53 lines
1.6 KiB
HTML
53 lines
1.6 KiB
HTML
<html>
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<head>
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<title>BOOST_PP_LPAREN</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_LPAREN</b> macro expands to a left parenthesis.
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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_LPAREN</b>()
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</div>
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<h4>Remarks</h4>
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<div>
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The preprocessor interprets parentheses as delimiters in macro invocations.
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Because of this, parentheses require special handling.
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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="rparen.html">BOOST_PP_RPAREN</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/punctuation/paren.html"><boost/preprocessor/punctuation/paren.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/punctuation/paren.html">boost/preprocessor/punctuation/paren.hpp</a>>
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#define X(x) x
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#define MACRO(p, x) X p x )
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MACRO(<a href="lparen.html">BOOST_PP_LPAREN</a>(), abc) // expands to abc
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#define Y(x)
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MACRO((10) Y <a href="lparen.html">BOOST_PP_LPAREN</a>(), result) // expands to 10
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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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