| <html> |
| <head> |
| <title>BOOST_PP_ITERATION_DEPTH</title> |
| <link rel="stylesheet" type="text/css" href="../styles.css"> |
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| <div style="margin-left: 0px;"> |
| The <b>BOOST_PP_ITERATION_DEPTH</b> macro expands to the current <i>file-iteration</i> depth. |
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| <h4>Usage</h4> |
| <div class="code"> |
| <b>BOOST_PP_ITERATION_DEPTH</b>() |
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| <h4>Remarks</h4> |
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| If a <i>file-iteration</i> is not in progress, this macro expands to <i>0</i>. |
| Otherwise, it expands to the current depth of <i>file-iteration</i>. |
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| <h4>See Also</h4> |
| <ul> |
| <li><a href="frame_iteration.html">BOOST_PP_FRAME_ITERATION</a></li> |
| <li><a href="relative_iteration.html">BOOST_PP_RELATIVE_ITERATION</a></li> |
| </ul> |
| <h4>Requirements</h4> |
| <div> |
| <b>Header:</b> <a href="../headers/iteration/iterate.html"><boost/preprocessor/iteration/iterate.hpp></a> |
| </div> |
| <h4>Sample Code</h4> |
| <div><pre> |
| // file.h |
| #if !<a href="is_iterating.html">BOOST_PP_IS_ITERATING</a> |
| |
| #ifndef FILE_H_ |
| #define FILE_H_ |
| |
| #include <<a href="../headers/iteration/iterate.html">boost/preprocessor/iteration/iterate.hpp</a>> |
| |
| #define <a href="iteration_params_x.html">BOOST_PP_ITERATION_PARAMS_1</a> (3, (1, 3, "file.h")) |
| #include <a href="iterate.html">BOOST_PP_ITERATE</a>() |
| |
| #endif |
| |
| #elif <a href="iteration_depth.html">BOOST_PP_ITERATION_DEPTH</a>() == 1 |
| |
| + depth <a href="iteration_depth.html">BOOST_PP_ITERATION_DEPTH</a>() |
| // ... |
| |
| #define <a href="iteration_params_x.html">BOOST_PP_ITERATION_PARAMS_2</a> \ |
| (3, (1, <a href="iteration.html">BOOST_PP_ITERATION</a>(), "file.h")) \ |
| /**/ |
| |
| #include <a href="iterate.html">BOOST_PP_ITERATE</a>() |
| |
| #elif <a href="iteration_depth.html">BOOST_PP_ITERATION_DEPTH</a>() == 2 |
| |
| - depth <a href="iteration_depth.html">BOOST_PP_ITERATION_DEPTH</a>() |
| // ... |
| |
| #endif |
| </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> |
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