<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>Class template resource_adaptor_imp</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="../../../boost_container_header_reference.html#header.boost.container.pmr.resource_adaptor_hpp" title="Header <boost/container/pmr/resource_adaptor.hpp>"> <link rel="prev" href="pool_options.html" title="Struct pool_options"> <link rel="next" href="resource_adaptor.html" title="Type definition resource_adaptor"> </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 href="../../../../../index.html">Home</a></td> <td align="center"><a href="../../../../../libs/libraries.htm">Libraries</a></td> <td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> <td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> <td align="center"><a href="../../../../../more/index.htm">More</a></td> </tr></table> <hr> <div class="spirit-nav"> <a accesskey="p" href="pool_options.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../boost_container_header_reference.html#header.boost.container.pmr.resource_adaptor_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="resource_adaptor.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a> </div> <div class="refentry"> <a name="boost.container.pmr.resource_adaptor_imp"></a><div class="titlepage"></div> <div class="refnamediv"> <h2><span class="refentrytitle">Class template resource_adaptor_imp</span></h2> <p>boost::container::pmr::resource_adaptor_imp</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="../../../boost_container_header_reference.html#header.boost.container.pmr.resource_adaptor_hpp" title="Header <boost/container/pmr/resource_adaptor.hpp>">boost/container/pmr/resource_adaptor.hpp</a>> </span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> Allocator<span class="special">></span> <span class="keyword">class</span> <a class="link" href="resource_adaptor_imp.html" title="Class template resource_adaptor_imp">resource_adaptor_imp</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">container</span><span class="special">::</span><span class="identifier">pmr</span><span class="special">::</span><span class="identifier">memory_resource</span> <span class="special">{</span> <span class="keyword">public</span><span class="special">:</span> <span class="comment">// types</span> <span class="keyword">typedef</span> <span class="identifier">Allocator</span> <a name="boost.container.pmr.resource_adaptor_imp.allocator_type"></a><span class="identifier">allocator_type</span><span class="special">;</span> <span class="comment">// <a class="link" href="resource_adaptor_imp.html#boost.container.pmr.resource_adaptor_impconstruct-copy-destruct">construct/copy/destruct</a></span> <a class="link" href="resource_adaptor_imp.html#idm46583871448800-bb"><span class="identifier">resource_adaptor_imp</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> <a class="link" href="resource_adaptor_imp.html#idm46583871447520-bb"><span class="identifier">resource_adaptor_imp</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="resource_adaptor_imp.html" title="Class template resource_adaptor_imp">resource_adaptor_imp</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span> <a class="link" href="resource_adaptor_imp.html#idm46583871445104-bb"><span class="identifier">resource_adaptor_imp</span></a><span class="special">(</span><a class="link" href="resource_adaptor_imp.html" title="Class template resource_adaptor_imp">resource_adaptor_imp</a> <span class="special">&&</span><span class="special">)</span><span class="special">;</span> <span class="keyword">explicit</span> <a class="link" href="resource_adaptor_imp.html#idm46583871442848-bb"><span class="identifier">resource_adaptor_imp</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> <span class="keyword">explicit</span> <a class="link" href="resource_adaptor_imp.html#idm46583871440608-bb"><span class="identifier">resource_adaptor_imp</span></a><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&&</span><span class="special">)</span><span class="special">;</span> <a class="link" href="resource_adaptor_imp.html" title="Class template resource_adaptor_imp">resource_adaptor_imp</a> <span class="special">&</span> <a class="link" href="resource_adaptor_imp.html#idm46583871438368-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="resource_adaptor_imp.html" title="Class template resource_adaptor_imp">resource_adaptor_imp</a> <span class="special">&</span><span class="special">)</span><span class="special">;</span> <a class="link" href="resource_adaptor_imp.html" title="Class template resource_adaptor_imp">resource_adaptor_imp</a> <span class="special">&</span> <a class="link" href="resource_adaptor_imp.html#idm46583871435376-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><a class="link" href="resource_adaptor_imp.html" title="Class template resource_adaptor_imp">resource_adaptor_imp</a> <span class="special">&&</span><span class="special">)</span><span class="special">;</span> <span class="comment">// <a class="link" href="resource_adaptor_imp.html#idm46583871453184-bb">public member functions</a></span> <span class="identifier">allocator_type</span> <span class="special">&</span> <a class="link" href="resource_adaptor_imp.html#idm46583871452624-bb"><span class="identifier">get_allocator</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> <span class="keyword">const</span> <span class="identifier">allocator_type</span> <span class="special">&</span> <a class="link" href="resource_adaptor_imp.html#idm46583871450928-bb"><span