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[SVN r16150]
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Paul Mensonides
2002-11-07 23:39:29 +00:00
parent 54bdb38619
commit 5be4c6ee5a
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doc/ref/set_first_n.html
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<html>
<head>
<title>BOOST_PP_SET_FIRST_N</title>
<link rel="stylesheet" type="text/css" href="../styles.css">
</head>
<body>
<div style="margin-left: 0px;">
The <b>BOOST_PP_SET_FIRST_N</b> macro expands to a <i>set</i> of the first <i>n</i> elements of a <i>set</i>.
</div>
<h4>Usage</h4>
<div class="code">
<b>BOOST_PP_SET_FIRST_N</b>(<i>n</i>, <i>list</i>)
<head>
<title>BOOST_PP_SEQ_FIRST_N</title>
<link rel="stylesheet" type="text/css" href="../styles.css">
</head>
<body>
<div style="margin-left: 0px;">
The <b>BOOST_PP_SEQ_FIRST_N</b> macro expands to a <i>seq</i> of the first <i>n</i>
elements of a <i>seq</i>.
</div>
<h4>Arguments</h4>
<h4>
Usage
</h4>
<div class="code">
<b>BOOST_PP_SEQ_FIRST_N</b>(<i>n</i>, <i>list</i>)
</div>
<h4>
Arguments
</h4>
<dl>
<dt>n</dt>
<dd>
@@ -19,28 +24,40 @@
</dd>
<dt>list</dt>
<dd>
The <i>set</i> from which the elements are extracted.
The <i>seq</i> from which the elements are extracted.
</dd>
</dl>
<h4>Remarks</h4>
<h4>
Remarks
</h4>
<div>
This macro extracts <i>n</i> elements from the beginning of <i>set</i> and returns them as a new <i>set</i>
This macro extracts <i>n</i> elements from the beginning of <i>seq</i> and
returns them as a new <i>seq</i>
</div>
<h4>See Also</h4>
<h4>
See Also
</h4>
<ul>
<li><a href="set_rest_n.html">BOOST_PP_SET_REST_N</a></li>
<li>
<a href="seq_rest_n.html">BOOST_PP_SEQ_REST_N</a></li>
</ul>
<h4>Requirements</h4>
<h4>
Requirements
</h4>
<div>
<b>Header:</b> &nbsp;<a href="../headers/set/first_n.hpp.html">&lt;boost/preprocessor/set/first_n.hpp&gt;</a>
<b>Header:</b> &nbsp;<a href="../headers/seq/first_n.hpp.html">&lt;boost/preprocessor/seq/first_n.hpp&gt;</a>
</div>
<h4>Sample Code</h4>
<div><pre>
#include &lt;<a href="../headers/set/first_n.hpp.html">boost/preprocessor/set/first_n.hpp</a>&gt;
<h4>
Sample Code
</h4>
<div>
<pre>
#include &lt;<a href="../headers/seq/first_n.hpp.html">boost/preprocessor/seq/first_n.hpp</a>&gt;
#define SET (a)(b)(c)(d)(e)
#define SEQ (a)(b)(c)(d)(e)
<a href="set_first_n.html">BOOST_PP_SET_FIRST_N</a>(2, SET) // expands to (a)(b)
</pre></div>
</body>
<a href="seq_first_n.html">BOOST_PP_SEQ_FIRST_N</a>(2, SEQ) // expands to (a)(b)
</pre>
</div>
</body>
</html>