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author | Remko Tronçon <git@el-tramo.be> | 2009-06-01 08:48:42 (GMT) |
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committer | Remko Tronçon <git@el-tramo.be> | 2009-06-01 09:24:28 (GMT) |
commit | 2812bddd81f8a1b804c7460f4e14cd0aa393d129 (patch) | |
tree | d46294f35150c4f0f43deaf2d31fceaf945ae715 /3rdParty/Boost/boost/date_time/time_system_split.hpp | |
download | swift-2812bddd81f8a1b804c7460f4e14cd0aa393d129.zip swift-2812bddd81f8a1b804c7460f4e14cd0aa393d129.tar.bz2 |
Import.
Diffstat (limited to '3rdParty/Boost/boost/date_time/time_system_split.hpp')
-rw-r--r-- | 3rdParty/Boost/boost/date_time/time_system_split.hpp | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/3rdParty/Boost/boost/date_time/time_system_split.hpp b/3rdParty/Boost/boost/date_time/time_system_split.hpp new file mode 100644 index 0000000..08ea1ec --- /dev/null +++ b/3rdParty/Boost/boost/date_time/time_system_split.hpp @@ -0,0 +1,207 @@ +#ifndef DATE_TIME_TIME_SYSTEM_SPLIT_HPP +#define DATE_TIME_TIME_SYSTEM_SPLIT_HPP + +/* Copyright (c) 2002,2003,2005 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: 2008-11-13 15:10:23 -0500 (Thu, 13 Nov 2008) $ + */ + + +#include <string> +#include "boost/date_time/compiler_config.hpp" +#include "boost/date_time/special_defs.hpp" + +namespace boost { +namespace date_time { + + //! An unadjusted time system implementation. +#if (defined(BOOST_DATE_TIME_NO_MEMBER_INIT)) + template<typename config, boost::int32_t ticks_per_second> +#else + template<typename config> +#endif + class split_timedate_system + { + public: + typedef typename config::time_rep_type time_rep_type; + typedef typename config::date_type date_type; + typedef typename config::time_duration_type time_duration_type; + typedef typename config::date_duration_type date_duration_type; + typedef typename config::int_type int_type; + typedef typename config::resolution_traits resolution_traits; + + //86400 is number of seconds in a day... +#if (defined(BOOST_DATE_TIME_NO_MEMBER_INIT)) + typedef date_time::wrapping_int<int_type, INT64_C(86400) * ticks_per_second > wrap_int_type; +#else + private: + BOOST_STATIC_CONSTANT(int_type, ticks_per_day = INT64_C(86400) * config::tick_per_second); + public: +# if BOOST_WORKAROUND( __BORLANDC__, BOOST_TESTED_AT(0X581) ) + typedef date_time::wrapping_int< split_timedate_system::int_type, split_timedate_system::ticks_per_day> wrap_int_type; +# else + typedef date_time::wrapping_int<int_type, ticks_per_day> wrap_int_type; +#endif +#endif + + 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 time_rep_type get_time_rep(const date_type& day, + const time_duration_type& tod, + date_time::dst_flags /* dst */ = not_dst) + { + if(day.is_special() || tod.is_special()) { + if(day.is_not_a_date() || tod.is_not_a_date_time()) { + return time_rep_type(date_type(not_a_date_time), + time_duration_type(not_a_date_time)); + } + else if(day.is_pos_infinity()) { + if(tod.is_neg_infinity()) { + return time_rep_type(date_type(not_a_date_time), + time_duration_type(not_a_date_time)); + } + else { + return time_rep_type(day, time_duration_type(pos_infin)); + } + } + else if(day.is_neg_infinity()) { + if(tod.is_pos_infinity()) { + return time_rep_type(date_type(not_a_date_time), + time_duration_type(not_a_date_time)); + } + else { + return time_rep_type(day, time_duration_type(neg_infin)); + } + } + else if(tod.is_pos_infinity()) { + if(day.is_neg_infinity()) { + return time_rep_type(date_type(not_a_date_time), + time_duration_type(not_a_date_time)); + } + else { + return time_rep_type(date_type(pos_infin), tod); + } + } + else if(tod.is_neg_infinity()) { + if(day.is_pos_infinity()) { + return time_rep_type(date_type(not_a_date_time), + time_duration_type(not_a_date_time)); + } + else { + return time_rep_type(date_type(neg_infin), tod); + } + } + } + return time_rep_type(day, tod); + } + static date_type get_date(const time_rep_type& val) + { + return date_type(val.day); + } + static time_duration_type get_time_of_day(const time_rep_type& val) + { + return time_duration_type(val.time_of_day); + } + static std::string zone_name(const time_rep_type&) + { + return std::string(); + } + static bool is_equal(const time_rep_type& lhs, const time_rep_type& rhs) + { + return ((lhs.day == rhs.day) && (lhs.time_of_day == rhs.time_of_day)); + } + static bool is_less(const time_rep_type& lhs, const time_rep_type& rhs) + { + if (lhs.day < rhs.day) return true; + if (lhs.day > rhs.day) return false; + return (lhs.time_of_day < rhs.time_of_day); + } + static time_rep_type add_days(const time_rep_type& base, + const date_duration_type& dd) + { + return time_rep_type(base.day+dd, base.time_of_day); + } + static time_rep_type subtract_days(const time_rep_type& base, + const date_duration_type& dd) + { + return split_timedate_system::get_time_rep(base.day-dd, base.time_of_day); + } + static time_rep_type subtract_time_duration(const time_rep_type& base, + const time_duration_type& td) + { + if(base.day.is_special() || td.is_special()) + { + return split_timedate_system::get_time_rep(base.day, -td); + } + if (td.is_negative()) { + time_duration_type td1 = td.invert_sign(); + return add_time_duration(base,td1); + } + + wrap_int_type day_offset(base.time_of_day.ticks()); + date_duration_type day_overflow(static_cast<typename date_duration_type::duration_rep_type>(day_offset.subtract(td.ticks()))); + + return time_rep_type(base.day-day_overflow, + time_duration_type(0,0,0,day_offset.as_int())); + } + static time_rep_type add_time_duration(const time_rep_type& base, + time_duration_type td) + { + if(base.day.is_special() || td.is_special()) { + return split_timedate_system::get_time_rep(base.day, td); + } + if (td.is_negative()) { + time_duration_type td1 = td.invert_sign(); + return subtract_time_duration(base,td1); + } + + wrap_int_type day_offset(base.time_of_day.ticks()); + date_duration_type day_overflow(static_cast< typename date_duration_type::duration_rep_type >(day_offset.add(td.ticks()))); + + return time_rep_type(base.day+day_overflow, + time_duration_type(0,0,0,day_offset.as_int())); + } + static time_duration_type subtract_times(const time_rep_type& lhs, + const time_rep_type& rhs) + { + date_duration_type dd = lhs.day - rhs.day; + time_duration_type td(dd.days()*24,0,0); //days * 24 hours + time_duration_type td2 = lhs.time_of_day - rhs.time_of_day; + return td+td2; + // return time_rep_type(base.day-dd, base.time_of_day); + } + + }; + +} } //namespace date_time + + +#endif |