59 lines
1.7 KiB
HTML
59 lines
1.7 KiB
HTML
<html>
|
|
<head>
|
|
<title>BOOST_PP_LIST_APPEND</title>
|
|
<link rel="stylesheet" type="text/css" href="../styles.css">
|
|
</head>
|
|
<body>
|
|
<div style="margin-left: 0px;">
|
|
The <b>BOOST_PP_LIST_APPEND</b> macro appends two <i>lists</i>.
|
|
</div>
|
|
<h4>Usage</h4>
|
|
<div class="code">
|
|
<b>BOOST_PP_LIST_APPEND</b>(<i>a</i>, <i>b</i>)
|
|
</div>
|
|
<h4>Arguments</h4>
|
|
<dl>
|
|
<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>
|
|
<div>
|
|
Previously, this macro could not be used inside <b>BOOST_PP_WHILE</b>.
|
|
There is no longer any such restriction.
|
|
It is more efficient, however, to use <b>BOOST_PP_LIST_APPEND_D</b> in such a situation.
|
|
</div>
|
|
<h4>See Also</h4>
|
|
<ul>
|
|
<li><a href="list_append_d.html">BOOST_PP_LIST_APPEND_D</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/list/append.html">boost/preprocessor/list/append.hpp</a>>
|
|
|
|
#define L1 (a, (b, (c, <a href="nil.html">BOOST_PP_NIL</a>)))
|
|
#define L2 (x, (y, (z, <a href="nil.html">BOOST_PP_NIL</a>)))
|
|
|
|
<a href="list_append.html">BOOST_PP_LIST_APPEND</a>(L1, L2)
|
|
// expands to (a, (b, (c, (x, (y, (z, <a href="nil.html">BOOST_PP_NIL</a>))))))
|
|
</pre></div>
|
|
</body>
|
|
</html>
|