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55 lines
2.3 KiB
HTML
55 lines
2.3 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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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
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<meta name="generator" content="Docutils 0.5: http://docutils.sourceforge.net/" />
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<title>Swappable Iterator Concept</title>
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<link rel="stylesheet" href="../../../rst.css" type="text/css" />
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</head>
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<body>
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<div class="document" id="swappable-iterator-concept">
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<h1 class="title">Swappable Iterator Concept</h1>
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<!-- Copyright David Abrahams 2006. Distributed under the Boost -->
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<!-- Software License, Version 1.0. (See accompanying -->
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<!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -->
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<p>A class or built-in type <tt class="docutils literal"><span class="pre">X</span></tt> models the <em>Swappable Iterator</em> concept
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if, in addition to <tt class="docutils literal"><span class="pre">X</span></tt> being Copy Constructible, the following
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expressions are valid and respect the stated semantics.</p>
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<table border="1" class="docutils">
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<colgroup>
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<col width="37%" />
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<col width="19%" />
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<col width="43%" />
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</colgroup>
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<thead valign="bottom">
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<tr><th class="head" colspan="3">Swappable Iterator Requirements (in addition to Copy Constructible)</th>
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</tr>
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<tr><th class="head">Expression</th>
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<th class="head">Return Type</th>
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<th class="head">Postcondition</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="docutils literal"><span class="pre">iter_swap(a,</span> <span class="pre">b)</span></tt></td>
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<td><tt class="docutils literal"><span class="pre">void</span></tt></td>
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<td>the pointed to values are
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exchanged</td>
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</tr>
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</tbody>
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</table>
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<dl class="docutils">
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<dt>[<em>Note:</em> An iterator that is a model of the <em>Readable</em> and <em>Writable Iterator</em> concepts</dt>
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<dd>is also a model of <em>Swappable Iterator</em>. <em>--end note</em>]</dd>
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</dl>
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</div>
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<div class="footer">
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<hr class="footer" />
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<a class="reference external" href="SwappableIterator.rst">View document source</a>.
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Generated by <a class="reference external" href="http://docutils.sourceforge.net/">Docutils</a> from <a class="reference external" href="http://docutils.sourceforge.net/rst.html">reStructuredText</a> source.
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</div>
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</body>
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</html>
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