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- <html>
- <head>
- <title>BOOST_PP_LIST_APPEND_D</title>
- <link rel="stylesheet" type="text/css" href="../styles.css">
- </head>
- <body>
- <div style="margin-left: 0px;">
- The <b>BOOST_PP_LIST_APPEND_D</b> macro appends two <i>lists</i>.
- It reenters <b>BOOST_PP_WHILE</b> with maximum efficiency.
- </div>
- <h4>Usage</h4>
- <div class="code">
- <b>BOOST_PP_LIST_APPEND_D</b>(<i>d</i>, <i>a</i>, <i>b</i>)
- </div>
- <h4>Arguments</h4>
- <dl>
- <dt>d</dt>
- <dd>
- The next available <b>BOOST_PP_WHILE</b> iteration.
- </dd>
- <dt>a</dt>
- <dd>
- The first <i>list</i>.
- </dd>
- <dt>b</dt>
- <dd>
- The second <i>list</i>.
- </dd>
- </dl>
- <h4>Remarks</h4>
- <div>
- This macro appends two lists.
- 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>)),
- this macro will expand to:
- <div>
- (<i>1</i>, (<i>2</i>, (<i>3</i>, (<i>4</i>, (<i>5</i>, <b>BOOST_PP_NIL</b>)))))
- </div>
- </div>
- <h4>See Also</h4>
- <ul>
- <li><a href="list_append.html">BOOST_PP_LIST_APPEND</a></li>
- </ul>
- <h4>Requirements</h4>
- <div>
- <b>Header:</b> <a href="../headers/list/append.html"><boost/preprocessor/list/append.hpp></a>
- </div>
- <h4>Sample Code</h4>
- <div><pre>
- #include <<a href="../headers/arithmetic/dec.html">boost/preprocessor/arithmetic/dec.hpp</a>>
- #include <<a href="../headers/control/while.html">boost/preprocessor/control/while.hpp</a>>
- #include <<a href="../headers/list/append.html">boost/preprocessor/list/append.hpp</a>>
- #include <<a href="../headers/tuple/elem.html">boost/preprocessor/tuple/elem.hpp</a>>
- #define LIST (1, (2, (3, <a href="nil.html">BOOST_PP_NIL</a>)))
- #define PRED(d, state) <a href="tuple_elem.html">BOOST_PP_TUPLE_ELEM</a>(3, 1, state)
- #define OP(d, state) \
- ( \
- <a href="list_append_d.html">BOOST_PP_LIST_APPEND_D</a>( \
- d, <a href="tuple_elem.html">BOOST_PP_TUPLE_ELEM</a>(3, 0, state), \
- <a href="tuple_elem.html">BOOST_PP_TUPLE_ELEM</a>(3, 2, state) \
- ), \
- <a href="dec.html">BOOST_PP_DEC</a>( \
- <a href="tuple_elem.html">BOOST_PP_TUPLE_ELEM</a>(3, 1, state) \
- ), \
- <a href="tuple_elem.html">BOOST_PP_TUPLE_ELEM</a>(3, 2, state) \
- ) \
- /**/
- #define LIST_MULTIPLY(c, list) \
- <a href="tuple_elem.html">BOOST_PP_TUPLE_ELEM</a>( \
- 3, 0, \
- <a href="while.html">BOOST_PP_WHILE</a>( \
- PRED, OP, \
- (<a href="nil.html">BOOST_PP_NIL</a>, c, list) \
- ) \
- ) \
- /**/
- LIST_MULTIPLY(3, LIST)
- // expands to (1, (2, (3, (1, (2, (3, (1, (2, (3, <a href="nil.html">BOOST_PP_NIL</a>)))))))))
- </pre></div>
- <hr size="1">
- <div style="margin-left: 0px;">
- <i>© Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i>
- </br><i>© Copyright Paul Mensonides 2002</i>
- </div>
- <div style="margin-left: 0px;">
- <p><small>Distributed under the Boost Software License, Version 1.0. (See
- accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
- copy at <a href=
- "http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p>
- </div>
- </body>
- </html>
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