<html> <head> <title>BOOST_PP_TUPLE_EAT</title> <link rel="stylesheet" type="text/css" href="../styles.css"> </head> <body> <div style="margin-left: 0px;"> The <b>BOOST_PP_TUPLE_EAT</b> macro expands to a macro that eats a <i>tuple</i> of the specified size. </div> <h4>Usage</h4> <div class="code"> <b>BOOST_PP_TUPLE_EAT</b>(<i>size</i>) </div> <h4>Arguments</h4> <dl> <dt>size</dt> <dd> The size of the <i>tuple</i> to be eaten. Valid <i>tuple</i> sizes range from <i>0</i> to <b>BOOST_PP_LIMIT_TUPLE</b>. </dd> </dl> <h4>Remarks</h4> <div> The <i>size</i> argument must be the actual size of the <i>tuple</i>. </div> <h4>See Also</h4> <ul> <li><a href="limit_tuple.html">BOOST_PP_LIMIT_TUPLE</a></li> </ul> <h4>Requirements</h4> <div> <b>Header:</b> <a href="../headers/tuple/eat.hpp.html"><boost/preprocessor/tuple/eat.hpp></a> </div> <h4>Sample Code</h4> <div><pre> #include <<a href="../headers/control/if.hpp.html">boost/preprocessor/control/if.hpp</a>> #include <<a href="../headers/tuple/eat.hpp.html">boost/preprocessor/tuple/eat.hpp</a>> #define OP(a, b) (a b) #define MACRO(n) <a href="if.html">BOOST_PP_IF</a>(n, OP, <a href="tuple_eat.html">BOOST_PP_TUPLE_EAT</a>(2))(1, 2) MACRO(0) // expands to nothing MACRO(1) // expands to (1, 2) </pre></div> </body> </html>
