1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Class template buffer_allocator</title> 5<link rel="stylesheet" href="../../../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../index.html" title="Chapter 1. Boost.Compute"> 8<link rel="up" href="../../boost_compute/reference.html#header.boost.compute.allocator.buffer_allocator_hpp" title="Header <boost/compute/allocator/buffer_allocator.hpp>"> 9<link rel="prev" href="upper_bound.html" title="Function template upper_bound"> 10<link rel="next" href="pinned_allocator.html" title="Class template pinned_allocator"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../boost.png"></td> 15<td align="center"><a href="../../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="upper_bound.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_compute/reference.html#header.boost.compute.allocator.buffer_allocator_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="pinned_allocator.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="refentry"> 26<a name="boost.compute.buffer_allocator"></a><div class="titlepage"></div> 27<div class="refnamediv"> 28<h2><span class="refentrytitle">Class template buffer_allocator</span></h2> 29<p>boost::compute::buffer_allocator — The <a class="link" href="buffer_allocator.html" title="Class template buffer_allocator">buffer_allocator</a> class allocates memory with buffer objects. </p> 30</div> 31<h2 xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="refsynopsisdiv-title">Synopsis</h2> 32<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_compute/reference.html#header.boost.compute.allocator.buffer_allocator_hpp" title="Header <boost/compute/allocator/buffer_allocator.hpp>">boost/compute/allocator/buffer_allocator.hpp</a>> 33 34</span><span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> T<span class="special">></span> 35<span class="keyword">class</span> <a class="link" href="buffer_allocator.html" title="Class template buffer_allocator">buffer_allocator</a> <span class="special">{</span> 36<span class="keyword">public</span><span class="special">:</span> 37 <span class="comment">// types</span> 38 <span class="keyword">typedef</span> <span class="identifier">T</span> <a name="boost.compute.buffer_allocator.value_type"></a><span class="identifier">value_type</span><span class="special">;</span> 39 <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="boost.compute.buffer_allocator.pointer"></a><span class="identifier">pointer</span><span class="special">;</span> 40 <span class="keyword">typedef</span> <span class="emphasis"><em><span class="identifier">unspecified</span></em></span> <a name="boost.compute.buffer_allocator.const_pointer"></a><span class="identifier">const_pointer</span><span class="special">;</span> 41 <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <a name="boost.compute.buffer_allocator.size_type"></a><span class="identifier">size_type</span><span class="special">;</span> 42 <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">ptrdiff_t</span> <a name="boost.compute.buffer_allocator.difference_type"></a><span class="identifier">difference_type</span><span class="special">;</span> 43 44 <span class="comment">// <a class="link" href="buffer_allocator.html#boost.compute.buffer_allocatorconstruct-copy-destruct">construct/copy/destruct</a></span> 45 <span class="keyword">explicit</span> <a class="link" href="buffer_allocator.html#idm45549386403504-bb"><span class="identifier">buffer_allocator</span></a><span class="special">(</span><span class="keyword">const</span> <span class="identifier">context</span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 46 <a class="link" href="buffer_allocator.html#idm45549386402256-bb"><span class="identifier">buffer_allocator</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="buffer_allocator.html" title="Class template buffer_allocator">buffer_allocator</a><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 47 <a class="link" href="buffer_allocator.html#idm45549386398832-bb"><span class="identifier">buffer_allocator</span></a><span class="special">(</span><a class="link" href="buffer_allocator.html" title="Class template buffer_allocator">buffer_allocator</a><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <span class="special">&&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span> 48 <a class="link" href="buffer_allocator.html" title="Class template buffer_allocator">buffer_allocator</a><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <span class="special">&</span> <a class="link" href="buffer_allocator.html#idm45549386400832-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><span class="keyword">const</span> <a class="link" href="buffer_allocator.html" title="Class template buffer_allocator">buffer_allocator</a><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <span class="special">&</span><span class="special">)</span><span class="special">;</span> 49 <a class="link" href="buffer_allocator.html" title="Class template buffer_allocator">buffer_allocator</a><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <span class="special">&</span> <a class="link" href="buffer_allocator.html#idm45549386397296-bb"><span class="keyword">operator</span><span class="special">=</span></a><span class="special">(</span><a class="link" href="buffer_allocator.html" title="Class template buffer_allocator">buffer_allocator</a><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <span class="special">&&</span><span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span> 50 <a class="link" href="buffer_allocator.html#idm45549386395184-bb"><span class="special">~</span><span class="identifier">buffer_allocator</span></a><span class="special">(</span><span class="special">)</span><span class="special">;</span> 51 52 <span class="comment">// <a class="link" href="buffer_allocator.html#idm45549386410224-bb">public member functions</a></span> 53 <span class="identifier">pointer</span> <a class="link" href="buffer_allocator.html#idm45549386409664-bb"><span class="identifier">allocate</span></a><span class="special">(</span><span class="identifier">size_type</span><span class="special">)</span><span class="special">;</span> 54 <span class="keyword">void</span> <a class="link" href="buffer_allocator.html#idm45549386408128-bb"><span class="identifier">deallocate</span></a><span class="special">(</span><span class="identifier">pointer</span><span class="special">,</span> <span class="identifier">size_type</span><span class="special">)</span><span class="special">;</span> 55 <span class="identifier">size_type</span> <a class="link" href="buffer_allocator.html#idm45549386405904-bb"><span class="identifier">max_size</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 