I'm getting problems of initializing before int, and also mismatching for operator<< in C++ ComplexFractionText program.
I used Dev-C++ 5.11 and used compiler TDM-GCC 4.9.2 64-bit Release.
The project each uses the following files: Number.h, Fraction.h, Fraction.cpp, ComplexFraction.h, ComplexFraction.cpp, ComplexFractionText.cpp
The expected results I wanted by ComplexFraction program are as the following. (My apologies in preface for long-winded codes a little bit because I'm not sure which to tailor yet.)
[UPDATED] ostream & operator<<(ostream & output, const Fraction & frac1)
ComplexFractions.txt is as following
3 2 5 4
8 9 6 7
Expected OUTPUT:
Current Complex Fraction = 0
-----------------------------
1) Change Complex Fraction
2) Append Complex Fraction to file
3) Print all Complex Fractions in file
4) Quit
1
Real Denominator:2
Real Numerator:3
Imaginary Denominator:4
Imaginary Numerator:5
Current Complex Fraction = (3/2)+(5/4)i
ComplexFraction.cpp
#include <iostream>
#include "Number.h"
#include "Fraction.h"
#include "ComplexFraction.h"
using namespace std;
void ComplexFraction::print() const {
real.print();
if(imag.getNumerator() != 0) {
cout << " + ";
imag.print();
cout << "i";
}
}
void ComplexFraction::setRealAndImaginary(Fraction newReal, Fraction newImag) {
real = newReal;
imag = newImag;
}
void ComplexFraction::setReal(Fraction newReal) {
real = newReal;
}
void ComplexFraction::setImaginary(Fraction newImag) {
imag = newImag;
}
Fraction ComplexFraction::getReal() const {
return real;
}
Fraction ComplexFraction::getImaginary() const {
return imag;
}
ComplexFraction ComplexFraction::operator+(ComplexFraction complex2) {
ComplexFraction newComplex;
Fraction newReal = real + complex2.getReal();
Fraction newImag = imag + complex2.getImaginary();
newComplex.setRealAndImaginary(newReal, newImag);
return newComplex;
}
ComplexFraction ComplexFraction::operator-(ComplexFraction complex2) {
ComplexFraction newComplex;
Fraction newReal = real - complex2.getReal();
Fraction newImag = imag - complex2.getImaginary();
newComplex.setRealAndImaginary(newReal, newImag);
return newComplex;
}
ComplexFraction ComplexFraction::operator*(ComplexFraction complex2) {
ComplexFraction newComplex;
Fraction newReal = real*complex2.getReal() - imag*complex2.getImaginary();
Fraction newImag = imag*complex2.getReal() + real*complex2.getImaginary();
newComplex.setRealAndImaginary(newReal, newImag);
return newComplex;
}
ComplexFraction ComplexFraction::operator/(ComplexFraction complex2) {
ComplexFraction newComplex;
Fraction newReal = (real*complex2.getReal() + imag*complex2.getImaginary()) / (complex2.getReal()*complex2.getReal() + complex2.getImaginary()*complex2.getImaginary());
Fraction newImag = (imag*complex2.getReal() - real*complex2.getImaginary()) / (complex2.getReal()*complex2.getReal() + complex2.getImaginary()*complex2.getImaginary());
newComplex.setRealAndImaginary(newReal, newImag);
return newComplex;
}
bool ComplexFraction::operator==(ComplexFraction complex2) {
return (real == complex2.getReal() && imag == complex2.getImaginary());
}
ostream & operator<<(ostream & output, ComplexFraction & complex1) {
output << complex1.getReal() << " + j(" << complex1.getImaginary() << ")";
return output;
}
ComplexFraction.h
using namespace std;
class ComplexFraction : public Number {
private:
Fraction real;
Fraction imag;
public:
void print() const;
void setRealAndImaginary(Fraction newReal, Fraction newImag);
void setReal(Fraction newReal);
void setImaginary(Fraction newImag);
Fraction getReal() const;
