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NumberWithUnits.cpp
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NumberWithUnits.cpp
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#include "NumberWithUnits.hpp"
#include <sstream>
using namespace::std;
namespace ariel {
//constractor
NumberWithUnits::NumberWithUnits(double amount, const string &unit_type) {
if (unitsType.count(unit_type) > 0) {
_unit.first = amount;
_unit.second = unit_type;
}
else {
throw("It is not same type");
}
}
void NumberWithUnits::read_units(ifstream &file_name) {
string unit1, unit2;
double amount = 0;
while (!file_name.fail() && !file_name.eof() ) {
file_name >> unit1;
if (unit1 == "1") {
file_name >> unit1;
file_name >> unit2;
file_name >> amount;
file_name >> unit2;
unitsType[unit1][unit2] = amount;
unitsType[unit2][unit1] = 1/amount;
for (auto const &unit : unitsType[unit1]) {
unitsType[unit.first][unit2] = amount / unit.second;
unitsType[unit2][unit.first] = unit.second / amount;
}
for (auto const &unit : unitsType[unit2]) {
unitsType[unit.first][unit1] = (1/amount) / unit.second;
unitsType[unit1][unit.first] = unit.second / (1/amount);
}
}
}
}
NumberWithUnits NumberWithUnits::operator- () const {
NumberWithUnits result(_unit.first * (-1), _unit.second);
return result;
}
NumberWithUnits NumberWithUnits::operator- (const NumberWithUnits &other_num) const {
if (unitsType[_unit.second].count(other_num._unit.second) > 0 && unitsType[other_num._unit.second].count(_unit.second) > 0) {
double sum = _unit.first - (other_num._unit.first * unitsType[other_num._unit.second][_unit.second]);
return NumberWithUnits(sum, _unit.second);
}
throw("It is not same type");
}
// prefix and postfix operators - ++ --
NumberWithUnits & NumberWithUnits::operator-- () {
_unit.first = _unit.first -1;
return *this;
}
NumberWithUnits NumberWithUnits::operator-- (int) {
NumberWithUnits result(_unit.first, _unit.second);
_unit.first = _unit.first -1;
return result;
}
NumberWithUnits & NumberWithUnits::operator++ () {
_unit.first = _unit.first +1;
return *this;
}
NumberWithUnits NumberWithUnits::operator++ (int) {
NumberWithUnits result(_unit.first, _unit.second);
_unit.first = _unit.first +1;
return result;
}
NumberWithUnits NumberWithUnits::operator+ () const {
return *this;
}
NumberWithUnits NumberWithUnits::operator+ (const NumberWithUnits &other_num) const {
if (unitsType[_unit.second].count(other_num._unit.second) > 0) {
double sum = _unit.first + (other_num._unit.first * unitsType[other_num._unit.second][_unit.second]);
return NumberWithUnits(sum, _unit.second);
}
throw("It is not same type");
}
// booleans opreators - < > = !
bool NumberWithUnits::operator> (const NumberWithUnits &other_num) const {
if (unitsType[_unit.second].count(other_num._unit.second) > 0) {
return ((unitsType[_unit.second][other_num._unit.second] * _unit.first - other_num._unit.first) > epsilon);
}
throw("It is not same type");
}
bool NumberWithUnits::operator>= (const NumberWithUnits &other_num) const {
if (unitsType[_unit.second].count(other_num._unit.second) > 0) {
return (this->_unit.first >= other_num._unit.first * unitsType[other_num._unit.second][_unit.second]);
}
throw("It is not same type");
}
bool NumberWithUnits::operator< (const NumberWithUnits &other_num) const {
if (unitsType[_unit.second].count(other_num._unit.second) > 0) {
return (this->_unit.first < other_num._unit.first * unitsType[other_num._unit.second][_unit.second]);
}
throw("It is not same type");
}
bool NumberWithUnits::operator<= (const NumberWithUnits &other_num) const {
return (*this < other_num || *this == other_num);
}
bool NumberWithUnits::operator== (const NumberWithUnits &other_num) const {
if (unitsType[_unit.second].count(other_num._unit.second) > 0 && unitsType[other_num._unit.second].count(_unit.second) > 0) {
return (abs(_unit.first - other_num._unit.first * unitsType[other_num._unit.second][_unit.second]) <= epsilon);
}
throw("It is not same type");
}
bool NumberWithUnits::operator!= (const NumberWithUnits &other_num) const {
return !(*this == other_num);
}
NumberWithUnits& NumberWithUnits::operator+= (const NumberWithUnits &num) {
if (unitsType[_unit.second].count(num._unit.second) > 0) {
_unit.first += (num._unit.first * unitsType[num._unit.second][_unit.second]);
return *this;
}
throw("It is not same type");
}
NumberWithUnits& NumberWithUnits::operator-= (const NumberWithUnits &num) {
if (unitsType[_unit.second].count(num._unit.second) > 0 ) {
_unit.first -= (num._unit.first * unitsType[num._unit.second][_unit.second]);
return *this;
}
throw("It is not same type");
}
//* operator
NumberWithUnits NumberWithUnits::operator* (double factor) const {
return NumberWithUnits(_unit.first * factor, _unit.second);
}
NumberWithUnits operator* (double factor, const NumberWithUnits &other_num) {
return other_num * factor;
}
// << >> operators
ostream& operator<< (ostream& stream, const NumberWithUnits &num) {
stream << num._unit.first << "[" << num._unit.second << "]";
return stream;
}
istream& operator>> (istream& stream, NumberWithUnits &num) {
double in_num = 0;
string result;
char tmp_char = ' ';
stream >> in_num;
stream >> tmp_char ;
while (tmp_char != ']') {
if (tmp_char != '[') {
result.push_back(tmp_char);
}
stream >> tmp_char;
}
if (unitsType.count(result) > 0) {
num._unit.first = in_num;
num._unit.second = result;
return stream;
}
throw("Wrong type");
}
}