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263 lines
10 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
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<title>Boost Date-Time Library Documentation</title>
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<link href="doxygen.css" rel="stylesheet" type="text/css">
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</head>
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<body>
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<a href="../../../index.htm">
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<img align="left" src="../../../c++boost.gif" alt="C++ Boost">
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</a>
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<h1>Boost Date-Time Change History</h1>
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<p>
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<p> <p>
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<hr>
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<a href="index.html">Overall Index</a>
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<p>
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<h3>Changes from Boost 1.31 to 1.3? (date_time 1.02 to 1.03--prerelease)</h3>
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<p class="bold">
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<table>
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<tr class="row_title"><td>Type</td><td>Description</td></tr>
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<tr class="content">
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<td class="nowrap">Feature</td>
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<td>Output streaming now supports wide stream output on compiler /
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standard library combinations that support wide streams.
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This allows code like:<br>
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std::wstringstream wss;<br>
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date d(2003,Aug,21);<br>
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wss << d;<br>
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Thanks to Bart Garst for this change.
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</td>
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</tr>
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</table>
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<h3>Changes from Boost 1.30 to 1.31 (date_time 1.01 to 1.02)</h3>
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<p class="bold">
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<table>
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<tr class="row_title"><td>Type</td><td>Description</td></tr>
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<tr class="content">
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<td class="nowrap">Bug Fix</td>
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<td>Time_duration from_string is now correctly constructed
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from a negative value. (ie "-0:39:00.000")
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Code provided by Bart Garst.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Bug Fix</td>
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<td>Fixed many MSVC compiler warnings when compiled with
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warning level 4.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Bug Fix</td>
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<td>Fixed many GCC compiler warnings when compiled with
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-Wshadow.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Feature</td>
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<td>Added prefix decrement operator (--) for date and time iterators.
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See <a href="time_iterators.html">Time Iterators</a>
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and <a href="date_iterators.html">Date Iterators</a>
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for more details.
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Code provided by Bart Garst.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Feature</td>
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<td>Special values functionality (eg: infinities, not_a_date_time)
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added for date_duration, time_duration and time classes.
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Code provided by Bart Garst.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Bug Fix</td>
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<td>Fixed time_duration_traits calculation bug which was
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causing time duration to be limited to 32bit range even
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when 64 bits were available. Thanks to Joel de Guzman
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for tracking this down.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Bug Fix</td>
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<td>Provided additional operators for duration types (eg:
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date_duration, time_duration). This includes divideable
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by integer and fixes to allow +=, -= operators. Thanks to
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Bart Garst for writing this code. Also, the documentation
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of <a href="Calculations.html">Calculations</a> has been
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improved.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Bug Fix</td>
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<td>Added typedefs to boost::gregorian gregorian_types.hpp various
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date_generator function classes.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Feature</td>
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<td>Added from_time_t function to convert time_t to a ptime. See
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<a href="class_ptime.html#constructfromtimet">from_time_t</a>
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from more.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Feature</td>
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<td>Added a span function for combining periods. See
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<a href="class_date_period.html">date period</a> and
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<a href="class_time_period.html">time period</a> docs.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Feature</td>
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<td>Added a function to time_duration to get the total number
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of seconds in a duration truncating any fractional seconds.
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In addition, other resolutions were added to allow for
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easy conversions. For example<br>
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seconds(1).total_milliseconds() == 1000<br>
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seconds(1).total_microseconds() == 1000000<br>
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hours(1).total_milliseconds() == 3600*1000 //3600 sec/hour<br>
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seconds(1).total_nanoseconds() == 1000000000<br>
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See <a href="class_time_duration.html">time duration</a> for more.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Feature</td>
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<td>Added output streaming operators for the
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<a href="date_algorithms.html">date generator</a>
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classes - partial_date, first_kday_after, first_kday_before, etc. Thanks to Bart Garst for this work.
