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  26 <a name="boost.compute.prev_permutation"></a><div class="titlepage"></div>
  27 <div class="refnamediv">
  28 <h2><span class="refentrytitle">Function template prev_permutation</span></h2>
  29 <p>boost::compute::prev_permutation &#8212; Permutation generating algorithm. </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: &lt;<a class="link" href="../../boost_compute/reference.html#header.boost.compute.algorithm.prev_permutation_hpp" title="Header &lt;boost/compute/algorithm/prev_permutation.hpp&gt;">boost/compute/algorithm/prev_permutation.hpp</a>&gt;
  33
  34 </span>
  35 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> InputIterator<span class="special">&gt;</span>
  36   <span class="keyword">bool</span> <span class="identifier">prev_permutation</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>
  37                         <span class="identifier">command_queue</span> <span class="special">&amp;</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>
  38 <div class="refsect1">
  39 <a name="idm46113331981056"></a><h2>Description</h2>
  40 <p>Transforms the range [first, last) into the previous permutation from the set of all permutations arranged in lexicographic order
  41
  42 Space complexity: \Omega(1) </p>
  43 <div class="variablelist"><table border="0" class="variablelist compact">
  44 <colgroup>
  45 <col align="left" valign="top">
  46 <col>
  47 </colgroup>
  48 <tbody>
  49 <tr>
  50 <td><p><span class="term">Parameters:</span></p></td>
  51 <td><div class="variablelist"><table border="0" class="variablelist compact">
  52 <colgroup>
  53 <col align="left" valign="top">
  54 <col>
  55 </colgroup>
  56 <tbody>
  57 <tr>
  58 <td><p><span class="term"><code class="computeroutput">first</code></span></p></td>
  59 <td><p>Iterator pointing to start of range </p></td>
  60 </tr>
  61 <tr>
  62 <td><p><span class="term"><code class="computeroutput">last</code></span></p></td>
  63 <td><p>Iterator pointing to end of range </p></td>
  64 </tr>
  65 <tr>
  66 <td><p><span class="term"><code class="computeroutput">queue</code></span></p></td>
  67 <td><p>Queue on which to execute</p></td>
  68 </tr>
  69 </tbody>
  70 </table></div></td>
  71 </tr>
  72 <tr>
  73 <td><p><span class="term">Returns:</span></p></td>
  74 <td><p>Boolean value signifying if the first permutation was crossed and the range was reset</p></td>
  75 </tr>
  76 </tbody>
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  82 <td align="right"><div class="copyright-footer">Copyright &#169; 2013, 2014 Kyle Lutz<p>
  83         Distributed under the Boost Software License, Version 1.0. (See accompanying
  84         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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