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| 6 | <meta name="generator" content="Docutils 0.3.6: http://docutils.sourceforge.net/" /> |
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| 7 | <title>Readable Iterator Concept</title> |
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| 8 | <link rel="stylesheet" href="default.css" type="text/css" /> |
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| 9 | </head> |
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| 10 | <body> |
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| 11 | <h1 class="title">Readable Iterator Concept</h1> |
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| 12 | <div class="document" id="readable-iterator-concept"> |
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| 13 | <p>A class or built-in type <tt class="literal"><span class="pre">X</span></tt> models the <em>Readable Iterator</em> concept |
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| 14 | for value type <tt class="literal"><span class="pre">T</span></tt> if, in addition to <tt class="literal"><span class="pre">X</span></tt> being Assignable and |
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| 15 | Copy Constructible, the following expressions are valid and respect |
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| 16 | the stated semantics. <tt class="literal"><span class="pre">U</span></tt> is the type of any specified member of |
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| 17 | type <tt class="literal"><span class="pre">T</span></tt>.</p> |
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| 18 | <table border="1" class="table"> |
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| 19 | <colgroup> |
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| 20 | <col width="28%" /> |
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| 21 | <col width="20%" /> |
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| 22 | <col width="52%" /> |
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| 23 | </colgroup> |
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| 24 | <thead valign="bottom"> |
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| 25 | <tr><th colspan="3">Readable Iterator Requirements (in addition to Assignable and Copy Constructible)</th> |
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| 26 | </tr> |
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| 27 | <tr><th>Expression</th> |
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| 28 | <th>Return Type</th> |
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| 29 | <th>Note/Precondition</th> |
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| 30 | </tr> |
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| 31 | </thead> |
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| 32 | <tbody valign="top"> |
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| 33 | <tr><td><tt class="literal"><span class="pre">iterator_traits<X>::value_type</span></tt></td> |
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| 34 | <td><tt class="literal"><span class="pre">T</span></tt></td> |
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| 35 | <td>Any non-reference, |
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| 36 | non-cv-qualified type</td> |
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| 37 | </tr> |
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| 38 | <tr><td><tt class="literal"><span class="pre">*a</span></tt></td> |
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| 39 | <td>Convertible to <tt class="literal"><span class="pre">T</span></tt></td> |
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| 40 | <td><dl class="first last"> |
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| 41 | <dt>pre: <tt class="literal"><span class="pre">a</span></tt> is dereferenceable. If <tt class="literal"><span class="pre">a</span> <span class="pre">==</span> <span class="pre">b</span></tt> then <tt class="literal"><span class="pre">*a</span></tt></dt> |
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| 42 | <dd>is equivalent to <tt class="literal"><span class="pre">*b</span></tt>.</dd> |
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| 43 | </dl> |
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| 44 | </td> |
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| 45 | </tr> |
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| 46 | <tr><td><tt class="literal"><span class="pre">a->m</span></tt></td> |
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| 47 | <td><tt class="literal"><span class="pre">U&</span></tt></td> |
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| 48 | <td>pre: <tt class="literal"><span class="pre">pre:</span> <span class="pre">(*a).m</span></tt> is well-defined. Equivalent to <tt class="literal"><span class="pre">(*a).m</span></tt>.</td> |
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| 49 | </tr> |
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| 50 | </tbody> |
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| 51 | </table> |
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| 52 | </div> |
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| 53 | <hr class="footer" /> |
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| 54 | <div class="footer"> |
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| 55 | <a class="reference" href="ReadableIterator.rst">View document source</a>. |
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| 56 | Generated by <a class="reference" href="http://docutils.sourceforge.net/">Docutils</a> from <a class="reference" href="http://docutils.sourceforge.net/rst.html">reStructuredText</a> source. |
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| 57 | </div> |
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| 58 | </body> |
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| 59 | </html> |
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