date_time/example/gregorian/print_month.cpp

65 lines
1.7 KiB
C++

/* This example prints all the dates in a month. It demonstrates
* the use of iterators as well as functions of the gregorian_calendar
*
* Output:
* Enter Year: 2002
* Enter Month(1..12): 2
* 2002-Feb-01 [Fri]
* 2002-Feb-02 [Sat]
* 2002-Feb-03 [Sun]
* 2002-Feb-04 [Mon]
* 2002-Feb-05 [Tue]
* 2002-Feb-06 [Wed]
* 2002-Feb-07 [Thu]
*/
#include "boost/date_time/gregorian/gregorian.hpp"
#include <iostream>
int
main()
{
using namespace boost::gregorian;
std::cout << "Enter Year: ";
greg_year::value_type year;
greg_month::value_type month;
std::cin >> year;
std::cout << "Enter Month(1..12): ";
std::cin >> month;
try {
//Use the calendar to get the last day of the month
greg_day::value_type eom_day = gregorian_calendar::end_of_month_day(year,month);
date endOfMonth(year,month,eom_day);
//construct an iterator starting with firt day of the month
day_iterator ditr(date(year,month,1));
//loop thru the days and print each one
for (; ditr <= endOfMonth; ++ditr) {
#if defined(BOOST_DATE_TIME_NO_LOCALE)
std::cout << to_simple_string(*ditr) << " ["
#else
std::cout << *ditr << " ["
#endif
<< ditr->day_of_week() << " week: "
<< ditr->week_number() << "]"
<< std::endl;
}
}
catch(std::exception& e) {
std::cout << "Error bad date, check your entry: \n"
<< " Details: " << e.what() << std::endl;
}
return 0;
}
/* Copyright 2001-2004: CrystalClear Software, Inc
* http://www.crystalclearsoftware.com
*
* Subject to the Boost Software License, Version 1.0.
* (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
*/