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| <a name="boost.proto.functional.deep_copy"></a><div class="titlepage"></div> |
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| <h2><span class="refentrytitle">Struct deep_copy</span></h2> |
| <p>boost::proto::functional::deep_copy — A <a class="link" href="../../../PolymorphicFunctionObject.html" title="Concept PolymorphicFunctionObject">PolymorphicFunctionObject</a> type for deep-copying Proto |
| expression trees.</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.deep_copy_hpp" title="Header <boost/proto/deep_copy.hpp>">boost/proto/deep_copy.hpp</a>> |
| |
| </span> |
| <span class="keyword">struct</span> <a class="link" href="deep_copy.html" title="Struct deep_copy">deep_copy</a> <span class="special">:</span> <span class="keyword"></span> <a class="link" href="../callable.html" title="Struct callable">proto::callable</a> <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="deep_copy/result_This_Expr__id1352745.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="keyword"></span> <a class="link" href="../result_of/deep_copy.html" title="Struct template deep_copy">result_of::deep_copy</a><Expr> <span class="special">{</span> |
| <span class="special">}</span><span class="special">;</span> |
| |
| <span class="comment">// <a class="link" href="deep_copy.html#id1352781-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> |
| <a class="link" href="../result_of/deep_copy.html" title="Struct template deep_copy">result_of::deep_copy</a><span class="special"><</span><span class="identifier">Expr</span><span class="special">></span><span class="special">::</span><span class="identifier">type</span> <a class="link" href="deep_copy.html#id1352786-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="keyword">const</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="id2409491"></a><h2>Description</h2> |
| <p> |
| A <a class="link" href="../../../PolymorphicFunctionObject.html" title="Concept PolymorphicFunctionObject">PolymorphicFunctionObject</a> type for deep-copying Proto expression trees. |
| When a tree is deep-copied, all internal nodes and terminals held by reference are instead held by value. |
| The only exception is function references, which continue to be held by reference. |
| </p> |
| <div class="refsect2"> |
| <a name="id2409508"></a><h3> |
| <a name="id1352781-bb"></a><code class="computeroutput">deep_copy</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> |
| <a class="link" href="../result_of/deep_copy.html" title="Struct template deep_copy">result_of::deep_copy</a><span class="special"><</span><span class="identifier">Expr</span><span class="special">></span><span class="special">::</span><span class="identifier">type</span> <a name="id1352786-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="keyword">const</span> <span class="special">&</span> expr<span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre>Deep-copies a Proto expression tree, turning all nodes and terminals held by |
| reference into ones held by value.</li></ol></div> |
| </div> |
| </div> |
| </div> |
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| <td align="left"></td> |
| <td align="right"><div class="copyright-footer">Copyright © 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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