Write a C++ program that creates an integer class Vector which represents an array of N integers allocated on the heap . The class should contain the following member data and member/friend functions: Data: Integer pointer that points where the data is stored on the heap Size of the vector (i.e. #of valid data points) Capacity of the vector (total #of data points available) Member functions Default constructor – defines size(0), capacity = size + 5 & allocates memory on heap Parametrized constructor – defines size(N), capacity = N + 5, allocates memory on heap and initializes all data to a default value X or 0 Copy constructor Destructor which removes data from heap Overloaded assignment operator=( ) Overloaded multiply operator( ) which multiplies pairwise all the elements of two vectors; V1V2 Overloaded scalar multiply operator(int scalar) that multiplies all elements of a vector by scalar; V1scalar friend function operator(int scalar, Vector &rhs); scalarV1 Overloaded operator[K] – returns the Kth element of the vector Overloaded operator[K] – which sets the Kth element to a value X friend function ostream& operator<<(ostream &os, const Vector &rhs) – which outputs all the valid elements of the vector All constructors and destructors should print respective message: “default constructor”, “parametrized constructor”, “destructor”, “copy constructor” Demonstrate the following items: Vector V1(8, 5), V2(8, 7), V3, V4(10, 8) Print out V1, V2, V3, V4 (nicely formatted) V3 = V1V2; //prints the contents of V3 V3 = V110; //print the contents of V3 V3 = 10V1; //prints the contents of V3 V4 = V1; V2[6] = 25; //prints the contents of V2 V3[i] = V2[i]; //for i = 0; i < N V2[8] = 44; //append the value 44 to V2 & print a updated V2 -----------------------------------------------------------

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Write a C++ program that creates an integer class Vector which represents an array of N integers allocated on the heap . The class should contain the following member data and member/friend functions:

Data:

Integer pointer that points where the data is stored on the heap
Size of the vector (i.e. #of valid data points)
Capacity of the vector (total #of data points available)

Member functions

Default constructor – defines size(0), capacity = size + 5 & allocates memory on heap
Parametrized constructor – defines size(N), capacity = N + 5, allocates memory on heap and initializes all data to a default value X or 0
Copy constructor
Destructor which removes data from heap
Overloaded assignment operator=( )
Overloaded multiply operator*( ) which multiplies pairwise all the elements of two vectors; V1*V2
Overloaded scalar multiply operator*(int scalar) that multiplies all elements of a vector by scalar; V1*scalar
friend function operator(int scalar, Vector &rhs); scalar*V1
Overloaded operator[K] – returns the Kth element of the vector
Overloaded operator[K] – which sets the Kth element to a value X
friend function ostream& operator<<(ostream &os, const Vector &rhs) – which outputs all the valid elements of the vector

All constructors and destructors should print respective message: “default constructor”, “parametrized constructor”, “destructor”, “copy constructor”

Demonstrate the following items:

Vector V1(8, 5), V2(8, 7), V3, V4(10, 8)
Print out V1, V2, V3, V4 (nicely formatted)
V3 = V1*V2;
//prints the contents of V3
V3 = V1*10;
//print the contents of V3
V3 = 10*V1;
//prints the contents of V3
V4 = V1;
V2[6] = 25;
//prints the contents of V2
V3[i] = V2[i];
//for i = 0; i < N
V2[8] = 44;
//append the value 44 to V2 & print a updated V2
-----------------------------------------------------------

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