projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | <html> |
| 2 | <head> | |
| 3 | <title>BOOST_PP_LIST_APPEND</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_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. | |
| 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>. | |
| 36 | There is no longer any such restriction. | |
| 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> <a href="../headers/list/append.html"><boost/preprocessor/list/append.hpp></a> | |
| 46 | </div> | |
| 47 | <h4>Sample Code</h4> | |
| 48 | <div><pre> | |
| 49 | #include <<a href="../headers/list/append.html">boost/preprocessor/list/append.hpp</a>> | |
| 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> | |
| 57 | <hr size="1"> | |
| 58 | <div style="margin-left: 0px;"> | |
| 59 |