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timespan.cpp
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timespan.cpp
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//
// Created by Yusuf Pisan on 4/2/18.
//
#include "timespan.h"
int hours;
int mins;
int secs;
bool positive;
ostream &operator<<(ostream &out, const TimeSpan &ts) {
if (!ts.isPositive()) {
out << "-";
}
out << ts.getHour() << ":";
if (ts.getMinute() < 10) {
out << 0;
}
out << ts.getMinute() << ":";
if (ts.getSecond() < 10) {
out << 0;
}
out << ts.getSecond();
return out;
}
// explicit TimeSpan(int Hour = 0, int Minute = 0, int Second = 0);
TimeSpan::TimeSpan(double hour, double minute, double second) {
double doubleTime = (hour * 3600) + (minute * 60) + second;
positive = doubleTime >= 0;
if (!positive) {
doubleTime *= -1;
}
if (doubleTime > 0.0) {
doubleTime += .5;
} else {
doubleTime -= .5;
}
int intTime = static_cast<int>(doubleTime);
hours = intTime / 3600;
intTime -= hours * 3600;
mins = intTime / 60;
intTime -= mins * 60;
secs = intTime;
}
void TimeSpan::reConstructSelf(int intTime) {
positive = intTime >= 0;
if (!positive) {
intTime *= -1;
}
hours = intTime / 3600;
intTime -= hours * 3600;
mins = intTime / 60;
intTime -= mins * 60;
secs = intTime;
}
int TimeSpan::deConstructHelp(const TimeSpan &ts) const {
if (ts.isPositive()) {
return (ts.getHour() * 3600) + ts.getMinute() * 60 + ts.getSecond();
}
return 0 - ((ts.getHour() * 3600) + ts.getMinute() * 60 + ts.getSecond());
}
int TimeSpan::deConstructSelf() const {
if (positive) {
return (hours * 3600) + mins * 60 + secs;
}
return 0 - ((hours * 3600) + mins * 60 + secs);
}
// hour component
int TimeSpan::getHour() const { return this->hours; }
// minute component
int TimeSpan::getMinute() const { return this->mins; }
// second component
int TimeSpan::getSecond() const { return this->secs; }
// true if timespan is 0 or larger
bool TimeSpan::isPositive() const { return this->positive; }
// add
TimeSpan TimeSpan::operator+(const TimeSpan &ts) const {
TimeSpan tsSum(0, 0, deConstructSelf() + deConstructHelp(ts));
return tsSum;
}
// subtract
TimeSpan TimeSpan::operator-(const TimeSpan &ts) const {
TimeSpan tsSub(0, 0, deConstructSelf() - deConstructHelp(ts));
return tsSub;
}
// multiply with an integer
TimeSpan TimeSpan::operator*(unsigned int number) const {
TimeSpan tsLarg(0, 0, deConstructSelf() * static_cast<int>(number));
return tsLarg;
}
TimeSpan TimeSpan::operator+=(const TimeSpan &ts) {
reConstructSelf(deConstructSelf() + deConstructHelp(ts));
return *this;
}
TimeSpan TimeSpan::operator-=(const TimeSpan &ts) {
reConstructSelf(deConstructSelf() - deConstructHelp(ts));
return *this;
}
TimeSpan TimeSpan::operator*=(unsigned int number) {
reConstructSelf(deConstructSelf() * number);
return *this;
}
// equality ==
bool TimeSpan::operator==(const TimeSpan &ts) const {
return deConstructSelf() == deConstructHelp(ts);
}
// inequality !=
bool TimeSpan::operator!=(const TimeSpan &ts) const {
return deConstructSelf() != deConstructHelp(ts);
}
bool TimeSpan::operator<(const TimeSpan &ts) const {
return deConstructSelf() < deConstructHelp(ts);
}
bool TimeSpan::operator>(const TimeSpan &ts) const {
return deConstructSelf() > deConstructHelp(ts);
}
bool TimeSpan::operator<=(const TimeSpan &ts) const {
return deConstructSelf() <= deConstructHelp(ts);
}
bool TimeSpan::operator>=(const TimeSpan &ts) const {
return deConstructSelf() >= deConstructHelp(ts);
}