ceph/src/boost/libs/mpl/doc/refmanual/extensible-associative-sequence.html

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  14 <div class="section" id="extensible-associative-sequence">
  15 <h1><a class="toc-backref" href="./concepts.html#id1402">Extensible Associative Sequence</a></h1>
  16 <div class="section" id="id35">
  17 <h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
  18 <p>An <a class="reference internal" href="./extensible-associative-sequence.html">Extensible Associative Sequence</a> is an <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a> that supports
  19 insertion and removal of elements. In contrast to <a class="reference internal" href="./extensible-sequence.html">Extensible Sequence</a>,
  20 <a class="reference internal" href="./extensible-associative-sequence.html">Extensible Associative Sequence</a> does not provide a mechanism for
  21 inserting an element at a specific position.</p>
  22 </div>
  23 <div class="section" id="id36">
  24 <h3><a class="subsection-title" href="#expression-requirements" name="expression-requirements">Expression requirements</a></h3>
  25 <p>In the following table and subsequent specifications, <tt class="literal"><span class="pre">s</span></tt> is an <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a>,
  26 <tt class="literal"><span class="pre">pos</span></tt> is an iterator into <tt class="literal"><span class="pre">s</span></tt>, and <tt class="literal"><span class="pre">x</span></tt> and <tt class="literal"><span class="pre">k</span></tt> are arbitrary types.</p>
  27 <p>In addition to the <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a> requirements, the following must be met:</p>
  28 <table border="1" class="docutils table">
  29 <colgroup>
  30 <col width="32%" />
  31 <col width="40%" />
  32 <col width="28%" />
  33 </colgroup>
  34 <thead valign="bottom">
  35 <tr><th class="head">Expression</th>
  36 <th class="head">Type</th>
  37 <th class="head">Complexity</th>
  38 </tr>
  39 </thead>
  40 <tbody valign="top">
  41 <tr><td><tt class="literal"><span class="pre"><a href="./insert.html" class="identifier">insert</a>&lt;s,x&gt;::type</span></tt></td>
  42 <td><a class="reference internal" href="./extensible-associative-sequence.html">Extensible Associative Sequence</a></td>
  43 <td>Amortized constant time</td>
  44 </tr>
  45 <tr><td><tt class="literal"><span class="pre"><a href="./insert.html" class="identifier">insert</a>&lt;s,pos,x&gt;::type</span></tt></td>
  46 <td><a class="reference internal" href="./extensible-associative-sequence.html">Extensible Associative Sequence</a></td>
  47 <td>Amortized constant time</td>
  48 </tr>
  49 <tr><td><tt class="literal"><span class="pre"><a href="./erase-key.html" class="identifier">erase_key</a>&lt;s,k&gt;::type</span></tt></td>
  50 <td><a class="reference internal" href="./extensible-associative-sequence.html">Extensible Associative Sequence</a></td>
  51 <td>Amortized constant time</td>
  52 </tr>
  53 <tr><td><tt class="literal"><span class="pre"><a href="./erase.html" class="identifier">erase</a>&lt;s,pos&gt;::type</span></tt></td>
  54 <td><a class="reference internal" href="./extensible-associative-sequence.html">Extensible Associative Sequence</a></td>
  55 <td>Amortized constant time</td>
  56 </tr>
  57 <tr><td><tt class="literal"><span class="pre"><a href="./clear.html" class="identifier">clear</a>&lt;s&gt;::type</span></tt></td>
  58 <td><a class="reference internal" href="./extensible-associative-sequence.html">Extensible Associative Sequence</a></td>
  59 <td>Amortized constant time</td>
  60 </tr>
  61 </tbody>
  62 </table>
  63 </div>
  64 <div class="section" id="id37">
  65 <h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
  66 <p>The semantics of an expression are defined only
  67 where they differ from, or are not defined in <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a>.</p>
  68 <table border="1" class="docutils table">
  69 <colgroup>
  70 <col width="32%" />
