...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
//Print the remaining hours of the day //Uses the clock to get the local time //Use an iterator to iterate over the remaining hours //Retrieve the date part from a time /* Expected Output something like: 2002-Mar-08 16:30:59 2002-Mar-08 17:30:59 2002-Mar-08 18:30:59 2002-Mar-08 19:30:59 2002-Mar-08 20:30:59 2002-Mar-08 21:30:59 2002-Mar-08 22:30:59 2002-Mar-08 23:30:59 Time left till midnight: 07:29:01 */ #include "boost/date_time/posix_time/posix_time.hpp" #include <iostream> int main() { using namespace boost::posix_time; using namespace boost::gregorian; //get the current time from the clock -- one second resolution ptime now = second_clock::local_time(); //Get the date part out of the time date today = now.date(); date tommorrow = today + date_duration(1); ptime tommorrow_start(tommorrow); //midnight //iterator adds by one hour time_iterator titr(now,hours(1)); for (; titr < tommorrow_start; ++titr) { std::cout << to_simple_string(*titr) << std::endl; } time_duration remaining = tommorrow_start - now; std::cout << "Time left till midnight: " << to_simple_string(remaining) << std::endl; return 0; }