FM / date

/usr/include/boost/date_time

Name	Size	Mode	Actions
gregorian/	-	0755	rm
local_time/	-	0755	rm
posix_time/	-	0755	rm
adjust_functors.hpp	5467	0644	edit dl rm
compiler_config.hpp	5640	0644	edit dl rm
constrained_value.hpp	4224	0644	edit dl rm
c_local_time_adjustor.hpp	2631	0644	edit dl rm
c_time.hpp	4496	0644	edit dl rm
date.hpp	7357	0644	edit dl rm
date_clock_device.hpp	2299	0644	edit dl rm
date_defs.hpp	701	0644	edit dl rm
date_duration.hpp	4669	0644	edit dl rm
date_duration_types.hpp	9186	0644	edit dl rm
date_facet.hpp	29314	0644	edit dl rm
date_formatting.hpp	4208	0644	edit dl rm
date_formatting_limited.hpp	3461	0644	edit dl rm
date_formatting_locales.hpp	6748	0644	edit dl rm
date_format_simple.hpp	3128	0644	edit dl rm
date_generators.hpp	16508	0644	edit dl rm
date_generator_formatter.hpp	11715	0644	edit dl rm
date_generator_parser.hpp	13064	0644	edit dl rm
date_iterator.hpp	3305	0644	edit dl rm
date_names_put.hpp	10754	0644	edit dl rm
date_parsing.hpp	14146	0644	edit dl rm
dst_rules.hpp	15401	0644	edit dl rm
dst_transition_generators.hpp	2293	0644	edit dl rm
filetime_functions.hpp	3163	0644	edit dl rm
find_match.hpp	1355	0644	edit dl rm
format_date_parser.hpp	23909	0644	edit dl rm
gregorian_calendar.hpp	2714	0644	edit dl rm
gregorian_calendar.ipp	7947	0644	edit dl rm
int_adapter.hpp	14463	0644	edit dl rm
iso_format.hpp	5640	0644	edit dl rm
locale_config.hpp	1206	0644	edit dl rm
local_timezone_defs.hpp	7618	0644	edit dl rm
local_time_adjustor.hpp	8578	0644	edit dl rm
microsec_time_clock.hpp	6257	0644	edit dl rm
parse_format_base.hpp	961	0644	edit dl rm
period.hpp	11936	0644	edit dl rm
period_formatter.hpp	7237	0644	edit dl rm
period_parser.hpp	7932	0644	edit dl rm
special_defs.hpp	633	0644	edit dl rm
special_values_formatter.hpp	3657	0644	edit dl rm
special_values_parser.hpp	6161	0644	edit dl rm
strings_from_facet.hpp	4505	0644	edit dl rm
string_convert.hpp	1002	0644	edit dl rm
string_parse_tree.hpp	8405	0644	edit dl rm
time.hpp	6788	0644	edit dl rm
time_clock.hpp	2245	0644	edit dl rm
time_defs.hpp	942	0644	edit dl rm
time_duration.hpp	10569	0644	edit dl rm
time_facet.hpp	58988	0644	edit dl rm
time_formatting_streams.hpp	3752	0644	edit dl rm
time_iterator.hpp	1438	0644	edit dl rm
time_parsing.hpp	11846	0644	edit dl rm
time_resolution_traits.hpp	6760	0644	edit dl rm
time_system_counted.hpp	9051	0644	edit dl rm
time_system_split.hpp	8077	0644	edit dl rm
time_zone_base.hpp	3711	0644	edit dl rm
time_zone_names.hpp	3103	0644	edit dl rm
tz_db_base.hpp	15915	0644	edit dl rm
wrapping_int.hpp	5824	0644	edit dl rm
year_month_day.hpp	1375	0644	edit dl rm

Edit: /usr/include/boost/date_time/local_timezone_defs.hpp (7618B)

#ifndef DATE_TIME_LOCAL_TIMEZONE_DEFS_HPP__
#define DATE_TIME_LOCAL_TIMEZONE_DEFS_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 
 * $Date$
 */

#include "boost/date_time/dst_rules.hpp"

namespace boost {
  namespace date_time {

// Configurations for common dst rules cases:
    // See http://www.wharton.co.uk/Support/sup_dst.htm for more
    // information on how various locales use dst rules

//! Specification for daylight savings start rules in US
    /*! This class is used to configure dst_calc_engine template typically
        as follows:
        @code
          using namespace boost::gregorian;
          using namespace boost::posix_time;
          typedef us_dst_trait<date> us_dst_traits;
          typedef boost::date_time::dst_calc_engine<date, time_duration, 
                                                    us_dst_traits>  
                                                    us_dst_calc;
          //calculate the 2002 transition day of USA April 7 2002
          date dst_start = us_dst_calc::local_dst_start_day(2002);

//calculate the 2002 transition day of USA Oct 27 2002
          date dst_end = us_dst_calc::local_dst_end_day(2002); 
                                                    
          //check if a local time is in dst or not -- posible answers
          //are yes, no, invalid time label, ambiguous
          ptime t(...some time...);  
          if (us_dst::local_is_dst(t.date(), t.time_of_day()) 
              == boost::date_time::is_not_in_dst) 
          {

