devn00b
/
EQ2EMu


			
				
					
						
						
							12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697
							<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="generator" content="Docutils 0.7: http://docutils.sourceforge.net/" />
<title>The MPL Reference Manual: Bidirectional Sequence</title>
<link rel="stylesheet" href="../style.css" type="text/css" />
</head>
<body class="docframe refmanual">
<table class="header"><tr class="header"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./forward-sequence.html" class="navigation-link">Prev</a>&nbsp;<a href="./random-access-sequence.html" class="navigation-link">Next</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./forward-sequence.html" class="navigation-link">Back</a>&nbsp;<a href="./random-access-sequence.html" class="navigation-link">Along</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./concepts.html" class="navigation-link">Up</a>&nbsp;<a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td>
<td class="header-group page-location"><a href="../refmanual.html" class="navigation-link">Front Page</a> / <a href="./sequences.html" class="navigation-link">Sequences</a> / <a href="./concepts.html" class="navigation-link">Concepts</a> / <a href="./bidirectional-sequence.html" class="navigation-link">Bidirectional Sequence</a></td>
</tr></table><div class="header-separator"></div>
<div class="section" id="bidirectional-sequence">
<h1><a class="toc-backref" href="./concepts.html#id1396">Bidirectional Sequence</a></h1>
<div class="section" id="id1">
<h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
<p>A <a class="reference internal" href="./bidirectional-sequence.html">Bidirectional Sequence</a> is a <a class="reference internal" href="./forward-sequence.html">Forward Sequence</a> whose iterators model
<a class="reference internal" href="./bidirectional-iterator.html">Bidirectional Iterator</a>.</p>
</div>
<div class="section" id="refinement-of">
<h3>Refinement of</h3>
<p><a class="reference internal" href="./forward-sequence.html">Forward Sequence</a></p>
</div>
<div class="section" id="id2">
<h3><a class="subsection-title" href="#expression-requirements" name="expression-requirements">Expression requirements</a></h3>
<p>In addition to the requirements defined in <a class="reference internal" href="./forward-sequence.html">Forward Sequence</a>,
for any <a class="reference internal" href="./bidirectional-sequence.html">Bidirectional Sequence</a> <tt class="literal"><span class="pre">s</span></tt> the following must be met:</p>
<table border="1" class="docutils table">
<colgroup>
<col width="30%" />
<col width="39%" />
<col width="30%" />
</colgroup>
<thead valign="bottom">
<tr><th class="head">Expression</th>
<th class="head">Type</th>
<th class="head">Complexity</th>
</tr>
</thead>
<tbody valign="top">
<tr><td><tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a>&lt;s&gt;::type</span></tt></td>
<td><a class="reference internal" href="./bidirectional-iterator.html">Bidirectional Iterator</a></td>
<td>Amortized constant time</td>
</tr>
<tr><td><tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a>&lt;s&gt;::type</span></tt></td>
<td><a class="reference internal" href="./bidirectional-iterator.html">Bidirectional Iterator</a></td>
<td>Amortized constant time</td>
</tr>
<tr><td><tt class="literal"><span class="pre"><a href="./back.html" class="identifier">back</a>&lt;s&gt;::type</span></tt></td>
<td>Any type</td>
<td>Amortized constant time</td>
</tr>
</tbody>
</table>
</div>
<div class="section" id="id3">
<h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
<p>The semantics of an expression are defined only
where they differ from, or are not defined in <a class="reference internal" href="./forward-sequence.html">Forward Sequence</a>.</p>
<table border="1" class="docutils table">
<colgroup>
<col width="28%" />
<col width="72%" />
</colgroup>
<thead valign="bottom">
<tr><th class="head">Expression</th>
<th class="head">Semantics</th>
</tr>
</thead>
<tbody valign="top">
<tr><td><tt class="literal"><span class="pre"><a href="./back.html" class="identifier">back</a>&lt;s&gt;::type</span></tt></td>
<td>The last element in the sequence; see <a class="reference internal" href="./back.html">back</a>.</td>
</tr>
</tbody>
</table>
</div>
<div class="section" id="id4">
<h3><a class="subsection-title" href="#models" name="models">Models</a></h3>
<ul class="simple">
<li><a class="reference internal" href="./vector.html">vector</a></li>
<li><a class="reference internal" href="./range-c.html">range_c</a></li>
</ul>
</div>
<div class="section" id="id5">
<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
<p><a class="reference internal" href="./sequences.html">Sequences</a>, <a class="reference internal" href="./forward-sequence.html">Forward Sequence</a>, <a class="reference internal" href="./random-access-sequence.html">Random Access Sequence</a>, <a class="reference internal" href="./bidirectional-iterator.html">Bidirectional Iterator</a>, <a class="reference internal" href="./begin.html">begin</a> / <a class="reference internal" href="./end.html">end</a>, <a class="reference internal" href="./back.html">back</a></p>
<!-- Sequences/Concepts//Random Access Sequence |30 -->
</div>
</div>

<div class="footer-separator"></div>
<table class="footer"><tr class="footer"><td class="header-group navigation-bar"><span class="navigation-group"><a href="./forward-sequence.html" class="navigation-link">Prev</a>&nbsp;<a href="./random-access-sequence.html" class="navigation-link">Next</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./forward-sequence.html" class="navigation-link">Back</a>&nbsp;<a href="./random-access-sequence.html" class="navigation-link">Along</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./concepts.html" class="navigation-link">Up</a>&nbsp;<a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator">&nbsp;|&nbsp;</span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td>
<td><div class="copyright-footer"><div class="copyright">Copyright ©  2001-2009 Aleksey Gurtovoy and David Abrahams</div>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a class="reference external" href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)</div></td></tr></table></body>
</html>