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

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   2 <head>
   3         <title>BOOST_PP_LIST_APPEND</title>
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   8                 The <b>BOOST_PP_LIST_APPEND</b> macro appends two <i>lists</i>.
   9         </div>
  10         <h4>Usage</h4>
  11                 <div class="code">
  12                         <b>BOOST_PP_LIST_APPEND</b>(<i>a</i>, <i>b</i>)
  13                 </div>
  14         <h4>Arguments</h4>
  15                 <dl>
  16                         <dt>a</dt>
  17                         <dd>
  18                                 The first <i>list</i>.
  19                         </dd>
  20                         <dt>b</dt>
  21                         <dd>
  22                                 The second <i>list</i>.
  23                         </dd>
  24                 </dl>
  25         <h4>Remarks</h4>
  26                 <div>
  27                         This macro appends two lists.&nbsp;
  28                         For example, if <i>a</i> is (<i>1</i>, (<i>2</i>, (<i>3</i>, <b>BOOST_PP_NIL</b>))) and <i>b</i> is (<i>4</i>, (<i>5</i>, <b>BOOST_PP_NIL</b>)),
  29                         this macro will expand to:
  30                         <div>
  31                                 (<i>1</i>, (<i>2</i>, (<i>3</i>, (<i>4</i>, (<i>5</i>, <b>BOOST_PP_NIL</b>)))))
  32                         </div>
  33                 </div>
  34                 <div>
  35                         Previously, this macro could not be used inside <b>BOOST_PP_WHILE</b>.&nbsp;
  36                         There is no longer any such restriction.&nbsp;
  37                         It is more efficient, however, to use <b>BOOST_PP_LIST_APPEND_D</b> in such a situation.
  38                 </div>
  39         <h4>See Also</h4>
  40                 <ul>
  41                         <li><a href="list_append_d.html">BOOST_PP_LIST_APPEND_D</a></li>
  42                 </ul>
  43         <h4>Requirements</h4>
  44                 <div>
  45                         <b>Header:</b> &nbsp;<a href="../headers/list/append.html">&lt;boost/preprocessor/list/append.hpp&gt;</a>
  46                 </div>
  47         <h4>Sample Code</h4>
  48 <div><pre>
  49 #include &lt;<a href="../headers/list/append.html">boost/preprocessor/list/append.hpp</a>&gt;
  50
  51 #define L1 (a, (b, (c, <a href="nil.html">BOOST_PP_NIL</a>)))
  52 #define L2 (x, (y, (z, <a href="nil.html">BOOST_PP_NIL</a>)))
  53
  54 <a href="list_append.html">BOOST_PP_LIST_APPEND</a>(L1, L2)
  55    // expands to (a, (b, (c, (x, (y, (z, <a href="nil.html">BOOST_PP_NIL</a>))))))
  56 </pre></div>
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  59                 <i>© Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i>
  60                 </br><i>© Copyright Paul Mensonides 2002</i>
  61         </div>
  62         <div style="margin-left: 0px;">
  63                 <p><small>Distributed under the Boost Software License, Version 1.0. (See
  64                 accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
  65                 copy at <a href=
  66                 "http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p>
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