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<title>Class template date_itr_base</title>
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<h2><span class="refentrytitle">Class template date_itr_base</span></h2>
<p>boost::date_time::date_itr_base &#8212; Base date iterator type. </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="comment">// In header: &lt;<a class="link" href="../../date_time/doxy.html#header.boost.date_time.date_iterator_hpp" title="Header &lt;boost/date_time/date_iterator.hpp&gt;">boost/date_time/date_iterator.hpp</a>&gt;

</span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> date_type<span class="special">&gt;</span> 
<span class="keyword">class</span> <a class="link" href="date_itr_base.html" title="Class template date_itr_base">date_itr_base</a> <span class="special">{</span>
<span class="keyword">public</span><span class="special">:</span>
  <span class="comment">// types</span>
  <span class="keyword">typedef</span> <span class="identifier">date_type</span><span class="special">::</span><span class="identifier">duration_type</span> <a name="boost.date_time.date_itr_base.duration_type"></a><span class="identifier">duration_type</span><span class="special">;</span>    
  <span class="keyword">typedef</span> <span class="identifier">date_type</span>                <a name="boost.date_time.date_itr_base.value_type"></a><span class="identifier">value_type</span><span class="special">;</span>       
  <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">input_iterator_tag</span>  <a name="boost.date_time.date_itr_base.iterator_category"></a><span class="identifier">iterator_category</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="date_itr_base.html#boost.date_time.date_itr_baseconstruct-copy-destruct">construct/copy/destruct</a></span>
  <a class="link" href="date_itr_base.html#idp96957040-bb"><span class="identifier">date_itr_base</span></a><span class="special">(</span><span class="identifier">date_type</span><span class="special">)</span><span class="special">;</span>
  <a class="link" href="date_itr_base.html#idp96958016-bb"><span class="special">~</span><span class="identifier">date_itr_base</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>

  <span class="comment">// <a class="link" href="date_itr_base.html#idp46156592-bb">public member functions</a></span>
  <a class="link" href="date_itr_base.html" title="Class template date_itr_base">date_itr_base</a> <span class="special">&amp;</span> <a class="link" href="date_itr_base.html#idp46157152-bb"><span class="keyword">operator</span><span class="special">++</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <a class="link" href="date_itr_base.html" title="Class template date_itr_base">date_itr_base</a> <span class="special">&amp;</span> <a class="link" href="date_itr_base.html#idp38198592-bb"><span class="keyword">operator</span><span class="special">--</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">virtual</span> <span class="identifier">duration_type</span> <a class="link" href="date_itr_base.html#idp110791520-bb"><span class="identifier">get_offset</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span>
  <span class="keyword">virtual</span> <span class="identifier">duration_type</span> <a class="link" href="date_itr_base.html#idp46287440-bb"><span class="identifier">get_neg_offset</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span>
  <span class="identifier">date_type</span> <a class="link" href="date_itr_base.html#idp69859088-bb"><span class="keyword">operator</span><span class="special">*</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <span class="identifier">date_type</span> <span class="special">*</span> <a class="link" href="date_itr_base.html#idp49852096-bb"><span class="keyword">operator</span><span class="special">-&gt;</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">bool</span> <a class="link" href="date_itr_base.html#idp107081440-bb"><span class="keyword">operator</span><span class="special">&lt;</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">bool</span> <a class="link" href="date_itr_base.html#idp113191264-bb"><span class="keyword">operator</span><span class="special">&lt;=</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">bool</span> <a class="link" href="date_itr_base.html#idp72262768-bb"><span class="keyword">operator</span><span class="special">&gt;</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">bool</span> <a class="link" href="date_itr_base.html#idp39021760-bb"><span class="keyword">operator</span><span class="special">&gt;=</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">bool</span> <a class="link" href="date_itr_base.html#idp102902944-bb"><span class="keyword">operator</span><span class="special">==</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
  <span class="keyword">bool</span> <a class="link" href="date_itr_base.html#idp104016224-bb"><span class="keyword">operator</span><span class="special">!=</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span><span class="special">)</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idp187998928"></a><h2>Description</h2>
<p>This class provides the skeleton for the creation of iterators. New and interesting interators can be created by plugging in a new function that derives the next value from the current state. generation of various types of -based information.</p>
<p><span class="bold"><strong>Template Parameters</strong></span></p>
<p><span class="bold"><strong>date_type</strong></span></p>
<p>The date_type is a concrete date_type. The date_type must define a duration_type and a calendar_type. </p>
<div class="refsect2">
<a name="idp188001600"></a><h3>
<a name="boost.date_time.date_itr_baseconstruct-copy-destruct"></a><code class="computeroutput">date_itr_base</code> 
        public
       construct/copy/destruct</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem"><pre class="literallayout"><a name="idp96957040-bb"></a><span class="identifier">date_itr_base</span><span class="special">(</span><span class="identifier">date_type</span> d<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><a name="idp96958016-bb"></a><span class="special">~</span><span class="identifier">date_itr_base</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
</ol></div>
</div>
<div class="refsect2">
<a name="idp188012320"></a><h3>
<a name="idp46156592-bb"></a><code class="computeroutput">date_itr_base</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem"><pre class="literallayout"><a class="link" href="date_itr_base.html" title="Class template date_itr_base">date_itr_base</a> <span class="special">&amp;</span> <a name="idp46157152-bb"></a><span class="keyword">operator</span><span class="special">++</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><a class="link" href="date_itr_base.html" title="Class template date_itr_base">date_itr_base</a> <span class="special">&amp;</span> <a name="idp38198592-bb"></a><span class="keyword">operator</span><span class="special">--</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">virtual</span> <span class="identifier">duration_type</span> <a name="idp110791520-bb"></a><span class="identifier">get_offset</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span> current<span class="special">)</span> <span class="keyword">const</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">virtual</span> <span class="identifier">duration_type</span> <a name="idp46287440-bb"></a><span class="identifier">get_neg_offset</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span> current<span class="special">)</span> <span class="keyword">const</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="identifier">date_type</span> <a name="idp69859088-bb"></a><span class="keyword">operator</span><span class="special">*</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="identifier">date_type</span> <span class="special">*</span> <a name="idp49852096-bb"></a><span class="keyword">operator</span><span class="special">-&gt;</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">bool</span> <a name="idp107081440-bb"></a><span class="keyword">operator</span><span class="special">&lt;</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span> d<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">bool</span> <a name="idp113191264-bb"></a><span class="keyword">operator</span><span class="special">&lt;=</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span> d<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">bool</span> <a name="idp72262768-bb"></a><span class="keyword">operator</span><span class="special">&gt;</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span> d<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">bool</span> <a name="idp39021760-bb"></a><span class="keyword">operator</span><span class="special">&gt;=</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span> d<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">bool</span> <a name="idp102902944-bb"></a><span class="keyword">operator</span><span class="special">==</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span> d<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">bool</span> <a name="idp104016224-bb"></a><span class="keyword">operator</span><span class="special">!=</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">date_type</span> <span class="special">&amp;</span> d<span class="special">)</span><span class="special">;</span></pre></li>
</ol></div>
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