Thread: loop problem

I finally have my whole program done for school... but when I add the final loop to run until the user presses ctrl-z I now get compile time errors... I don't know how else to work this in though.

Code:

#include "complex.h"
using namespace std; 

int main() {
	Complex complex; 
	//while (complex != EOF){
	cout << "Enter complex number (^Z to end): "; 
	cin  >> complex; 
	cout << complex; 
            //}
	return 0;
}

Did you include iostream? Also, did you overload the input and output operators (>> + <<) for the complex data type?

Yes... here is the whole picture.

Code:

#ifndef COMPLEX_H
#define COMPLEX_H

#include <iostream> 
using namespace std;

class Complex {
	friend ostream &operator<<( ostream&, const Complex & );
	friend istream &operator>>( istream&,  Complex & );

private:
	int real;
	int imaginary;
	};

#endif

Code:

#include "complex.h"

ostream &operator<<( ostream &output, const Complex &num ){
	output << "The real value of the complex number is " << num.real << "." << "\n" 
		   << "The imaginary value of the complex number is " << num.imaginary << "." <<"\n";
	return output; 

}

istream &operator>>( istream &input,  Complex &num ){
	input >> num.real;
	input >> num.imaginary;
	return input; 
}

Code:

#include "complex.h"

int main() {
	Complex complex;
	while !(complex == EOF){
	cout << "Enter complex number (^Z to end): ";
	cin  >> complex; 
	cout << complex; 
	}
	return 0;
}

Include the error message, that might help.

I changed main to this

Code:

#include "complex.h"

int main() {
	Complex complex;
	cout << "Enter complex number (^Z to end): ";
	while (cin  >> complex){ 
	cout << complex; 
	cout << "Enter complex number (^Z to end): ";
	}
	return 0;
}

But, for some reason it only runs through once then quits.

How is complex gonna equal EOF if it doesn't use a file?

I though ctrl-z is the same as EOF in windows.

Might be, I have never tried to use it. Why don't you just test the input for a quit value such as having both parts equal 0.

I have been wrong many times before and maybe again here, but I think EOF in Windows is Ctrl-C.

It might be that you compare the entire complex to EOF, but if you got the complex from cin, then only the real would be EOF.