[3408] | 1 | #ifndef _DATE_TIME_POSIX_TIME_ZONE__ |
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| 2 | #define _DATE_TIME_POSIX_TIME_ZONE__ |
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| 3 | |
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| 4 | /* Copyright (c) 2003-2005 CrystalClear Software, Inc. |
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| 5 | * Subject to the Boost Software License, Version 1.0. (See accompanying |
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| 6 | * file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt) |
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| 7 | * Author: Jeff Garland, Bart Garst |
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| 8 | * $Date: 2010-06-10 13:24:38 -0400 (Thu, 10 Jun 2010) $ |
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| 9 | */ |
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| 10 | |
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| 11 | #include <string> |
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| 12 | #include <sstream> |
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| 13 | #include <stdexcept> |
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| 14 | #include <boost/tokenizer.hpp> |
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| 15 | #include <boost/throw_exception.hpp> |
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| 16 | #include <boost/date_time/gregorian/gregorian.hpp> |
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| 17 | #include <boost/date_time/time_zone_names.hpp> |
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| 18 | #include <boost/date_time/time_zone_base.hpp> |
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| 19 | #include <boost/date_time/local_time/dst_transition_day_rules.hpp> |
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| 20 | #include <boost/date_time/posix_time/posix_time.hpp> |
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| 21 | #include <boost/date_time/string_convert.hpp> |
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| 22 | #include <boost/date_time/time_parsing.hpp> |
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| 23 | |
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| 24 | namespace boost{ |
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| 25 | namespace local_time{ |
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| 26 | |
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| 27 | //! simple exception for UTC and Daylight savings start/end offsets |
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| 28 | struct bad_offset : public std::out_of_range |
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| 29 | { |
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| 30 | bad_offset(std::string const& msg = std::string()) : |
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| 31 | std::out_of_range(std::string("Offset out of range: " + msg)) {} |
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| 32 | }; |
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| 33 | //! simple exception for UTC daylight savings adjustment |
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| 34 | struct bad_adjustment : public std::out_of_range |
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| 35 | { |
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| 36 | bad_adjustment(std::string const& msg = std::string()) : |
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| 37 | std::out_of_range(std::string("Adjustment out of range: " + msg)) {} |
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| 38 | }; |
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| 39 | |
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| 40 | typedef boost::date_time::dst_adjustment_offsets<boost::posix_time::time_duration> dst_adjustment_offsets; |
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| 41 | |
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| 42 | //! A time zone class constructed from a POSIX time zone string |
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| 43 | /*! A POSIX time zone string takes the form of:<br> |
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| 44 | * "std offset dst [offset],start[/time],end[/time]" (w/no spaces) |
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| 45 | * 'std' specifies the abbrev of the time zone.<br> |
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| 46 | * 'offset' is the offset from UTC.<br> |
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| 47 | * 'dst' specifies the abbrev of the time zone during daylight savings time.<br> |
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| 48 | * The second offset is how many hours changed during DST. Default=1<br> |
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| 49 | * 'start' and'end' are the dates when DST goes into (and out of) effect.<br> |
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| 50 | * 'offset' takes the form of: [+|-]hh[:mm[:ss]] {h=0-23, m/s=0-59}<br> |
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| 51 | * 'time' and 'offset' take the same form. Time defaults=02:00:00<br> |
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| 52 | * 'start' and 'end' can be one of three forms:<br> |
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| 53 | * Mm.w.d {month=1-12, week=1-5 (5 is always last), day=0-6}<br> |
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| 54 | * Jn {n=1-365 Feb29 is never counted}<br> |
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| 55 | * n {n=0-365 Feb29 is counted in leap years}<br> |
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| 56 | * Example "PST-5PDT01:00:00,M4.1.0/02:00:00,M10.1.0/02:00:00" |
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| 57 | * <br> |
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| 58 | * Exceptions will be thrown under these conditions:<br> |
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| 59 | * An invalid date spec (see date class)<br> |
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| 60 | * A boost::local_time::bad_offset exception will be thrown for:<br> |
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| 61 | * A DST start or end offset that is negative or more than 24 hours<br> |
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| 62 | * A UTC zone that is greater than +14 or less than -12 hours<br> |
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| 63 | * A boost::local_time::bad_adjustment exception will be thrown for:<br> |
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| 64 | * A DST adjustment that is 24 hours or more (positive or negative)<br> |
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| 65 | * |
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| 66 | * Note that UTC zone offsets can be greater than +12: |
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| 67 | * http://www.worldtimezone.com/utc/utc+1200.html |
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| 68 | */ |
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| 69 | template<class CharT> |
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| 70 | class posix_time_zone_base : public date_time::time_zone_base<posix_time::ptime,CharT> { |
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| 71 | public: |
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| 72 | typedef boost::posix_time::time_duration time_duration_type; |
