<html>
-<head>
- <title>BOOST_PP_FOR_r</title>
- <link rel="stylesheet" type="text/css" href="../styles.css">
-</head>
-<body>
- <div style="margin-left: 0px;">
- The <b>BOOST_PP_FOR_<i>r</i></b> macro represents a reentry into the <b>BOOST_PP_FOR</b> repetition construct.
- </div>
- <h4>Usage</h4>
- <div class="code">
- <b>BOOST_PP_FOR_</b> ## <i>r</i>(<i>state</i>, <i>pred</i>, <i>op</i>, <i>macro</i>)
- </div>
- <h4>Arguments</h4>
- <dl>
- <dt>r</dt>
- <dd>
- The next available <b>BOOST_PP_FOR</b> repetition.
- </dd>
- <dt>state</dt>
- <dd>
- The initial state.
- </dd>
- <dt>pred</dt>
- <dd>
- A binary predicate of the form <i>pred</i>(<i>r</i>, <i>state</i>).
- This macro must expand to an integer in the range of <i>0</i> to <b>BOOST_PP_LIMIT_MAG</b>.
- <b>BOOST_PP_FOR</b> repeatedly expands <i>macro</i> while this predicate returns non-zero.
- This macro is called with the next available <b>BOOST_PP_FOR</b> repetition and the current <i>state</i>.
- </dd>
- <dt>op</dt>
- <dd>
- A binary operation of the form <i>op</i>(<i>r</i>, <i>state</i>).
- This operation is expanded by <b>BOOST_PP_FOR</b> with the next available <b>BOOST_PP_FOR</b> repetition and the current <i>state</i>.
- This macro is repeatedly applied to the <i>state</i>, each time producing a new <i>state</i>, until <i>pred</i> returns <i>0</i>.
- </dd>
- <dt>macro</dt>
- <dd>
- A binary macro of the form <i>macro</i>(<i>r</i>, <i>state</i>).
- This macro is expanded by <b>BOOST_PP_FOR</b> with the next available <b>BOOST_PP_FOR</b> repetition and the current <i>state</i>.
- This macro is is repeated by <b>BOOST_PP_FOR</b> until <i>pred</i> returns <i>0</i>.
- </dd>
- </dl>
- <h4>Remarks</h4>
- <div>
- This macro expands to the sequence:
- <div>
- <i>macro</i>(<i>r</i>, <i>state</i>) <i>macro</i>(<i>r</i>, <i>op</i>(<i>r</i>, <i>state</i>)) ... <i>macro</i>(<i>r</i>, <i>op</i>(<i>r</i>, ... <i>op</i>(<i>r</i>, <i>state</i>) ... ))
- </div>
- </div>
- <div>
- At certain times, it may be necessary to perform the concatenation with <b>BOOST_PP_CAT</b> rather than the preprocessor token-pasting operator.
- This happens when the <i>r</i> value is a macro invocation itself.
- It needs a delay to allow it to expand.
- The syntax in such a scenario becomes:
- <div>
- <b>BOOST_PP_CAT</b>(<b>BOOST_PP_FOR_</b>, <i>r</i>)(<i>state</i>, <i>pred</i>, <i>op</i>, <i>macro</i>)
- </div>
- </div>
- <h4>See Also</h4>
- <ul>
- <li><a href="cat.html">BOOST_PP_CAT</a></li>
- <li><a href="for.html">BOOST_PP_FOR</a></li>
- <li><a href="limit_mag.html">BOOST_PP_LIMIT_MAG</a></li>
- </ul>
- <h4>Requirements</h4>
- <div>
- <b>Header:</b> <a href="../headers/repetition/for.html"><boost/preprocessor/repetition/for.hpp></a>
- </div>
- <h4>Sample Code</h4>
-<div><pre>
-#include <<a href="../headers/arithmetic/dec.html">boost/preprocessor/arithmetic/dec.hpp</a>>
+ <head>
+ <meta content="text/html; charset=windows-1252" http-equiv="content-type">
+ <title>BOOST_PP_FOR_r</title>
+ <link rel="stylesheet" type="text/css" href="../styles.css">
+ </head>
+ <body>
+ <div style="margin-left: 0px;"> The <b>BOOST_PP_FOR_<i>r</i></b> macro
+ represents a reentry into the <b>BOOST_PP_FOR</b> repetition construct. </div>
+ <h4>Usage</h4>
+ <div class="code"> <b>BOOST_PP_FOR_</b> ## <i>r</i>(<i>state</i>, <i>pred</i>,
+ <i>op</i>, <i>macro</i>) </div>
+ <h4>Arguments</h4>
+ <dl>
+ <dt>r</dt>
+ <dd> The next available <b>BOOST_PP_FOR</b> repetition. </dd>
+ <dt>state</dt>
+ <dd> The initial state. </dd>
+ <dt>pred</dt>
+ <dd> A binary predicate of the form <i>pred</i>(<i>r</i>, <i>state</i>).
