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25 <div class="refentry">
26 <a name="boost.compute.unique"></a><div class="titlepage"></div>
27 <div class="refnamediv">
28 <h2><span class="refentrytitle">Function unique</span></h2>
29 <p>boost::compute::unique</p>
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.algorithm.unique_hpp" title="Header <boost/compute/algorithm/unique.hpp>">boost/compute/algorithm/unique.hpp</a>>
35 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> InputIterator<span class="special">,</span> <span class="keyword">typename</span> BinaryPredicate<span class="special">></span>
36 <span class="identifier">InputIterator</span>
37 <span class="identifier">unique</span><span class="special">(</span><span class="identifier">InputIterator</span> first<span class="special">,</span> <span class="identifier">InputIterator</span> last<span class="special">,</span> <span class="identifier">BinaryPredicate</span> op<span class="special">,</span>
38 <span class="identifier">command_queue</span> <span class="special">&</span> queue <span class="special">=</span> <span class="identifier">system</span><span class="special">::</span><span class="identifier">default_queue</span><span class="special">(</span><span class="special">)</span><span class="special">)</span><span class="special">;</span>
39 <span class="keyword">template</span><span class="special"><</span><span class="keyword">typename</span> InputIterator<span class="special">></span>
40 <span class="identifier">InputIterator</span>
41 <span class="identifier">unique</span><span class="special">(</span><span class="identifier">InputIterator</span> first<span class="special">,</span> <span class="identifier">InputIterator</span> last<span class="special">,</span>
42 <span class="identifier">command_queue</span> <span class="special">&</span> queue <span class="special">=</span> <span class="identifier">system</span><span class="special">::</span><span class="identifier">default_queue</span><span class="special">(</span><span class="special">)</span><span class="special">)</span><span class="special">;</span></pre></div>
43 <div class="refsect1">
44 <a name="idm46113329873792"></a><h2>Description</h2>
45 <p>Removes all consecutive duplicate elements (determined by <code class="computeroutput">op</code>) from the range [first, last). If <code class="computeroutput">op</code> is not provided, the equality operator is used.</p>
48 Space complexity: \Omega(4n)</p>
49 <p><span class="bold"><strong>See Also:</strong></span></p>
55 <div class="variablelist"><table border="0" class="variablelist compact">
57 <col align="left" valign="top">
62 <td><p><span class="term">Parameters:</span></p></td>
63 <td><div class="variablelist"><table border="0" class="variablelist compact">
65 <col align="left" valign="top">
70 <td><p><span class="term"><code class="computeroutput">first</code></span></p></td>
71 <td><p>first element in the input range </p></td>
74 <td><p><span class="term"><code class="computeroutput">last</code></span></p></td>
75 <td><p>last element in the input range </p></td>
78 <td><p><span class="term"><code class="computeroutput">op</code></span></p></td>
79 <td><p>binary operator used to check for uniqueness </p></td>
82 <td><p><span class="term"><code class="computeroutput">queue</code></span></p></td>
83 <td><p>command queue to perform the operation</p></td>
89 <td><p><span class="term">Returns:</span></p></td>
90 <td><p><code class="computeroutput">InputIterator</code> to the new logical end of the range</p></td>
96 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
97 <td align="left"></td>
98 <td align="right"><div class="copyright-footer">Copyright © 2013, 2014 Kyle Lutz<p>
99 Distributed under the Boost Software License, Version 1.0. (See accompanying
100 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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