Chapter 11 defined the class boxType by extending the definition of the class rectangleType. In this exercise, derive the class boxType from the class rectangleType, defined in Exercise 1, add the functions to overload the operators +,, *, ==, !=, <=, <, >=, >, and pre- and post-increment and decrement operators as members of the class boxType. Also overload the operators << and >>. Overload the relational operators by considering the volume of the boxes. For example, two boxes are the same if they have the same volume.

Write the definitions of the functions of the class boxType as defined above and then write a test program that tests various operations on the class.

This is my code I am throwing many errors.

------------boxType.cpp----------

#include #include

#include "boxType.h"

using namespace std;

boxType::boxType(double side) { setDimension(side, side); }

boxType::boxType() { length = 0; width = 0; }

boxType boxType::operator++() { //increment the length and width ++length; ++width;

return *this; //return the incremented value of the object }

boxType boxType::operator++(int u) { boxType temp = *this; //use this pointer to copy //the value of the object //increment the length and width length++; width++;

return temp; //return the old value of the object }

boxType boxType::operator--() { //Decrement the length and width assert(length != 0 && width != 0); --length; width = length;

return *this; //return the incremented value of the object }

boxType boxType::operator--(int u) { boxType temp = *this; //use this pointer to copy //the value of the object

//Decrement the length and width assert(length != 0 && width != 0); length--; width = length;

return temp; //return the old value of the object }

boxType boxType::operator+ (const boxType& box) const { boxType tempBox;

tempBox.length = length + box.length; tempBox.width = tempBox.length;

return tempBox; }

boxType boxType::operator- (const boxType& box) const { boxType tempBox;

assert(length >= box.length && width >= box.width);

tempBox.length = length - box.length; tempBox.width = tempBox.length;

return tempBox; }

boxType boxType::operator*(const boxType& box) const { boxType tempBox;

tempBox.length = length * box.length; tempBox.width = tempBox.length;

return tempBox; }

bool boxType::operator== (const boxType& box) const { return (area() == box.area()); }

bool boxType::operator!= (const boxType& box) const { return (area() != box.area()); }

bool boxType::operator<= (const boxType& box) const { return (area() <= box.area()); }

bool boxType::operator< (const boxType& box) const { return (area() < box.area()); }

bool boxType::operator>= (const boxType& box) const { return (area() >= box.area()); }

bool boxType::operator> (const boxType& box) const { return (area() > box.area()); }

ostream& operator<<(ostream& osObject, const boxType& box) { osObject << "Side = " << box.length;

return osObject; }

istream& operator>>(istream& isObject, boxType& box) { isObject >> box.length; box.width = box.length; return isObject; }

--------- boxType.h-------------

#ifndef H_boxType #define H_boxType

#include #include "rectangleType.h" using namespace std;

class boxType : public rectangleType { //Overload the stream insertion and extraction operators friend ostream& operator<<(ostream&, const boxType &); friend istream& operator>>(istream&, boxType &);

public: //Overload the arithmetic operators boxType operator + (const boxType &) const; boxType operator - (const boxType &) const; boxType operator * (const boxType&) const;

//Overload the increment and decrement operators boxType operator ++ (); //pre-increment boxType operator ++ (int); //post-increment boxType operator -- (); //pre-decrement boxType operator -- (int); //post-decrement

//Overload the relational operators bool operator == (const boxType&) const; bool operator != (const boxType&) const; bool operator <= (const boxType&) const; bool operator < (const boxType&) const; bool operator >= (const boxType&) const; bool operator > (const boxType&) const;

//constructors boxType(); boxType(double side); };

#endif

----------rectangletype.cpp-----------

#include #include #include "rectangleType.h" using namespace std;

void rectangleType::setDimension(double l, double w) { if (l >= 0) length = l; else length = 0;

if (w >= 0) width = w; else width = 0; }

double rectangleType::getLength() const { return length; }

double rectangleType::getWidth()const { return width; }

double rectangleType::area() const { return length * width; }

double rectangleType::perimeter() const { return 2 * (length + width); }

rectangleType::rectangleType(double l, double w) { setDimension(l, w); }

rectangleType::rectangleType() { length = 0; width = 0; }

rectangleType rectangleType::operator++() { //increment the length and width ++length; ++width;

return *this; //return the incremented value of the object }

rectangleType rectangleType::operator++(int u) { rectangleType temp = *this; //use this pointer to copy //the value of the object //increment the length and width length++; width++;

return temp; //return the old value of the object }

rectangleType rectangleType::operator--() { //Decrement the length and width assert(length != 0 && width != 0); --length; --width;

return *this; //return the incremented value of the object }

rectangleType rectangleType::operator--(int u) { rectangleType temp = *this; //use this pointer to copy //the value of the object

