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59 lines
1.9 KiB
HTML
59 lines
1.9 KiB
HTML
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<html>
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<head>
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<title>BOOST_PP_ENUM_PARAMS</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</b> macro generates a comma-separated list of parameters.
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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</b>(<i>count</i>, <i>param</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</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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</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>param</i> ## <i>1</i>, ... <i>param</i> ## <i>count</i> - <i>1</i>
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</div>
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</div>
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<div>
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To use the <i>z</i> parameter passed from other macros that use <b>BOOST_PP_REPEAT</b>, see <b>BOOST_PP_ENUM_PARAMS_Z</b>.
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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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<h4>See Also</h4>
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<ul>
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<li><a href="enum_params_z.html">BOOST_PP_ENUM_PARAMS_Z</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/enum_params.hpp.html"><boost/preprocessor/repetition/enum_params.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/enum_params.hpp.html">boost/preprocessor/repetition/enum_params.hpp</a>>
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<a href="enum_params.html">BOOST_PP_ENUM_PARAMS</a>(3, class T) // expands to class T0, class T1, class T2
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</pre></div>
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</body>
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</html>
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