Fraction Multiply(Fraction & lhs, Fraction & rhs)
{
Fraction ret;
ret.mNum = lhs.mNum * rhs.mNum;
ret.mDen = lhs.mDen * rhs.mDen;
ret.Reduce();
return ret;
}
int main() {
Fraction a;
Fraction b;
Fraction c;
int op;
char opchar;
init_graphics(); // Initialize graphics in msoftcon.h
a.SetAll(1); // 1 indicates that it's the 1st Fraction
b.SetAll(2); // 2 indicates that it's the 2nd Fraction
cout << "Enter an operation to perform { + - / * } ";
cin >> opchar;
switch (opchar) {
case '+':
op = FRAC_ADD;
break;
case '-':
op = FRAC_SUB;
break;
case '*':
op = FRAC_MUL;
break;
case '/':
op = FRAC_DIV;
break;
default: // If operator is illegal shut program down
cout << "Invalid operator." << endl;
return(0);
}
if((a.den == 0) || (b.den == 0)) // Fraction undefined if so
cout << "\n\nFraction is undefined.";
else { // Else Function can be worked with
c = Fraction_Do_Op(op, a, b);
cout << "\n\n";
c.Reduce(); // Reduce to simplify Fraction
cout << "Fraction value: " << c.num << "/" << c.den << endl;
cout << "Decimal value: " << FracDecVal(c) << endl;
c.DisplayMixed();
}
cout << "Press any key to continue" << endl;
cout.flush();
getch();
return(0);
}
Fraction Subtract(Fraction & lhs, Fraction & rhs)
{
Fraction ret;
if (lhs.mDen != rhs.mDen)
{
int right_denom = rhs.mDen;
int left_denom = lhs.mDen;
lhs.mNum = lhs.mNum * right_denom;
lhs.mDen = lhs.mDen * right_denom;
rhs.mNum = rhs.mNum * left_denom;
rhs.mDen = rhs.mDen * left_denom;
}
ret.mNum = lhs.mNum - rhs.mNum;
ret.mDen = rhs.mDen;
ret.Reduce();
return ret;
}