86 lines
2.8 KiB
C++
86 lines
2.8 KiB
C++
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// Fig. 9.31: Time.cpp
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// Time class member-function definitions.
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#include <fmt/format.h>
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#include <stdexcept>
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#include "Time.h" // Time class definition
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// Time constructor initializes each data member
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Time::Time(int hour, int minute, int second) {
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setTime(hour, minute, second);
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}
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// set new Time value using 24-hour time
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Time& Time::setTime(int hour, int minute, int second) {
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// validate hour, minute and second
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if (hour < 0 || hour >= 24) {
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throw std::invalid_argument{"hour was out of range"};
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}
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if (minute < 0 || minute >= 60) {
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throw std::invalid_argument{"minute was out of range"};
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}
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if (second < 0 || second >= 60) {
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throw std::invalid_argument{"second was out of range"};
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}
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m_hour = hour;
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m_minute = minute;
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m_second = second;
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return *this; // enables cascading
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}
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// set hour value
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Time& Time::setHour(int hour) {
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return setTime(hour, m_minute, m_second);
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}
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// set minute value
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Time& Time::setMinute(int minute) {
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return setTime(m_hour, minute, m_second);
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}
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// set second value
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Time& Time::setSecond(int second) {
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return setTime(m_hour, m_minute, second);
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}
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// get hour value
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int Time::getHour() const {return m_hour;}
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// get minute value
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int Time::getMinute() const {return m_minute;}
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// get second value
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int Time::getSecond() const {return m_second;}
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// return Time as a string in 24-hour format (HH:MM:SS)
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std::string Time::to24HourString() const {
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return fmt::format("{:02d}:{:02d}:{:02d}",
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getHour(), getMinute(), getSecond());
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}
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// return Time as string in 12-hour format (HH:MM:SS AM or PM)
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std::string Time::to12HourString() const {
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return fmt::format("{}:{:02d}:{:02d} {}",
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((getHour() % 12 == 0) ? 12 : getHour() % 12),
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getMinute(), getSecond(), (getHour() < 12 ? "AM" : "PM"));
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}
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/**************************************************************************
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* (C) Copyright 1992-2022 by Deitel & Associates, Inc. and *
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* Pearson Education, Inc. All Rights Reserved. *
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* *
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* DISCLAIMER: The authors and publisher of this book have used their *
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* best efforts in preparing the book. These efforts include the *
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* development, research, and testing of the theories and programs *
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* to determine their effectiveness. The authors and publisher make *
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* no warranty of any kind, expressed or implied, with regard to these *
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* programs or to the documentation contained in these books. The authors *
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* and publisher shall not be liable in any event for incidental or *
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* consequential damages in connection with, or arising out of, the *
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* furnishing, performance, or use of these programs. *
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**************************************************************************/
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