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26<a name="microsec_clock"></a><div class="titlepage"></div>
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28<h2><span class="refentrytitle">Class template microsec_clock</span></h2>
29<p>boost::date_time::microsec_clock &#8212; A clock providing microsecond level resolution. </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> time_type&gt; 
33<span class="bold"><strong>class</strong></span> microsec_clock {
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_type::date_type          date_type;             
37  <span class="bold"><strong>typedef</strong></span> time_type::time_duration_type time_duration_type;    
38  <span class="bold"><strong>typedef</strong></span> time_duration_type::rep_type  resolution_traits_type;
39
40  <span class="emphasis"><em>// <a href="microsec_clock.html#id2479179-bb">public static functions</a></em></span>
41  <span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> time_zone_type&gt; 
42    <span class="type">time_type</span> <a href="microsec_clock.html#id2479184-bb">local_time</a>(shared_ptr&lt; time_zone_type &gt;) ;
43  <span class="type">time_type</span> <a href="microsec_clock.html#id2465546-bb">local_time</a>() ;
44  <span class="type">time_type</span> <a href="microsec_clock.html#id2465563-bb">universal_time</a>() ;
45
46  <span class="emphasis"><em>// <a href="microsec_clock.html#id2465582-bb">private static functions</a></em></span>
47  <span class="type">time_type</span> <a href="microsec_clock.html#id2465586-bb">create_time</a>(TZ_FOR_CREATE) ;
48  <span class="type">time_type</span> <a href="microsec_clock.html#id2433422-bb">local_time</a>() ;
49  <span class="type">time_type</span> <a href="microsec_clock.html#id2433439-bb">universal_time</a>() ;
50  <span class="type">time_type</span> <a href="microsec_clock.html#id2499124-bb">create_time</a>(FILETIME &amp;, TZ_FOR_CREATE) ;
51};</pre></div>
52<div class="refsect1" lang="en">
53<a name="id2645362"></a><h2>Description</h2>
54<p>A high precision clock that measures the local time at a resolution up to microseconds and adjusts to the resolution of the time system. For example, for the a library configuration with nano second resolution, the last 3 places of the fractional seconds will always be 000 since there are 1000 nano-seconds in a micro second. </p>
55<div class="refsect2" lang="en">
56<a name="id2645374"></a><h3>
57<a name="id2479179-bb"></a><code class="computeroutput">microsec_clock</code> public static functions</h3>
58<div class="orderedlist"><ol type="1">
59<li><pre class="literallayout"><span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> time_zone_type&gt; 
60  <span class="type">time_type</span> <a name="id2479184-bb"></a>local_time(shared_ptr&lt; time_zone_type &gt; tz_ptr) ;</pre></li>
61<li><pre class="literallayout"><span class="type">time_type</span> <a name="id2465546-bb"></a>local_time() ;</pre></li>
62<li><pre class="literallayout"><span class="type">time_type</span> <a name="id2465563-bb"></a>universal_time() ;</pre></li>
63</ol></div>
64</div>
65<div class="refsect2" lang="en">
66<a name="id2645458"></a><h3>
67<a name="id2465582-bb"></a><code class="computeroutput">microsec_clock</code> private static functions</h3>
68<div class="orderedlist"><ol type="1">
69<li><pre class="literallayout"><span class="type">time_type</span> <a name="id2465586-bb"></a>create_time(TZ_FOR_CREATE tz) ;</pre></li>
70<li><pre class="literallayout"><span class="type">time_type</span> <a name="id2433422-bb"></a>local_time() ;</pre></li>
71<li><pre class="literallayout"><span class="type">time_type</span> <a name="id2433439-bb"></a>universal_time() ;</pre></li>
72<li><pre class="literallayout"><span class="type">time_type</span> <a name="id2499124-bb"></a>create_time(FILETIME &amp; ft, TZ_FOR_CREATE tz) ;</pre></li>
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