1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> 2<html> 3<head> 4<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 5<title>Struct template transform</title> 6<link rel="stylesheet" href="../../../../doc/src/boostbook.css" type="text/css"> 7<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 8<link rel="home" href="../../index.html" title="The Boost C++ Libraries BoostBook Documentation Subset"> 9<link rel="up" href="../../proto/reference.html#header.boost.proto.transform.impl_hpp" title="Header <boost/proto/transform/impl.hpp>"> 10<link rel="prev" href="reverse_fold_tree/impl.html" title="Struct template impl"> 11<link rel="next" href="transform/result_1_3_33_5_47_2_1_1_3.html" title="Struct template result<This(Expr)>"> 12</head> 13<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 14<table cellpadding="2" width="100%"><tr> 15<td valign="top"><img alt="Boost C++ 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25</div> 26<div class="refentry"> 27<a name="boost.proto.transform"></a><div class="titlepage"></div> 28<div class="refnamediv"> 29<h2><span class="refentrytitle">Struct template transform</span></h2> 30<p>boost::proto::transform — Inherit from this to make your type a <a class="link" href="../../PrimitiveTransform.html" title="Concept PrimitiveTransform">PrimitiveTransform</a>.</p> 31</div> 32<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> 33<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>> 34 35</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> 36<span class="keyword">struct</span> <a class="link" href="transform.html" title="Struct template transform">transform</a> <span class="special">{</span> 37 <span class="comment">// types</span> 38 <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> 39 40 <span class="comment">// member classes/structs/unions</span> 41 <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> 42 <span class="keyword">struct</span> <a class="link" href="transform/result_1_3_33_5_47_2_1_1_3.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> 43 <span class="comment">// types</span> 44 <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_1_3_33_5_47_2_1_1_3.html#boost.proto.transform.result_1_3_33_5_47_2_1_1_3.type"><span class="identifier">type</span></a><span class="special">;</span> 45 <span class="special">}</span><span class="special">;</span> 46 <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> 47 <span class="keyword">struct</span> <a class="link" href="transform/result_1_3_33_5_47_2_1_1_4.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> 48 <span class="comment">// types</span> 49 <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_1_3_33_5_47_2_1_1_4.html#boost.proto.transform.result_1_3_33_5_47_2_1_1_4.type"><span class="identifier">type</span></a><span class="special">;</span> 50 <span class="special">}</span><span class="special">;</span> 51 <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> 52 <span class="keyword">struct</span> <a class="link" href="transform/result_1_3_33_5_47_2_1_1_5.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> 53 <span class="comment">// types</span> 54 <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_1_3_33_5_47_2_1_1_5.html#boost.proto.transform.result_1_3_33_5_47_2_1_1_5.type"><span class="identifier">type</span></a><span class="special">;</span> 55 <span class="special">}</span><span class="special">;</span> 56 57 <span class="comment">// <a class="link" href="transform.html#id-1_3_33_5_47_2_1_1_7-bb">public member functions</a></span> 58 <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> 59 <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> 60 <a class="link" href="transform.html#id-1_3_33_5_47_2_1_1_7_1-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> 61 <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> 62 <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> 63 <a class="link" href="transform.html#id-1_3_33_5_47_2_1_1_7_2-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> 64 <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> 65 <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> 66 <a class="link" href="transform.html#id-1_3_33_5_47_2_1_1_7_3-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> 67 <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> 68 <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> 69 <a class="link" href="transform.html#id-1_3_33_5_47_2_1_1_7_4-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> 70 <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> 71 <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> 72 <a class="link" href="transform.html#id-1_3_33_5_47_2_1_1_7_5-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> 73<span class="special">}</span><span class="special">;</span></pre></div> 74<div class="refsect1"> 75<a name="id-1.3.33.5.49.4.4"></a><h2>Description</h2> 76<div class="refsect2"> 77<a name="id-1.3.33.5.49.4.4.2"></a><h3> 78<a name="id-1_3_33_5_47_2_1_1_7-bb"></a><code class="computeroutput">transform</code> public member functions</h3> 79<div class="orderedlist"><ol class="orderedlist" type="1"> 80<li class="listitem"> 81<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> 82 <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> 83 <a name="id-1_3_33_5_47_2_1_1_7_1-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> 84<div class="variablelist"><table border="0" class="variablelist compact"> 85<colgroup> 86<col align="left" valign="top"> 87<col> 88</colgroup> 89<tbody><tr> 90<td><p><span class="term">Returns:</span></p></td> 91<td><code class="computeroutput"> 92 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>) 93 </code></td> 94</tr></tbody> 95</table></div> 96</li> 97<li class="listitem"> 98<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> 99 <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> 100 <a name="id-1_3_33_5_47_2_1_1_7_2-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> 101<div class="variablelist"><table border="0" class="variablelist compact"> 102<colgroup> 103<col align="left" valign="top"> 104<col> 105</colgroup> 106<tbody><tr> 107<td><p><span class="term">Returns:</span></p></td> 108<td><code class="computeroutput"> 109 typename PrimitiveTransform::template impl<Expr &, State &, <em class="replaceable"><code>unspecified</code></em>>()(expr, state, <em class="replaceable"><code>unspecified</code></em>) 110 </code></td> 111</tr></tbody> 112</table></div> 113</li> 114<li class="listitem"> 115<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> 116 <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> 117 <a name="id-1_3_33_5_47_2_1_1_7_3-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> 118<div class="variablelist"><table border="0" class="variablelist compact"> 119<colgroup> 120<col align="left" valign="top"> 121<col> 122</colgroup> 123<tbody><tr> 124<td><p><span class="term">Returns:</span></p></td> 125<td><code class="computeroutput"> 126 typename PrimitiveTransform::template impl<Expr &, State const &, <em class="replaceable"><code>unspecified</code></em>>()(expr, state, <em class="replaceable"><code>unspecified</code></em>) 127 </code></td> 128</tr></tbody> 129</table></div> 130</li> 131<li class="listitem"> 132<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> 133 <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> 134 <a name="id-1_3_33_5_47_2_1_1_7_4-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> 135<div class="variablelist"><table border="0" class="variablelist compact"> 136<colgroup> 137<col align="left" valign="top"> 138<col> 139</colgroup> 140<tbody><tr> 141<td><p><span class="term">Returns:</span></p></td> 142<td><code class="computeroutput"> 143 typename PrimitiveTransform::template impl<Expr &, State &, Data &>()(expr, state, data) 144 </code></td> 145</tr></tbody> 146</table></div> 147</li> 148<li class="listitem"> 149<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> 150 <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> 151 <a name="id-1_3_33_5_47_2_1_1_7_5-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> 152<div class="variablelist"><table border="0" class="variablelist compact"> 153<colgroup> 154<col align="left" valign="top"> 155<col> 156</colgroup> 157<tbody><tr> 158<td><p><span class="term">Returns:</span></p></td> 159<td><code class="computeroutput"> 160 typename PrimitiveTransform::template impl<Expr &, State const &, Data &>()(expr, state, data) 161 </code></td> 162</tr></tbody> 163</table></div> 164</li> 165</ol></div> 166</div> 167</div> 168</div> 169<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 170<td align="left"></td> 171<td align="right"><div class="copyright-footer">Copyright © 2008 Eric Niebler<p> 172 Distributed under the Boost Software License, Version 1.0. (See accompanying 173 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>) 174 </p> 175</div></td> 176</tr></table> 177<hr> 178<div class="spirit-nav"> 179<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_1_3_33_5_47_2_1_1_3.html"><img src="../../../../doc/src/images/next.png" alt="Next"></a> 180</div> 181</body> 182</html> 183
