ceph/src/boost/libs/qvm/doc/vec_index_read.html

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  14 <h1>QVM: Quaternions, Vectors, Matrices</h1>
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  16 <!-- Copyright (c) 2008-2016 Emil Dotchevski and Reverge Studios, Inc. -->
  17 <!-- Distributed under the Boost Software License, Version 1.0. (See accompanying -->
  18 <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -->
  19 <div class="RenoIncludeDIV"><div class="RenoAutoDIV"><h3>vec_index_read</h3>
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  21 <div class="RenoIncludeDIV"><p><span class="RenoEscape">&#35;<!--<wiki>`&#35;</wiki>--></span>include &lt;<span class="RenoLink"><a href="boost_qvm_vec_index_hpp.html">boost/qvm/vec_index.hpp</a></span>&gt;</p>
  22 <pre>namespace boost
  23 {
  24     namespace <span class="RenoLink"><a href="qvm.html">qvm</a></span>
  25     {
  26 <span class="RenoIncludeSPAN">        //Only <span class="RenoLink"><a href="SFINAE_enable_if.html">enabled if</a></span>:
  27         //  <span class="RenoLink"><a href="is_vec.html">is_vec</a></span>&lt;A&gt;::value
  28         template &lt;class A&gt;
  29         typename <span class="RenoLink"><a href="vec_traits.html">vec_traits</a></span>&lt;A&gt;::<span class="RenoLink"><a href="vec_traits_V_scalar_type.html">scalar_type</a></span>
  30         <span class="RenoLink">vec_index_read</span>( A const &amp; a, int i );</span>
  31     }
  32 }</pre>
  33 </div><h4>Returns:</h4>
  34 <p>The <i>i</i>-th element of <i>a</i>.</p>
  35 <h4>Preconditions:</h4>
  36 <p><i>i &gt;= 0 &amp;&amp; i &lt; <span class="RenoLink"><a href="vec_traits.html">vec_traits</a></span>&lt;A&gt;::<span class="RenoLink"><a href="vec_traits_Vector_dim.html">dim</a></span></i>.</p>
  37 <h4>Note:</h4>
  38 <p>This function uses template metaprogramming and can be used even if the optional access function <i><span class="RenoLink"><a href="vec_traits.html">vec_traits</a></span>&lt;A&gt;::<span class="RenoLink"><a href="vec_traits_V_read_element_idx.html">read_element_idx</a></span></i> is not available.</p>
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  40 See also: <span class="RenoPageList"><a href="boost_qvm_vec_index_hpp.html">boost/qvm/vec_index.hpp</a></span>
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  42 <!-- Copyright (c) 2008-2016 Emil Dotchevski and Reverge Studios, Inc. -->
  43 <!-- Distributed under the Boost Software License, Version 1.0. (See accompanying -->
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  49 <small>Copyright (c) 2008-2016 by Emil Dotchevski and Reverge Studios, Inc.<br/>
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