Pb09. Template

// Bani.h
#pragma once
#include <iostream>
using namespace std;

template<class T>
class Bani
{
protected:
    T m_bani;
public:
    Bani();
    Bani(T);

    Bani operator+(Bani b);
    Bani operator-(Bani b);
    Bani operator*(Bani b);
    Bani operator/(Bani b);

    friend ostream& operator<<(ostream& cout, Bani b)
    {
        cout << b.m_bani;
        return cout;
    }
};

template<class T>
Bani<T>::Bani() : Bani(0) {}

template<class T>
Bani<T>::Bani(T m_bani)
{
    this->m_bani = m_bani;
}

template<class T>
Bani<T> Bani<T>::operator+(Bani b)
{
    return this->m_bani + b.m_bani;
}

template<class T>
Bani<T> Bani<T>::operator-(Bani b)
{
    return this->m_bani - b.m_bani;
}

template<class T>
Bani<T> Bani<T>::operator*(Bani b)
{
    return this->m_bani * b.m_bani;
}

template<class T>
Bani<T> Bani<T>::operator/(Bani b)
{
    return this->m_bani / b.m_bani;
}

// Pereche.h
#include <iostream>
using namespace std;

template <class T>
class Pereche
{
private:
    T comp1, comp2;
public:
    Pereche() : Pereche(0, 0) {}
    Pereche(T c1, T c2)
    {
        comp1 = c1;
        comp2 = c2;
    }

    T adunare()
    {
        return comp1 + comp2;
    }

    T scadere()
    {
        return comp1 - comp2;
    }

    T inmultire()
    {
        return comp1 * comp2;
    }

    T impartire()
    {
        return comp1 / comp2;

    }

    void afisareOp()
    {
        cout << "Rezultatul adunarii componentelor este: " << adunare() << endl;
        cout << "Rezultatul scaderii componentelor este: " << scadere() << endl;
        cout << "Rezultatul inmultirii componentelor este: " << inmultire() << endl;
        cout << "Rezultatul impartirii componentelor este: " << impartire() << endl << endl;
    }
};

// main
#include "Bani.h"
#include "Pereche.h"

template<class T>
T suma(T a, T b, T c)
{
    return a + b + c;
}

int main()
{
    int a = 5, b = 7, c = 9;
    cout << suma(a, b, c) << endl;

    double a1 = 5.6, b1 = 7.4, c1 = 9.8;
    cout << suma(a1, b1, c1) << endl;

    Bani<double> a2(5.45), b2(9.65), c2(1.27);
    cout << suma(a2, b2, c2) << endl << endl;

    Pereche<int> pInt(2, 5);
    pInt.afisareOp();

    Pereche<double> pDouble(2.4, -6.7);
    pDouble.afisareOp();

    Pereche<Bani<int>> pBaniInt(5, 7);
    pBaniInt.afisareOp();

    Pereche<Bani<double>> pBaniDouble(-23.5, 67.8);
    pBaniDouble.afisareOp();

    return 0;
}