class="identifier">get_allocator</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> <span class="comment">// <a class="link" href="resource_adaptor_imp.html#idm46583871432544-bb">protected member functions</a></span> <span class="keyword">virtual</span> <span class="keyword">void</span> <span class="special">*</span> <a class="link" href="resource_adaptor_imp.html#idm46583871431968-bb"><span class="identifier">do_allocate</span></a><span class="special">(</span><span class="identifier">size_t</span><span class="special">,</span> <span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span> <span class="keyword">virtual</span> <span class="keyword">void</span> <a class="link" href="resource_adaptor_imp.html#idm46583871427616-bb"><span class="identifier">do_deallocate</span></a><span class="special">(</span><span class="keyword">void</span> <span class="special">*</span><span class="special">,</span> <span class="identifier">size_t</span><span class="special">,</span> <span class="identifier">size_t</span><span class="special">)</span><span class="special">;</span> <span class="keyword">virtual</span> <span class="keyword">bool</span> <a class="link" href="resource_adaptor_imp.html#idm46583871422480-bb"><span class="identifier">do_is_equal</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="memory_resource.html" title="Class memory_resource">memory_resource</a> <span class="special">&</span><span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span> <span class="special">}</span><span class="special">;</span></pre></div> <div class="refsect1"> <a name="idm45555398459024"></a><h2>Description</h2> <p>An instance of resource_adaptor<Allocator> is an adaptor that wraps a <a class="link" href="memory_resource.html" title="Class memory_resource">memory_resource</a> interface around Allocator. In order that resource_adaptor<X<T>> and resource_adaptor<X<U>> are the same type for any allocator template X and types T and U, resource_adaptor<Allocator> is rendered as an alias to this class template such that Allocator is rebound to a char value type in every specialization of the class template. The requirements on this class template are defined below. In addition to the Allocator requirements, the parameter to resource_adaptor shall meet the following additional requirements:</p> <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> <li class="listitem"><p><code class="computeroutput">typename <a class="link" href="../allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><Allocator>:: pointer</code> shall be identical to <code class="computeroutput">typename <a class="link" href="../allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><Allocator>:: value_type*</code>.</p></li> <li class="listitem"><p><code class="computeroutput">typename <a class="link" href="../allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><Allocator>:: const_pointer</code> shall be identical to <code class="computeroutput">typename <a class="link" href="../allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><Allocator>:: value_type const*</code>.</p></li> <li class="listitem"><p><code class="computeroutput">typename <a class="link" href="../allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><Allocator>:: void_pointer</code> shall be identical to <code class="computeroutput">void*</code>.</p></li> <li class="listitem"><p><code class="computeroutput">typename <a class="link" href="../allocator_traits.html" title="Struct template allocator_traits">allocator_traits</a><Allocator>:: const_void_pointer</code> shall be identical to <code class="computeroutput">void const*</code>. </p></li> </ul></div> <p> </p> <div class="refsect2"> <a name="idm45555398443152"></a><h3> <a name="boost.container.pmr.resource_adaptor_impconstruct-copy-destruct"></a><code class="computeroutput">resource_adaptor_imp</code> public construct/copy/destruct</h3> <div class="orderedlist"><ol class="orderedlist" type="1"> <li class="listitem"> <pre class="literallayout"><a name="idm46583871448800-bb"></a><span class="identifier">resource_adaptor_imp</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> <p><span class="bold"><strong>Effects</strong></span>: Default constructs m_alloc. </p> </li> <li class="listitem"> <pre class="literallayout"><a name="idm46583871447520-bb"></a><span class="identifier">resource_adaptor_imp</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="resource_adaptor_imp.html" title="Class template resource_adaptor_imp">resource_adaptor_imp</a> <span class="special">&</span> other<span class="special">)</span><span class="special">;</span></pre> <p><span class="bold"><strong>Effects</strong></span>: Copy constructs m_alloc. </p> </li> <li class="listitem"> <pre class="literallayout"><a name="idm46583871445104-bb"></a><span class="identifier">resource_adaptor_imp</span><span class="special">(</span><a class="link" href="resource_adaptor_imp.html" title="Class template resource_adaptor_imp">resource_adaptor_imp</a> <span class="special">&&</span> other<span class="special">)</span><span class="special">;</span></pre> <p><span class="bold"><strong>Effects</strong></span>: Move constructs m_alloc. </p> </li> <li class="listitem"> <pre class="literallayout"><span class="keyword">explicit</span> <a name="idm46583871442848-bb"></a><span class="identifier">resource_adaptor_imp</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">Allocator</span> <span class="special">&</span> a2<span class="special">)</span><span class="special">;</span></pre> <p><span class="bold"><strong>Effects</strong></span>: Initializes m_alloc with