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28<h2><span class="refentrytitle">Class template null_dst_rules</span></h2>
29<p>boost::date_time::null_dst_rules &#8212; Used for local time adjustments in places that don't use dst. </p>
30</div>
31<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
32<div xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv"><pre class="synopsis"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> date_type_, <span class="bold"><strong>typename</strong></span> time_duration_type_&gt; 
33<span class="bold"><strong>class</strong></span> null_dst_rules {
34<span class="bold"><strong>public</strong></span>:
35  <span class="emphasis"><em>// types</em></span>
36  <span class="bold"><strong>typedef</strong></span> time_duration_type_ time_duration_type;
37  <span class="bold"><strong>typedef</strong></span> date_type_          date_type;         
38
39  <span class="emphasis"><em>// <a href="null_dst_rules.html#id2398068-bb">public static functions</a></em></span>
40  <span class="type">time_is_dst_result</span> 
41  <a href="null_dst_rules.html#id2515441-bb">local_is_dst</a>(<span class="bold"><strong>const</strong></span> date_type &amp;, <span class="bold"><strong>const</strong></span> time_duration_type &amp;) ;
42  <span class="type">time_is_dst_result</span> 
43  <a href="null_dst_rules.html#id2419378-bb">utc_is_dst</a>(<span class="bold"><strong>const</strong></span> date_type &amp;, <span class="bold"><strong>const</strong></span> time_duration_type &amp;) ;
44  <span class="type"><span class="bold"><strong>bool</strong></span></span> <a href="null_dst_rules.html#id2431601-bb">is_dst_boundary_day</a>(date_type) ;
45  <span class="type">time_duration_type</span> <a href="null_dst_rules.html#id2512657-bb">dst_offset</a>() ;
46};</pre></div>
47<div class="refsect1" lang="en">
48<a name="id2633136"></a><h2>Description</h2>
49<div class="refsect2" lang="en">
50<a name="id2633140"></a><h3>
51<a name="id2398068-bb"></a><code class="computeroutput">null_dst_rules</code> public static functions</h3>
52<div class="orderedlist"><ol type="1">
53<li>
54<pre class="literallayout"><span class="type">time_is_dst_result</span> 
55<a name="id2515441-bb"></a>local_is_dst(<span class="bold"><strong>const</strong></span> date_type &amp; , <span class="bold"><strong>const</strong></span> time_duration_type &amp; ) ;</pre>
56<p></p>
57</li>
58<li><pre class="literallayout"><span class="type">time_is_dst_result</span> 
59<a name="id2419378-bb"></a>utc_is_dst(<span class="bold"><strong>const</strong></span> date_type &amp; , <span class="bold"><strong>const</strong></span> time_duration_type &amp; ) ;</pre></li>
60<li><pre class="literallayout"><span class="type"><span class="bold"><strong>bool</strong></span></span> <a name="id2431601-bb"></a>is_dst_boundary_day(date_type d) ;</pre></li>
61<li><pre class="literallayout"><span class="type">time_duration_type</span> <a name="id2512657-bb"></a>dst_offset() ;</pre></li>
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