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| <div style="margin-left: 0px;"> The <b>BOOST_PP_TUPLE_POP_FRONT</b> macro |
| pops an element from the beginning of a <i>tuple</i>.</div> |
| <h4>Usage</h4> |
| <div class="code"> <b>BOOST_PP_TUPLE_POP_FRONT</b>(<i>tuple</i>) <a href="../topics/variadic_macros.html#VNotation"><sup>(v)</sup></a></div> |
| <h4>Arguments</h4> |
| <dl> |
| <dt>tuple</dt> |
| <dd> The <i>tuple</i> to pop an element from.</dd> |
| </dl> |
| <h4>Remarks</h4> |
| <div> This macro returns <i>tuple</i> after removing the first |
| element. If <i>tuple</i> has only a single element, it remains |
| unchanged since a <i>tuple </i>must have at least one element.</div> |
| <div> This macro uses <b>BOOST_PP_REPEAT</b> internally. Therefore, |
| to use the <i>z</i> parameter passed from other macros that use <b>BOOST_PP_REPEAT</b>, |
| see <b>BOOST_PP_TUPLE_POP_FRONT_Z</b> </div> |
| <h4>See Also</h4> |
| <ul> |
| <li><a href="tuple_pop_front_z.html">BOOST_PP_TUPLE_POP_FRONT_Z</a></li> |
| </ul> |
| <h4>Requirements</h4> |
| <div> <b>Header:</b> <a href="../headers/tuple/pop_front.html"><boost/preprocessor/tuple/pop_front.hpp></a> |
| </div> |
| <h4>Sample Code</h4> |
| <div> |
| <pre>#include <<a href="../headers/tuple/pop_front.html">boost/preprocessor/tuple/pop_front.hpp</a>> |
| |
| #define TUPLE (a, b, c) |
| |
| <a href="tuple_pop_front.html">BOOST_PP_TUPLE_POP_FRONT</a>(TUPLE) // expands to (b, c) |
| </pre></div> |
| <hr size="1"> |
| <div style="margin-left: 0px;"> <i>© Copyright Edward Diener 2013</i> </div> |
| <div style="margin-left: 0px;"> |
| <p><small>Distributed under the Boost Software License, Version 1.0. (See |
| accompanying file <a href="../../../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> |
| or 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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