+ This macro must expand to an integer in the range of <i>0</i> to <b>BOOST_PP_LIMIT_MAG</b>.
+ <b>BOOST_PP_FOR</b> repeatedly expands <i>macro</i> while this
+ predicate returns non-zero. This macro is called with the next
+ available <b>BOOST_PP_FOR</b> repetition and the current <i>state</i>.
+ </dd>
+ <dt>op</dt>
+ <dd> A binary operation of the form <i>op</i>(<i>r</i>, <i>state</i>).
+ This operation is expanded by <b>BOOST_PP_FOR</b> with the next
+ available <b>BOOST_PP_FOR</b> repetition and the current <i>state</i>.
+ This macro is repeatedly applied to the <i>state</i>, each time
+ producing a new <i>state</i>, until <i>pred</i> returns <i>0</i>. </dd>
+ <dt>macro</dt>
+ <dd> A binary macro of the form <i>macro</i>(<i>r</i>, <i>state</i>).
+ This macro is expanded by <b>BOOST_PP_FOR</b> with the next available <b>BOOST_PP_FOR</b>
+ repetition and the current <i>state</i>. This macro is is
+ repeated by <b>BOOST_PP_FOR</b> until <i>pred</i> returns <i>0</i>. </dd>
+ </dl>
+ <h4>Remarks</h4>
+ <div> This macro expands to the sequence:
+ <div> <i>macro</i>(<i>r</i>, <i>state</i>) <i>macro</i>(<i>r</i>, <i>op</i>(<i>r</i>,
+ <i>state</i>)) ... <i>macro</i>(<i>r</i>, <i>op</i>(<i>r</i>, ... <i>op</i>(<i>r</i>,
+ <i>state</i>) ... )) </div>
+ </div>
+ <div> At certain times, it may be necessary to perform the concatenation
+ with <b>BOOST_PP_CAT</b> rather than the preprocessor token-pasting
+ operator. This happens when the <i>r</i> value is a macro
+ invocation itself. It needs a delay to allow it to expand. The
+ syntax in such a scenario becomes:
+ <div> <b>BOOST_PP_CAT</b>(<b>BOOST_PP_FOR_</b>, <i>r</i>)(<i>state</i>,
+ <i>pred</i>, <i>op</i>, <i>macro</i>) </div>
+ </div>
+ <h4>See Also</h4>
+ <ul>
+ <li><a href="cat.html">BOOST_PP_CAT</a></li>
+ <li><a href="for.html">BOOST_PP_FOR</a></li>
+ <li><a href="limit_mag.html">BOOST_PP_LIMIT_MAG</a></li>
+ <li><a href="for_r_macros.html"><span style="color: gray;">Macros with R
+ re-entrancy forms</span></a></li>
+ </ul>
+ <h4>Requirements</h4>
+ <div> <b>Header:</b> <a href="../headers/repetition/for.html"><boost/preprocessor/repetition/for.hpp></a>
+ </div>
+ <h4>Sample Code</h4>
+ <div>
+ <pre>#include <<a href="../headers/arithmetic/dec.html">boost/preprocessor/arithmetic/dec.hpp</a>>
#include <<a href="../headers/arithmetic/inc.html">boost/preprocessor/arithmetic/inc.hpp</a>>
#include <<a href="../headers/comparison/not_equal.html">boost/preprocessor/comparison/not_equal.hpp</a>>
#include <<a href="../headers/punctuation/comma_if.html">boost/preprocessor/punctuation/comma_if.hpp</a>>
template<class, class, class, class> class T4
*/
</pre></div>
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- <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>
+ <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<br>
+ </i><i>© Copyright Edward Diener 2014</i><br>
+ </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>
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