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extended array support

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[SVN r15747]
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Paul Mensonides
2002-10-06 02:37:37 +00:00
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<html>
<head>
<title>BOOST_PP_ARRAY_REPLACE</title>
<link rel="stylesheet" type="text/css" href="../styles.css">
</head>
<body>
<div style="margin-left: 0px;">
The <b>BOOST_PP_ARRAY_REPLACE</b> macro replaces an element in an <i>array</i>.
</div>
<h4>Usage</h4>
<div class="code">
<b>BOOST_PP_ARRAY_REPLACE</b>(<i>array</i>, <i>i</i>, <i>elem</i>)
</div>
<h4>Arguments</h4>
<dl>
<dt>array</dt>
<dd>
An <i>array</i> to replace an element in.
</dd>
<dt>i</dt>
<dd>
The zero-based position in <i>array</i> of the element to be replaced.&nbsp;
Valid values range from <i>0</i> to <b>BOOST_PP_ARRAY_SIZE</b>(<i>array</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_ARRAY_REPLACE_D</b>.
</div>
<h4>See Also</h4>
<ul>
<li><a href="array_replace_d.html">BOOST_PP_ARRAY_REPLACE_D</a></li>
</ul>
<h4>Requirements</h4>
<div>
<b>Header:</b> &nbsp;<a href="../headers/array/replace.hpp.html">&lt;boost/preprocessor/array/replace.hpp&gt;</a>
</div>
<h4>Sample Code</h4>
<div><pre>
#include &lt;<a href="../headers/array/replace.hpp.html">boost/preprocessor/array/replace.hpp</a>&gt;
#define ARRAY (3, (a, x, c))
<a href="array_replace.html">BOOST_PP_ARRAY_REPLACE</a>(ARRAY, 1, b) // expands to (3, (a, b, c))
</pre></div>
</body>
</html>