2020-09-17 18:25:36 -04:00
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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2002-10-03 22:13:37 +00:00
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2011-06-26 13:07:20 +00:00
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2020-09-17 18:25:36 -04:00
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<meta http-equiv="content-type" content="text/html; charset=windows-1252">
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2011-06-26 13:07:20 +00:00
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<title>BOOST_PP_TUPLE_EAT</title>
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2020-09-17 18:25:36 -04:00
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<link rel="stylesheet" type="text/css" href="../styles.css">
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2011-06-26 13:07:20 +00:00
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</head>
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<body>
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2020-09-17 18:25:36 -04:00
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<div style="margin-left: 0px;"> The <b>BOOST_PP_TUPLE_EAT</b> macro
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expands to a macro that eats a <i>tuple</i>. </div>
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<h4>Usage</h4>
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<div class="code"> <b>BOOST_PP_TUPLE_EAT</b>() <a
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href="file:///E:/Programming/VersionControl/modular-boost/libs/preprocessor/doc/topics/variadic_macros.html#VNotation"
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target="_self"><sup>(v)</sup></a><br>
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<br>
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or<br>
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<br>
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<b>BOOST_PP_TUPLE_EAT</b>(<i>size</i>) <a
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href="../topics/variadic_macros.html#VNotation" target="_self"><sup>(v)</sup></a><b></b><br>
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</div>
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<h4>Arguments</h4>
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<dl>
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<dt>size</dt>
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<dd> The size of the <i>tuple</i> to be eaten. The argument
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is ignored.<br>
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</dd>
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</dl>
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<h4>Remarks</h4>
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<div>The
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size may be left out
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completely so that the macro can be invoked as
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BOOST_PP_TUPLE_EAT(); you may get a warning from some compilers,
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but the
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functionality will still work. If you specify a size, it will be
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ignored, but the warning from some compilers will
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not occur.<br>
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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="limit_tuple.html">BOOST_PP_LIMIT_TUPLE</a></li>
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</ul>
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<h4>Requirements</h4>
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<div> <b>Header:</b> <a href="../headers/tuple/eat.html"><boost/preprocessor/tuple/eat.hpp></a>
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</div>
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<h4>Sample Code</h4>
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<div>
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<pre>#include <<a href="../headers/control/if.html">boost/preprocessor/control/if.hpp</a>><br>#include <<a href="../headers/tuple/eat.html">boost/preprocessor/tuple/eat.hpp</a>><br><br>#define OP(a, b) (a b)<br>#define MACRO(n) <a href="if.html">BOOST_PP_IF</a>(n, OP, <a href="tuple_eat.html">BOOST_PP_TUPLE_EAT</a>())(1, 2)<br><br>MACRO(0) // expands to nothing<br>MACRO(1) // expands to (1, 2)<br></pre>
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</div>
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<hr size="1">
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<div style="margin-left: 0px;"> <i><EFBFBD> Copyright <a
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href="http://www.housemarque.com" target="_top">Housemarque Oy</a>
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2002</i> <br>
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<i><EFBFBD> Copyright Paul Mensonides 2002<br>
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</i><i><EFBFBD> Copyright Edward Diener 2011,2013,2020</i><br>
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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
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1.0. (See accompanying file <a
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href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
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copy at <a href="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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2011-06-26 13:07:20 +00:00
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</body>
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2020-09-17 18:25:36 -04:00
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</html>
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