Update of /cvsroot/boost/boost/libs/date_time/xmldoc
In directory
sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv23930/libs/date_time/xmldoc
Modified Files:
changes.xml
Log Message:
Changes to fix the compile-time dst rules engines for 2007 US and Canada dst
changes
Index: changes.xml
===================================================================
RCS file: /cvsroot/boost/boost/libs/date_time/xmldoc/changes.xml,v
retrieving revision 1.14
retrieving revision 1.15
diff -u -d -r1.14 -r1.15
--- changes.xml 23 Feb 2007 02:21:58 -0000 1.14
+++ changes.xml 2 Mar 2007 02:04:54 -0000 1.15
@@ -33,6 +33,25 @@
historic timezone rules presently.
</entry>
</row>
+ <row>
+ <entry>Feature</entry>
+ <entry>
+ Two other dst calculation features have also been update to
reflect the new
+ US/Canada timzone rules. This is the
boost::date_time::us_dst_rules and
+ dst_calc_engine. While the us_dst_rules is officially
deprecated, a patch
+ by Graham Bennett has been applied which allows this class to
work correctly
+ for both historical and future dates. The dst_calc_engine was
updated to also
+ work for historical and future times. This allows the various
local_adjustor
+ classes to work correctly. There was an interface change for
classes using the
+ dst_calc_engine with custom dst traits classes. The traits
classes signatures
+ changed to take a 'year' parameter on most of the methods such
as end_month.
+ In addition, 2 new functions are needed on the traits classes:
+ <code>static date_type local_dst_start_day(year_type
year)</code> and
+ <code>static date_type local_dst_end_day(year_type
year)</code>.
+ Implementers should see
<code>date_time/local_timezone_defs.hpp</code> for
+ examples.
+ </entry>
+ </row>
<row>
<entry>Bug Fix</entry>
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