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<title>Struct template transform</title>
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<div class="refentry">
<a name="boost.proto.transform"></a><div class="titlepage"></div>
<div class="refnamediv">
<h2><span class="refentrytitle">Struct template transform</span></h2>
<p>boost::proto::transform — Inherit from this to make your type a <a class="link" href="../../PrimitiveTransform.html" title="Concept PrimitiveTransform">PrimitiveTransform</a>.</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="comment">// In header: <<a class="link" href="../../proto/reference.html#header.boost.proto.transform.impl_hpp" title="Header <boost/proto/transform/impl.hpp>">boost/proto/transform/impl.hpp</a>>
</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <a class="link" href="../../PrimitiveTransform.html" title="Concept PrimitiveTransform">PrimitiveTransform</a><span class="special">></span>
<span class="keyword">struct</span> <a class="link" href="transform.html" title="Struct template transform">transform</a> <span class="special">{</span>
<span class="comment">// types</span>
<span class="keyword">typedef</span> <span class="identifier">PrimitiveTransform</span> <a name="boost.proto.transform.transform_type"></a><span class="identifier">transform_type</span><span class="special">;</span>
<span class="comment">// member classes/structs/unions</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> This<span class="special">,</span> <span class="keyword">typename</span> <a class="link" href="../../Expr.html" title="Concept Expr">Expr</a><span class="special">></span>
<span class="keyword">struct</span> <a class="link" href="transform/result_This_E_idp207219872.html" title="Struct template result<This(Expr)>">result</a><span class="special"><</span><span class="identifier">This</span><span class="special">(</span><span class="identifier">Expr</span><span class="special">)</span><span class="special">></span> <span class="special">{</span>
<span class="comment">// types</span>
<span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">PrimitiveTransform</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">impl</span><span class="special"><</span> <span class="identifier">Expr</span><span class="special">,</span> <em class="replaceable"><code><span class="identifier">unspecified</span></code></em><span class="special">,</span> <em class="replaceable"><code><span class="identifier">unspecified</span></code></em> <span class="special">></span><span class="special">::</span><span class="identifier">result_type</span> <a class="link" href="transform/result_This_E_idp207219872.html#boost.proto.transform.result_This(E_idp207219872.type"><span class="identifier">type</span></a><span class="special">;</span>
<span class="special">}</span><span class="special">;</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> This<span class="special">,</span> <span class="keyword">typename</span> <a class="link" href="../../Expr.html" title="Concept Expr">Expr</a><span class="special">,</span> <span class="keyword">typename</span> State<span class="special">></span>
<span class="keyword">struct</span> <a class="link" href="transform/result_This_E_idp207225152.html" title="Struct template result<This(Expr, State)>">result</a><span class="special"><</span><span class="identifier">This</span><span class="special">(</span><span class="identifier">Expr</span><span class="special">,</span> <span class="identifier">State</span><span class="special">)</span><span class="special">></span> <span class="special">{</span>
<span class="comment">// types</span>
<span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">PrimitiveTransform</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">impl</span><span class="special"><</span> <span class="identifier">Expr</span><span class="special">,</span> <span class="identifier">State</span><span class="special">,</span> <em class="replaceable"><code><span class="identifier">unspecified</span></code></em> <span class="special">></span><span class="special">::</span><span class="identifier">result_type</span> <a class="link" href="transform/result_This_E_idp207225152.html#boost.proto.transform.result_This(E_idp207225152.type"><span class="identifier">type</span></a><span class="special">;</span>
<span class="special">}</span><span class="special">;</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> This<span class="special">,</span> <span class="keyword">typename</span> <a class="link" href="../../Expr.html" title="Concept Expr">Expr</a><span class="special">,</span> <span class="keyword">typename</span> State<span class="special">,</span> <span class="keyword">typename</span> Data<span class="special">></span>
<span class="keyword">struct</span> <a class="link" href="transform/result_This_E_idp207230560.html" title="Struct template result<This(Expr, State, Data)>">result</a><span class="special"><</span><span class="identifier">This</span><span class="special">(</span><span class="identifier">Expr</span><span class="special">,</span> <span class="identifier">State</span><span class="special">,</span> <span class="identifier">Data</span><span class="special">)</span><span class="special">></span> <span class="special">{</span>
<span class="comment">// types</span>
<span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">PrimitiveTransform</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">impl</span><span class="special"><</span> <span class="identifier">Expr</span><span class="special">,</span> <span class="identifier">State</span><span class="special">,</span> <span class="identifier">Data</span> <span class="special">></span><span class="special">::</span><span class="identifier">result_type</span> <a class="link" href="transform/result_This_E_idp207230560.html#boost.proto.transform.result_This(E_idp207230560.type"><span class="identifier">type</span></a><span class="special">;</span>
<span class="special">}</span><span class="special">;</span>
<span class="comment">// <a class="link" href="transform.html#idp207237264-bb">public member functions</a></span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <a class="link" href="../../Expr.html" title="Concept Expr">Expr</a><span class="special">></span>
