1<html> 2 <head> 3 <meta content="text/html; charset=windows-1252" http-equiv="content-type"> 4 <title>BOOST_PP_TUPLE_REPLACE</title> 5 <link rel="stylesheet" type="text/css" href="../styles.css"> 6 </head> 7 <body> 8 <div style="margin-left: 0px;"> The <b>BOOST_PP_TUPLE_REPLACE</b> macro 9 replaces an element in a <i>tuple</i>.</div> 10 <h4>Usage</h4> 11 <div class="code"> <b>BOOST_PP_TUPLE_REPLACE</b>(<i>tuple</i>, <i>i</i>, <i>elem</i>) 12 <a href="../topics/variadic_macros.html#VNotation"><sup>(v)</sup></a></div> 13 <h4>Arguments</h4> 14 <dl> 15 <dt>tuple</dt> 16 <dd> A <i>tuple</i> to replace an element in. </dd> 17 <dt>i</dt> 18 <dd> The zero-based position in <i>tuple</i> of the element to be 19 replaced. Valid values range from <i>0</i> to <b>BOOST_PP_TUPLE_SIZE</b>(<i>tuple</i>) 20 - <i>1</i>.</dd> 21 <dt>elem</dt> 22 <dd> The replacement element. </dd> 23 </dl> 24 <h4>Remarks</h4> 25 <div> This macro uses <b>BOOST_PP_WHILE</b> interally. Therefore, to 26 use the <i>d</i> parameter passed from other macros that use <b>BOOST_PP_WHILE</b>, 27 see <b>BOOST_PP_TUPLE_REPLACE_D</b>.</div> 28 <h4>See Also</h4> 29 <ul> 30 <li><a href="tuple_replace_d.html">BOOST_PP_TUPLE_REPLACE_D</a></li> 31 </ul> 32 <h4>Requirements</h4> 33 <div> <b>Header:</b> <a href="../headers/tuple/replace.html"><boost/preprocessor/tuple/replace.hpp></a> 34 </div> 35 <h4>Sample Code</h4> 36 <div> 37 <pre>#include <<a href="../headers/tuple/replace.html">boost/preprocessor/tuple/replace.hpp</a>> 38 39#define TUPLE (a, x, c) 40 41<a href="tuple_replace.html">BOOST_PP_TUPLE_REPLACE</a>(TUPLE, 1, b) // expands to (a, b, c)) 42</pre></div> 43 <hr size="1"> 44 <div style="margin-left: 0px;"> <i>� Copyright Edward Diener 2013</i> </div> 45 <div style="margin-left: 0px;"> 46 <p><small>Distributed under the Boost Software License, Version 1.0. (See 47 accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> 48 or copy at <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p> 49 </div> 50 </body> 51</html> 52