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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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2013-11-22 03:38:17 +00:00
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<meta content="text/html; charset=windows-1252"
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2013-11-22 03:38:17 +00:00
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<title>BOOST_PP_TUPLE_INSERT</title>
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<link rel="stylesheet" type="text/css" href="../styles.css">
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2020-09-17 18:25:36 -04:00
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<div style="margin-left: 0px;"> The <b>BOOST_PP_TUPLE_INSERT</b>
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macro inserts an element into an <i>tuple</i>.</div>
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<h4>Usage</h4>
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<div class="code"> <b>BOOST_PP_TUPLE_INSERT</b>(<i>tuple</i>, <i>i</i>,
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<i>elem</i>) <a href="../topics/variadic_macros.html#VNotation"><sup>(v)</sup></a></div>
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<h4>Arguments</h4>
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<dl>
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<dt>tuple</dt>
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<dd> The <i>tuple</i> into which an element is to be inserted. </dd>
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<dt>i</dt>
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<dd> The zero-based position in <i>tuple</i> where an element is
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to be inserted. Valid values range from <i>0</i> to <b>BOOST_PP_TUPLE_SIZE</b>(<i>tuple</i>).</dd>
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<dt>elem</dt>
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<dd> The element to insert. </dd>
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</dl>
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<h4>Remarks</h4>
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<div> This macro inserts <i>elem</i> before the element at index <i>i</i>.
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</div>
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<div> If the operation attempts to create an <i>tuple</i> that is
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larger than <b>BOOST_PP_LIMIT_TUPLE</b>, the result is undefined.</div>
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<div> This macro uses <b>BOOST_PP_WHILE</b> interally.
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Therefore, to use the <i>d</i> parameter passed from other macros
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that use <b>BOOST_PP_WHILE</b>, see <b>BOOST_PP_TUPLE_INSERT_D</b>.</div>
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<h4>See Also</h4>
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<ul>
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<li><a href="tuple_insert_d.html">BOOST_PP_TUPLE_INSERT_D</a></li>
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</ul>
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<h4>Requirements</h4>
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<div> <b>Header:</b> <a href="../headers/tuple/insert.html"><boost/preprocessor/tuple/insert.hpp></a>
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</div>
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<h4>Sample Code</h4>
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<div>
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<pre>#include <<a href="../headers/tuple/insert.html">boost/preprocessor/tuple/insert.hpp</a>>
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#define TUPLE (a, b, d)
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<a href="tuple_insert.html">BOOST_PP_TUPLE_INSERT</a>(TUPLE, 2, c) // expands to (a, b, c, d)
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</pre>
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</div>
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<hr size="1">
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<div style="margin-left: 0px;"> <i><EFBFBD> Copyright Edward Diener 2013</i>
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</div>
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<div style="margin-left: 0px;">
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<p><small>Distributed under the Boost Software License, Version
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1.0. (See accompanying file <a
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href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
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copy at <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p>
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