84 lines
3.1 KiB
HTML
84 lines
3.1 KiB
HTML
<html>
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<head>
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<title>BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT</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_ENUM_PARAMS_WITH_A_DEFAULT</b> macro generates a comma-separated list of parameters with a default argument.
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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_ENUM_PARAMS_WITH_A_DEFAULT</b>(<i>count</i>, <i>param</i>, <i>def</i>)
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</div>
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<h4>Arguments</h4>
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<dl>
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<dt>count</dt>
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<dd>
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The number of parameters to generate.
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Valid values range from <i>0</i> to <b>BOOST_PP_LIMIT_REPEAT</b>.
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</dd>
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<dt>param</dt>
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<dd>
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The text of the parameter.
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<b>BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT</b> concatenates numbers ranging from <i>0</i> to <i>count</i> - <i>1</i>
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to generate parameters.
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</dd>
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<dt>def</dt>
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<dd>
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The default value that trails each parameter.
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</dd>
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</dl>
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<h4>Remarks</h4>
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<div>
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This macro expands to the comma-separated sequence:
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<div>
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<i>param</i> ## <i>0</i> = <i>def</i>, <i>param</i> ## <i>1</i> = <i>def</i>, ... <i>param</i> ## <i>count</i> - <i>1</i> = <i>def</i>
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</div>
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</div>
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<div>
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Previously, this macro could not be used recursively inside <b>BOOST_PP_REPEAT</b>.
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This limitation no longer exists, as the library can automatically detect the next available repetition depth.
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</div>
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<div>
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This macro is deprecated.
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It only exists for backward compatibility.
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Use <b>BOOST_PP_ENUM_BINARY_PARAMS</b> with <b>BOOST_PP_INTERCEPT</b> instead:
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<div>
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<b>BOOST_PP_ENUM_BINARY_PARAMS</b>(<i>count</i>, <i>param</i>, = <i>def</i> <b>BOOST_PP_INTERCEPT</b>)
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</div>
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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="enum_binary_params.html">BOOST_PP_ENUM_BINARY_PARAMS</a></li>
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<li><a href="intercept.html">BOOST_PP_INTERCEPT</a></li>
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<li><a href="limit_repeat.html">BOOST_PP_LIMIT_REPEAT</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/repetition/epwad.html"><boost/preprocessor/repetition/enum_params_with_a_default.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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#include <<a href="../headers/repetition/epwad.html">boost/preprocessor/repetition/enum_params_with_a_default.hpp</a>>
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<a href="enum_params_with_a_default.html">BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT</a>(3, class T, int)
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// expands to T0 = int, T1 = int, T2 = int
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<a href="enum_binary_params.html">BOOST_PP_ENUM_BINARY_PARAMS</a>(3, class T, = int <a href="intercept.html">BOOST_PP_INTERCEPT</a>)
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// expands to T0 = int, T1 = int, T2 = int
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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><EFBFBD> Copyright <a href="http://www.housemarque.com" target="_top">Housemarque Oy</a> 2002</i>
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</br><i><EFBFBD> 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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