cmpsc330hw3/exact_number.cxx

// Name: Sandipsinh Rathod
// Email: sdr5549@psu.edu
// Class: CMPSC 330
// Program Exact Number
// Current Date: 4/11/24 4:25 PM
// Due Date: 5/11/24
//
// Description:
// Implementation for +, -, *, /, =, +=, -=, *=, /=, ==, !=, <, >, <=, >= etc.

#include "exact_number.h"

using namespace std;

ExactNumber::ExactNumber(){
    numer = 0;
    denom = 1;
}

ExactNumber::ExactNumber(int n, int d){
    if (!d) {
        throw logic_error("Denominator can not be zero.");
    }
    numer = n;
    denom = d;
    simplify();
}

ExactNumber::ExactNumber(const ExactNumber& n) {
    numer = n.numer;
    denom = n.denom;
}

ExactNumber::~ExactNumber() {
}

ExactNumber& ExactNumber::operator=(const ExactNumber& rhs) {
    numer = rhs.numer;
    denom = rhs.denom;
    return *this;
}

ExactNumber& ExactNumber::operator+=(const ExactNumber& rhs) {
    numer = numer * rhs.denom + denom * rhs.numer;
    denom *= rhs.denom;
    simplify();
    return *this;
}

ExactNumber& ExactNumber::operator-=(const ExactNumber& rhs) {
    numer = numer * rhs.denom - denom * rhs.numer;
    denom *= rhs.denom;
    simplify();
    return *this;
}

ExactNumber& ExactNumber::operator*=(const ExactNumber& rhs) {
    numer *= rhs.numer;
    denom *= rhs.denom;
    simplify();
    return *this;
}

ExactNumber& ExactNumber::operator/=(const ExactNumber& rhs) {
    numer *= rhs.denom;
    denom *= rhs.numer;
    simplify();
    if (!denom) {
        throw logic_error("Division by 0");
    }
    return *this;
}

ExactNumber operator+(const ExactNumber& lhs, const ExactNumber& rhs) {
    ExactNumber result(lhs);
    result += rhs;
    return result;
}

ExactNumber operator-(const ExactNumber& lhs, const ExactNumber& rhs) {
    ExactNumber result(lhs);
    result -= rhs;
    return result;
}

ExactNumber operator*(const ExactNumber& lhs, const ExactNumber& rhs) {
    ExactNumber result(lhs);
    result *= rhs;
    return result;
}

ExactNumber operator/(const ExactNumber& lhs, const ExactNumber& rhs) {
    ExactNumber result(lhs);
    result /= rhs;
    return result;
}

bool ExactNumber::operator==(const ExactNumber& rhs) const {
    return numer == rhs.numer && denom == rhs.denom;
}

bool ExactNumber::operator!=(const ExactNumber& rhs) const {
    return numer != rhs.numer || denom != rhs.denom;
}

bool ExactNumber::operator<(const ExactNumber& rhs) const {
    return numer * rhs.denom < denom * rhs.numer;
}

bool ExactNumber::operator>(const ExactNumber& rhs) const {
    return numer * rhs.denom > denom * rhs.numer;
}

bool ExactNumber::operator<=(const ExactNumber& rhs) const {
    return numer * rhs.denom <= denom * rhs.numer;
}

bool ExactNumber::operator>=(const ExactNumber& rhs) const {
    return numer * rhs.denom >= denom * rhs.numer;
}

ostream& operator<<(ostream& os, const ExactNumber& n) {
    os << n.numer << "/" << n.denom;
    return os;
}