libs/preprocessor/doc/ref/tuple_pop_back.html


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    <title>BOOST_PP_TUPLE_POP_BACK</title>
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    <div style="margin-left:  0px;"> The <b>BOOST_PP_TUPLE_POP_BACK</b> macro
      pops an element from the end of an <i>tuple</i>.</div>
    <h4>Usage</h4>
    <div class="code"> <b>BOOST_PP_TUPLE_POP_BACK</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 style="background-color: white;"> This macro returns <i>tuple</i>
      after removing the last element.&nbsp; If <i>tuple</i> has only a single
      element, it remains unchanged since a&nbsp;<i>tuple </i>must have at
      least one element.</div>
    <div> This macro uses <b>BOOST_PP_REPEAT</b> internally.&nbsp; 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_BACK_Z</b> </div>
    <h4>See Also</h4>
    <ul>
      <li><a href="tuple_pop_back_z.html">BOOST_PP_TUPLE_POP_BACK_Z</a></li>
    </ul>
    <h4>Requirements</h4>
    <div> <b>Header:</b> &nbsp;<a href="../headers/tuple/pop_back.html">&lt;boost/preprocessor/tuple/pop_back.hpp&gt;</a>
    </div>
    <h4>Sample Code</h4>
    <div>
      <pre>#include &lt;<a href="../headers/tuple/pop_back.html">boost/preprocessor/tuple/pop_back.hpp</a>&gt;

#define TUPLE (a, b, c)

<a href="tuple_pop_back.html">BOOST_PP_TUPLE_POP_BACK</a>(TUPLE) // expands to (a, b)
</pre></div>
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    <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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