operator overload

[murva]

I have the following:

class Complex
{
public:
Complex();
Complex(int r, int i);//r:real part i:imaginary part
void printComplex();


Complex operator/(Complex c);

double real;
double imag;
};
Complex::Complex(int r,int i):real(r),imag(i){}
Complex Complex::operator/(Complex c)//(a+ib)/(c+id)=(ac+bd+i(bc-ad))/(c^2+d^2)

{
Complex div;

div.real=((real*c.real)+(imag*c.imag))/(c.real*c.real)+(c.imag*c.imag);
div.imag=((imag*c.real)-(real*c.imag))/(c.real*c.real)+(c.imag*c.imag);

return div;
}
void Complex::printComplex()
{
cout<<real<<"+"<<imag<<"i"<<endl;
}
int main(){
Complex c1(1,2), c2(5,7);
Complex c6 = c1 / c2;
cout << "c1 / c2: ";
c6.printComplex();
}

If i print separetely

((real*c.real)+(imag*c.imag))

I get 19
On

(c.real*c.real)+(c.imag*c.imag);

I get 74
but the division of the two elements gives me 49.76 and not 0.256 as expected. Why is that?

[helios]

The first refers to this->real and this->imag, and the second refers to c.real and c.imag.

Next time use [code]. It took me two more minutes than necessary to understand what the hell was going on.

[murva]

Thanks for your efforts.So how should it be, in order to get proper result?

[arun1390]

#include <iostream.h>

class Complex
{
public:
	Complex();
	Complex(int r, int i);//r:real part i:imaginary part
	void printComplex();

	Complex operator/(Complex c);

	double real;
	double imag;
};

Complex::Complex():real(0),imag(0){}

Complex::Complex(int r,int i):real(r),imag(i){}

Complex Complex::operator/(Complex c) //(a+ib)/(c+id)=(ac+bd+i(bc-ad))/(c^2+d^2)
{
	Complex div;

	div.real=((real*c.real)+(imag*c.imag))/((c.real*c.real)+(c.imag*c.imag));
	div.imag=((imag*c.real)-(real*c.imag))/((c.real*c.real)+(c.imag*c.imag));

	return div;
}

void Complex::printComplex()
{
	cout<<real<<" + "<<imag<<"i"<<endl;
}


int main()
{
	Complex c1(1,2), c2(5,7);
	Complex c6 = c1/c2;
	cout << "c1 / c2: ";
	c6.printComplex();

	return 0;
}

I included an additional pair of brackets in the formula.
You did not define your default constructor !
Main should be returning a value!

And yeah, INDENT YOR CODE and use the code tags !