1 /* Generate a set of dates using a collection of date generators
2 * Output looks like:
3 * Enter Year: 2002
4 * 2002-Jan-01 [Tue]
5 * 2002-Jan-21 [Mon]
6 * 2002-Feb-12 [Tue]
7 * 2002-Jul-04 [Thu]
8 * 2002-Sep-02 [Mon]
9 * 2002-Nov-28 [Thu]
10 * 2002-Dec-25 [Wed]
11 * Number Holidays: 7
12 */
13
14 #include "boost/date_time/gregorian/gregorian.hpp"
15 #include <algorithm>
16 #include <functional>
17 #include <vector>
18 #include <iostream>
19 #include <set>
20
21 void
print_date(boost::gregorian::date d)22 print_date(boost::gregorian::date d)
23 {
24 using namespace boost::gregorian;
25 #if defined(BOOST_DATE_TIME_NO_LOCALE)
26 std::cout << to_simple_string(d) << " [" << d.day_of_week() << "]\n";
27 #else
28 std::cout << d << " [" << d.day_of_week() << "]\n";
29 #endif
30 }
31
32
33 int
main()34 main() {
35
36 using namespace boost::gregorian;
37
38 std::cout << "Enter Year: ";
39 greg_year::value_type year;
40 std::cin >> year;
41
42 //define a collection of holidays fixed by month and day
43 std::vector<year_based_generator*> holidays;
44 holidays.push_back(new partial_date(1,Jan)); //Western New Year
45 holidays.push_back(new partial_date(4,Jul)); //US Independence Day
46 holidays.push_back(new partial_date(25, Dec));//Christmas day
47
48
49 //define a shorthand for the nth_day_of_the_week_in_month function object
50 typedef nth_day_of_the_week_in_month nth_dow;
51
52 //US labor day
53 holidays.push_back(new nth_dow(nth_dow::first, Monday, Sep));
54 //MLK Day
55 holidays.push_back(new nth_dow(nth_dow::third, Monday, Jan));
56 //Pres day
57 holidays.push_back(new nth_dow(nth_dow::second, Tuesday, Feb));
58 //Thanksgiving
59 holidays.push_back(new nth_dow(nth_dow::fourth, Thursday, Nov));
60
61 typedef std::set<date> date_set;
62 date_set all_holidays;
63
64 for(std::vector<year_based_generator*>::iterator it = holidays.begin();
65 it != holidays.end(); ++it)
66 {
67 all_holidays.insert((*it)->get_date(year));
68 }
69
70 //print the holidays to the screen
71 std::for_each(all_holidays.begin(), all_holidays.end(), print_date);
72 std::cout << "Number Holidays: " << all_holidays.size() << std::endl;
73
74 return 0;
75 }
76
77 /* Copyright 2001-2004: CrystalClear Software, Inc
78 * http://www.crystalclearsoftware.com
79 *
80 * Subject to the Boost Software License, Version 1.0.
81 * (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
82 */
83
84