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<title>Struct template impl</title>
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<div class="refentry" title="Struct template impl">
<a name="boost.proto.and_.impl"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2><span class="refentrytitle">Struct template impl</span></h2>
<p>boost::proto::and_::impl</p>
</div>
<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="emphasis"><em>// In header: &lt;<a class="link" href="../../../proto/reference.html#header.boost.proto.matches_hpp" title="Header &lt;boost/proto/matches.hpp&gt;">boost/proto/matches.hpp</a>&gt;

</em></span>
<span class="bold"><strong>template</strong></span>&lt;<span class="bold"><strong>typename</strong></span> Expr, <span class="bold"><strong>typename</strong></span> State, <span class="bold"><strong>typename</strong></span> Data&gt; 
<span class="bold"><strong>struct</strong></span> <a class="link" href="impl.html" title="Struct template impl">impl</a> : <span class="bold"><strong></strong></span> <span class="type"><a class="link" href="../transform_impl.html" title="Struct template transform_impl">proto::transform_impl</a>&lt; Expr, State, Data &gt;</span> {
  <span class="emphasis"><em>// types</em></span>
  <span class="bold"><strong>typedef</strong></span> <span class="bold"><strong>typename</strong></span> boost::result_of&lt;G<sub>n</sub>(Expr, State, Data)&gt;::type <a name="boost.proto.and_.impl.result_type"></a>result_type;

  <span class="emphasis"><em>// <a class="link" href="impl.html#id1243895-bb">public member functions</a></em></span>
  <span class="type">result_type</span> <a class="link" href="impl.html#id1243900-bb"><span class="bold"><strong>operator</strong></span>()</a>(<span class="bold"><strong>typename</strong></span> impl::expr_param, 
                         <span class="bold"><strong>typename</strong></span> impl::state_param, 
                         <span class="bold"><strong>typename</strong></span> impl::data_param) <span class="bold"><strong>const</strong></span>;
};</pre></div>
<div class="refsect1" title="Description">
<a name="id1600708"></a><h2>Description</h2>
<div class="refsect2" title="impl public member functions">
<a name="id1600712"></a><h3>
<a name="id1243895-bb"></a><code class="computeroutput">impl</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem">
<pre class="literallayout"><span class="type">result_type</span> <a name="id1243900-bb"></a><span class="bold"><strong>operator</strong></span>()(<span class="bold"><strong>typename</strong></span> impl::expr_param expr, 
                       <span class="bold"><strong>typename</strong></span> impl::state_param state, 
                       <span class="bold"><strong>typename</strong></span> impl::data_param data) <span class="bold"><strong>const</strong></span>;</pre>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term">Parameters:</span></p></td>
<td><div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><code class="computeroutput">data</code></span></p></td>
<td><p>A data of arbitrary type </p></td>
</tr>
<tr>
<td><p><span class="term"><code class="computeroutput">expr</code></span></p></td>
<td><p>An expression </p></td>
</tr>
<tr>
<td><p><span class="term"><code class="computeroutput">state</code></span></p></td>
<td><p>The current state </p></td>
</tr>
</tbody>
</table></div></td>
</tr>
<tr>
<td><p><span class="term">Returns:</span></p></td>
<td><p>
                  <code class="computeroutput">G<sub>n</sub>()(expr, state, data)</code>
                </p></td>
</tr>
</tbody>
</table></div>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2008 Eric Niebler<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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