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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>
  30   <span class="identifier">visit</span><span class="special">(</span><a class="link" href="attribute_name.html" title="Class attribute_name">attribute_name</a> <span class="keyword">const</span> <span class="special">&amp;</span> name<span class="special">,</span> <span class="identifier">record_view</span> <span class="keyword">const</span> <span class="special">&amp;</span> rec<span class="special">,</span>
  31         <span class="identifier">VisitorT</span> visitor<span class="special">)</span><span class="special">;</span></pre></div>
  32 <div class="refsect1">
  33 <a name="idp94032624"></a><h2>Description</h2>
  34 <p>The function applies a visitor to an attribute value from the view. The user has to explicitly specify the type or set of possible types of the attribute value to be visited.</p>
  35 <p>
  36
  37 </p>
  38 <div class="variablelist"><table border="0" class="variablelist compact">
  39 <colgroup>
  40 <col align="left" valign="top">
  41 <col>
  42 </colgroup>
  43 <tbody>
  44 <tr>
  45 <td><p><span class="term">Parameters:</span></p></td>
  46 <td><div class="variablelist"><table border="0" class="variablelist compact">
  47 <colgroup>
  48 <col align="left" valign="top">
  49 <col>
  50 </colgroup>
  51 <tbody>
  52 <tr>
  53 <td><p><span class="term"><code class="computeroutput">name</code></span></p></td>
  54 <td><p>The name of the attribute value to visit. </p></td>
  55 </tr>
  56 <tr>
  57 <td><p><span class="term"><code class="computeroutput">rec</code></span></p></td>
  58 <td><p>A log record view. The attribute value will be sought among those associated with the record. </p></td>
  59 </tr>
  60 <tr>
  61 <td><p><span class="term"><code class="computeroutput">visitor</code></span></p></td>
  62 <td><p>A receiving function object to pass the attribute value to. </p></td>
  63 </tr>
  64 </tbody>
  65 </table></div></td>
  66 </tr>
  67 <tr>
  68 <td><p><span class="term">Returns:</span></p></td>
  69 <td><p>The result of visitation. </p></td>
  70 </tr>
  71 </tbody>
  72 </table></div>
  73 </div>
  74 </div>
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  76 <td align="left"></td>
  77 <td align="right"><div class="copyright-footer">Copyright &#169; 2007-2014 Andrey Semashev<p>
  78         Distributed under the Boost Software License, Version 1.0. (See accompanying
  79         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>).
  80       </p>
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