}

@endcode
        This generates a type suitable for the calculation of dst 
        transitions for the United States.  Of course other templates
        can be used for other locales.

template<class date_type>
     struct us_dst_trait
     {
       typedef typename date_type::day_of_week_type day_of_week_type;
       typedef typename date_type::month_type month_type;
       typedef typename date_type::year_type year_type;
       typedef date_time::nth_kday_of_month<date_type> start_rule_functor;
       typedef date_time::first_kday_of_month<date_type> end_rule_functor;
       typedef date_time::first_kday_of_month<date_type> start_rule_functor_pre2007;
       typedef date_time::last_kday_of_month<date_type> end_rule_functor_pre2007;
       static day_of_week_type start_day(year_type) {return Sunday;}
       static month_type start_month(year_type y) 
       {
         if (y < 2007) return Apr;
         return Mar;
       }
       static day_of_week_type end_day(year_type) {return Sunday;}
       static month_type end_month(year_type y) 
       {
         if (y < 2007) return Oct;
         return Nov;
       }
       static date_type local_dst_start_day(year_type year)
       {
         if (year < 2007) {
           start_rule_functor_pre2007 start1(start_day(year), 
                                             start_month(year));
           return start1.get_date(year);
         }
         start_rule_functor start(start_rule_functor::second,
                                  start_day(year), 
                                  start_month(year));
         return start.get_date(year);
          
       }
       static date_type local_dst_end_day(year_type year)
       {
         if (year < 2007) {
           end_rule_functor_pre2007 end_rule(end_day(year), 
                                             end_month(year));
           return end_rule.get_date(year);
         }
         end_rule_functor end(end_day(year), 
                              end_month(year));
         return end.get_date(year);      
       }
       static int dst_start_offset_minutes() { return 120;}
       static int dst_end_offset_minutes() { return 120; }
       static int dst_shift_length_minutes() { return 60; }
     };

//!Rules for daylight savings start in the EU (Last Sun in Mar)
    /*!These amount to the following:
      - Start of dst day is last Sunday in March
      - End day of dst is last Sunday in Oct
      - Going forward switch time is 2:00 am (offset 120 minutes)
      - Going back switch time is 3:00 am (off set 180 minutes)
      - Shift duration is one hour (60 minutes)
    */
    template<class date_type>
    struct eu_dst_trait
    {
      typedef typename date_type::day_of_week_type day_of_week_type;
      typedef typename date_type::month_type month_type;
      typedef typename date_type::year_type year_type;
      typedef date_time::last_kday_of_month<date_type> start_rule_functor;
      typedef date_time::last_kday_of_month<date_type> end_rule_functor;
      static day_of_week_type start_day(year_type) {return Sunday;}
      static month_type start_month(year_type) {return Mar;}
      static day_of_week_type end_day(year_type) {return Sunday;}
      static month_type end_month(year_type) {return Oct;}
      static int dst_start_offset_minutes() { return 120;}
      static int dst_end_offset_minutes() { return 180; }
      static int dst_shift_length_minutes() { return 60; }
      static date_type local_dst_start_day(year_type year)
      {
        start_rule_functor start(start_day(year), 
                                 start_month(year));
        return start.get_date(year);      
      }
      static date_type local_dst_end_day(year_type year)
      {
        end_rule_functor end(end_day(year), 
                             end_month(year));
        return end.get_date(year);      
      }
    };

//! Alternative dst traits for some parts of the United Kingdom
    /* Several places in the UK use EU start and end rules for the 
       day, but different local conversion times (eg: forward change at 1:00 
       am local and  backward change at 2:00 am dst instead of 2:00am 
       forward and 3:00am back for the EU).
    */
    template<class date_type>
    struct uk_dst_trait : public eu_dst_trait<date_type>
    {
      static int dst_start_offset_minutes() { return 60;}
      static int dst_end_offset_minutes() { return 120; }
      static int dst_shift_length_minutes() { return 60; }
    };

//Rules for Adelaide Australia
    template<class date_type>
    struct acst_dst_trait
    {
      typedef typename date_type::day_of_week_type day_of_week_type;
      typedef typename date_type::month_type month_type;
      typedef typename date_type::year_type year_type;
      typedef date_time::last_kday_of_month<date_type> start_rule_functor;
      typedef date_time::last_kday_of_month<date_type> end_rule_functor;
      static day_of_week_type start_day(year_type) {return Sunday;}
      static month_type start_month(year_type) {return Oct;}
      static day_of_week_type end_day(year_type) {return Sunday;}
      static month_type end_month(year_type) {return Mar;}
      static int dst_start_offset_minutes() { return 120;}
      static int dst_end_offset_minutes() { return 180; }
      static int dst_shift_length_minutes() { return 60; }
      static date_type local_dst_start_day(year_type year)
      {
        start_rule_functor start(start_day(year), 
                                 start_month(year));
        return start.get_date(year);      
      }
      static date_type local_dst_end_day(year_type year)
      {
        end_rule_functor end(end_day(year), 
                             end_month(year));
        return end.get_date(year);      
      }
    };

} } //namespace boost::date_time

#endif

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