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<html> <head> <meta content="text/html; charset=windows-1252" http-equiv="content-type"> <title>BOOST_PP_TUPLE_REPLACE</title> <link rel="stylesheet" type="text/css" href="../styles.css"> </head> <body> <div style="margin-left: 0px;"> The <b>BOOST_PP_TUPLE_REPLACE</b> macro replaces an element in a <i>tuple</i>.</div> <h4>Usage</h4> <div class="code"> <b>BOOST_PP_TUPLE_REPLACE</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> A <i>tuple</i> to replace an element in. </dd> <dt>i</dt> <dd> The zero-based position in <i>tuple</i> of the element to be replaced.&nbsp; Valid values range from <i>0</i> to <b>BOOST_PP_TUPLE_SIZE</b>(<i>tuple</i>) - <i>1</i>.</dd> <dt>elem</dt> <dd> The replacement element. </dd> </dl> <h4>Remarks</h4> <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_REPLACE_D</b>.</div> <h4>See Also</h4> <ul> <li><a href="tuple_replace_d.html">BOOST_PP_TUPLE_REPLACE_D</a></li> </ul> <h4>Requirements</h4> <div> <b>Header:</b> &nbsp;<a href="../headers/tuple/replace.html">&lt;boost/preprocessor/tuple/replace.hpp&gt;</a> </div> <h4>Sample Code</h4> <div> <pre>#include &lt;<a href="../headers/tuple/replace.html">boost/preprocessor/tuple/replace.hpp</a>&gt; #define TUPLE (a, x, c) <a href="tuple_replace.html">BOOST_PP_TUPLE_REPLACE</a>(TUPLE, 1, b) // expands to (a, b, c)) </pre></div> <hr size="1"> <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> </div> </body> </html>