56 <span class="identifier">context</span> <a class="link" href="buffer_allocator.html#idm45549386404784-bb"><span class="identifier">get_context</span></a><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span> 57 58 <span class="comment">// <a class="link" href="buffer_allocator.html#idm45549386394896-bb">protected member functions</a></span> 59 <span class="keyword">void</span> <a class="link" href="buffer_allocator.html#idm45549386394320-bb"><span class="identifier">set_mem_flags</span></a><span class="special">(</span><span class="identifier">cl_mem_flags</span><span class="special">)</span><span class="special">;</span> 60<span class="special">}</span><span class="special">;</span></pre></div> 61<div class="refsect1"> 62<a name="idm45849517728752"></a><h2>Description</h2> 63<p><span class="bold"><strong>See Also:</strong></span></p> 64<p>buffer </p> 65<p> 66</p> 67<p> 68</p> 69<div class="refsect2"> 70<a name="idm45849517726976"></a><h3> 71<a name="boost.compute.buffer_allocatorconstruct-copy-destruct"></a><code class="computeroutput">buffer_allocator</code> 72 public 73 construct/copy/destruct</h3> 74<div class="orderedlist"><ol class="orderedlist" type="1"> 75<li class="listitem"><pre class="literallayout"><span class="keyword">explicit</span> <a name="idm45549386403504-bb"></a><span class="identifier">buffer_allocator</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">context</span> <span class="special">&</span> context<span class="special">)</span><span class="special">;</span></pre></li> 76<li class="listitem"><pre class="literallayout"><a name="idm45549386402256-bb"></a><span class="identifier">buffer_allocator</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="buffer_allocator.html" title="Class template buffer_allocator">buffer_allocator</a><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <span class="special">&</span> other<span class="special">)</span><span class="special">;</span></pre></li> 77<li class="listitem"><pre class="literallayout"><a name="idm45549386398832-bb"></a><span class="identifier">buffer_allocator</span><span class="special">(</span><a class="link" href="buffer_allocator.html" title="Class template buffer_allocator">buffer_allocator</a><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <span class="special">&&</span> other<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li> 78<li class="listitem"><pre class="literallayout"><a class="link" href="buffer_allocator.html" title="Class template buffer_allocator">buffer_allocator</a><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <span class="special">&</span> <a name="idm45549386400832-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="buffer_allocator.html" title="Class template buffer_allocator">buffer_allocator</a><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <span class="special">&</span> other<span class="special">)</span><span class="special">;</span></pre></li> 79<li class="listitem"><pre class="literallayout"><a class="link" href="buffer_allocator.html" title="Class template buffer_allocator">buffer_allocator</a><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <span class="special">&</span> <a name="idm45549386397296-bb"></a><span class="keyword">operator</span><span class="special">=</span><span class="special">(</span><a class="link" href="buffer_allocator.html" title="Class template buffer_allocator">buffer_allocator</a><span class="special"><</span> <span class="identifier">T</span> <span class="special">></span> <span class="special">&&</span> other<span class="special">)</span> <span class="keyword">noexcept</span><span class="special">;</span></pre></li> 80<li class="listitem"><pre class="literallayout"><a name="idm45549386395184-bb"></a><span class="special">~</span><span class="identifier">buffer_allocator</span><span class="special">(</span><span class="special">)</span><span class="special">;</span></pre></li> 81</ol></div> 82</div> 83<div class="refsect2"> 84<a name="idm45849517675232"></a><h3> 85<a name="idm45549386410224-bb"></a><code class="computeroutput">buffer_allocator</code> public member functions</h3> 86<div class="orderedlist"><ol class="orderedlist" type="1"> 87<li class="listitem"><pre class="literallayout"><span class="identifier">pointer</span> <a name="idm45549386409664-bb"></a><span class="identifier">allocate</span><span class="special">(</span><span class="identifier">size_type</span> n<span class="special">)</span><span class="special">;</span></pre></li> 88<li class="listitem"><pre class="literallayout"><span class="keyword">void</span> <a name="idm45549386408128-bb"></a><span class="identifier">deallocate</span><span class="special">(</span><span class="identifier">pointer</span> p<span class="special">,</span> <span class="identifier">size_type</span> n<span class="special">)</span><span class="special">;</span></pre></li> 89<li class="listitem"><pre class="literallayout"><span class="identifier">size_type</span> <a name="idm45549386405904-bb"></a><span class="identifier">max_size</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li> 90<li class="listitem"><pre class="literallayout"><span class="identifier">context</span> <a name="idm45549386404784-bb"></a><span class="identifier">get_context</span><span class="special">(</span><span class="special">)</span> <span class="keyword">const</span><span class="special">;</span></pre></li> 91</ol></div> 92</div> 93<div class="refsect2"> 94<a name="idm45849517651808"></a><h3> 95<a name="idm45549386394896-bb"></a><code class="computeroutput">buffer_allocator</code> protected member functions</h3> 96<div class="orderedlist"><ol class="orderedlist" type="1"><li class="listitem"><pre class="literallayout"><span class="keyword">void</span> <a name="idm45549386394320-bb"></a><span class="identifier">set_mem_flags</span><span class="special">(</span><span class="identifier">cl_mem_flags</span> flags<span class="special">)</span><span class="special">;</span></pre></li></ol></div> 97</div> 98</div> 99</div> 100<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 101<td align="left"></td> 102<td align="right"><div class="copyright-footer">Copyright © 2013, 2014 Kyle Lutz<p> 103 Distributed under the Boost Software License, Version 1.0. (See accompanying 104 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>) 105 </p> 106</div></td> 107</tr></table> 108<hr> 109<div class="spirit-nav"> 110<a accesskey="p" href="upper_bound.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../../boost_compute/reference.html#header.boost.compute.allocator.buffer_allocator_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="pinned_allocator.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 111</div> 112</body> 113</html> 114
