Ch15 Operator I/O Overloading

#ifndef H_CLASSRECT3
#define H_CLASSRECT3

#include <iostream>
using namespace std;

class rectangleType
{
    friend ostream& operator<<(ostream&, const rectangleType&);
    friend istream& operator>>(istream&, rectangleType&);

    public:
        void setDimension(double l, double w);
        double getLength() const;
        double getWidth() const;
        double area() const;
        double perimeter() const;
        void print() const;
        rectangleType operator+(const rectangleType&) const;
        rectangleType operator*(const rectangleType&) const;
        bool operator==(const rectangleType&) const;
        bool operator!=(const rectangleType&) const;
        rectangleType();
        rectangleType(double l, double w);
    private:
        double length;
        double width;
};

#endif