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<html>
<head>
<title>BOOST_PP_REPEAT_1ST</title>
<link rel="stylesheet" type="text/css" href="../styles.css">
<script language="javascript" type="text/javascript" src="../scripts.js"></script>
</head>
<body onload="init('sample');">
<div style="margin-left: 0px;">
The <b>BOOST_PP_REPEAT_1ST</b> macro represents the first dimension of <b>BOOST_PP_REPEAT</b>.
</div>
<h4>Usage</h4>
<div class="code">
<b>BOOST_PP_REPEAT_1ST</b>(<i>count</i>, <i>macro</i>, <i>data</i>)
</div>
<h4>Arguments</h4>
<dl>
<dt>count</dt>
<dd>
The number of repetitious calls to <i>macro</i>.&nbsp;
Valid values range from <i>0</i> to <b>BOOST_PP_LIMIT_REPEAT</b>.
</dd>
<dt>macro</dt>
<dd class="incompatibility">
A ternary operation of the form <i>macro</i>(<i>z</i>, <i>n</i>, <i>data</i>).&nbsp;
This macro is expanded by <b>BOOST_PP_REPEAT_1ST</b> with the next available repetition depth,
the current repetition number, and the auxiliary <i>data</i> argument.&nbsp;
</dd>
<dt>data</dt>
<dd>
Auxiliary data passed to <i>macro</i>.
</dd>
</dl>
<h4>Remarks</h4>
<div>
This macro expands to the sequence:
<div class="incompatibility">
<i>macro</i>(<i>z</i>, <i>0</i>, <i>data</i>) <i>macro</i>(<i>z</i>, <i>1</i>, <i>data</i>) ... <i>macro</i>(<i>z</i>, <i>count</i> - <i>1</i>, <i>data</i>)
</div>
</div>
<div>
The <i>z</i> value that is passed to <i>macro</i> represents the next available repetition dimension.&nbsp;
Other macros that have <b>_Z</b> suffix variants internally use <b>BOOST_PP_REPEAT</b>--for example, <b>BOOST_PP_ENUM_PARAMS</b> and <b>BOOST_PP_ENUM_PARAMS_Z</b>.&nbsp;
Using these <b>_Z</b> versions is not strictly necessary, but passing the <i>z</i> value (that is passed to <i>macro</i>) to these macros allows them to reenter <b>BOOST_PP_REPEAT</b> with maximum efficiency.
</div>
<div>
To directly use this <i>z</i> value, rather than simply passing it to another macro, see <b>BOOST_PP_REPEAT_<i>z</i></b>.
</div>
<div>
This macro is deprecated.&nbsp;
It only exists for backward compatibility.&nbsp;
Use <b>BOOST_PP_REPEAT</b> instead.
</div>
<h4>See Also</h4>
<ul>
<li><a href="limit_repeat.html">BOOST_PP_LIMIT_REPEAT</a></li>
<li><a href="repeat.html">BOOST_PP_REPEAT</a></li>
<li><a href="repeat_z.html">BOOST_PP_REPEAT_<i>z</i></a></li>
</ul>
<h4>Requirements</h4>
<div>
<b>Header:</b> &nbsp;<a href="../headers/repetition/repeat.hpp.html">&lt;boost/preprocessor/repetition/repeat.hpp&gt;</a>
</div>
<h4><a class="local" onclick="toggle('sample');" onmouseover="change(this);" onmouseout="revert(this);">Sample Code</a></h4>
<div id="sample"><pre>
#include &lt;boost/preprocessor/repetition/repeat.hpp&gt;
#define DECL(z, n, text) text ## n = n;
BOOST_PP_REPEAT_1ST(5, DECL, int x)
<pre></div>
</body>
</html>