Примеры перегрузки вычитания, умножения, деления - C++ - Ответ 1090977

#include <iostream>
 
class Number
{
private:
    double num;
 
public:
    Number() { }
    Number(double n): num(n) { }
    double getNum() const;
    Number operator +(const Number &);
    Number operator -(const Number &);
    Number operator *(const Number &);
    Number operator /(const Number &);
    Number &operator =(const Number &);
};
 
double Number::getNum() const
{
    return num;
}
 
Number Number::operator +(const Number &rhs)
{
    return Number (num + rhs.getNum());
}
 
Number Number::operator -(const Number &rhs)
{
    return Number (num - rhs.getNum());
}
 
Number Number::operator *(const Number &rhs)
{
    return Number (num * rhs.getNum());
}
 
Number Number::operator /(const Number &rhs)
{
    return Number (num / rhs.getNum());
}
 
Number &Number::operator =(const Number &rhs)
{
    if (this == &rhs)
        return *this;
 
    num = rhs.getNum();
 
    return *this;
}
 
int main()
{
    Number n1, n2, n3;
 
    n1 = 1;
    n2 = 2;
    n3 = n1 + n2;
 
    std::cout << "n1 = " << n1.getNum() << "\tn2 = " << n2.getNum() << "\tn3 = " << n3.getNum() << std::endl;
 
    n3 = n1 - n2;
 
    std::cout << "n1 = " << n1.getNum() << "\tn2 = " << n2.getNum() << "\tn3 = " << n3.getNum() << std::endl;
 
    n3 = n1 * n2;
 
    std::cout << "n1 = " << n1.getNum() << "\tn2 = " << n2.getNum() << "\tn3 = " << n3.getNum() << std::endl;
 
    n3 = n1 / n2;
 
    std::cout << "n1 = " << n1.getNum() << "\tn2 = " << n2.getNum() << "\tn3 = " << n3.getNum() << std::endl;
 
    std::cin.get();
    return 0;
}