Problem Solving with C++ (10th Edition)
Problem Solving with C++ (10th Edition)
10th Edition
ISBN: 9780134448282
Author: Walter Savitch, Kenrick Mock
Publisher: PEARSON
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Chapter 15.2, Problem 9STE

Give the definitions for the member function addValue, the copy constructor, the overloaded assignment operator, and the destructor for the following class. This class is intended to be a class for a partially filled array. The member variable numberUsed contains the number of array positions currently filled. The other constructor definition is given to help you get started.

#include <iostream>

#include <cstdlib>

using namespace std;

class PartFilledArray

{

public:

PartFilledArray(int arraySize);

PartFilledArray(const PartFilledArray& object);

~PartFilledArray();

void operator =(const PartFilledArray& rightSide);

void addValue(double newEntry);

//There would probably be more member functions

//but they are irrelevant to this exercise.

protected:

double *a;

int maxNumber;

int numberUsed;

};

PartFilledArray::PartFilledArray(int arraySize)

: maxNumber(arraySize), numberUsed(0)

{

a = new double[maxNumber];

}

(Many authorities would say that the member variables should be private rather than protected. We tend to agree. However, using protected makes for a better practice assignment, and you should have some experience with protected variables because some programmers do use them.)

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