Fraction getImaginary() const;
ComplexFraction operator+(ComplexFraction complex2);
ComplexFraction operator-(ComplexFraction complex2);
ComplexFraction operator*(ComplexFraction complex2);
ComplexFraction operator/(ComplexFraction complex2);
bool operator==(ComplexFraction complex2);
};
ostream & operator<<(ostream & output, ComplexFraction & complex1);
ComplexFractionText.cpp
#include <iostream>
#include <fstream>
#include <stdexcept>
#include <string>
#include <cstdlib>
#include "Number.h"
#include "Fraction.h"
#include "ComplexFraction.h"
using namespace std;
int msgReadInt(string message) {
int inputNum;
cout << message;
cin >> inputNum;
return inputNum;
}
void changeComplexFraction(ComplexFraction & compFrac) {
Fraction realFrac, imagFrac;
realFrac.setNumerator(msgReadInt("Real Numerator:")).setDenominator(msgReadInt("Real Denominator:"));
imagFrac.setNumerator(msgReadInt("Imaginary Numerator:")).setDenominator(msgReadInt("Imaginary Denominator:"));
compFrac.setReal(realFrac).setImaginary(imagFrac);
}
int chooseFromMenu() {
int menuNum = 0;
while (menuNum == 0) {
try {
cin >> menuNum;
if(menuNum < 1 || menuNum > 4) throw runtime_error("Invalid menu item");
}
catch (runtime_error & ex) {
cout << ex.what() << endl;
menuNum = 0;
}
}
return menuNum;
}
void writeFractionToFile(ComplexFraction compFrac, char * filename) {
ofstream myfile;
while (myfile == 0) {
try {
cin >> myfile;
if(myfile < 1 || myfile > 4) throw runtime_error("Invalid menu item");
}
catch (runtime_error & ex) {
cout << ex.what() << endl;
myfile = 0;
}
}
myfile.open(filename, ios::app);
// myfile.write
myfile << compFrac.getReal().getNumerator() << " ";
myfile << compFrac.getReal().getDenominator() << " ";
myfile << compFrac.getImaginary().getNumerator() << " ";
myfile << compFrac.getImaginary().getDenominator() << " ";
myfile << endl;
myfile.close();
}
Fraction readFractionFromFile(ifstream & myFile) {
int numerator, denominator;
Fraction myFrac;
// myfile.read
myFile >> numerator >> denominator;
myFrac.setNumerator(numerator).setDenominator(denominator);
return myFrac;
}
void printAllFractions(char * filename) {
ifstream myfile;
ComplexFraction compFrac;
Fraction realFrac, imagFrac;
myfile.open(filename, ios::in);
while (myfile == 0) {
try {
cin >> myfile;
if(myfile < 1 || myfile > 4) throw runtime_error("Invalid menu item");
}
catch (runtime_error & ex) {
cout << ex.what() << endl;
myfile = 0;
}
}
if (!myfile) throw runtime_error("Error opening file");
while(!myfile.eof()) {
realFrac = readFractionFromFile(myfile);
imagFrac = readFractionFromFile(myfile);
compFrac.setReal(realFrac).setImaginary(imagFrac);
if (!myfile.eof()) compFrac.print();
cout << endl;
}
myfile.close();
}
void printComplexFraction(ComplexFraction compFrac) {
cout << endl;
cout << "Current Complex Fraction = ";
compFrac.print();
cout << endl;
cout << "----------------" << endl;
}
void printMenu() {
cout << "1) Change Complex Fraction" << endl;
cout << "2) Append Complex Fraction to file" << endl;
cout << "3) Print all Complex Fractions in file" << endl;
cout << "4) Quit" << endl;
}
int main() {
ComplexFraction cf1;
int menuChoice;
char filename[25] = "ComplexFractions.txt";
while(true) {
printComplexFraction(cf1);
printMenu();
menuChoice = chooseFromMenu();
menuAction(menuChoice, cf1, filename);
}
}
Fraction.cpp
#include <iostream>
#include "Number.h"
#include "Fraction.h"
using namespace std;
Fraction::Fraction() {
setNumerAndDenom(0, 1);
}
Fraction::Fraction(int newNumer) {
setNumerAndDenom(newNumer, 1);
}
Fraction::Fraction(int newNumer, int newDenom) {