<span class="keyword">typename</span> <span class="identifier">PrimitiveTransform</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">impl</span><span class="special"><</span><span class="identifier">Expr</span> <span class="special">&</span><span class="special">,</span> <em class="replaceable"><code><span class="identifier">unspecified</span></code></em><span class="special">,</span> <em class="replaceable"><code><span class="identifier">unspecified</span></code></em><span class="special">></span><span class="special">::</span><span class="identifier">result_type</span>
<a class="link" href="transform.html#idp207237824-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Expr</span> <span class="special">&</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <a class="link" href="../../Expr.html" title="Concept Expr">Expr</a><span class="special">,</span> <span class="keyword">typename</span> State<span class="special">></span>
<span class="keyword">typename</span> <span class="identifier">PrimitiveTransform</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">impl</span><span class="special"><</span><span class="identifier">Expr</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">State</span> <span class="special">&</span><span class="special">,</span> <em class="replaceable"><code><span class="identifier">unspecified</span></code></em><span class="special">></span><span class="special">::</span><span class="identifier">result_type</span>
<a class="link" href="transform.html#idp207245104-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Expr</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">State</span> <span class="special">&</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <a class="link" href="../../Expr.html" title="Concept Expr">Expr</a><span class="special">,</span> <span class="keyword">typename</span> State<span class="special">></span>
<span class="keyword">typename</span> <span class="identifier">PrimitiveTransform</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">impl</span><span class="special"><</span><span class="identifier">Expr</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <em class="replaceable"><code><span class="identifier">unspecified</span></code></em><span class="special">></span><span class="special">::</span><span class="identifier">result_type</span>
<a class="link" href="transform.html#idp207252800-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Expr</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <a class="link" href="../../Expr.html" title="Concept Expr">Expr</a><span class="special">,</span> <span class="keyword">typename</span> State<span class="special">,</span> <span class="keyword">typename</span> Data<span class="special">></span>
<span class="keyword">typename</span> <span class="identifier">PrimitiveTransform</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">impl</span><span class="special"><</span><span class="identifier">Expr</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">State</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">Data</span> <span class="special">&</span><span class="special">></span><span class="special">::</span><span class="identifier">result_type</span>
<a class="link" href="transform.html#idp207260496-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Expr</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">State</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">Data</span> <span class="special">&</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <a class="link" href="../../Expr.html" title="Concept Expr">Expr</a><span class="special">,</span> <span class="keyword">typename</span> State<span class="special">,</span> <span class="keyword">typename</span> Data<span class="special">></span>
<span class="keyword">typename</span> <span class="identifier">PrimitiveTransform</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">impl</span><span class="special"><</span><span class="identifier">Expr</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">Data</span> <span class="special">&</span><span class="special">></span><span class="special">::</span><span class="identifier">result_type</span>
<a class="link" href="transform.html#idp207268640-bb"><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span></a><span class="special">(</span><span class="identifier">Expr</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">Data</span> <span class="special">&</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span>
<span class="special">}</span><span class="special">;</span></pre></div>
<div class="refsect1">
<a name="idp390110592"></a><h2>Description</h2>
<div class="refsect2">
<a name="idp390111008"></a><h3>
<a name="idp207237264-bb"></a><code class="computeroutput">transform</code> public member functions</h3>
<div class="orderedlist"><ol class="orderedlist" type="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <a class="link" href="../../Expr.html" title="Concept Expr">Expr</a><span class="special">></span>
<span class="keyword">typename</span> <span class="identifier">PrimitiveTransform</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">impl</span><span class="special"><</span><span class="identifier">Expr</span> <span class="special">&</span><span class="special">,</span> <em class="replaceable"><code><span class="identifier">unspecified</span></code></em><span class="special">,</span> <em class="replaceable"><code><span class="identifier">unspecified</span></code></em><span class="special">></span><span class="special">::</span><span class="identifier">result_type</span>
<a name="idp207237824-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Expr</span> <span class="special">&</span> expr<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<div class="variablelist"><table border="0" class="variablelist compact">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term">Returns:</span></p></td>
<td><code class="computeroutput">
typename PrimitiveTransform::template impl<Expr &, <em class="replaceable"><code>unspecified</code></em>, <em class="replaceable"><code>unspecified</code></em>>()(expr, <em class="replaceable"><code>unspecified</code></em>, <em class="replaceable"><code>unspecified</code></em>)
