| <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> |
