ceph/src/boost/libs/preprocessor/doc/ref/bitand.html

   1 <html>
   2 <head>
   3         <title>BOOST_PP_BITAND</title>
   4         <link rel="stylesheet" type="text/css" href="../styles.css">
   5 </head>
   6 <body>
   7         <div style="margin-left:  0px;">
   8                 The <b>BOOST_PP_BITAND</b> macro expands to the bitwise <i>AND</i> of its operands.
   9         </div>
  10         <h4>Usage</h4>
  11                 <div class="code">
  12                         <b>BOOST_PP_BITAND</b>(<i>x</i>, <i>y</i>)
  13                 </div>
  14         <h4>Arguments</h4>
  15                 <dl>
  16                         <dt>x</dt>
  17                         <dd>
  18                                 The left operand of the operation.&nbsp;
  19                                 This value must expand to <i>0</i> or <i>1</i>.
  20                         </dd>
  21                         <dt>y</dt>
  22                         <dd>
  23                                 The right operand of the operation.&nbsp;
  24                                 This value must expand to <i>0</i> or <i>1</i>.
  25                         </dd>
  26                 </dl>
  27         <h4>Remarks</h4>
  28                 <div>
  29                         If both <i>x</i> and <i>y</i> are <i>1</i>, this macro expands to <i>1</i>.&nbsp;
  30                         Otherwise, it expands to <i>0</i>.
  31                 </div>
  32                 <div>
  33                         This macro <i>does not</i> perform a boolean conversion on either operand before performing the bitwise <i>AND</i> operation.&nbsp;
  34                         If that conversion is necessary, use <b>BOOST_PP_AND</b> instead.
  35                 </div>
  36         <h4>See Also</h4>
  37                 <ul>
  38                         <li><a href="and.html">BOOST_PP_AND</a></li>
  39                 </ul>
  40         <h4>Requirements</h4>
  41                 <div>
  42                         <b>Header:</b> &nbsp;<a href="../headers/logical/bitand.html">&lt;boost/preprocessor/logical/bitand.hpp&gt;</a>
  43                 </div>
  44         <h4>Sample Code</h4>
  45 <div><pre>
  46 #include &lt;<a href="../headers/logical/bitand.html">boost/preprocessor/logical/bitand.hpp</a>&gt;
  47
  48 <a href="bitand.html">BOOST_PP_BITAND</a>(0, 0) // expands to 0
  49 <a href="bitand.html">BOOST_PP_BITAND</a>(0, 1) // expands to 0
  50 <a href="bitand.html">BOOST_PP_BITAND</a>(1, 0) // expands to 0
  51 <a href="bitand.html">BOOST_PP_BITAND</a>(1, 1) // expands to 1
  52 </pre></div>
  53         <hr size="1">
  54         <div style="margin-left: 0px;">
  55                 <i>© Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i>
  56                 </br><i>© Copyright Paul Mensonides 2002</i>
  57         </div>
  58         <div style="margin-left: 0px;">
  59                 <p><small>Distributed under the Boost Software License, Version 1.0. (See
  60                 accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
  61                 copy at <a href=
  62                 "http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p>
  63         </div>
  64 </body>
  65 </html>