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| 73 | typedef date_time::time_zone_names_base<CharT> time_zone_names; |
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| 74 | typedef date_time::time_zone_base<posix_time::ptime,CharT> base_type; |
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| 75 | typedef typename base_type::string_type string_type; |
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| 76 | typedef CharT char_type; |
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| 77 | typedef typename base_type::stringstream_type stringstream_type; |
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| 78 | typedef boost::char_separator<char_type, std::char_traits<char_type> > char_separator_type; |
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| 79 | typedef boost::tokenizer<char_separator_type, |
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| 80 | typename string_type::const_iterator, |
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| 81 | string_type> tokenizer_type; |
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| 82 | typedef typename tokenizer_type::iterator tokenizer_iterator_type; |
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| 83 | |
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| 84 | //! Construct from a POSIX time zone string |
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| 85 | posix_time_zone_base(const string_type& s) : |
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| 86 | //zone_names_("std_name","std_abbrev","no-dst","no-dst"), |
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| 87 | zone_names_(), |
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| 88 | has_dst_(false), |
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| 89 | base_utc_offset_(posix_time::hours(0)), |
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| 90 | dst_offsets_(posix_time::hours(0),posix_time::hours(0),posix_time::hours(0)), |
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| 91 | dst_calc_rules_() |
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| 92 | { |
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| 93 | #ifdef __HP_aCC |
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| 94 | // Work around bug in aC++ compiler: see QXCR1000880488 in the |
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| 95 | // HP bug tracking system |
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| 96 | const char_type sep_chars[2] = {',',0}; |
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| 97 | #else |
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| 98 | const char_type sep_chars[2] = {','}; |
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| 99 | #endif |
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| 100 | char_separator_type sep(sep_chars); |
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| 101 | tokenizer_type tokens(s, sep); |
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| 102 | tokenizer_iterator_type it = tokens.begin(), end = tokens.end(); |
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| 103 | if (it == end) |
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| 104 | BOOST_THROW_EXCEPTION(std::invalid_argument("Could not parse time zone name")); |
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| 105 | calc_zone(*it++); |
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| 106 | if(has_dst_) |
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| 107 | { |
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| 108 | if (it == end) |
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| 109 | BOOST_THROW_EXCEPTION(std::invalid_argument("Could not parse DST begin time")); |
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| 110 | string_type dst_begin = *it++; |
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| 111 | |
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| 112 | if (it == end) |
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| 113 | BOOST_THROW_EXCEPTION(std::invalid_argument("Could not parse DST end time")); |
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| 114 | string_type dst_end = *it; |
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| 115 | calc_rules(dst_begin, dst_end); |
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| 116 | } |
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| 117 | } |
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| 118 | virtual ~posix_time_zone_base() {}; |
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| 119 | //!String for the zone when not in daylight savings (eg: EST) |
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| 120 | virtual string_type std_zone_abbrev()const |
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| 121 | { |
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| 122 | return zone_names_.std_zone_abbrev(); |
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| 123 | } |
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| 124 | //!String for the timezone when in daylight savings (eg: EDT) |
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| 125 | /*! For those time zones that have no DST, an empty string is used */ |
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| 126 | virtual string_type dst_zone_abbrev() const |
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| 127 | { |
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| 128 | return zone_names_.dst_zone_abbrev(); |
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| 129 | } |
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| 130 | //!String for the zone when not in daylight savings (eg: Eastern Standard Time) |
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| 131 | /*! The full STD name is not extracted from the posix time zone string. |
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| 132 | * Therefore, the STD abbreviation is used in it's place */ |
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| 133 | virtual string_type std_zone_name()const |
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| 134 | { |
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| 135 | return zone_names_.std_zone_name(); |
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| 136 | } |
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| 137 | //!String for the timezone when in daylight savings (eg: Eastern Daylight Time) |
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| 138 | /*! The full DST name is not extracted from the posix time zone string. |
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| 139 | * Therefore, the STD abbreviation is used in it's place. For time zones |
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| 140 | * that have no DST, an empty string is used */ |
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| 141 | virtual string_type dst_zone_name()const |
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| 142 | { |
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| 143 | return zone_names_.dst_zone_name(); |
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| 144 | } |
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| 145 | //! True if zone uses daylight savings adjustments otherwise false |
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| 146 | virtual bool has_dst()const |
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| 147 | { |
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| 148 | return has_dst_; |
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| 149 | } |
