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<html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>Struct template transform</title> <link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css"> <meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> <link rel="home" href="../../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset"> <link rel="up" href="../../proto/reference.html#header.boost.proto.transform.impl_hpp" title="Header &lt;boost/proto/transform/impl.hpp&gt;"> <link rel="prev" href="reverse_fold_tree/impl.html" title="Struct template impl"> <link rel="next" href="transform/result_This_E_idp207219872.html" title="Struct template result&lt;This(Expr)&gt;"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table cellpadding="2" width="100%"><tr> <td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../boost.png"></td> <td align="center"><a 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class="refnamediv"> <h2><span class="refentrytitle">Struct template transform</span></h2> <p>boost::proto::transform &#8212; 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: &lt;<a class="link" href="../../proto/reference.html#header.boost.proto.transform.impl_hpp" title="Header &lt;boost/proto/transform/impl.hpp&gt;">boost/proto/transform/impl.hpp</a>&gt; </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <a class="link" href="../../PrimitiveTransform.html" title="Concept PrimitiveTransform">PrimitiveTransform</a><span class="special">&gt;</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">&lt;</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">&gt;</span> <span class="keyword">struct</span> <a class="link" href="transform/result_This_E_idp207219872.html" title="Struct template result&lt;This(Expr)&gt;">result</a><span class="special">&lt;</span><span class="identifier">This</span><span class="special">(</span><span class="identifier">Expr</span><span class="special">)</span><span class="special">&gt;</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">&lt;</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">&gt;</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">&lt;</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">&gt;</span> <span class="keyword">struct</span> <a class="link" href="transform/result_This_E_idp207225152.html" title="Struct template result&lt;This(Expr, State)&gt;">result</a><span class="special">&lt;</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">&gt;</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">&lt;</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">&gt;</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">&lt;</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">&gt;</span> <span class="keyword">struct</span> <a class="link" href="transform/result_This_E_idp207230560.html" title="Struct template result&lt;This(Expr, State, Data)&gt;">result</a><span class="special">&lt;</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">&gt;</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">&lt;</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">&gt;</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">&lt;</span><span class="keyword">typename</span> <a class="link" href="../../Expr.html" title="Concept Expr">Expr</a><span class="special">&gt;</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">&lt;</span><span class="identifier">Expr</span> <span class="special">&amp;</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">&gt;</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">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> <span class="keyword">template</span><span class="special">&lt;</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">&gt;</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">&lt;</span><span class="identifier">Expr</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">State</span> <span class="special">&amp;</span><span class="special">,</span> <em class="replaceable"><code><span class="identifier">unspecified</span></code></em><span class="special">&gt;</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">&amp;</span><span class="special">,</span> <span class="identifier">State</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> <span class="keyword">template</span><span class="special">&lt;</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">&gt;</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">&lt;</span><span class="identifier">Expr</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <em class="replaceable"><code><span class="identifier">unspecified</span></code></em><span class="special">&gt;</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">&amp;</span><span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> <span class="keyword">template</span><span class="special">&lt;</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">&gt;</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">&lt;</span><span class="identifier">Expr</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">State</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Data</span> <span class="special">&amp;</span><span class="special">&gt;</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">&amp;</span><span class="special">,</span> <span class="identifier">State</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Data</span> <span class="special">&amp;</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> <span class="keyword">template</span><span class="special">&lt;</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">&gt;</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">&lt;</span><span class="identifier">Expr</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Data</span> <span class="special">&amp;</span><span class="special">&gt;</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">&amp;</span><span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Data</span> <span class="special">&amp;</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">&lt;</span><span class="keyword">typename</span> <a class="link" href="../../Expr.html" title="Concept Expr">Expr</a><span class="special">&gt;</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">&lt;</span><span class="identifier">Expr</span> <span class="special">&amp;</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">&gt;</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">&amp;</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&lt;Expr &amp;, <em class="replaceable"><code>unspecified</code></em>, <em class="replaceable"><code>unspecified</code></em>&gt;()(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">&lt;</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">&gt;</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">&lt;</span><span class="identifier">Expr</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">State</span> <span class="special">&amp;</span><span class="special">,</span> <em class="replaceable"><code><span class="identifier">unspecified</span></code></em><span class="special">&gt;</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">&amp;</span> expr<span class="special">,</span> <span class="identifier">State</span> <span class="special">&amp;</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&lt;Expr &amp;, State &amp;, <em class="replaceable"><code>unspecified</code></em>&gt;()(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">&lt;</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">&gt;</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">&lt;</span><span class="identifier">Expr</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <em class="replaceable"><code><span class="identifier">unspecified</span></code></em><span class="special">&gt;</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">&amp;</span> expr<span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&amp;</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&lt;Expr &amp;, State const &amp;, <em class="replaceable"><code>unspecified</code></em>&gt;()(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">&lt;</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">&gt;</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">&lt;</span><span class="identifier">Expr</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">State</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Data</span> <span class="special">&amp;</span><span class="special">&gt;</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">&amp;</span> expr<span class="special">,</span> <span class="identifier">State</span> <span class="special">&amp;</span> state<span class="special">,</span> <span class="identifier">Data</span> <span class="special">&amp;</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&lt;Expr &amp;, State &amp;, Data &amp;&gt;()(expr, state, data) </code></td> </tr></tbody> </table></div> </li> <li class="listitem"> <pre class="literallayout"><span class="keyword">template</span><span class="special">&lt;</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">&gt;</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">&lt;</span><span class="identifier">Expr</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&amp;</span><span class="special">,</span> <span class="identifier">Data</span> <span class="special">&amp;</span><span class="special">&gt;</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">&amp;</span> expr<span class="special">,</span> <span class="identifier">State</span> <span class="keyword">const</span> <span class="special">&amp;</span> state<span class="special">,</span> <span class="identifier">Data</span> <span class="special">&amp;</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&lt;Expr &amp;, State const &amp;, Data &amp;&gt;()(expr, state, data) </code></td> </tr></tbody> </table></div> </li> </ol></div> </div> </div> </div> <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> <td align="left"></td> <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>) </p> </div></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="reverse_fold_tree/impl.html"><img src="../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../proto/reference.html#header.boost.proto.transform.impl_hpp"><img src="../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="transform/result_This_E_idp207219872.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> </div> </body> </html>