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70 lines
2.5 KiB
70 lines
2.5 KiB
#ifndef DATE_TIME_GREGORIAN_CALENDAR_HPP__ |
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#define DATE_TIME_GREGORIAN_CALENDAR_HPP__ |
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/* Copyright (c) 2002,2003 CrystalClear Software, Inc. |
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* Use, modification and distribution is subject to the |
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* Boost Software License, Version 1.0. (See accompanying |
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* file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) |
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* Author: Jeff Garland |
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* $Date: 2010-01-10 14:17:23 -0500 (Sun, 10 Jan 2010) $ |
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*/ |
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namespace boost { |
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namespace date_time { |
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//! An implementation of the Gregorian calendar |
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/*! This is a parameterized implementation of a proleptic Gregorian Calendar that |
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can be used in the creation of date systems or just to perform calculations. |
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All the methods of this class are static functions, so the intent is to |
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never create instances of this class. |
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@param ymd_type_ Struct type representing the year, month, day. The ymd_type must |
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define a of types for the year, month, and day. These types need to be |
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arithmetic types. |
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@param date_int_type_ Underlying type for the date count. Must be an arithmetic type. |
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*/ |
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template<typename ymd_type_, typename date_int_type_> |
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class gregorian_calendar_base { |
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public: |
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//! define a type a date split into components |
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typedef ymd_type_ ymd_type; |
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//! define a type for representing months |
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typedef typename ymd_type::month_type month_type; |
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//! define a type for representing days |
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typedef typename ymd_type::day_type day_type; |
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//! Type to hold a stand alone year value (eg: 2002) |
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typedef typename ymd_type::year_type year_type; |
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//! Define the integer type to use for internal calculations |
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typedef date_int_type_ date_int_type; |
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static unsigned short day_of_week(const ymd_type& ymd); |
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static int week_number(const ymd_type&ymd); |
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//static unsigned short day_of_year(date_int_type); |
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static date_int_type day_number(const ymd_type& ymd); |
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static date_int_type julian_day_number(const ymd_type& ymd); |
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static date_int_type modjulian_day_number(const ymd_type& ymd); |
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static ymd_type from_day_number(date_int_type); |
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static ymd_type from_julian_day_number(date_int_type); |
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static ymd_type from_modjulian_day_number(date_int_type); |
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static bool is_leap_year(year_type); |
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static unsigned short end_of_month_day(year_type y, month_type m); |
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static ymd_type epoch(); |
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static unsigned short days_in_week(); |
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}; |
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} } //namespace |
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#ifndef NO_BOOST_DATE_TIME_INLINE |
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#include "boost/date_time/gregorian_calendar.ipp" |
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#endif |
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#endif |
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