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| 150 | //! Local time that DST starts -- NADT if has_dst is false |
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| 151 | virtual posix_time::ptime dst_local_start_time(gregorian::greg_year y)const |
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| 152 | { |
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| 153 | gregorian::date d(gregorian::not_a_date_time); |
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| 154 | if(has_dst_) |
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| 155 | { |
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| 156 | d = dst_calc_rules_->start_day(y); |
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| 157 | } |
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| 158 | return posix_time::ptime(d, dst_offsets_.dst_start_offset_); |
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| 159 | } |
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| 160 | //! Local time that DST ends -- NADT if has_dst is false |
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| 161 | virtual posix_time::ptime dst_local_end_time(gregorian::greg_year y)const |
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| 162 | { |
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| 163 | gregorian::date d(gregorian::not_a_date_time); |
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| 164 | if(has_dst_) |
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| 165 | { |
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| 166 | d = dst_calc_rules_->end_day(y); |
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| 167 | } |
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| 168 | return posix_time::ptime(d, dst_offsets_.dst_end_offset_); |
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| 169 | } |
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| 170 | //! Base offset from UTC for zone (eg: -07:30:00) |
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| 171 | virtual time_duration_type base_utc_offset()const |
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| 172 | { |
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| 173 | return base_utc_offset_; |
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| 174 | } |
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| 175 | //! Adjustment forward or back made while DST is in effect |
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| 176 | virtual time_duration_type dst_offset()const |
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| 177 | { |
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| 178 | return dst_offsets_.dst_adjust_; |
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| 179 | } |
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| 180 | |
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| 181 | //! Returns a POSIX time_zone string for this object |
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| 182 | virtual string_type to_posix_string() const |
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| 183 | { |
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| 184 | // std offset dst [offset],start[/time],end[/time] - w/o spaces |
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| 185 | stringstream_type ss; |
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| 186 | ss.fill('0'); |
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| 187 | boost::shared_ptr<dst_calc_rule> no_rules; |
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| 188 | // std |
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| 189 | ss << std_zone_abbrev(); |
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| 190 | // offset |
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| 191 | if(base_utc_offset().is_negative()) { |
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| 192 | // inverting the sign guarantees we get two digits |
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| 193 | ss << '-' << std::setw(2) << base_utc_offset().invert_sign().hours(); |
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| 194 | } |
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| 195 | else { |
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| 196 | ss << '+' << std::setw(2) << base_utc_offset().hours(); |
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| 197 | } |
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| 198 | if(base_utc_offset().minutes() != 0 || base_utc_offset().seconds() != 0) { |
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| 199 | ss << ':' << std::setw(2) << base_utc_offset().minutes(); |
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| 200 | if(base_utc_offset().seconds() != 0) { |
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| 201 | ss << ':' << std::setw(2) << base_utc_offset().seconds(); |
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| 202 | } |
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| 203 | } |
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| 204 | if(dst_calc_rules_ != no_rules) { |
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| 205 | // dst |
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| 206 | ss << dst_zone_abbrev(); |
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| 207 | // dst offset |
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| 208 | if(dst_offset().is_negative()) { |
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| 209 | // inverting the sign guarantees we get two digits |
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| 210 | ss << '-' << std::setw(2) << dst_offset().invert_sign().hours(); |
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| 211 | } |
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| 212 | else { |
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| 213 | ss << '+' << std::setw(2) << dst_offset().hours(); |
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| 214 | } |
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| 215 | if(dst_offset().minutes() != 0 || dst_offset().seconds() != 0) { |
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| 216 | ss << ':' << std::setw(2) << dst_offset().minutes(); |
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| 217 | if(dst_offset().seconds() != 0) { |
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| 218 | ss << ':' << std::setw(2) << dst_offset().seconds(); |
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| 219 | } |
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| 220 | } |
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| 221 | // start/time |
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| 222 | ss << ',' << date_time::convert_string_type<char, char_type>(dst_calc_rules_->start_rule_as_string()) << '/' |
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| 223 | << std::setw(2) << dst_offsets_.dst_start_offset_.hours() << ':' |
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| 224 | << std::setw(2) << dst_offsets_.dst_start_offset_.minutes(); |
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| 225 | if(dst_offsets_.dst_start_offset_.seconds() != 0) { |
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| 226 | ss << ':' << std::setw(2) << dst_offsets_.dst_start_offset_.seconds(); |
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| 227 | } |
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| 228 | // end/time |
