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Diffstat (limited to '3rdParty/Boost/boost/date_time/time_system_counted.hpp')
-rw-r--r-- | 3rdParty/Boost/boost/date_time/time_system_counted.hpp | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/date_time/time_system_counted.hpp b/3rdParty/Boost/boost/date_time/time_system_counted.hpp new file mode 100644 index 0000000..fa88390 --- /dev/null +++ b/3rdParty/Boost/boost/date_time/time_system_counted.hpp @@ -0,0 +1,254 @@ +#ifndef DATE_TIME_TIME_SYSTEM_COUNTED_HPP +#define DATE_TIME_TIME_SYSTEM_COUNTED_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/time_defs.hpp" +#include <string> + + +namespace boost { +namespace date_time { + + //! Time representation that uses a single integer count + template<class config> + struct counted_time_rep + { + typedef typename config::int_type int_type; + typedef typename config::date_type date_type; + typedef typename config::impl_type impl_type; + typedef typename date_type::duration_type date_duration_type; + typedef typename date_type::calendar_type calendar_type; + typedef typename date_type::ymd_type ymd_type; + typedef typename config::time_duration_type time_duration_type; + typedef typename config::resolution_traits resolution_traits; + + counted_time_rep(const date_type& d, const time_duration_type& time_of_day) + : time_count_(1) + { + if(d.is_infinity() || d.is_not_a_date() || time_of_day.is_special()) { + time_count_ = time_of_day.get_rep() + d.day_count(); + //std::cout << time_count_ << std::endl; + } + else { + time_count_ = (d.day_number() * frac_sec_per_day()) + time_of_day.ticks(); + } + } + explicit counted_time_rep(int_type count) : + time_count_(count) + {} + explicit counted_time_rep(impl_type count) : + time_count_(count) + {} + date_type date() const + { + if(time_count_.is_special()) { + return date_type(time_count_.as_special()); + } + else { + typename calendar_type::date_int_type dc = day_count(); + //std::cout << "time_rep here:" << dc << std::endl; + ymd_type ymd = calendar_type::from_day_number(dc); + return date_type(ymd); + } + } + //int_type day_count() const + unsigned long day_count() const + { + /* resolution_traits::as_number returns a boost::int64_t & + * frac_sec_per_day is also a boost::int64_t so, naturally, + * the division operation returns a boost::int64_t. + * The static_cast to an unsigned long is ok (results in no data loss) + * because frac_sec_per_day is either the number of + * microseconds per day, or the number of nanoseconds per day. + * Worst case scenario: resolution_traits::as_number returns the + * maximum value an int64_t can hold and frac_sec_per_day + * is microseconds per day (lowest possible value). + * The division operation will then return a value of 106751991 - + * easily fitting in an unsigned long. + */ + return static_cast<unsigned long>(resolution_traits::as_number(time_count_) / frac_sec_per_day()); + } + int_type time_count() const + { + return resolution_traits::as_number(time_count_); + } + int_type tod() const + { + return resolution_traits::as_number(time_count_) % frac_sec_per_day(); + } + static int_type frac_sec_per_day() + { + int_type seconds_per_day = 60*60*24; + int_type fractional_sec_per_sec(resolution_traits::res_adjust()); + return seconds_per_day*fractional_sec_per_sec; + } + bool is_pos_infinity()const + { + return impl_type::is_pos_inf(time_count_.as_number()); + } + bool is_neg_infinity()const + { + return impl_type::is_neg_inf(time_count_.as_number()); + } + bool is_not_a_date_time()const + { + return impl_type::is_not_a_number(time_count_.as_number()); + } + bool is_special()const + { + return time_count_.is_special(); + } + impl_type get_rep()const + { + return time_count_; + } + private: + impl_type time_count_; + }; + + //! An unadjusted time system implementation. + template<class time_rep> + class counted_time_system + { + public: + typedef time_rep time_rep_type; + typedef typename time_rep_type::impl_type impl_type; + typedef typename time_rep_type::time_duration_type time_duration_type; + typedef typename time_duration_type::fractional_seconds_type fractional_seconds_type; + typedef typename time_rep_type::date_type date_type; + typedef typename time_rep_type::date_duration_type date_duration_type; + + + template<class T> static void unused_var(const T&) {} + + static time_rep_type get_time_rep(const date_type& day, + const time_duration_type& tod, + date_time::dst_flags dst=not_dst) + { + unused_var(dst); + return time_rep_type(day, tod); + } + + static time_rep_type get_time_rep(special_values sv) + { + switch (sv) { + case not_a_date_time: + return time_rep_type(date_type(not_a_date_time), + time_duration_type(not_a_date_time)); + case pos_infin: + return time_rep_type(date_type(pos_infin), + time_duration_type(pos_infin)); + case neg_infin: + return time_rep_type(date_type(neg_infin), + time_duration_type(neg_infin)); + case max_date_time: { + time_duration_type td = time_duration_type(24,0,0,0) - time_duration_type(0,0,0,1); + return time_rep_type(date_type(max_date_time), td); + } + case min_date_time: + return time_rep_type(date_type(min_date_time), time_duration_type(0,0,0,0)); + + default: + return time_rep_type(date_type(not_a_date_time), + time_duration_type(not_a_date_time)); + + } + + } + + static date_type get_date(const time_rep_type& val) + { + return val.date(); + } + static time_duration_type get_time_of_day(const time_rep_type& val) + { + if(val.is_special()) { + return time_duration_type(val.get_rep().as_special()); + } + else{ + return time_duration_type(0,0,0,val.tod()); + } + } + static std::string zone_name(const time_rep_type&) + { + return ""; + } + static bool is_equal(const time_rep_type& lhs, const time_rep_type& rhs) + { + return (lhs.time_count() == rhs.time_count()); + } + static bool is_less(const time_rep_type& lhs, const time_rep_type& rhs) + { + return (lhs.time_count() < rhs.time_count()); + } + static time_rep_type add_days(const time_rep_type& base, + const date_duration_type& dd) + { + if(base.is_special() || dd.is_special()) { + return(time_rep_type(base.get_rep() + dd.get_rep())); + } + else { + return time_rep_type(base.time_count() + (dd.days() * time_rep_type::frac_sec_per_day())); + } + } + static time_rep_type subtract_days(const time_rep_type& base, + const date_duration_type& dd) + { + if(base.is_special() || dd.is_special()) { + return(time_rep_type(base.get_rep() - dd.get_rep())); + } + else{ + return time_rep_type(base.time_count() - (dd.days() * time_rep_type::frac_sec_per_day())); + } + } + static time_rep_type subtract_time_duration(const time_rep_type& base, + const time_duration_type& td) + { + if(base.is_special() || td.is_special()) { + return(time_rep_type(base.get_rep() - td.get_rep())); + } + else { + return time_rep_type(base.time_count() - td.ticks()); + } + } + static time_rep_type add_time_duration(const time_rep_type& base, + time_duration_type td) + { + if(base.is_special() || td.is_special()) { + return(time_rep_type(base.get_rep() + td.get_rep())); + } + else { + return time_rep_type(base.time_count() + td.ticks()); + } + } + static time_duration_type subtract_times(const time_rep_type& lhs, + const time_rep_type& rhs) + { + if(lhs.is_special() || rhs.is_special()) { + return(time_duration_type( + impl_type::to_special((lhs.get_rep() - rhs.get_rep()).as_number()))); + } + else { + fractional_seconds_type fs = lhs.time_count() - rhs.time_count(); + return time_duration_type(0,0,0,fs); + } + } + + }; + + +} } //namespace date_time + + + +#endif + |