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</td>
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<tr class="content">
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<td class="nowrap">Feature</td>
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<td>Added unary- operators for durations for reversing the sign
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of a time duration. For example: <br>
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time_duration td(5,0,0); //5 hours<br>
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td = -td; //-5 hours<br>
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Thanks to Bart Garst for this work.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Feature</td>
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<td>Added support for parsing strings with 'month names'.
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Thus creating a date object from string now accepts
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multiple formats ("2003-10-31","2003-Oct-31", and
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"2003-October-31").
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Thus, date d = from_simple_string("2003-Feb-27") is now
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allowed. A bad month name string
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(from_simple_string("2003-SomeBogusMonthName-27")) will
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cause a bad_month exception. In addition, there are
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new convenience functions that handle different orderings of the
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year, month, and day. The from_us_date and from_uk_date
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<a href="class_date.html#constructfromstring">(reference)</a>
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provide parsing for the order month-day-year and day-month-year respectively.
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On most compilers the month string compare is case insensitive.
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Thanks to Bart Garst for this work.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Bug Fix</td>
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<td>Various documentation fixes. Thanks to Bart Garst for
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updates.
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</td>
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</tr>
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</table>
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<h3>Changes from Boost 1.29 to 1.30 (date_time 1.00 to 1.01)</h3>
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<p class="bold">
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Notice: The interface to the <font class="el">partial_date</font>
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class
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<a href="date_algorithms.html">(see date_algorithms)</a>
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was changed. The order of construction parameters was changed
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which will cause some code to fail execution. This change was
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made to facilitate more generic local time adjustment code.
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Thus instead of specifying partial_date pd(Dec,25) the code
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needs to be changed to partial_date pd(25, Dec);
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<p>
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<table>
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<tr class="row_title"><td>Type</td><td>Description</td></tr>
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<tr class="content">
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<td class="nowrap">Bug Fix</td>
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<td>Added new experimental feature for Daylight Savings Time
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calculations. This allows traits based specification of
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dst rules.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Feature</td>
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<td>Added new interfaces to calculate julian day and modified
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julian day to the gregorian date class.
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See <a href="class_date.html#accessors">boost::gregorian::date</a>.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Feature</td>
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<td>Add new interface to calculate iso 8601 week number for
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a date.
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See <a href="class_date.html#accessors">boost::gregorian::date</a>.
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</td>
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<tr class="content">
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<td class="nowrap">Feature</td>
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<td>Add an iso 8601 time date-time format (eg: YYYYMMDDTHHHMMSS)
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parsing function.
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See <a href="class_ptime.html#constructfromstring">Class ptime</a> for more information.
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</td>
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<tr class="content">
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<td class="nowrap">Feature</td>
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<td>Added a length function to the period template so that both
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date_periods and time_periods will now support this function.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Bug Fix</td>
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<td>Split Jamfiles so that libs/date_time/build/Jamfile
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only builds library and /libs/date_time/libs/test/Jamfile
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which runs tests.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Bug Fix</td>
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<td>Fixed many minor documentation issues.</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Bug Fix</td>
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<td>Removed the DATE_TIME_INLINE macro which was causing
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link errors. This macro is no longer needed in projects
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using the library.
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</td>
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<tr class="content">
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<td class="nowrap">Bug Fix</td>
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<td>Added missing typedef for year_iterator to
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gregorian_types.hpp</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Bug Fix</td>
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<td>Fixed problem with gregorian ostream operators
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that prevented the use of wide streams.
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</td>
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</tr>
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<tr class="content">
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<td class="nowrap">Bug Fix</td>
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<td>Tighten error handling for dates so that
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date(2002, 2, 29) will throw a bad_day_of_month
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exception.
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Previously the date would be incorrectly constructed.
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Reported by sourceforge bug: 628054 among others.
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</td>
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</tr>
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</table>
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<hr>
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<address><small>
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<!-- hhmts start -->
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Last modified: Sun Feb 1 11:32:09 MST 2004
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<!-- hhmts end -->
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by <a href="mailto:jeff@crystalclearsoftware.com">Jeff Garland</a> © 2000-2004
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</small></address>
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</body>
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</html>
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