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-rw-r--r--3rdParty/Boost/src/boost/date_time/date_iterator.hpp101
1 files changed, 101 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/date_time/date_iterator.hpp b/3rdParty/Boost/src/boost/date_time/date_iterator.hpp
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+++ b/3rdParty/Boost/src/boost/date_time/date_iterator.hpp
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+#ifndef DATE_ITERATOR_HPP___
+#define DATE_ITERATOR_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 <iterator>
+
+namespace boost {
+namespace date_time {
+ //! An iterator over dates with varying resolution (day, week, month, year, etc)
+ enum date_resolutions {day, week, months, year, decade, century, NumDateResolutions};
+
+ //! Base date iterator type
+ /*! This class provides the skeleton for the creation of iterators.
+ * New and interesting interators can be created by plugging in a new
+ * function that derives the next value from the current state.
+ * generation of various types of -based information.
+ *
+ * <b>Template Parameters</b>
+ *
+ * <b>date_type</b>
+ *
+ * The date_type is a concrete date_type. The date_type must
+ * define a duration_type and a calendar_type.
+ */
+ template<class date_type>
+ class date_itr_base {
+ // works, but benefit unclear at the moment
+ // class date_itr_base : public std::iterator<std::input_iterator_tag,
+ // date_type, void, void, void>{
+ public:
+ typedef typename date_type::duration_type duration_type;
+ typedef date_type value_type;
+ typedef std::input_iterator_tag iterator_category;
+
+ date_itr_base(date_type d) : current_(d) {}
+ virtual ~date_itr_base() {};
+ date_itr_base& operator++()
+ {
+ current_ = current_ + get_offset(current_);
+ return *this;
+ }
+ date_itr_base& operator--()
+ {
+ current_ = current_ + get_neg_offset(current_);
+ return *this;
+ }
+ virtual duration_type get_offset(const date_type& current) const=0;
+ virtual duration_type get_neg_offset(const date_type& current) const=0;
+ date_type operator*() {return current_;};
+ date_type* operator->() {return &current_;};
+ bool operator< (const date_type& d) {return current_ < d;}
+ bool operator<= (const date_type& d) {return current_ <= d;}
+ bool operator> (const date_type& d) {return current_ > d;}
+ bool operator>= (const date_type& d) {return current_ >= d;}
+ bool operator== (const date_type& d) {return current_ == d;}
+ bool operator!= (const date_type& d) {return current_ != d;}
+ private:
+ date_type current_;
+ };
+
+ //! Overrides the base date iterator providing hook for functors
+ /*
+ * <b>offset_functor</b>
+ *
+ * The offset functor must define a get_offset function that takes the
+ * current point in time and calculates and offset.
+ *
+ */
+ template<class offset_functor, class date_type>
+ class date_itr : public date_itr_base<date_type> {
+ public:
+ typedef typename date_type::duration_type duration_type;
+ date_itr(date_type d, int factor=1) :
+ date_itr_base<date_type>(d),
+ of_(factor)
+ {}
+ private:
+ virtual duration_type get_offset(const date_type& current) const
+ {
+ return of_.get_offset(current);
+ }
+ virtual duration_type get_neg_offset(const date_type& current) const
+ {
+ return of_.get_neg_offset(current);
+ }
+ offset_functor of_;
+ };
+
+
+
+} } //namespace date_time
+
+
+#endif