</code></td>
</tr></tbody>
</table></div>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <a class="link" href="../../Expr.html" title="Concept Expr">Expr</a><span class="special">,</span> <span class="keyword">typename</span> State<span class="special">></span>
<span class="keyword">typename</span> <span class="identifier">PrimitiveTransform</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">impl</span><span class="special"><</span><span class="identifier">Expr</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">State</span> <span class="special">&</span><span class="special">,</span> <em class="replaceable"><code><span class="identifier">unspecified</span></code></em><span class="special">></span><span class="special">::</span><span class="identifier">result_type</span>
<a name="idp207245104-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Expr</span> <span class="special">&</span> expr<span class="special">,</span> <span class="identifier">State</span> <span class="special">&</span> state<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<div class="variablelist"><table border="0" class="variablelist compact">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term">Returns:</span></p></td>
<td><code class="computeroutput">
typename PrimitiveTransform::template impl<Expr &, State &, <em class="replaceable"><code>unspecified</code></em>>()(expr, state, <em class="replaceable"><code>unspecified</code></em>)
</code></td>
</tr></tbody>
</table></div>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <a class="link" href="../../Expr.html" title="Concept Expr">Expr</a><span class="special">,</span> <span class="keyword">typename</span> State<span class="special">></span>
<span class="keyword">typename</span> <span class="identifier">PrimitiveTransform</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">impl</span><span class="special"><</span><span class="identifier">Expr</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <em class="replaceable"><code><span class="identifier">unspecified</span></code></em><span class="special">></span><span class="special">::</span><span class="identifier">result_type</span>
<a name="idp207252800-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Expr</span> <span class="special">&</span> expr<span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&</span> state<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<div class="variablelist"><table border="0" class="variablelist compact">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term">Returns:</span></p></td>
<td><code class="computeroutput">
typename PrimitiveTransform::template impl<Expr &, State const &, <em class="replaceable"><code>unspecified</code></em>>()(expr, state, <em class="replaceable"><code>unspecified</code></em>)
</code></td>
</tr></tbody>
</table></div>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <a class="link" href="../../Expr.html" title="Concept Expr">Expr</a><span class="special">,</span> <span class="keyword">typename</span> State<span class="special">,</span> <span class="keyword">typename</span> Data<span class="special">></span>
<span class="keyword">typename</span> <span class="identifier">PrimitiveTransform</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">impl</span><span class="special"><</span><span class="identifier">Expr</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">State</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">Data</span> <span class="special">&</span><span class="special">></span><span class="special">::</span><span class="identifier">result_type</span>
<a name="idp207260496-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Expr</span> <span class="special">&</span> expr<span class="special">,</span> <span class="identifier">State</span> <span class="special">&</span> state<span class="special">,</span> <span class="identifier">Data</span> <span class="special">&</span> data<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<div class="variablelist"><table border="0" class="variablelist compact">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term">Returns:</span></p></td>
<td><code class="computeroutput">
typename PrimitiveTransform::template impl<Expr &, State &, Data &>()(expr, state, data)
</code></td>
</tr></tbody>
</table></div>
</li>
<li class="listitem">
<pre class="literallayout"><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> <a class="link" href="../../Expr.html" title="Concept Expr">Expr</a><span class="special">,</span> <span class="keyword">typename</span> State<span class="special">,</span> <span class="keyword">typename</span> Data<span class="special">></span>
<span class="keyword">typename</span> <span class="identifier">PrimitiveTransform</span><span class="special">::</span><span class="keyword">template</span> <span class="identifier">impl</span><span class="special"><</span><span class="identifier">Expr</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&</span><span class="special">,</span> <span class="identifier">Data</span> <span class="special">&</span><span class="special">></span><span class="special">::</span><span class="identifier">result_type</span>
<a name="idp207268640-bb"></a><span class="keyword">operator</span><span class="special">(</span><span class="special">)</span><span class="special">(</span><span class="identifier">Expr</span> <span class="special">&</span> expr<span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&</span> state<span class="special">,</span> <span class="identifier">Data</span> <span class="special">&</span> data<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>
<div class="variablelist"><table border="0" class="variablelist compact">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody><tr>
<td><p><span class="term">Returns:</span></p></td>
<td><code class="computeroutput">
typename PrimitiveTransform::template impl<Expr &, State const &, Data &>()(expr, state, data)
</code></td>
</tr></tbody>
</table></div>
</li>
</ol></div>
</div>
</div>
</div>
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