| #ifndef DATE_TIME_GREGORIAN_CALENDAR_HPP__ |
| #define DATE_TIME_GREGORIAN_CALENDAR_HPP__ |
| |
| /* Copyright (c) 2002,2003 CrystalClear Software, Inc. |
| * Use, modification and distribution is 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) |
| * Author: Jeff Garland |
| * $Date: 2010-01-10 14:17:23 -0500 (Sun, 10 Jan 2010) $ |
| */ |
| |
| |
| namespace boost { |
| namespace date_time { |
| |
| |
| //! An implementation of the Gregorian calendar |
| /*! This is a parameterized implementation of a proleptic Gregorian Calendar that |
| can be used in the creation of date systems or just to perform calculations. |
| All the methods of this class are static functions, so the intent is to |
| never create instances of this class. |
| @param ymd_type_ Struct type representing the year, month, day. The ymd_type must |
| define a of types for the year, month, and day. These types need to be |
| arithmetic types. |
| @param date_int_type_ Underlying type for the date count. Must be an arithmetic type. |
| */ |
| template<typename ymd_type_, typename date_int_type_> |
| class gregorian_calendar_base { |
| public: |
| //! define a type a date split into components |
| typedef ymd_type_ ymd_type; |
| //! define a type for representing months |
| typedef typename ymd_type::month_type month_type; |
| //! define a type for representing days |
| typedef typename ymd_type::day_type day_type; |
| //! Type to hold a stand alone year value (eg: 2002) |
| typedef typename ymd_type::year_type year_type; |
| //! Define the integer type to use for internal calculations |
| typedef date_int_type_ date_int_type; |
| |
| |
| static unsigned short day_of_week(const ymd_type& ymd); |
| static int week_number(const ymd_type&ymd); |
| //static unsigned short day_of_year(date_int_type); |
| static date_int_type day_number(const ymd_type& ymd); |
| static date_int_type julian_day_number(const ymd_type& ymd); |
| static date_int_type modjulian_day_number(const ymd_type& ymd); |
| static ymd_type from_day_number(date_int_type); |
| static ymd_type from_julian_day_number(date_int_type); |
| static ymd_type from_modjulian_day_number(date_int_type); |
| static bool is_leap_year(year_type); |
| static unsigned short end_of_month_day(year_type y, month_type m); |
| static ymd_type epoch(); |
| static unsigned short days_in_week(); |
| |
| }; |
| |
| |
| |
| } } //namespace |
| |
| #ifndef NO_BOOST_DATE_TIME_INLINE |
| #include "boost/date_time/gregorian_calendar.ipp" |
| #endif |
| |
| |
| |
| #endif |
| |
| |