1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79
|
<html>
<head>
<title>BOOST_PP_SEQ_ELEM</title>
<link rel="stylesheet" type="text/css" href="../styles.css">
</head>
<body>
<div style="margin-left: 0px;">
The <b>BOOST_PP_SEQ_ELEM</b> macro extracts an element from a <i>seq</i>.
</div>
<h4>
Usage
</h4>
<div class="code">
<b>BOOST_PP_SEQ_ELEM</b>(<i>i</i>, <i>list</i>)
</div>
<h4>
Arguments
</h4>
<dl>
<dt>i</dt>
<dd>
The zero-based index of the element to be extracted.
</dd>
<dt>seq</dt>
<dd>
The <i>seq</i> from which an element is to be extracted.
</dd>
</dl>
<h4>
Remarks
</h4>
<div>
The index <i>i</i> must be in the range of <i>0</i> to <b>BOOST_PP_SEQ_SIZE</b>(<i>seq</i>)
- <i>1</i>.
</div>
<h4>
Requirements
</h4>
<div>
<b>Header:</b> <a href="../headers/seq/elem.html"><boost/preprocessor/seq/elem.hpp></a>
</div>
<h4>
Sample Code
</h4>
<div>
<pre>
#include <<a href="../headers/seq/elem.html">boost/preprocessor/seq/elem.hpp</a>>
<a href="seq_elem.html">BOOST_PP_SEQ_ELEM</a>(1, (a)(b)(c)) // expands to b
#define SEQ \
(0)(1)(2)(3)(4)(5)(6)(7)(8)(9) \
(10)(11)(12)(13)(14)(15)(16)(17)(18)(19) \
(20)(21)(22)(23)(24)(25)(26)(27)(28)(29) \
(30)(31)(32)(33)(34)(35)(36)(37)(38)(39) \
(40)(41)(42)(43)(44)(45)(46)(47)(48)(49) \
(50)(51)(52)(53)(54)(55)(56)(57)(58)(59) \
(60)(61)(62)(63)(64)(65)(66)(67)(68)(69) \
(70)(71)(72)(73)(74)(75)(76)(77)(78)(79) \
(80)(81)(82)(83)(84)(85)(86)(87)(88)(89) \
(90)(91)(92)(93)(94)(95)(96)(97)(98)(99) \
/**/
<a href="seq_elem.html">BOOST_PP_SEQ_ELEM</a>(88, SEQ) // expands to 88
</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>
|