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<title>Class date</title>
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<div class="refentry" lang="en">
<a name="boost.gregorian.date"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2><span class="refentrytitle">Class date</span></h2>
<p>boost::gregorian::date — A date type based on gregorian_calendar. </p>
</div>
<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis">
<span class="bold"><strong>class</strong></span> date {
<span class="bold"><strong>public</strong></span>:
<span class="emphasis"><em>// types</em></span>
<span class="bold"><strong>typedef</strong></span> gregorian_calendar::year_type year_type;
<span class="bold"><strong>typedef</strong></span> gregorian_calendar::month_type month_type;
<span class="bold"><strong>typedef</strong></span> gregorian_calendar::day_type day_type;
<span class="bold"><strong>typedef</strong></span> gregorian_calendar::day_of_year_type day_of_year_type;
<span class="bold"><strong>typedef</strong></span> gregorian_calendar::ymd_type ymd_type;
<span class="bold"><strong>typedef</strong></span> gregorian_calendar::date_rep_type date_rep_type;
<span class="bold"><strong>typedef</strong></span> gregorian_calendar::date_int_type date_int_type;
<span class="bold"><strong>typedef</strong></span> date_duration duration_type;
<span class="emphasis"><em>// <a href="date.html#boost.gregorian.dateconstruct-copy-destruct">construct/copy/destruct</a></em></span>
<a href="date.html#id965039-bb">date</a>();
<a href="date.html#id1108828-bb">date</a>(year_type, month_type, day_type);
<a href="date.html#id837863-bb">date</a>(<span class="bold"><strong>const</strong></span> ymd_type &);
<a href="date.html#id936851-bb">date</a>(<span class="bold"><strong>const</strong></span> date_int_type &);
<a href="date.html#id835710-bb">date</a>(date_rep_type);
<a href="date.html#id835729-bb">date</a>(special_values);
<span class="emphasis"><em>// <a href="date.html#id1109300-bb">public member functions</a></em></span>
<span class="type">date_int_type</span> <a href="date.html#id868803-bb">julian_day</a>() <span class="bold"><strong>const</strong></span>;
<span class="type">day_of_year_type</span> <a href="date.html#id868820-bb">day_of_year</a>() <span class="bold"><strong>const</strong></span>;
<span class="type"><span class="bold"><strong>long</strong></span></span> <a href="date.html#id798683-bb">modjulian_day</a>() <span class="bold"><strong>const</strong></span>;
<span class="type"><span class="bold"><strong>int</strong></span></span> <a href="date.html#id1036065-bb">week_number</a>() <span class="bold"><strong>const</strong></span>;
<span class="type">date_int_type</span> <a href="date.html#id1031184-bb">day_number</a>() <span class="bold"><strong>const</strong></span>;
<span class="type"><a href="date.html" title="Class date">date</a></span> <a href="date.html#id908610-bb">end_of_month</a>() <span class="bold"><strong>const</strong></span>;
};</pre></div>
<div class="refsect1" lang="en">
<a name="id1150185"></a><h2>Description</h2>
<p>This class is the primary interface for programming with greogorian dates. The is a lightweight type that can be freely passed by value. All comparison operators are supported. </p>
<div class="refsect2" lang="en">
<a name="id1150194"></a><h3>
<a name="boost.gregorian.dateconstruct-copy-destruct"></a><code class="computeroutput">date</code> construct/copy/destruct</h3>
<div class="orderedlist"><ol type="1">
<li><pre class="literallayout"><a name="id965039-bb"></a>date();</pre></li>
<li><pre class="literallayout"><a name="id1108828-bb"></a>date(year_type y, month_type m, day_type d);</pre></li>
<li><pre class="literallayout"><a name="id837863-bb"></a>date(<span class="bold"><strong>const</strong></span> ymd_type & ymd);</pre></li>
<li><pre class="literallayout"><a name="id936851-bb"></a>date(<span class="bold"><strong>const</strong></span> date_int_type & rhs);</pre></li>
<li><pre class="literallayout"><a name="id835710-bb"></a>date(date_rep_type rhs);</pre></li>
<li><pre class="literallayout"><a name="id835729-bb"></a>date(special_values sv);</pre></li>
</ol></div>
</div>
<div class="refsect2" lang="en">
<a name="id1150306"></a><h3>
<a name="id1109300-bb"></a><code class="computeroutput">date</code> public member functions</h3>
<div class="orderedlist"><ol type="1">
<li><pre class="literallayout"><span class="type">date_int_type</span> <a name="id868803-bb"></a>julian_day() <span class="bold"><strong>const</strong></span>;</pre></li>
<li><pre class="literallayout"><span class="type">day_of_year_type</span> <a name="id868820-bb"></a>day_of_year() <span class="bold"><strong>const</strong></span>;</pre></li>
<li><pre class="literallayout"><span class="type"><span class="bold"><strong>long</strong></span></span> <a name="id798683-bb"></a>modjulian_day() <span class="bold"><strong>const</strong></span>;</pre></li>
<li><pre class="literallayout"><span class="type"><span class="bold"><strong>int</strong></span></span> <a name="id1036065-bb"></a>week_number() <span class="bold"><strong>const</strong></span>;</pre></li>
<li><pre class="literallayout"><span class="type">date_int_type</span> <a name="id1031184-bb"></a>day_number() <span class="bold"><strong>const</strong></span>;</pre></li>
<li><pre class="literallayout"><span class="type"><a href="date.html" title="Class date">date</a></span> <a name="id908610-bb"></a>end_of_month() <span class="bold"><strong>const</strong></span>;</pre></li>
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