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<h2><span class="refentrytitle">Struct impl</span></h2>
<p>boost::log::attributes::basic_clock::impl &#8212; Attribute factory implementation. </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: &lt;<a class="link" href="../../../../attributes.html#header.boost.log.attributes.clock_hpp" title="Header &lt;boost/log/attributes/clock.hpp&gt;">boost/log/attributes/clock.hpp</a>&gt;
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<span class="comment">// Attribute factory implementation.</span>
<span class="keyword">struct</span> <a class="link" href="impl.html" title="Struct impl">impl</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">attribute</span><span class="special">::</span><span class="identifier">impl</span> <span class="special">{</span>
<span class="comment">// <a class="link" href="impl.html#idp41909152-bb">public member functions</a></span>
<span class="keyword">virtual</span> <a class="link" href="../../attribute_value.html" title="Class attribute_value">attribute_value</a> <a class="link" href="impl.html#idp41909712-bb"><span class="identifier">get_value</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
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<a name="idp106529232"></a><h2>Description</h2>
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<a name="idp106529648"></a><h3>
<a name="idp41909152-bb"></a><code class="computeroutput">impl</code> public member functions</h3>
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<pre class="literallayout"><span class="keyword">virtual</span> <a class="link" href="../../attribute_value.html" title="Class attribute_value">attribute_value</a> <a name="idp41909712-bb"></a><span class="identifier">get_value</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre>
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<td><p><span class="term">Returns:</span></p></td>
<td><p>The actual attribute value. It shall not return empty values (exceptions shall be used to indicate errors). </p></td>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2007-2015 Andrey
Semashev<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>).
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