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<html> <head> <title>BOOST_PP_ITERATION_PARAMS_x</title> <link rel="stylesheet" type="text/css" href="../styles.css"> </head> <body> <div style="margin-left: 0px;"> The <b>BOOST_PP_ITERATION_PARAMS_<i>x</i></b> macro is a user-defined <i>named external argument</i> used by <b>BOOST_PP_ITERATE</b>.&nbsp; It denotes the lower bound, upper bound, and the filename of a <i>file-iteration</i>.&nbsp;It can optionally denote flags associated with a <i>file-iteration</i> as well. </div> <h4>Usage</h4> <div class="code"> #define <b>BOOST_PP_ITERATION_PARAMS_<i>x</i></b> (<i>c</i>, (<i>start</i>, <i>finish</i>, <i>filename</i> [, <i>flags</i>])) </div> <h4>Arguments</h4> <dl> <dt>x</dt> <dd> The iteration depth of the next <i>file-iteration</i>.&nbsp; This value <i>must</i> be the current iteration depth + <i>1</i>. </dd> <dt>c</dt> <dd> The number of parameters.&nbsp; If <i>flags</i> is specified, this value must be <i>4</i>.&nbsp; Otherwise, it must be <i>3</i>. </dd> <dt>start</dt> <dd> The lower bound (inclusive) of a <i>file-iteration</i>.&nbsp; Valid values range from <i>0</i> to <b>BOOST_PP_LIMIT_ITERATION</b>. </dd> <dt>finish</dt> <dd> The upper bound (inclusive) of a <i>file-iteration</i>.&nbsp; Valid values range from <i>0</i> to <b>BOOST_PP_LIMIT_ITERATION</b>. </dd> <dt>filename</dt> <dd> A quoted or angle-bracketed filename to used as the target of a <i>file-iteration</i>. </dd> <dt>[flags]</dt> <dd> The flags associated with this <i>file-iteration</i> used to discriminate between different <i>file-iterations</i> in the same file. </dd> </dl> <h4>Remarks</h4> <div> Note that there is a whitespace character after the macro identifier. </div> <div> This macro is must be defined as an <i>array</i> of arguments in one of the two formats above (with or without <i>flags</i>). It is the primary method of passing arguments to <b>BOOST_PP_ITERATE</b>.&nbsp; Both <i>start</i> and <i>finish</i> are <i>evaluated parameters</i>, which implies that simple arithmetic can be used. </div> <div> This macro is automatically undefined for reuse by a call to <b>BOOST_PP_ITERATE</b>. </div> <h4>See Also</h4> <ul> <li><a href="iterate.html">BOOST_PP_ITERATE</a></li> <li><a href="limit_iteration.html">BOOST_PP_LIMIT_ITERATION</a></li> </ul> <hr size="1"> <div style="margin-left: 0px;"> <i>� Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i> </br><i>� Copyright Paul Mensonides 2002</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>