forked from boostorg/iterator
52 lines
2.1 KiB
HTML
52 lines
2.1 KiB
HTML
|
<?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 0.3.1: http://docutils.sourceforge.net/" />
|
||
|
|
<title>Lvalue Iterator Concept</title>
|
||
|
|
<link rel="stylesheet" href="default.css" type="text/css" />
|
||
|
|
</head>
|
||
|
|
<body>
|
||
|
|
<div class="document" id="lvalue-iterator-concept">
|
||
|
|
<h1 class="title">Lvalue Iterator Concept</h1>
|
||
|
|
<p>The <em>Lvalue Iterator</em> concept adds the requirement that the return
|
||
|
|
type of <tt class="literal"><span class="pre">operator*</span></tt> type be a reference to the value type of the
|
||
|
|
iterator.</p>
|
||
|
|
<table border class="table">
|
||
|
|
<colgroup>
|
||
|
|
<col width="22%" />
|
||
|
|
<col width="19%" />
|
||
|
|
<col width="59%" />
|
||
|
|
</colgroup>
|
||
|
|
<thead valign="bottom">
|
||
|
|
<tr><th colspan="3">Lvalue Iterator Requirements</th>
|
||
|
|
</tr>
|
||
|
|
<tr><th>Expression</th>
|
||
|
|
<th>Return Type</th>
|
||
|
|
<th>Note/Assertion</th>
|
||
|
|
</tr>
|
||
|
|
</thead>
|
||
|
|
<tbody valign="top">
|
||
|
|
<tr><td><tt class="literal"><span class="pre">*a</span></tt></td>
|
||
|
|
<td><tt class="literal"><span class="pre">T&</span></tt></td>
|
||
|
|
<td><tt class="literal"><span class="pre">T</span></tt> is <em>cv</em>
|
||
|
|
<tt class="literal"><span class="pre">iterator_traits<X>::value_type</span></tt>
|
||
|
|
where <em>cv</em> is an optional
|
||
|
|
cv-qualification.
|
||
|
|
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> is
|
||
|
|
equivalent to <tt class="literal"><span class="pre">*b</span></tt>.</td>
|
||
|
|
</tr>
|
||
|
|
</tbody>
|
||
|
|
</table>
|
||
|
|
</div>
|
||
|
|
<hr class="footer" />
|
||
|
|
<div class="footer">
|
||
|
|
<a class="reference" href="LvalueIterator.rst">View document source</a>.
|
||
|
|
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.
|
||
|
|
</div>
|
||
|
|
</body>
|
||
|
|
</html>
|