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97 lines
7.1 KiB
HTML
<?xml version="1.0" encoding="utf-8" ?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
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<meta name="generator" content="Docutils 0.3.6: http://docutils.sourceforge.net/" />
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<title>The MPL Reference Manual: Bidirectional Sequence</title>
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</head>
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<body class="docframe refmanual">
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<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> <a href="./random-access-sequence.html" class="navigation-link">Next</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./forward-sequence.html" class="navigation-link">Back</a> <a href="./random-access-sequence.html" class="navigation-link">Along</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./concepts.html" class="navigation-link">Up</a> <a href="../refmanual.html" class="navigation-link">Home</a></span><span class="navigation-group-separator"> | </span><span class="navigation-group"><a href="./refmanual_toc.html" class="navigation-link">Full TOC</a></span></td>
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<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>
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</tr></table><div class="header-separator"></div>
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<div class="section" id="bidirectional-sequence">
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<h1><a class="toc-backref" href="./concepts.html#id325" name="bidirectional-sequence">Bidirectional Sequence</a></h1>
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<div class="section" id="bidirectional-description">
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<h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
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<p>A <a class="reference" href="./bidirectional-sequence.html">Bidirectional Sequence</a> is a <a class="reference" href="./forward-sequence.html">Forward Sequence</a> whose iterators model
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<a class="reference" href="./bidirectional-iterator.html">Bidirectional Iterator</a>.</p>
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</div>
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<div class="section" id="refinement-of">
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<h3><a class="subsection-title" href="#refinement-of" name="refinement-of">Refinement of</a></h3>
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<p><a class="reference" href="./forward-sequence.html">Forward Sequence</a></p>
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</div>
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<div class="section" id="bidirectional-expression-requirements">
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<h3><a class="subsection-title" href="#expression-requirements" name="expression-requirements">Expression requirements</a></h3>
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<p>In addition to the requirements defined in <a class="reference" href="./forward-sequence.html">Forward Sequence</a>,
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for any <a class="reference" href="./bidirectional-sequence.html">Bidirectional Sequence</a> <tt class="literal"><span class="pre">s</span></tt> the following must be met:</p>
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<table border="1" class="table">
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<colgroup>
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<col width="30%" />
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<col width="39%" />
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<col width="30%" />
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</colgroup>
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<thead valign="bottom">
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<tr><th>Expression</th>
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<th>Type</th>
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<th>Complexity</th>
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</tr>
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</thead>
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<tbody valign="top">
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<tr><td><tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a><s>::type</span></tt></td>
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<td><a class="reference" href="./bidirectional-iterator.html">Bidirectional Iterator</a></td>
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<td>Amortized constant time</td>
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</tr>
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<tr><td><tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a><s>::type</span></tt></td>
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<td><a class="reference" href="./bidirectional-iterator.html">Bidirectional Iterator</a></td>
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<td>Amortized constant time</td>
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</tr>
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<tr><td><tt class="literal"><span class="pre"><a href="./back.html" class="identifier">back</a><s>::type</span></tt></td>
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<td>Any type</td>
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<td>Amortized constant time</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="section" id="bidirectional-expression-semantics">
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<h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
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<p>The semantics of an expression are defined only
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where they differ from, or are not defined in <a class="reference" href="./forward-sequence.html">Forward Sequence</a>.</p>
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<table border="1" class="table">
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<colgroup>
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<col width="28%" />
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<col width="72%" />
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</colgroup>
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<thead valign="bottom">
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<tr><th>Expression</th>
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<th>Semantics</th>
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</tr>
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</thead>
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<tbody valign="top">
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<tr><td><tt class="literal"><span class="pre"><a href="./back.html" class="identifier">back</a><s>::type</span></tt></td>
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<td>The last element in the sequence; see <a class="refentry reference" href="./back.html"><tt class="refentry literal"><span class="pre">back</span></tt></a>.</td>
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</tr>
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</tbody>
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</table>
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</div>
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<div class="section" id="bidirectional-models">
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<h3><a class="subsection-title" href="#models" name="models">Models</a></h3>
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<ul class="simple">
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<li><a class="refentry reference" href="./vector.html"><tt class="refentry literal"><span class="pre">vector</span></tt></a></li>
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<li><a class="refentry reference" href="./range-c.html"><tt class="refentry literal"><span class="pre">range_c</span></tt></a></li>
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</ul>
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</div>
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<div class="section" id="bidirectional-see-also">
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<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
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<p><a class="reference" href="./sequences.html">Sequences</a>, <a class="reference" href="./forward-sequence.html">Forward Sequence</a>, <a class="reference" href="./random-access-sequence.html">Random Access Sequence</a>, <a class="reference" href="./bidirectional-iterator.html">Bidirectional Iterator</a>, <a class="refentry reference" href="./begin.html"><tt class="refentry literal"><span class="pre">begin</span></tt></a> / <a class="refentry reference" href="./end.html"><tt class="refentry literal"><span class="pre">end</span></tt></a>, <a class="refentry reference" href="./back.html"><tt class="refentry literal"><span class="pre">back</span></tt></a></p>
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<!-- Sequences/Concepts//Random Access Sequence |30 -->
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