c-resources/CPlusPlus20ForProgrammers-m.../examples/ch09/fig09_22/Time.cpp

78 lines
2.8 KiB
C++
Raw Normal View History

2024-04-09 06:45:18 +00:00
// Fig. 9.11: Time.cpp
// Member-function definitions for class Time.
#include <fmt/format.h>
#include <stdexcept>
#include <string>
#include "Time.h" // include definition of class Time from Time.h
// Time constructor initializes each data member
Time::Time(int hour, int minute, int second) {
setTime(hour, minute, second);
}
// set new Time value using 24-hour time
void Time::setTime(int hour, int minute, int second) {
// validate hour, minute and second
if (hour < 0 || hour >= 24) {
throw std::invalid_argument{"hour was out of range"};
}
if (minute < 0 || minute >= 60) {
throw std::invalid_argument{"minute was out of range"};
}
if (second < 0 || second >= 60) {
throw std::invalid_argument{"second was out of range"};
}
m_hour = hour;
m_minute = minute;
m_second = second;
}
// set hour value
void Time::setHour(int hour) {setTime(hour, m_minute, m_second);}
// set minute value
void Time::setMinute(int minute) {setTime(m_hour, minute, m_second);}
// set second value
void Time::setSecond(int second) {setTime(m_hour, m_minute, second);}
// return hour value
int Time::getHour() const {return m_hour;}
// return minute value
int Time::getMinute() const {return m_minute;}
// return second value
int Time::getSecond() const {return m_second;}
// return Time as a string in 24-hour format (HH:MM:SS)
std::string Time::to24HourString() const {
return fmt::format("{:02d}:{:02d}:{:02d}",
getHour(), getMinute(), getSecond());
}
// return Time as string in 12-hour format (HH:MM:SS AM or PM)
std::string Time::to12HourString() {
return fmt::format("{}:{:02d}:{:02d} {}",
((getHour() % 12 == 0) ? 12 : getHour() % 12),
getMinute(), getSecond(), (getHour() < 12 ? "AM" : "PM"));
}
/**************************************************************************
* (C) Copyright 1992-2022 by Deitel & Associates, Inc. and *
* Pearson Education, Inc. All Rights Reserved. *
* *
* DISCLAIMER: The authors and publisher of this book have used their *
* best efforts in preparing the book. These efforts include the *
* development, research, and testing of the theories and programs *
* to determine their effectiveness. The authors and publisher make *
* no warranty of any kind, expressed or implied, with regard to these *
* programs or to the documentation contained in these books. The authors *
* and publisher shall not be liable in any event for incidental or *
* consequential damages in connection with, or arising out of, the *
* furnishing, performance, or use of these programs. *
**************************************************************************/