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| 229 | ss << ',' << date_time::convert_string_type<char, char_type>(dst_calc_rules_->end_rule_as_string()) << '/' |
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| 230 | << std::setw(2) << dst_offsets_.dst_end_offset_.hours() << ':' |
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| 231 | << std::setw(2) << dst_offsets_.dst_end_offset_.minutes(); |
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| 232 | if(dst_offsets_.dst_end_offset_.seconds() != 0) { |
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| 233 | ss << ':' << std::setw(2) << dst_offsets_.dst_end_offset_.seconds(); |
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| 234 | } |
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| 235 | } |
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| 236 | |
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| 237 | return ss.str(); |
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| 238 | } |
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| 239 | private: |
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| 240 | time_zone_names zone_names_; |
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| 241 | bool has_dst_; |
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| 242 | time_duration_type base_utc_offset_; |
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| 243 | dst_adjustment_offsets dst_offsets_; |
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| 244 | boost::shared_ptr<dst_calc_rule> dst_calc_rules_; |
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| 245 | |
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| 246 | /*! Extract time zone abbreviations for STD & DST as well |
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| 247 | * as the offsets for the time shift that occurs and how |
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| 248 | * much of a shift. At this time full time zone names are |
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| 249 | * NOT extracted so the abbreviations are used in their place */ |
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| 250 | void calc_zone(const string_type& obj){ |
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| 251 | const char_type empty_string[2] = {'\0'}; |
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| 252 | stringstream_type ss(empty_string); |
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| 253 | typename string_type::const_pointer sit = obj.c_str(), obj_end = sit + obj.size(); |
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| 254 | string_type l_std_zone_abbrev, l_dst_zone_abbrev; |
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| 255 | |
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| 256 | // get 'std' name/abbrev |
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| 257 | while(std::isalpha(*sit)){ |
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| 258 | ss << *sit++; |
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| 259 | } |
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| 260 | l_std_zone_abbrev = ss.str(); |
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| 261 | ss.str(empty_string); |
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| 262 | |
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| 263 | // get UTC offset |
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| 264 | if(sit != obj_end){ |
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| 265 | // get duration |
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| 266 | while(sit != obj_end && !std::isalpha(*sit)){ |
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| 267 | ss << *sit++; |
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| 268 | } |
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| 269 | base_utc_offset_ = date_time::str_from_delimited_time_duration<time_duration_type,char_type>(ss.str()); |
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| 270 | ss.str(empty_string); |
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| 271 | |
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| 272 | // base offset must be within range of -12 hours to +14 hours |
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| 273 | if(base_utc_offset_ < time_duration_type(-12,0,0) || |
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| 274 | base_utc_offset_ > time_duration_type(14,0,0)) |
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| 275 | { |
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| 276 | boost::throw_exception(bad_offset(posix_time::to_simple_string(base_utc_offset_))); |
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| 277 | } |
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| 278 | } |
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| 279 | |
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| 280 | // get DST data if given |
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| 281 | if(sit != obj_end){ |
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| 282 | has_dst_ = true; |
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| 283 | |
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| 284 | // get 'dst' name/abbrev |
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| 285 | while(sit != obj_end && std::isalpha(*sit)){ |
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| 286 | ss << *sit++; |
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| 287 | } |
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| 288 | l_dst_zone_abbrev = ss.str(); |
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| 289 | ss.str(empty_string); |
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| 290 | |
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| 291 | // get DST offset if given |
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| 292 | if(sit != obj_end){ |
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| 293 | // get duration |
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| 294 | while(sit != obj_end && !std::isalpha(*sit)){ |
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| 295 | ss << *sit++; |
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| 296 | } |
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| 297 | dst_offsets_.dst_adjust_ = date_time::str_from_delimited_time_duration<time_duration_type,char_type>(ss.str()); |
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| 298 | ss.str(empty_string); |
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| 299 | } |
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| 300 | else{ // default DST offset |
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| 301 | dst_offsets_.dst_adjust_ = posix_time::hours(1); |
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| 302 | } |
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| 303 | |
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| 304 | // adjustment must be within +|- 1 day |
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| 305 | if(dst_offsets_.dst_adjust_ <= time_duration_type(-24,0,0) || |
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| 306 | dst_offsets_.dst_adjust_ >= time_duration_type(24,0,0)) |
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| 307 | { |
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| 308 | boost::throw_exception(bad_adjustment(posix_time::to_simple_string(dst_offsets_.dst_adjust_))); |
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| 309 | } |
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| 310 | } |
