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26 <a name="boost.compute.is_device_iterator"></a><div class="titlepage"></div>
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28 <h2><span class="refentrytitle">Struct template is_device_iterator</span></h2>
29 <p>boost::compute::is_device_iterator</p>
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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: &lt;<a class="link" href="../../boost_compute/reference.html#header.boost.compute.type_traits.is_device_iterator_hpp" title="Header &lt;boost/compute/type_traits/is_device_iterator.hpp&gt;">boost/compute/type_traits/is_device_iterator.hpp</a>&gt;
33
34 </span><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> Iterator<span class="special">&gt;</span> 
35 <span class="keyword">struct</span> <a class="link" href="is_device_iterator.html" title="Struct template is_device_iterator">is_device_iterator</a> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">false_type</span> <span class="special">{</span>
36 <span class="special">}</span><span class="special">;</span></pre></div>
37 <div class="refsect1">
38 <a name="idm46113315972576"></a><h2>Description</h2>
39 <p>Meta-function returning <code class="computeroutput">true</code> if <code class="computeroutput">Iterator</code> is a device-iterator.</p>
40 <p>By default, this function returns false. Device iterator types (such as <a class="link" href="buffer_iterator.html" title="Class template buffer_iterator">buffer_iterator</a>) should specialize this trait and return <code class="computeroutput">true</code>.</p>
41 <p>For example: </p>
42 <pre class="programlisting"><span class="identifier">is_device_iterator</span><span class="special">&lt;</span><span class="identifier">buffer_iterator</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;&gt;</span><span class="special">::</span><span class="identifier">value</span> <span class="special">==</span> <span class="keyword">true</span>
43 <span class="identifier">is_device_iterator</span><span class="special">&lt;</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span><span class="keyword">int</span><span class="special">&gt;</span><span class="special">::</span><span class="identifier">iterator</span><span class="special">&gt;</span><span class="special">::</span><span class="identifier">value</span> <span class="special">==</span> <span class="keyword">false</span>
44 </pre>
45 <p> </p>
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