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   4 <title>Function template visit</title>
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  21 <h2><span class="refentrytitle">Function template visit</span></h2>
  22 <p>boost::log::visit</p>
  23 </div>
  24 <h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2>
  25 <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.value_visitation_hpp" title="Header &lt;boost/log/attributes/value_visitation.hpp&gt;">boost/log/attributes/value_visitation.hpp</a>&gt;
  26
  27 </span>
  28 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> T<span class="special">,</span> <span class="keyword">typename</span> VisitorT<span class="special">&gt;</span>
  29   <a class="link" href="visitation_result.html" title="Class visitation_result">visitation_result</a> <span class="identifier">visit</span><span class="special">(</span><a class="link" href="attribute_value.html" title="Class attribute_value">attribute_value</a> <span class="keyword">const</span> <span class="special">&amp;</span> value<span class="special">,</span> <span class="identifier">VisitorT</span> visitor<span class="special">)</span><span class="special">;</span></pre></div>
  30 <div class="refsect1">
  31 <a name="idp110688016"></a><h2>Description</h2>
  32 <p>The function applies a visitor to an attribute value. The user has to explicitly specify the type or set of possible types of the attribute value to be visited.</p>
  33 <p>
  34
  35 </p>
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  37 <colgroup>
  38 <col align="left" valign="top">
  39 <col>
  40 </colgroup>
  41 <tbody>
  42 <tr>
  43 <td><p><span class="term">Parameters:</span></p></td>
  44 <td><div class="variablelist"><table border="0" class="variablelist compact">
  45 <colgroup>
  46 <col align="left" valign="top">
  47 <col>
  48 </colgroup>
  49 <tbody>
  50 <tr>
  51 <td><p><span class="term"><code class="computeroutput">value</code></span></p></td>
  52 <td><p>The attribute value to visit. </p></td>
  53 </tr>
  54 <tr>
  55 <td><p><span class="term"><code class="computeroutput">visitor</code></span></p></td>
  56 <td><p>A receiving function object to pass the attribute value to. </p></td>
  57 </tr>
  58 </tbody>
  59 </table></div></td>
  60 </tr>
  61 <tr>
  62 <td><p><span class="term">Returns:</span></p></td>
  63 <td><p>The result of visitation. </p></td>
  64 </tr>
  65 </tbody>
  66 </table></div>
  67 </div>
  68 </div>
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  70 <td align="left"></td>
  71 <td align="right"><div class="copyright-footer">Copyright &#169; 2007-2016 Andrey Semashev<p>
  72         Distributed under the Boost Software License, Version 1.0. (See accompanying
  73         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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