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<title>Class template time_resolution_traits</title>
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<h2><span class="refentrytitle">Class template time_resolution_traits</span></h2>
<p>boost::date_time::time_resolution_traits</p>
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<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: <<a class="link" href="../../date_time/doxy.html#header.boost.date_time.time_resolution_traits_hpp" title="Header <boost/date_time/time_resolution_traits.hpp>">boost/date_time/time_resolution_traits.hpp</a>>
</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> frac_sec_type<span class="special">,</span> <span class="identifier">time_resolutions</span> res<span class="special">,</span>
<span class="preprocessor">#if</span><span class="special">(</span><span class="identifier">defined</span><span class="special">(</span><span class="identifier">BOOST_MSVC</span><span class="special">)</span><span class="special">&&</span><span class="special">(</span><span class="identifier">_MSC_VER</span><span class="special"><</span> <span class="number">1300</span><span class="special">)</span><span class="special">)</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">int64_t</span> resolution_adjust<span class="special">,</span>
<span class="preprocessor">#else</span> <span class="keyword">typename</span> <span class="identifier">frac_sec_type</span><span class="special">::</span><span class="identifier">int_type</span> resolution_adjust<span class="special">,</span>
<span class="preprocessor">#endif</span> <span class="keyword">unsigned</span> <span class="keyword">short</span> frac_digits<span class="special">,</span> <span class="keyword">typename</span> v_type <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">int32_t</span><span class="special">></span>
<span class="keyword">class</span> <a class="link" href="time_resolution_traits.html" title="Class template time_resolution_traits">time_resolution_traits</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">frac_sec_type</span><span class="special">::</span><span class="identifier">int_type</span> <a name="boost.date_time.time_resolution_traits.fractional_seconds_type"></a><span class="identifier">fractional_seconds_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">frac_sec_type</span><span class="special">::</span><span class="identifier">int_type</span> <a name="boost.date_time.time_resolution_traits.tick_type"></a><span class="identifier">tick_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">frac_sec_type</span><span class="special">::</span><span class="identifier">impl_type</span> <a name="boost.date_time.time_resolution_traits.impl_type"></a><span class="identifier">impl_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">v_type</span> <a name="boost.date_time.time_resolution_traits.day_type"></a><span class="identifier">day_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">v_type</span> <a name="boost.date_time.time_resolution_traits.hour_type"></a><span class="identifier">hour_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">v_type</span> <a name="boost.date_time.time_resolution_traits.min_type"></a><span class="identifier">min_type</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">v_type</span> <a name="boost.date_time.time_resolution_traits.sec_type"></a><span class="identifier">sec_type</span><span class="special">;</span>
<span class="comment">// <a class="link" href="time_resolution_traits.html#idp113438096-bb">public static functions</a></span>
<span class="keyword">static</span> <span class="identifier">fractional_seconds_type</span> <a class="link" href="time_resolution_traits.html#idp113438656-bb"><span class="identifier">as_number</span></a><span class="special">(</span><span class="identifier">impl_type</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">bool</span> <a class="link" href="time_resolution_traits.html#idp100004704-bb"><span class="identifier">is_adapted</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">static</span> <span class="identifier">time_resolutions</span> <a class="link" href="time_resolution_traits.html#idp100005824-bb"><span class="identifier">resolution</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">static</span> <span class="keyword">unsigned</span> <span class="keyword">short</span> <a class="link" href="time_resolution_traits.html#idp45538384-bb"><span class="identifier">num_fractional_digits</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">static</span> <span class="identifier">fractional_seconds_type</span> <a class="link" href="time_resolution_traits.html#idp45539504-bb"><span class="identifier">res_adjust</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<span class="keyword">static</span> <span class="identifier">tick_type</span>
<a class="link" href="time_resolution_traits.html#idp45540624-bb"><span class="identifier">to_tick_count</span></a><span class="special">(</span><span class="identifier">hour_type</span><span class="special">,</span> <span class="identifier">min_type</span><span class="special">,</span> <span class="identifier">sec_type</span><span class="special">,</span> <span class="identifier">fractional_seconds_type</span><span class="special">)</span><span class="special">;</span>
<span class="comment">// <a class="link" href="time_resolution_traits.html#idp106935264-bb">public member functions</a></span>
<a class="link" href="time_resolution_traits.html#idp106935824-bb"><span class="identifier">BOOST_STATIC_CONSTANT</span></a><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">int64_t</span><span class="special">,</span> <span class="identifier">ticks_per_second</span> <span class="special">=</span> <span class="identifier">resolution_adjust</span><span class="special">)</span><span class="special">;</span>
<a class="link" href="time_resolution_traits.html#idp45542560-bb"><span class="identifier">BOOST_STATIC_CONSTANT</span></a><span class="special">(</span><span class="identifier">fractional_seconds_type</span><span class="special">,</span>
<span class="identifier">ticks_per_second</span> <span class="special">=</span> <span class="identifier">resolution_adjust</span><span class="special">)</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idp198002128"></a><h2>Description</h2>
<div class="refsect2">
<a name="idp198002544"></a><h3>
<a name="idp113438096-bb"></a><code class="computeroutput">time_resolution_traits</code> public static functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="identifier">fractional_seconds_type</span> <a name="idp113438656-bb"></a><span class="identifier">as_number</span><span class="special">(</span><span class="identifier">impl_type</span> i<span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="keyword">bool</span> <a name="idp100004704-bb"></a><span class="identifier">is_adapted</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="identifier">time_resolutions</span> <a name="idp100005824-bb"></a><span class="identifier">resolution</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="keyword">unsigned</span> <span class="keyword">short</span> <a name="idp45538384-bb"></a><span class="identifier">num_fractional_digits</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"><span class="keyword">static</span> <span class="identifier">fractional_seconds_type</span> <a name="idp45539504-bb"></a><span class="identifier">res_adjust</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">static</span> <span class="identifier">tick_type</span>
<a name="idp45540624-bb"></a><span class="identifier">to_tick_count</span><span class="special">(</span><span class="identifier">hour_type</span> hours<span class="special">,</span> <span class="identifier">min_type</span> minutes<span class="special">,</span> <span class="identifier">sec_type</span> seconds<span class="special">,</span>
<span class="identifier">fractional_seconds_type</span> fs<span class="special">)</span><span class="special">;</span></pre>Any negative argument results in a negative tick_count. </li>
</ol></div>
</div>
<div class="refsect2">
<a name="idp198041200"></a><h3>
<a name="idp106935264-bb"></a><code class="computeroutput">time_resolution_traits</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem"><pre class="literallayout"> <a name="idp106935824-bb"></a><span class="identifier">BOOST_STATIC_CONSTANT</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">int64_t</span><span class="special">,</span> <span class="identifier">ticks_per_second</span> <span class="special">=</span> <span class="identifier">resolution_adjust</span><span class="special">)</span><span class="special">;</span></pre></li>
<li class="listitem"><pre class="literallayout"> <a name="idp45542560-bb"></a><span class="identifier">BOOST_STATIC_CONSTANT</span><span class="special">(</span><span class="identifier">fractional_seconds_type</span><span class="special">,</span>
<span class="identifier">ticks_per_second</span> <span class="special">=</span> <span class="identifier">resolution_adjust</span><span class="special">)</span><span class="special">;</span></pre></li>
</ol></div>
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<td align="right"><div class="copyright-footer">Copyright © 2001-2005 CrystalClear Software, Inc<p>Subject to the Boost Software License, Version 1.0. (See accompanying file
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