#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 | |