//Decrement the length and width assert(length != 0 && width != 0); length--; width--;

return temp; //return the old value of the object }

rectangleType rectangleType::operator+ (const rectangleType& rectangle) const { rectangleType tempRect;

tempRect.length = length + rectangle.length; tempRect.width = width + rectangle.width;

return tempRect; }

rectangleType rectangleType::operator- (const rectangleType& rectangle) const { rectangleType tempRect;

assert(length >= rectangle.length && width >= rectangle.width);

tempRect.length = length - rectangle.length; tempRect.width = width - rectangle.width;

return tempRect; }

rectangleType rectangleType::operator*(const rectangleType& rectangle) const { rectangleType tempRect;

tempRect.length = length * rectangle.length; tempRect.width = width * rectangle.width;

return tempRect; }

bool rectangleType::operator== (const rectangleType& rectangle) const { return (area() == rectangle.area()); }

bool rectangleType::operator!= (const rectangleType& rectangle) const { return (area() != rectangle.area()); }

bool rectangleType::operator<= (const rectangleType& rectangle) const { return (area() <= rectangle.area()); }

bool rectangleType::operator< (const rectangleType& rectangle) const { return (area() < rectangle.area()); }

bool rectangleType::operator>= (const rectangleType& rectangle) const { return (area() >= rectangle.area()); }

bool rectangleType::operator> (const rectangleType& rectangle) const { return (area() > rectangle.area()); }

ostream& operator<<(ostream& osObject, const rectangleType& rectangle) { osObject << "Length = " << rectangle.length << "; Width = " << rectangle.width;

return osObject; }

istream& operator>>(istream& isObject, rectangleType& rectangle) { isObject >> rectangle.length >> rectangle.width;

return isObject; }

--------------------rectangleType.h--------------------

#ifndef H_rectangleType #define H_rectangleType

#include using namespace std; class rectangleType { //Overload the stream insertion and extraction operators friend ostream& operator<<(ostream&, const rectangleType&); friend istream& operator>>(istream&, rectangleType&);

//Overload the arithmetic operators friend rectangleType operator+(const rectangleType&, const rectangleType&); friend rectangleType operator-(const rectangleType&, const rectangleType&); friend rectangleType operator*(const rectangleType&, const rectangleType&);

//Overload the increment and decrement operators friend rectangleType operator++(rectangleType&); //pre-increment friend rectangleType operator++(rectangleType&, int); //post-increment friend rectangleType operator--(rectangleType&); //pre-decrement friend rectangleType operator--(rectangleType&, int); //post-decrement

//Overload the relational operators friend bool operator==(const rectangleType&, const rectangleType&); friend bool operator!=(const rectangleType&, const rectangleType&); friend bool operator<=(const rectangleType&, const rectangleType&); friend bool operator<(const rectangleType&, const rectangleType&); friend bool operator>=(const rectangleType&, const rectangleType&); friend bool operator>(const rectangleType&, const rectangleType&);

public: void setDimension(double l, double w); double getLength() const; double getWidth() const; double area() const; double perimeter() const; rectangleType(); rectangleType(double l, double w);

protected: double length; double width; };

#endif

------------main.cpp-------------

#include

using namespace std;

int main() { // Write your main here return 0; #include #include "rectangleType.h" #include "boxType.h"

using namespace std;

int main() { rectangleType rectangle1(10, 5); rectangleType rectangle2(8, 7); rectangleType rectangle3; rectangleType rectangle4;

cout << "rectangle1: " << rectangle1 << endl; cout << "rectangle2: " << rectangle2 << endl;

rectangle3 = rectangle1 + rectangle2; cout << "rectangle3: " << rectangle3 << endl;

rectangle4 = rectangle1 * rectangle2; cout << "rectangle4: " << rectangle4 << endl;

if (rectangle1 > rectangle2) cout << "Area of rectangle1 is greater than the area " << "of rectangle2 ." << endl; else cout << "Area of rectangle1 is less than or equal to the area " << "of rectangle2 ." << endl;

rectangle1++;

cout << "After increment the length and width of " << "rectangle1 by one unit, rectangle1: " << rectangle1 << endl;

rectangle4 = ++rectangle3;

cout << "New dimension of rectangle3: " << rectangle3 << endl; cout << "New dimension of rectangle4: " << rectangle4 << endl;

boxType box1(10); boxType box2(8); boxType box3; boxType box4;

cout << "box1: " << box1 << endl; cout << "box2: " << box2 << endl;

box3 = box1 + box2; cout << "box3: " << box3 << endl;

box4 = box1 * box2; cout << "box4: " << box4 << endl;

if (box1 > box2) cout << "Area of box1 is greater than the area " << "of box2 ." << endl; else cout << "Area of box1 is less than or equal to the area " << "of box2 ." << endl;

box1++;

cout << "After increment the side of " << "box1 by one unit, box1: " << box1 << endl;

box4 = ++box3;

cout << "New dimension of box3: " << box3 << endl; cout << "New dimension of box4: " << box4 << endl;

return 0; }