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/Src/Dependencies/Boost/boost/date_time/gregorian/greg_date.hpp

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C++ Header | 136 lines | 95 code | 14 blank | 27 comment | 5 complexity | 2e6cb82265d9929e2551cf341e4d3827 MD5 | raw file
  1#ifndef GREG_DATE_HPP___
  2#define GREG_DATE_HPP___
  3
  4/* Copyright (c) 2002,2003 CrystalClear Software, Inc.
  5 * Use, modification and distribution is subject to the
  6 * Boost Software License, Version 1.0. (See accompanying
  7 * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
  8 * Author: Jeff Garland
  9 * $Date: 2010-01-11 06:17:23 +1100 (Mon, 11 Jan 2010) $
 10 */
 11
 12#include <boost/throw_exception.hpp>
 13#include <boost/date_time/date.hpp>
 14#include <boost/date_time/special_defs.hpp>
 15#include <boost/date_time/gregorian/greg_calendar.hpp>
 16#include <boost/date_time/gregorian/greg_duration.hpp>
 17
 18namespace boost {
 19namespace gregorian {
 20
 21  //bring special enum values into the namespace
 22  using date_time::special_values;
 23  using date_time::not_special;
 24  using date_time::neg_infin;
 25  using date_time::pos_infin;
 26  using date_time::not_a_date_time;
 27  using date_time::max_date_time;
 28  using date_time::min_date_time;
 29
 30  //! A date type based on gregorian_calendar
 31  /*! This class is the primary interface for programming with
 32      greogorian dates.  The is a lightweight type that can be
 33      freely passed by value.  All comparison operators are
 34      supported.
 35      \ingroup date_basics
 36  */
 37  class date : public date_time::date<date, gregorian_calendar, date_duration>
 38  {
 39   public:
 40    typedef gregorian_calendar::year_type year_type;
 41    typedef gregorian_calendar::month_type month_type;
 42    typedef gregorian_calendar::day_type day_type;
 43    typedef gregorian_calendar::day_of_year_type day_of_year_type;
 44    typedef gregorian_calendar::ymd_type ymd_type;
 45    typedef gregorian_calendar::date_rep_type date_rep_type;
 46    typedef gregorian_calendar::date_int_type date_int_type;
 47    typedef date_duration  duration_type;
 48#if !defined(DATE_TIME_NO_DEFAULT_CONSTRUCTOR)
 49    //! Default constructor constructs with not_a_date_time
 50    date():
 51      date_time::date<date, gregorian_calendar, date_duration>(date_rep_type::from_special(not_a_date_time))
 52    {}
 53#endif // DATE_TIME_NO_DEFAULT_CONSTRUCTOR
 54    //! Main constructor with year, month, day
 55    date(year_type y, month_type m, day_type d)
 56      : date_time::date<date, gregorian_calendar, date_duration>(y, m, d)
 57    {
 58      if (gregorian_calendar::end_of_month_day(y, m) < d) {
 59        boost::throw_exception(bad_day_of_month(std::string("Day of month is not valid for year")));
 60      }
 61    }
 62    //! Constructor from a ymd_type structure
 63    explicit date(const ymd_type& ymd)
 64      : date_time::date<date, gregorian_calendar, date_duration>(ymd)
 65    {}
 66    //! Needed copy constructor
 67    explicit date(const date_int_type& rhs):
 68      date_time::date<date,gregorian_calendar, date_duration>(rhs)
 69    {}
 70    //! Needed copy constructor
 71    explicit date(date_rep_type rhs):
 72      date_time::date<date,gregorian_calendar, date_duration>(rhs)
 73    {}
 74    //! Constructor for infinities, not a date, max and min date
 75    explicit date(special_values sv):
 76      date_time::date<date, gregorian_calendar, date_duration>(date_rep_type::from_special(sv))
 77    {
 78      if (sv == min_date_time)
 79      {
 80        *this = date(1400, 1, 1);
 81      }
 82      if (sv == max_date_time)
 83      {
 84        *this = date(9999, 12, 31);
 85      }
 86
 87    }
 88    //!Return the Julian Day number for the date.
 89    date_int_type julian_day() const
 90    {
 91      ymd_type ymd = year_month_day();
 92      return gregorian_calendar::julian_day_number(ymd);
 93    }
 94    //!Return the day of year 1..365 or 1..366 (for leap year)
 95    day_of_year_type day_of_year() const
 96    {
 97      date start_of_year(year(), 1, 1);
 98      unsigned short doy = static_cast<unsigned short>((*this-start_of_year).days() + 1);
 99      return day_of_year_type(doy);
100    }
101    //!Return the Modified Julian Day number for the date.
102    date_int_type modjulian_day() const
103    {
104      ymd_type ymd = year_month_day();
105      return gregorian_calendar::modjulian_day_number(ymd);
106    }
107    //!Return the iso 8601 week number 1..53
108    int week_number() const
109    {
110      ymd_type ymd = year_month_day();
111      return gregorian_calendar::week_number(ymd);
112    }
113    //! Return the day number from the calendar
114    date_int_type day_number() const
115    {
116      return days_;
117    }
118    //! Return the last day of the current month
119    date end_of_month() const
120    {
121      ymd_type ymd = year_month_day();
122      short eom_day =  gregorian_calendar::end_of_month_day(ymd.year, ymd.month);
123      return date(ymd.year, ymd.month, eom_day);
124    }
125
126   private:
127
128  };
129
130
131
132} } //namespace gregorian
133
134
135
136#endif