preprocessor/doc/ref/tuple_insert.html
Edward Diener b03b732a19 Updated documentation for tuples.
[SVN r86788]
2013-11-23 03:59:40 +00:00

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<div style="margin-left: 0px;"> The <b>BOOST_PP_TUPLE_INSERT</b> macro
inserts an element into an <i>tuple</i>.</div>
<h4>Usage</h4>
<div class="code"> <b>BOOST_PP_TUPLE_INSERT</b>(<i>tuple</i>, <i>i</i>, <i>elem</i>)
<a href="../topics/variadic_macros.html#VNotation"><sup>(v)</sup></a></div>
<h4>Arguments</h4>
<dl>
<dt>tuple</dt>
<dd> The <i>tuple</i> into which an element is to be inserted. </dd>
<dt>i</dt>
<dd> The zero-based position in <i>tuple</i> where an element is to be
inserted.&nbsp; Valid values range from <i>0</i> to <b>BOOST_PP_TUPLE_SIZE</b>(<i>tuple</i>).</dd>
<dt>elem</dt>
<dd> The element to insert. </dd>
</dl>
<h4>Remarks</h4>
<div> This macro inserts <i>elem</i> before the element at index <i>i</i>.
</div>
<div> If the operation attempts to create an <i>tuple</i> that is larger
than <b>BOOST_PP_LIMIT_TUPLE</b>, the result is undefined.</div>
<div> This macro uses <b>BOOST_PP_WHILE</b> interally.&nbsp; Therefore, to
use the <i>d</i> parameter passed from other macros that use <b>BOOST_PP_WHILE</b>,
see <b>BOOST_PP_TUPLE_INSERT_D</b>.</div>
<h4>See Also</h4>
<ul>
<li><a href="tuple_insert_d.html">BOOST_PP_TUPLE_INSERT_D</a></li>
</ul>
<h4>Requirements</h4>
<div> <b>Header:</b> &nbsp;<a href="../headers/tuple/insert.html">&lt;boost/preprocessor/tuple/insert.hpp&gt;</a>
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<h4>Sample Code</h4>
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<pre>#include &lt;<a href="../headers/tuple/insert.html">boost/preprocessor/tuple/insert.hpp</a>&gt;
#define TUPLE (a, b, d)
<a href="tuple_insert.html">BOOST_PP_TUPLE_INSERT</a>(TUPLE, 2, c) // expands to (a, b, c, d)
</pre></div>
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<div style="margin-left: 0px;"> <i>© Copyright Edward Diener 2013</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>
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