m);
    friend istream& operator>>(istream &in, MasinaCuCombustie& m);
    friend ostream& operator<<(ostream &out, const MasinaCuCombustie& m);
};

MasinaCuCombustie::MasinaCuCombustie(const char *numar,  const char *marca,
                                     const char *tipCarburant, float consum):
  Masina(numar, marca) {
  this->tipCarburant = new char[strlen(tipCarburant)+1];
  strcpy(this->tipCarburant, tipCarburant);
  this->consum= consum;
}
MasinaCuCombustie::MasinaCuCombustie(const MasinaCuCombustie &m):Masina(m) {
  this->tipCarburant = new char[strlen(m.tipCarburant)+1];
  strcpy(this->tipCarburant, m.tipCarburant);
  this->consum= m.consum;
}
MasinaCuCombustie::~MasinaCuCombustie() {
  delete []tipCarburant;
}

void MasinaCuCombustie::setTipCarburant(const char *tipCarburant) {
  if(strlen(this->tipCarburant)<strlen(tipCarburant)) {
    delete []this->tipCarburant;
    this->tipCarburant = new char[strlen(tipCarburant)+1];
  }
}
void MasinaCuCombustie::setConsum(float consum) {
  this->consum = consum;
}
MasinaCuCombustie& MasinaCuCombustie::operator= (const MasinaCuCombustie &m) {
  if(this != &m) {
    (Masina)operator= (m);
    setTipCarburant(m.tipCarburant);
    setConsum(m.consum);
  }
  return *this;
}
istream& operator>>(istream &in, MasinaCuCombustie& m) {
  cout<<"Dati datele pentru masina cu carburant:"<<endl;
  in>>(Masina &)m;
  char tmp[MAX];
  cout<<"Carburant:";
  in>>tmp;
  m.setTipCarburant(tmp);
  cout<<"Consum:";
  in>>m.consum;
///return in;
}

ostream& operator<<(ostream &out, const MasinaCuCombustie& m) {
  out<<"Masina cu combustie"<<endl;
  out<<"-------------------------"<<endl;
  out<<"Numar: "<<m.numar<<endl;
  out<<"Marca: "<<m.marca<<endl;
  out<<"Carburant: "<<m.tipCarburant<<endl;
  out<<"Consum: "<<m.consum<<endl;
  out<<"-------------------------"<<endl;
  return out;
}

int main() {
  MasinaCuCombustie m;
  cin>>m;
  cout<<m;
  Masina m1("3DJ8233", "Dacia");
  Masina m2;
  m2= m1;
  m2.setNumar ("3DJ8234") ;
  cout<<m1<<m2;
  MasinaElectrica me("71-DJ-ABC", "Toyota", 100);

  cout<<me;
  MasinaCuCombustie mc("71-DJ-ABC", "Logan", "benzina", 7.5);
  cout<<mc;
}