# Last Day of the Months

Example that gets a month and a year from the user and finds the last day of each remaining month of that year.

      /* Simple program that finds the last day of the given month,
       * then displays the last day of every month left in the given year.
       */

      #include "boost/date_time/gregorian/gregorian.hpp"
      #include <iostream>

      int
      main()
      {
        using namespace boost::gregorian;

        greg_year year(1400);
        greg_month month(1);

        // get a month and a year from the user
        try {
          int y, m;
          std::cout << "   Enter Year(ex: 2002): ";
          std::cin >> y;
          year = greg_year(y);
          std::cout << "   Enter Month(1..12): ";
          std::cin >> m;
          month = greg_month(m);
        }
        catch(bad_year by) {
          std::cout << "Invalid Year Entered: " << by.what() << '\n'
            << "Using minimum values for month and year." << std::endl;
        }
        catch(bad_month bm) {
          std::cout << "Invalid Month Entered" << bm.what() << '\n'
            << "Using minimum value for month. " << std::endl;
        }

        date start_of_next_year(year+1, Jan, 1);
        date d(year, month, 1);

        // add another month to d until we enter the next year.
        while (d < start_of_next_year){
          std::cout << to_simple_string(d.end_of_month()) << std::endl;
          d += months(1);
        }

        return 0;
      }