Samples/ComplexNumber/complexNumber.cpp at master · r2d2Proton/Samples · GitHub

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/*----------------------------------------------------------------------------+
|       Name:  Jerome Richards                                                |
|     Course:  CNS-1250 Section F01                                           |
| Instructor:  Dr. Afsaneh Minaie                                             |
|                                                                             |
|       File:  complexNumber.cpp                                              |
|                                                                             |
|    Purpose:  ComplexNumber implementation                                   |
+----------------------------------------------------------------------------*/
#include <iostream>
#include <math.h>

using namespace std;

#include "complexNumber.h"


/**
 * Purpose:  Default constructor - to initialize data members
 *
 *      Parameters:  none
 *  Pre-conditions:  none
 * Post-conditions:  none
 *        Returns :  none
*/
ComplexNumber::ComplexNumber()
{
	itsReal = 0.0;
	itsImag = 0.0;
}


/**
 * Purpose:  Overloaded constructor
 *
 *      Parameters:  real      the real part of the complex number
 *                   imag      the imaginary part of the complex number
 *
 *  Pre-conditions:  none
 * Post-conditions:  none
 *        Returns :  none
*/
ComplexNumber::ComplexNumber( double real, double imag )
{
	itsReal = real;
	itsImag = imag;
}


/**
 * Purpose:  Add two complex numbers together
 *
 *      Parameters:  theCN     a ComplexNumber object that will be used
 *                             during the addition operation
 *
 *  Pre-conditions:  none
 * Post-conditions:  none
 *
 *        Returns :  a newly created ComplexNumber object that is the sum of the
 *                   invoking object plus the object passed
*/
ComplexNumber ComplexNumber::Add( ComplexNumber theCN )
{
	ComplexNumber tmpCN;

	tmpCN.itsReal = itsReal + theCN.itsReal;
	tmpCN.itsImag = itsImag + theCN.itsImag;

	return tmpCN;
}


/**
 * Purpose:  Subtract two complex numbers
 *
 *      Parameters:  theCN     a ComplexNumber object that will be used
 *                             during the subtraction operation
 *
 *  Pre-conditions:  none
 * Post-conditions:  none
 *
 *        Returns :  a newly created ComplexNumber object that is the difference
 *                   between the invoking object and the object passed
*/
ComplexNumber ComplexNumber::Sub( ComplexNumber theCN )
{
	ComplexNumber tmpCN;

	tmpCN.itsReal = itsReal - theCN.itsReal;
	tmpCN.itsImag = itsImag - theCN.itsImag;

	return tmpCN;
}


/**
 * Purpose:  Print the complex number using cout
 *
 *      Parameters:  none
 *  Pre-conditions:  none
 * Post-conditions:  none
 *        Returns :  none
*/
void ComplexNumber::Print()
{
	if( itsImag >= 0 )
	   cout << itsReal << " + " << fabs( itsImag ) << "i";
	else
	   cout << itsReal << " - " << fabs( itsImag ) << "i";
}