1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859 |
- <?xml version="1.0" encoding="utf-8"?>
- <!DOCTYPE library PUBLIC "-//Boost//DTD BoostBook XML V1.0//EN"
- "../../../tools/boostbook/dtd/boostbook.dtd">
- <!-- Copyright (c) 2001-2005 CrystalClear Software, Inc.
- 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)
- -->
- <section id="date_time.examples.calc_rules">
- <title>Daylight Savings Calc Rules</title>
- <para>
- Example of creating various Daylight Savings Calc Rule objects.
- </para>
- <programlisting>
- <![CDATA[
- /* A simple example for creating various dst_calc_rule instances
- */
- #include "boost/date_time/gregorian/gregorian.hpp"
- #include "boost/date_time/local_time/local_time.hpp"
- #include <iostream>
- int
- main()
- {
- using namespace boost;
- using namespace local_time;
- using namespace gregorian;
- /***** create the necessary date_generator objects *****/
- // starting generators
- first_day_of_the_week_in_month fd_start(Sunday, May);
- last_day_of_the_week_in_month ld_start(Sunday, May);
- nth_day_of_the_week_in_month nkd_start(nth_day_of_the_week_in_month::third,
- Sunday, May);
- partial_date pd_start(1, May);
- // ending generators
- first_day_of_the_week_in_month fd_end(Sunday, Oct);
- last_day_of_the_week_in_month ld_end(Sunday, Oct);
- nth_day_of_the_week_in_month nkd_end(nth_day_of_the_week_in_month::third,
- Sunday, Oct);
- partial_date pd_end(31, Oct);
- /***** create the various dst_calc_rule objects *****/
- dst_calc_rule_ptr pdr(new partial_date_dst_rule(pd_start, pd_end));
- dst_calc_rule_ptr flr(new first_last_dst_rule(fd_start, ld_end));
- dst_calc_rule_ptr llr(new last_last_dst_rule(ld_start, ld_end));
- dst_calc_rule_ptr nlr(new nth_last_dst_rule(nkd_start, ld_end));
- dst_calc_rule_ptr ndr(new nth_day_of_the_week_in_month_dst_rule(nkd_start,
- nkd_end));
- return 0;
- }
- ]]>
- </programlisting>
- </section>
|