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| 311 | // full names not extracted so abbrevs used in their place |
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| 312 | zone_names_ = time_zone_names(l_std_zone_abbrev, l_std_zone_abbrev, l_dst_zone_abbrev, l_dst_zone_abbrev); |
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| 313 | } |
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| 314 | |
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| 315 | void calc_rules(const string_type& start, const string_type& end){ |
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| 316 | #ifdef __HP_aCC |
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| 317 | // Work around bug in aC++ compiler: see QXCR1000880488 in the |
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| 318 | // HP bug tracking system |
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| 319 | const char_type sep_chars[2] = {'/',0}; |
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| 320 | #else |
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| 321 | const char_type sep_chars[2] = {'/'}; |
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| 322 | #endif |
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| 323 | char_separator_type sep(sep_chars); |
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| 324 | tokenizer_type st_tok(start, sep); |
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| 325 | tokenizer_type et_tok(end, sep); |
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| 326 | tokenizer_iterator_type sit = st_tok.begin(); |
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| 327 | tokenizer_iterator_type eit = et_tok.begin(); |
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| 328 | |
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| 329 | // generate date spec |
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| 330 | char_type x = string_type(*sit).at(0); |
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| 331 | if(x == 'M'){ |
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| 332 | M_func(*sit, *eit); |
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| 333 | } |
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| 334 | else if(x == 'J'){ |
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| 335 | julian_no_leap(*sit, *eit); |
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| 336 | } |
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| 337 | else{ |
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| 338 | julian_day(*sit, *eit); |
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| 339 | } |
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| 340 | |
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| 341 | ++sit; |
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| 342 | ++eit; |
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| 343 | // generate durations |
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| 344 | // starting offset |
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| 345 | if(sit != st_tok.end()){ |
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| 346 | dst_offsets_.dst_start_offset_ = date_time::str_from_delimited_time_duration<time_duration_type,char_type>(*sit); |
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| 347 | } |
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| 348 | else{ |
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| 349 | // default |
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| 350 | dst_offsets_.dst_start_offset_ = posix_time::hours(2); |
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| 351 | } |
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| 352 | // start/end offsets must fall on given date |
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| 353 | if(dst_offsets_.dst_start_offset_ < time_duration_type(0,0,0) || |
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| 354 | dst_offsets_.dst_start_offset_ >= time_duration_type(24,0,0)) |
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| 355 | { |
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| 356 | boost::throw_exception(bad_offset(posix_time::to_simple_string(dst_offsets_.dst_start_offset_))); |
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| 357 | } |
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| 358 | |
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| 359 | // ending offset |
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| 360 | if(eit != et_tok.end()){ |
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| 361 | dst_offsets_.dst_end_offset_ = date_time::str_from_delimited_time_duration<time_duration_type,char_type>(*eit); |
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| 362 | } |
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| 363 | else{ |
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| 364 | // default |
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| 365 | dst_offsets_.dst_end_offset_ = posix_time::hours(2); |
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| 366 | } |
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| 367 | // start/end offsets must fall on given date |
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| 368 | if(dst_offsets_.dst_end_offset_ < time_duration_type(0,0,0) || |
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| 369 | dst_offsets_.dst_end_offset_ >= time_duration_type(24,0,0)) |
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| 370 | { |
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| 371 | boost::throw_exception(bad_offset(posix_time::to_simple_string(dst_offsets_.dst_end_offset_))); |
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| 372 | } |
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| 373 | } |
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| 374 | |
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| 375 | /* Parses out a start/end date spec from a posix time zone string. |
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| 376 | * Date specs come in three possible formats, this function handles |
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| 377 | * the 'M' spec. Ex "M2.2.4" => 2nd month, 2nd week, 4th day . |
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| 378 | */ |
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| 379 | void M_func(const string_type& s, const string_type& e){ |
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| 380 | typedef gregorian::nth_kday_of_month nkday; |
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| 381 | unsigned short sm=0,sw=0,sd=0,em=0,ew=0,ed=0; // start/end month,week,day |
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| 382 | #ifdef __HP_aCC |
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| 383 | // Work around bug in aC++ compiler: see QXCR1000880488 in the |
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| 384 | // HP bug tracking system |
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| 385 | const char_type sep_chars[3] = {'M','.',0}; |
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| 386 | #else |
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| 387 | const char_type sep_chars[3] = {'M','.'}; |
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| 388 | #endif |
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| 389 | char_separator_type sep(sep_chars); |
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| 390 | tokenizer_type stok(s, sep), etok(e, sep); |
