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authorRemko Tronçon <git@el-tramo.be>2010-02-11 12:14:00 (GMT)
committerRemko Tronçon <git@el-tramo.be>2010-02-11 12:14:00 (GMT)
commit0efa7c32aaf21a29b42b5926cc116007056843be (patch)
tree882f663a5dd0e65694bf6077b71086dd77fd7ff8 /3rdParty/Boost/boost/date_time/date.hpp
parent1d20eabbc32274b491b4c2bedf73d19933d97bfd (diff)
downloadswift-contrib-0efa7c32aaf21a29b42b5926cc116007056843be.zip
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Moved some modules into separate git modules.
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diff --git a/3rdParty/Boost/boost/date_time/date.hpp b/3rdParty/Boost/boost/date_time/date.hpp
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-#ifndef DATE_TIME_DATE_HPP___
-#define DATE_TIME_DATE_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, Bart Garst
- * $Date: 2008-02-27 15:00:24 -0500 (Wed, 27 Feb 2008) $
- */
-
-#include "boost/date_time/year_month_day.hpp"
-#include "boost/date_time/special_defs.hpp"
-#include "boost/operators.hpp"
-
-namespace boost {
-namespace date_time {
-
- //!Representation of timepoint at the one day level resolution.
- /*!
- The date template represents an interface shell for a date class
- that is based on a year-month-day system such as the gregorian
- or iso systems. It provides basic operations to enable calculation
- and comparisons.
-
- <b>Theory</b>
-
- This date representation fundamentally departs from the C tm struct
- approach. The goal for this type is to provide efficient date
- operations (add, subtract) and storage (minimize space to represent)
- in a concrete class. Thus, the date uses a count internally to
- represent a particular date. The calendar parameter defines
- the policies for converting the the year-month-day and internal
- counted form here. Applications that need to perform heavy
- formatting of the same date repeatedly will perform better
- by using the year-month-day representation.
-
- Internally the date uses a day number to represent the date.
- This is a monotonic time representation. This representation
- allows for fast comparison as well as simplifying
- the creation of writing numeric operations. Essentially, the
- internal day number is like adjusted julian day. The adjustment
- is determined by the Epoch date which is represented as day 1 of
- the calendar. Day 0 is reserved for negative infinity so that
- any actual date is automatically greater than negative infinity.
- When a date is constructed from a date or formatted for output,
- the appropriate conversions are applied to create the year, month,
- day representations.
- */
-
-
- template<class T, class calendar, class duration_type_>
- class date : private
- boost::less_than_comparable<T
- , boost::equality_comparable<T
- > >
- {
- public:
- typedef T date_type;
- typedef calendar calendar_type;
- typedef typename calendar::date_traits_type traits_type;
- typedef duration_type_ duration_type;
- typedef typename calendar::year_type year_type;
- typedef typename calendar::month_type month_type;
- typedef typename calendar::day_type day_type;
- typedef typename calendar::ymd_type ymd_type;
- typedef typename calendar::date_rep_type date_rep_type;
- typedef typename calendar::date_int_type date_int_type;
- typedef typename calendar::day_of_week_type day_of_week_type;
- date(year_type y, month_type m, day_type d)
- : days_(calendar::day_number(ymd_type(y, m, d)))
- {}
- date(const ymd_type& ymd)
- : days_(calendar::day_number(ymd))
- {}
- //let the compiler write copy, assignment, and destructor
- year_type year() const
- {
- ymd_type ymd = calendar::from_day_number(days_);
- return ymd.year;
- }
- month_type month() const
- {
- ymd_type ymd = calendar::from_day_number(days_);
- return ymd.month;
- }
- day_type day() const
- {
- ymd_type ymd = calendar::from_day_number(days_);
- return ymd.day;
- }
- day_of_week_type day_of_week() const
- {
- ymd_type ymd = calendar::from_day_number(days_);
- return calendar::day_of_week(ymd);
- }
- ymd_type year_month_day() const
- {
- return calendar::from_day_number(days_);
- }
- bool operator<(const date_type& rhs) const
- {
- return days_ < rhs.days_;
- }
- bool operator==(const date_type& rhs) const
- {
- return days_ == rhs.days_;
- }
- //! check to see if date is a special value
- bool is_special()const
- {
- return(is_not_a_date() || is_infinity());
- }
- //! check to see if date is not a value
- bool is_not_a_date() const
- {
- return traits_type::is_not_a_number(days_);
- }
- //! check to see if date is one of the infinity values
- bool is_infinity() const
- {
- return traits_type::is_inf(days_);
- }
- //! check to see if date is greater than all possible dates
- bool is_pos_infinity() const
- {
- return traits_type::is_pos_inf(days_);
- }
- //! check to see if date is greater than all possible dates
- bool is_neg_infinity() const
- {
- return traits_type::is_neg_inf(days_);
- }
- //! return as a special value or a not_special if a normal date
- special_values as_special() const
- {
- return traits_type::to_special(days_);
- }
- duration_type operator-(const date_type& d) const
- {
- date_rep_type val = date_rep_type(days_) - date_rep_type(d.days_);
- return duration_type(val.as_number());
- }
-
- date_type operator-(const duration_type& dd) const
- {
- if(dd.is_special())
- {
- return date_type(date_rep_type(days_) - dd.get_rep());
- }
- return date_type(date_rep_type(days_) - dd.days());
- }
- date_type operator-=(const duration_type& dd)
- {
- *this = *this - dd;
- return date_type(days_);
- }
- date_rep_type day_count() const
- {
- return days_;
- };
- //allow internal access from operators
- date_type operator+(const duration_type& dd) const
- {
- if(dd.is_special())
- {
- return date_type(date_rep_type(days_) + dd.get_rep());
- }
- return date_type(date_rep_type(days_) + dd.days());
- }
- date_type operator+=(const duration_type& dd)
- {
- *this = *this + dd;
- return date_type(days_);
- }
-
- //see reference
- protected:
- /*! This is a private constructor which allows for the creation of new
- dates. It is not exposed to users since that would require class
- users to understand the inner workings of the date class.
- */
- explicit date(date_int_type days) : days_(days) {};
- explicit date(date_rep_type days) : days_(days.as_number()) {};
- date_int_type days_;
-
- };
-
-
-
-
-} } // namespace date_time
-
-
-
-
-#endif