a2. </p> </li> <li class="listitem"> <pre class="literallayout"><span class="keyword">explicit</span> <a name="idm46583871440608-bb"></a><span class="identifier">resource_adaptor_imp</span><span class="special">(</span><span class="identifier">Allocator</span> <span class="special">&&</span> a2<span class="special">)</span><span class="special">;</span></pre> <p><span class="bold"><strong>Effects</strong></span>: Initializes m_alloc with a2. </p> </li> <li class="listitem"> <pre class="literallayout"><a class="link" href="resource_adaptor_imp.html" title="Class template resource_adaptor_imp">resource_adaptor_imp</a> <span class="special">&</span> <a name="idm46583871438368-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="resource_adaptor_imp.html" title="Class template resource_adaptor_imp">resource_adaptor_imp</a> <span class="special">&</span> other<span class="special">)</span><span class="special">;</span></pre> <p><span class="bold"><strong>Effects</strong></span>: Copy assigns m_alloc. </p> </li> <li class="listitem"> <pre class="literallayout"><a class="link" href="resource_adaptor_imp.html" title="Class template resource_adaptor_imp">resource_adaptor_imp</a> <span class="special">&</span> <a name="idm46583871435376-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><a class="link" href="resource_adaptor_imp.html" title="Class template resource_adaptor_imp">resource_adaptor_imp</a> <span class="special">&&</span> other<span class="special">)</span><span class="special">;</span></pre> <p><span class="bold"><strong>Effects</strong></span>: Move assigns m_alloc. </p> </li> </ol></div> </div> <div class="refsect2"> <a name="idm45555398392832"></a><h3> <a name="idm46583871453184-bb"></a><code class="computeroutput">resource_adaptor_imp</code> public member functions</h3> <div class="orderedlist"><ol class="orderedlist" type="1"> <li class="listitem"> <pre class="literallayout"><span class="identifier">allocator_type</span> <span class="special">&</span> <a name="idm46583871452624-bb"></a><span class="identifier">get_allocator</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre> <span class="bold"><strong>Effects</strong></span>: Returns m_alloc. </li> <li class="listitem"> <pre class="literallayout"><span class="keyword">const</span> <span class="identifier">allocator_type</span> <span class="special">&</span> <a name="idm46583871450928-bb"></a><span class="identifier">get_allocator</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre> <span class="bold"><strong>Effects</strong></span>: Returns m_alloc. </li> </ol></div> </div> <div class="refsect2"> <a name="idm45555398377904"></a><h3> <a name="idm46583871432544-bb"></a><code class="computeroutput">resource_adaptor_imp</code> protected member functions</h3> <div class="orderedlist"><ol class="orderedlist" type="1"> <li class="listitem"> <pre class="literallayout"><span class="keyword">virtual</span> <span class="keyword">void</span> <span class="special">*</span> <a name="idm46583871431968-bb"></a><span class="identifier">do_allocate</span><span class="special">(</span><span class="identifier">size_t</span> bytes<span class="special">,</span> <span class="identifier">size_t</span> alignment<span class="special">)</span><span class="special">;</span></pre> <p><span class="bold"><strong>Returns</strong></span>: Allocated memory obtained by calling m_alloc.allocate. The size and alignment of the allocated memory shall meet the requirements for a class derived from <code class="computeroutput"><a class="link" href="memory_resource.html" title="Class memory_resource">memory_resource</a></code>. </p> </li> <li class="listitem"> <pre class="literallayout"><span class="keyword">virtual</span> <span class="keyword">void</span> <a name="idm46583871427616-bb"></a><span class="identifier">do_deallocate</span><span class="special">(</span><span class="keyword">void</span> <span class="special">*</span> p<span class="special">,</span> <span class="identifier">size_t</span> bytes<span class="special">,</span> <span class="identifier">size_t</span> alignment<span class="special">)</span><span class="special">;</span></pre> <p><span class="bold"><strong>Requires</strong></span>: p was previously allocated using A.allocate, where A == m_alloc, and not subsequently deallocated.</p> <p><span class="bold"><strong>Effects</strong></span>: Returns memory to the allocator using m_alloc.deallocate(). </p> </li> <li class="listitem"> <pre class="literallayout"><span class="keyword">virtual</span> <span class="keyword">bool</span> <a name="idm46583871422480-bb"></a><span class="identifier">do_is_equal</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="memory_resource.html" title="Class memory_resource">memory_resource</a> <span class="special">&</span> other<span class="special">)</span> <span class="keyword">const</span> <span class="keyword">noexcept</span><span class="special">;</span></pre> <p>Let p be dynamic_cast<const resource_adaptor_imp*>(&other).</p> <p><span class="bold"><strong>Returns</strong></span>: false if p is null, otherwise the value of m_alloc == p->m_alloc. </p> </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 © 2009-2015 Ion Gaztanaga<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="pool_options.html"><img src="../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../../boost_container_header_reference.html#header.boost.container.pmr.resource_adaptor_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="resource_adaptor.html"><img src="../../../../../doc/src/images/next.png" alt="Next"></a> </div> </body> </html>