setNumerAndDenom(newNumer, newDenom);
}
void Fraction::print() const {
if (denominator == 1) cout << numerator;
else cout << "(" << numerator << "/" << denominator << ")";
}
void Fraction::setNumerAndDenom(int newNumer, int newDenom) {
if (newDenom == 0) {
cout << "Error creating a fraction with a zero denominator" << endl;
return;
}
numerator = newNumer;
denominator = newDenom;
simplify();
}
Fraction & Fraction::setNumerator(int newNumer) {
numerator = newNumer;
return (*this);
}
Fraction & Fraction::setDenominator(int newDenom) {
denominator = newDenom;
return (*this);
}
int Fraction::getNumerator() const {
return numerator;
}
int Fraction::getDenominator() const {
return denominator;
}
void Fraction::simplify() {
int gcd = GreatestCommonDenominator(numerator, denominator);
numerator /= gcd;
denominator /= gcd;
}
Fraction Fraction::operator+(Fraction frac2) {
Fraction newFraction;
int newDenom = denominator * frac2.getDenominator();
int newNumer = numerator * frac2.getDenominator() + frac2.getNumerator() * denominator;
newFraction.setNumerAndDenom(newNumer, newDenom);
return newFraction;
}
Fraction Fraction::operator-(Fraction frac2) {
Fraction newFraction;
int newDenom = denominator * frac2.getDenominator();
int newNumer = numerator * frac2.getDenominator() - frac2.getNumerator() * denominator;
newFraction.setNumerAndDenom(newNumer, newDenom);
return newFraction;
}
Fraction Fraction::operator*(Fraction frac2) {
Fraction newFraction;
int newDenom = denominator * frac2.getDenominator();
int newNumer = numerator * frac2.getNumerator();
newFraction.setNumerAndDenom(newNumer, newDenom);
return newFraction;
}
Fraction Fraction::operator/(Fraction frac2) {
Fraction newFraction;
int newDenom = denominator * frac2.getNumerator();
int newNumer = numerator * frac2.getDenominator();
newFraction.setNumerAndDenom(newNumer, newDenom);
return newFraction;
}
bool Fraction::operator==(Fraction frac2) {
return (numerator * frac2.getDenominator() == denominator * frac2.getNumerator());
}
bool Fraction::operator>(Fraction frac2) {
return (numerator * frac2.getDenominator() > denominator * frac2.getNumerator());
}
bool Fraction::operator<(Fraction frac2) {
return (numerator * frac2.getDenominator() < denominator * frac2.getNumerator());
}
ostream & operator<<(ostream & output, Fraction & frac) {
output << frac.getNumerator() << "/" << frac.getDenominator();
return output;
}
int GreatestCommonDenominator(int num1, int num2) {
if (num1 == 0) return num2;
if (num1 < 0) return GreatestCommonDenominator(-num1, num2);
if (num1 > num2) return GreatestCommonDenominator(num2, num1);
return GreatestCommonDenominator(num2-num1, num1);
}
Fraction.h
using namespace std;
class Fraction : public Number {
private:
int numerator, denominator;
public:
Fraction();
Fraction(int newNumer);
Fraction(int newNumer, int newDenom);
void print() const;
void setNumerAndDenom(int newNumer, int newDenom);
Fraction & setNumerator(int newNumer);
Fraction & setDenominator(int newDenom);
int getNumerator() const;
int getDenominator() const;
void simplify();
Fraction operator+(Fraction frac2);
Fraction operator-(Fraction frac2);
Fraction operator*(Fraction frac2);
Fraction operator/(Fraction frac2);
bool operator==(Fraction frac2);
bool operator>(Fraction frac2);
bool operator<(Fraction frac2);
};
ostream & operator<<(ostream & output, const Fraction & frac1)
int GreatestCommonDenominator(int num1, int num2);
Number.h
class Number {
public:
virtual void print() const {};
};
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