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| 6 | <meta name="generator" content="Docutils 0.5: http://docutils.sourceforge.net/" /> |
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| 7 | <title>Lvalue Iterator Concept</title> |
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| 8 | <link rel="stylesheet" href="../../../rst.css" type="text/css" /> |
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| 9 | </head> |
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| 10 | <body> |
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| 11 | <div class="document" id="lvalue-iterator-concept"> |
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| 12 | <h1 class="title">Lvalue Iterator Concept</h1> |
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| 13 | |
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| 14 | <!-- Copyright David Abrahams 2006. Distributed under the Boost --> |
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| 15 | <!-- Software License, Version 1.0. (See accompanying --> |
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| 16 | <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) --> |
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| 17 | <p>The <em>Lvalue Iterator</em> concept adds the requirement that the return |
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| 18 | type of <tt class="docutils literal"><span class="pre">operator*</span></tt> type be a reference to the value type of the |
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| 19 | iterator.</p> |
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| 20 | <table border="1" class="docutils"> |
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| 21 | <colgroup> |
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| 22 | <col width="22%" /> |
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| 23 | <col width="19%" /> |
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| 24 | <col width="59%" /> |
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| 25 | </colgroup> |
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| 26 | <thead valign="bottom"> |
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| 27 | <tr><th class="head" colspan="3">Lvalue Iterator Requirements</th> |
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| 28 | </tr> |
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| 29 | <tr><th class="head">Expression</th> |
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| 30 | <th class="head">Return Type</th> |
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| 31 | <th class="head">Note/Assertion</th> |
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| 32 | </tr> |
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| 33 | </thead> |
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| 34 | <tbody valign="top"> |
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| 35 | <tr><td><tt class="docutils literal"><span class="pre">*a</span></tt></td> |
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| 36 | <td><tt class="docutils literal"><span class="pre">T&</span></tt></td> |
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| 37 | <td><tt class="docutils literal"><span class="pre">T</span></tt> is <em>cv</em> |
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| 38 | <tt class="docutils literal"><span class="pre">iterator_traits<X>::value_type</span></tt> |
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| 39 | where <em>cv</em> is an optional |
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| 40 | cv-qualification. |
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| 41 | pre: <tt class="docutils literal"><span class="pre">a</span></tt> is |
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| 42 | dereferenceable. If <tt class="docutils literal"><span class="pre">a</span> |
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| 43 | <span class="pre">==</span> <span class="pre">b</span></tt> then <tt class="docutils literal"><span class="pre">*a</span></tt> is |
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| 44 | equivalent to <tt class="docutils literal"><span class="pre">*b</span></tt>.</td> |
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| 45 | </tr> |
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| 46 | </tbody> |
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| 47 | </table> |
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| 48 | </div> |
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| 49 | <div class="footer"> |
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| 50 | <hr class="footer" /> |
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| 51 | <a class="reference external" href="LvalueIterator.rst">View document source</a>. |
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| 52 | 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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| 53 | |
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| 54 | </div> |
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