  71 <col width="68%" />
  72 </colgroup>
  73 <thead valign="bottom">
  74 <tr><th class="head">Expression</th>
  75 <th class="head">Semantics</th>
  76 </tr>
  77 </thead>
  78 <tbody valign="top">
  79 <tr><td><tt class="literal"><span class="pre"><a href="./insert.html" class="identifier">insert</a>&lt;s,x&gt;::type</span></tt></td>
  80 <td><p class="first">Inserts <tt class="literal"><span class="pre">x</span></tt> into <tt class="literal"><span class="pre">s</span></tt>; the resulting sequence <tt class="literal"><span class="pre">r</span></tt> is
  81 equivalent to <tt class="literal"><span class="pre">s</span></tt> except that</p>
  82 <pre class="literal-block">
  83 <a href="./at.html" class="identifier">at</a>&lt; r, <a href="./key-type.html" class="identifier">key_type</a>&lt;s,x&gt;::type &gt;::type
  84 </pre>
  85 <p class="last">is identical to <tt class="literal"><span class="pre"><a href="./value-type.html" class="identifier">value_type</a>&lt;s,x&gt;::type</span></tt>; see <a class="reference internal" href="./insert.html">insert</a>.</p>
  86 </td>
  87 </tr>
  88 <tr><td><tt class="literal"><span class="pre"><a href="./insert.html" class="identifier">insert</a>&lt;s,pos,x&gt;::type</span></tt></td>
  89 <td>Equivalent to <tt class="literal"><span class="pre"><a href="./insert.html" class="identifier">insert</a>&lt;s,x&gt;::type</span></tt>; <tt class="literal"><span class="pre">pos</span></tt> is ignored;
  90 see <a class="reference internal" href="./insert.html">insert</a>.</td>
  91 </tr>
  92 <tr><td><tt class="literal"><span class="pre"><a href="./erase-key.html" class="identifier">erase_key</a>&lt;s,k&gt;::type</span></tt></td>
  93 <td>Erases elements in <tt class="literal"><span class="pre">s</span></tt> associated with the key <tt class="literal"><span class="pre">k</span></tt>;
  94 the resulting sequence <tt class="literal"><span class="pre">r</span></tt> is equivalent to <tt class="literal"><span class="pre">s</span></tt> except
  95 that <tt class="literal"><span class="pre"><a href="./has-key.html" class="identifier">has_key</a>&lt;r,k&gt;::value</span> <span class="pre">==</span> <span class="pre">false</span></tt>; see <a class="reference internal" href="./erase-key.html">erase_key</a>.</td>
  96 </tr>
  97 <tr><td><tt class="literal"><span class="pre"><a href="./erase.html" class="identifier">erase</a>&lt;s,pos&gt;::type</span></tt></td>
  98 <td>Erases the element at a specific position; equivalent to
  99 <tt class="literal"><span class="pre"><a href="./erase-key.html" class="identifier">erase_key</a>&lt;s,</span> <span class="pre"><a href="./deref.html" class="identifier">deref</a>&lt;pos&gt;::type</span> <span class="pre">&gt;::type</span></tt>; see <a class="reference internal" href="./erase.html">erase</a>.</td>
 100 </tr>
 101 <tr><td><tt class="literal"><span class="pre"><a href="./clear.html" class="identifier">clear</a>&lt;s&gt;::type</span></tt></td>
 102 <td>An empty sequence concept-identical to <tt class="literal"><span class="pre">s</span></tt>; see
 103 <a class="reference internal" href="./clear.html">clear</a>.</td>
 104 </tr>
 105 </tbody>
 106 </table>
 107 <!-- Invariants
 108 - - - - - - - - - -
 109
 110 For any extensible associative sequence ``s`` the following invariants always hold: -->
 111 </div>
 112 <div class="section" id="id38">
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 117 </ul>
 118 <!-- * |multiset| -->
 119 </div>
 120 <div class="section" id="id39">
 121 <h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
 122 <p><a class="reference internal" href="./sequences.html">Sequences</a>, <a class="reference internal" href="./associative-sequence.html">Associative Sequence</a>, <a class="reference internal" href="./insert.html">insert</a>, <a class="reference internal" href="./erase.html">erase</a>, <a class="reference internal" href="./clear.html">clear</a></p>
 123 <!-- Sequences/Concepts//Integral Sequence Wrapper |90 -->
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