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| 391 | |
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| 392 | tokenizer_iterator_type it = stok.begin(); |
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| 393 | sm = lexical_cast<unsigned short>(*it++); |
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| 394 | sw = lexical_cast<unsigned short>(*it++); |
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| 395 | sd = lexical_cast<unsigned short>(*it); |
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| 396 | |
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| 397 | it = etok.begin(); |
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| 398 | em = lexical_cast<unsigned short>(*it++); |
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| 399 | ew = lexical_cast<unsigned short>(*it++); |
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| 400 | ed = lexical_cast<unsigned short>(*it); |
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| 401 | |
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| 402 | dst_calc_rules_ = shared_ptr<dst_calc_rule>( |
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| 403 | new nth_kday_dst_rule( |
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| 404 | nth_last_dst_rule::start_rule( |
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| 405 | static_cast<nkday::week_num>(sw),sd,sm), |
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| 406 | nth_last_dst_rule::start_rule( |
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| 407 | static_cast<nkday::week_num>(ew),ed,em) |
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| 408 | ) |
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| 409 | ); |
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| 410 | } |
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| 411 | |
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| 412 | //! Julian day. Feb29 is never counted, even in leap years |
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| 413 | // expects range of 1-365 |
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| 414 | void julian_no_leap(const string_type& s, const string_type& e){ |
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| 415 | typedef gregorian::gregorian_calendar calendar; |
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| 416 | const unsigned short year = 2001; // Non-leap year |
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| 417 | unsigned short sm=1; |
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| 418 | int sd=0; |
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| 419 | sd = lexical_cast<int>(s.substr(1)); // skip 'J' |
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| 420 | while(sd >= calendar::end_of_month_day(year,sm)){ |
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| 421 | sd -= calendar::end_of_month_day(year,sm++); |
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| 422 | } |
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| 423 | unsigned short em=1; |
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| 424 | int ed=0; |
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| 425 | ed = lexical_cast<int>(e.substr(1)); // skip 'J' |
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| 426 | while(ed > calendar::end_of_month_day(year,em)){ |
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| 427 | ed -= calendar::end_of_month_day(year,em++); |
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| 428 | } |
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| 429 | |
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| 430 | dst_calc_rules_ = shared_ptr<dst_calc_rule>( |
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| 431 | new partial_date_dst_rule( |
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| 432 | partial_date_dst_rule::start_rule( |
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| 433 | sd, static_cast<date_time::months_of_year>(sm)), |
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| 434 | partial_date_dst_rule::end_rule( |
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| 435 | ed, static_cast<date_time::months_of_year>(em)) |
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| 436 | ) |
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| 437 | ); |
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| 438 | } |
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| 439 | |
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| 440 | //! Julian day. Feb29 is always counted, but exception thrown in non-leap years |
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| 441 | // expects range of 0-365 |
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| 442 | void julian_day(const string_type& s, const string_type& e){ |
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| 443 | int sd=0, ed=0; |
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| 444 | sd = lexical_cast<int>(s); |
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| 445 | ed = lexical_cast<int>(e); |
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| 446 | dst_calc_rules_ = shared_ptr<dst_calc_rule>( |
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| 447 | new partial_date_dst_rule( |
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| 448 | partial_date_dst_rule::start_rule(++sd),// args are 0-365 |
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| 449 | partial_date_dst_rule::end_rule(++ed) // pd expects 1-366 |
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| 450 | ) |
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| 451 | ); |
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| 452 | } |
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| 453 | |
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| 454 | //! helper function used when throwing exceptions |
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| 455 | static std::string td_as_string(const time_duration_type& td) |
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| 456 | { |
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| 457 | std::string s; |
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| 458 | #if defined(USE_DATE_TIME_PRE_1_33_FACET_IO) |
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| 459 | s = posix_time::to_simple_string(td); |
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| 460 | #else |
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| 461 | std::stringstream ss; |
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| 462 | ss << td; |
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| 463 | s = ss.str(); |
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| 464 | #endif |
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| 465 | return s; |
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| 466 | } |
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| 467 | }; |
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| 468 | |
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| 469 | typedef posix_time_zone_base<char> posix_time_zone; |
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| 470 | |
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| 471 | } } // namespace boost::local_time |
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| 472 | |
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| 473 | |
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| 474 | #endif // _DATE_TIME_POSIX_TIME_ZONE__ |
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