make the change to the program given below so that if setDenominator receive 0,

Question

make the change to the program given below so that if setDenominator receive 0, it does nothing. Don't just arbitrarily make it 2.

. Expand the following Fraction class to include all of the following  (all examples are for a fraction half that has a numerator of 1 and a denominator of 2):

*Overload ==, <, <=, >, >= operators (use the decimal values to compare);

*Overload = operator (assigns the numerator and denominator to the fraction);

*.Overload ++ so that 1/3 becomes 2/3 for example.

.*Overload -- so that 2/3 becomes 1/3 for eaxample.

.*It is OK if the numerator is negative.

include a representation of the class and

Sample output showing several different fractions and an example where the user tried to assign 0 to the denominator. Your output should show all of the methods listed above

the program is given here:

#include <iostream>
#include <string>
using namespace std;

// Fraction class declaration
class Fraction
{
public:
// The constructors
Fraction();
Fraction(int n, int d);

// getter and setter Function(method)

int getNumerator();
int getDenominator();

void setNumerator(int n);
void setDenominator(int d);

// other functions
double toDecimal();
const string toString();
void reduce();

private:
int numerator;
int denominator;
};

// Fraction class implementation
Fraction::Fraction()
{
numerator = 1;
denominator = 2;
}

Fraction::Fraction(int n, int d)
{
setNumerator(n);
setDenominator(d);
}

int Fraction::getNumerator()
{
    return numerator;
}

int Fraction::getDenominator()
{
   return denominator;
}

void Fraction::setNumerator(int n)
{
numerator = n;
}

void Fraction::setDenominator(int d)
{
if(d != 0)
     denominator = d;
else
   denominator = 2;
}

double Fraction::toDecimal()
{
return (double)numerator / denominator;
}

const string Fraction::toString()
{
string result = "";

result.append(to_string((long double)numerator));
result.append("/");
result.append(to_string((long double)denominator));

return result;
}

void Fraction::reduce()
{
    int n = numerator;
int d = denominator;
int gcd = 1;
int largest;

    if(n < 0)
         n = -n;

    if(n > d)
         largest = n;
    else
         largest = d;
   
    for(int i = largest; i >= 2; i--)
{
         if(n % i == 0 && d % i == 0)
  {
             gcd = i;
             break;
        }
    }

    numerator = numerator / gcd;
    denominator = denominator / gcd;   
}

// testing the Fraction class
int main()
{
Fraction f(11, 33);
  
cout << "Numerator: " << f.getNumerator() << endl;
cout << "Denominator: " << f.getDenominator() << endl;
cout << "Fraction: " << f.toString() << endl;

f.reduce();

cout << "When reduce: " << f.toString() << endl;
cout << "In decimal: " << f.toDecimal() << endl;

cout << endl;
system("pause");
return 0;
}

Explanation / Answer

#include <iostream>
#include <string>
using namespace std;

// Fraction class declaration
class Fraction
{
public:
// The constructors
Fraction();
Fraction(int n, int d);

// getter and setter Function(method)

int getNumerator();
int getDenominator();

void setNumerator(int n);
void setDenominator(int d);

// other functions
double toDecimal();
const string toString();
void reduce();

private:
int numerator;
int denominator;
};

// Fraction class implementation
Fraction::Fraction()
{
numerator = 1;
denominator = 2;
}

Fraction::Fraction(int n, int d)
{
setNumerator(n);
setDenominator(d);
}

int Fraction::getNumerator()
{
return numerator;
}

int Fraction::getDenominator()
{
return denominator;
}

void Fraction::setNumerator(int n)
{
numerator = n;
}

void Fraction::setDenominator(int d)
{
if(d != 0)
denominator = d;
//else
// denominator = 2;
//}

double Fraction::toDecimal()
{
return (double)numerator / denominator;
}

const string Fraction::toString()
{
string result = "";

result.append(to_string((long double)numerator));
result.append("/");
result.append(to_string((long double)denominator));

return result;
}

void Fraction::reduce()
{
int n = numerator;
int d = denominator;
int gcd = 1;
int largest;

if(n < 0)
n = -n;

if(n > d)
largest = n;
else
largest = d;

for(int i = largest; i >= 2; i--)
{
if(n % i == 0 && d % i == 0)
{
gcd = i;
break;
}
}

numerator = numerator / gcd;
denominator = denominator / gcd;   
}

// testing the Fraction class
int main()
{
Fraction f(11, 33);
  
cout << "Numerator: " << f.getNumerator() << endl;
cout << "Denominator: " << f.getDenominator() << endl;
cout << "Fraction: " << f.toString() << endl;

f.reduce();

cout << "When reduce: " << f.toString() << endl;
cout << "In decimal: " << f.toDecimal() << endl;

cout << endl;
system("pause");
return 0;
}

In the above program I have made three lines as comment to get result.

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