1<html> 2<head> 3 <title>BOOST_PP_TUPLE_SIZE</title> 4 <link rel="stylesheet" type="text/css" href="../styles.css"> 5</head> 6<body> 7<div style="margin-left: 0px;"> The <b>BOOST_PP_TUPLE_SIZE</b> macro 8expands to the size of the <i>tuple</i> passed to it. </div> 9<h4>Usage</h4> 10<div class="code"> <b>BOOST_PP_TUPLE_SIZE</b>(<i>tuple</i>) <a href="../topics/variadic_macros.html#VNotation" target="_self"><sup>(v)</sup></a><br> 11 </div> 12<h4>Arguments</h4> 13<dl> 14 <dt>tuple</dt> 15 <dd> A <i>tuple</i> whose size is to be extracted. </dd> 16</dl> 17<h4>Requirements</h4> 18<div> <b>Header:</b> <a href="../headers/tuple/size.html"><boost/preprocessor/tuple/size.hpp></a> 19</div> 20<h4>Sample Code</h4> 21<div> 22<pre>#include <<a href="../headers/tuple/size.html">boost/preprocessor/tuple/size.hpp</a>><br><br>#define TUPLE (x, y, z)<br><br><a href="tuple_size.html">BOOST_PP_TUPLE_SIZE</a>(TUPLE) // expands to 3<br></pre> 23</div> 24<hr size="1"> 25<div style="margin-left: 0px;"> <i></i><i>� Copyright Edward Diener 2011,2013</i> </div> 26<div style="margin-left: 0px;"> 27<p><small>Distributed under the Boost Software License, Version 1.0. 28(See accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> 29or copy at <a href="http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p> 30</div> 31</body> 32</html> 33