74 lines
2.3 KiB
HTML
74 lines
2.3 KiB
HTML
<html>
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<head>
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<title>BOOST_PP_ITERATION_DEPTH</title>
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<link rel="stylesheet" type="text/css" href="../styles.css">
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</head>
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<body>
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<div style="margin-left: 0px;">
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The <b>BOOST_PP_ITERATION_DEPTH</b> macro expands to the current <i>file-iteration</i> depth.
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</div>
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<h4>Usage</h4>
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<div class="code">
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<b>BOOST_PP_ITERATION_DEPTH</b>()
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</div>
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<h4>Remarks</h4>
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<div>
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If a <i>file-iteration</i> is not in progress, this macro expands to <i>0</i>.
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Otherwise, it expands to the current depth of <i>file-iteration</i>.
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</div>
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<h4>See Also</h4>
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<ul>
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<li><a href="frame_iteration.html">BOOST_PP_FRAME_ITERATION</a></li>
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<li><a href="relative_iteration.html">BOOST_PP_RELATIVE_ITERATION</a></li>
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</ul>
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<h4>Requirements</h4>
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<div>
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<b>Header:</b> <a href="../headers/iteration/iterate.html"><boost/preprocessor/iteration/iterate.hpp></a>
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</div>
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<h4>Sample Code</h4>
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<div><pre>
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// file.h
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#if !<a href="is_iterating.html">BOOST_PP_IS_ITERATING</a>
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#ifndef FILE_H_
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#define FILE_H_
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#include <<a href="../headers/iteration/iterate.html">boost/preprocessor/iteration/iterate.hpp</a>>
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#define <a href="iteration_params_x.html">BOOST_PP_ITERATION_PARAMS_1</a> (3, (1, 3, "file.h"))
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#include <a href="iterate.html">BOOST_PP_ITERATE</a>()
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#endif
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#elif <a href="iteration_depth.html">BOOST_PP_ITERATION_DEPTH</a>() == 1
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+ depth <a href="iteration_depth.html">BOOST_PP_ITERATION_DEPTH</a>()
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// ...
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#define <a href="iteration_params_x.html">BOOST_PP_ITERATION_PARAMS_2</a> \
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(3, (1, <a href="iteration.html">BOOST_PP_ITERATION</a>(), "file.h")) \
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/**/
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#include <a href="iterate.html">BOOST_PP_ITERATE</a>()
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#elif <a href="iteration_depth.html">BOOST_PP_ITERATION_DEPTH</a>() == 2
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- depth <a href="iteration_depth.html">BOOST_PP_ITERATION_DEPTH</a>()
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// ...
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#endif
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</pre></div>
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<hr size="1">
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<div style="margin-left: 0px;">
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<i>© Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i>
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</br><i>© Copyright Paul Mensonides 2002</i>
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</div>
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<div style="margin-left: 0px;">
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<p><small>Distributed under the Boost Software License, Version 1.0. (See
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accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
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copy at <a href=
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"http://www.boost.org/LICENSE_1_0.txt">www.boost.org/LICENSE_1_0.txt</a>)</small></p>
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</div>
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</body>
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</html>
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