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- <h4>Tuples</h4>
- <div> A <i>tuple</i> is a simple comma-separated list of elements inside
- parenthesis. For example, </div>
- <div class="code"> (<i>a</i>, <i>b</i>, <i>c</i>) </div>
- <div> ...is a <i>tuple</i> of <i>3</i> elements--<i>a</i>, <i>b</i>, and
- <i>c</i>.<br>
- <br>
- A <i>tuple </i>cannot be empty. The notation '()' as a <i>tuple </i>is
- a single element <i>tuple </i>of size 1, where the element is empty. </div>
- <div> <i>Tuples</i> are fast and easy to use. With variadic macro
- support it is not necessary to know the size of a <i>tuple; </i>without
- variadic macro support all access to <i>tuples</i> requires
- knowledge of its size. Use a <i>tuple </i>instead of an <i>array</i> if
- your compiler supports variadic macros, since a <i>tuple </i>has all of
- the functionality as an <i>array </i>and is easier syntactically to use.
- The only functionality an <i>array </i>has which a <i>tuple </i>does
- not have is that an <i>array </i>can be empty whereas a <i>tuple </i>cannot
- be empty.</div>
- <div> Elements of a <i>tuple</i> can be extracted with <b>BOOST_PP_TUPLE_ELEM</b>.
- </div>
- <h4>Primitives</h4>
- <ul>
- <li><a href="../ref/tuple_elem.html">BOOST_PP_TUPLE_ELEM</a></li>
- </ul>
- <hr size="1">
- <div style="margin-left: 0px;"> <i>© Copyright <a href="http://www.housemarque.com"
- target="_top">Housemarque Oy</a> 2002</i> <br>
- <i>© Copyright Paul Mensonides 2002</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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