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help with c++ complex numbers program

wildhare (3)
I need help with a program involving complex numbers, here is what i have and i am stuck what I need to add to get the program to compile and run correctly.

// Complx.h

#include <iostream>

#include <fstream>

using namespace std;

class complx

{

double real,

imag;

public:

complx( double real = 0., double imag = 0.); // constructor

~complx(); // destrcutor

friend int operator== (const complx&, const complx&);



//Sets private data members.



void Set(double new_real, double new_imaginary) {

real = new_real;

imag = new_imaginary;

}


// Complx.cpp

#include "complx.h"

complx::~complx() {

real=r; imag=i;

}

ostream &operator<< ( ostream &out_file, complx &number )

{
out_file << '(' << number.real() << ',' << number.imaginary () << ')';


return out_file;

}





extern ifstream &operator >> ( ifstream &in_file, complx &number )

{

double re, is;

char ch;

if (in_file >> ch && ch == '('&& in_file >> re >> ch && ch == ','

&& in_file >> is >> ch && ch == ')')

number.Set(re,is);

else cerr << "Finish the input"<<endl;

return in_file;

}



extern istream &operator >> ( istream &in_file, complx &number )

{

double re, is;

char ch;

if (in_file >> ch && ch == '('&& in_file >> re >> ch && ch == ','

&& in_file >> is >> ch && ch == ')')

number.Set(re,is);

else cerr << "Finish the input"<<endl;

return in_file;

}



// define constructor

complx::complx( double r, double i )

{

real = r; imag = i;

}



int operator== (const complx& a, const complx& b){


what goes here????



}


//call_complx.cpp

#include "complx.h"

int main()

{

int i=0;

complx c1, c2(3,5),in[5];

cout<< "Please input a complex number in the format of (a,b) - " << endl;

while ((cin >> in[i])&& (i<4)){

cout << in[i] << endl;

i++;

}

if (c1 == in[0] )

cout << c1 << " equals to " << in[0] << endl;

else

cout << c1 << " not equal to " << in[0]<< endl;



if (in[1] == in[2] )

cout << in[1] << " equals to " << in[2] << endl;

else

cout << in[1] << " not equal to " << in[2]<< endl;



char c; cin >> c;

return 0; //successful termination

}
closed account (9y8C5Di1)
Why do you pass variables to complx constructor that in the constructor have same identifiers as the variables within the class. The constructor has scope over a object of that class, so i believe this will cause a compilation error. And since you are only declaring the constructor within the class, you should not include identifiers, only the parameters respective datatypes.
Nabijon (3)
Try this:

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// Complx.h

#include <iostream>

#include <fstream>

using namespace std;

class complx

{

	double real, imag;

public:

	complx( double real = 0., double imag = 0.); // constructor
	~complx(); // destructor

	friend int operator== (const complx&, const complx&);
	
	friend ostream &operator<< ( ostream &out_file, complx &number );
	
	friend ifstream &operator >> ( ifstream &in_file, complx &number );
	
	friend istream &operator >> ( istream &in_file, complx &number );





	//Sets private data members.



	void Set(double new_real, double new_imaginary) 
	{
		real = new_real;
		imag = new_imaginary;

	}
};


	// Complx.cpp
	#include "complx.h"

	complx::~complx() 
	{

		//real=r; imag=i;

	}

	int operator== (const complx& a, const complx& b)
	{
		return ( a.imag == b.imag && a.real == b.real )	;
	}

	ostream &operator<< ( ostream &out_file, complx &number )

	{
		out_file << '(' << number.real << ',' << number.imag << ')';


		return out_file;

	}





	ifstream &operator >> ( ifstream &in_file, complx &number )

	{

		double re, is;

		char ch;

		if (in_file >> ch && ch == '('&& in_file >> re >> ch && ch == ','

			&& in_file >> is >> ch && ch == ')')

			number.Set(re,is);

		else cerr << "Finish the input"<<endl;

		return in_file;

	}



	istream &operator >> ( istream &in_file, complx &number )

	{

		double re, is;

		char ch;

		if (in_file >> ch && ch == '('&& in_file >> re >> ch && ch == ','

			&& in_file >> is >> ch && ch == ')')

			number.Set(re,is);

		else cerr << "Finish the input"<<endl;

		return in_file;

	}



	// define constructor

	complx::complx( double r, double i )

	{

		real = r; imag = i;

	}



	//call_complx.cpp
	#include "complx.h"

	int main()

	{

		int i=0;

		complx c1, c2(3,5),in[5];

		cout<< "Please input a complex number in the format of (a,b) - " << endl;

		while ((cin >> in[i])&& (i<4)){

			cout << in[i] << endl;

			i++;

		} 

		if (c1 == in[0] ) 

			cout << c1 << " equals to " << in[0] << endl;

		else

			cout << c1 << " not equal to " << in[0]<< endl;



		if (in[1] == in[2] ) 

			cout << in[1] << " equals to " << in[2] << endl;

		else

			cout << in[1] << " not equal to " << in[2]<< endl; 



		char c; cin >> c;

		return 0; //successful termination

	}
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