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16</tr></table><div class="header-separator"></div>
17<div class="section" id="vector">
18<h1><a class="toc-backref" href="./classes.html#id335" name="vector">vector</a></h1>
19<div class="section" id="vector-description">
20<h3><a class="subsection-title" href="#description" name="description">Description</a></h3>
21<p><tt class="literal"><span class="pre"><a href="./vector.html" class="identifier">vector</a></span></tt> is a <a class="reference" href="./variadic-sequence.html">variadic</a>, <a class="reference" href="./random-access-sequence.html">random access</a>, <a class="reference" href="./extensible-sequence.html">extensible</a> sequence of types that
22supports constant-time insertion and removal of elements at both ends, and
23linear-time insertion and removal of elements in the middle. On compilers that
24support the <tt class="literal"><span class="pre">typeof</span></tt> extension, <tt class="literal"><span class="pre"><a href="./vector.html" class="identifier">vector</a></span></tt> is the simplest and in many cases the
25most efficient sequence.</p>
26</div>
27<div class="section" id="header">
28<h3><a class="subsection-title" href="#header" name="header">Header</a></h3>
29<table border="1" class="table">
30<colgroup>
31<col width="26%" />
32<col width="74%" />
33</colgroup>
34<thead valign="bottom">
35<tr><th>Sequence form</th>
36<th>Header</th>
37</tr>
38</thead>
39<tbody valign="top">
40<tr><td>Variadic</td>
41<td><tt class="literal"><span class="pre">#include &lt;<a href="../../../../boost/mpl/vector.hpp" class="header">boost/mpl/vector.hpp</a>&gt;</span></tt></td>
42</tr>
43<tr><td>Numbered</td>
44<td><tt class="literal"><span class="pre">#include &lt;boost/mpl/vector/vector</span></tt><em>n</em><tt class="literal"><span class="pre">.hpp&gt;</span></tt></td>
45</tr>
46</tbody>
47</table>
48</div>
49<div class="section" id="model-of">
50<h3><a class="subsection-title" href="#model-of" name="model-of">Model of</a></h3>
51<ul class="simple">
52<li><a class="reference" href="./variadic-sequence.html">Variadic Sequence</a></li>
53<li><a class="reference" href="./random-access-sequence.html">Random Access Sequence</a></li>
54<li><a class="reference" href="./extensible-sequence.html">Extensible Sequence</a></li>
55<li><a class="reference" href="./back-extensible-sequence.html">Back Extensible Sequence</a></li>
56<li><a class="reference" href="./front-extensible-sequence.html">Front Extensible Sequence</a></li>
57</ul>
58</div>
59<div class="section" id="vector-expression-semantics">
60<h3><a class="subsection-title" href="#expression-semantics" name="expression-semantics">Expression semantics</a></h3>
61<p>In the following table, <tt class="literal"><span class="pre">v</span></tt> is an instance of <tt class="literal"><span class="pre"><a href="./vector.html" class="identifier">vector</a></span></tt>, <tt class="literal"><span class="pre">pos</span></tt> and <tt class="literal"><span class="pre">last</span></tt> are iterators
62into <tt class="literal"><span class="pre">v</span></tt>, <tt class="literal"><span class="pre">r</span></tt> is a <a class="reference" href="./forward-sequence.html">Forward Sequence</a>, <tt class="literal"><span class="pre">n</span></tt> is an <a class="reference" href="./integral-constant.html">Integral Constant</a>, and <tt class="literal"><span class="pre">x</span></tt> and
63<em>t</em><sub>1</sub>,<em>t</em><sub>2</sub>,... <em>t</em><sub>n</sub> are arbitrary types.</p>
64<table border="1" class="table">
65<colgroup>
66<col width="40%" />
67<col width="60%" />
68</colgroup>
69<thead valign="bottom">
70<tr><th>Expression</th>
71<th>Semantics</th>
72</tr>
73</thead>
74<tbody valign="top">
75<tr><td><pre class="first last literal-block">
76<a href="./vector.html" class="identifier">vector</a>&lt;<em>t</em><sub>1</sub>,<em>t</em><sub>2</sub>,... <em>t</em><sub>n</sub>&gt;
77<a href="./vector.html" class="identifier">vector</a><em>n</em>&lt;<em>t</em><sub>1</sub>,<em>t</em><sub>2</sub>,... <em>t</em><sub>n</sub>&gt;
78</pre>
79</td>
80<td><tt class="literal"><span class="pre"><a href="./vector.html" class="identifier">vector</a></span></tt> of elements <em>t</em><sub>1</sub>,<em>t</em><sub>2</sub>,... <em>t</em><sub>n</sub>; see
81<a class="reference" href="./variadic-sequence.html">Variadic Sequence</a>.</td>
82</tr>
83<tr><td><pre class="first last literal-block">
84<a href="./vector.html" class="identifier">vector</a>&lt;<em>t</em><sub>1</sub>,<em>t</em><sub>2</sub>,... <em>t</em><sub>n</sub>&gt;::type
85<a href="./vector.html" class="identifier">vector</a><em>n</em>&lt;<em>t</em><sub>1</sub>,<em>t</em><sub>2</sub>,... <em>t</em><sub>n</sub>&gt;::type
86</pre>
87</td>
88<td>Identical to <tt class="literal"><span class="pre"><a href="./vector.html" class="identifier">vector</a></span></tt><em>n</em><tt class="literal"><span class="pre">&lt;</span></tt><em>t</em><sub>1</sub>,<em>t</em><sub>2</sub>,... <em>t</em><sub>n</sub><tt class="literal"><span class="pre">&gt;</span></tt>;
89see <a class="reference" href="./variadic-sequence.html">Variadic Sequence</a>.</td>
90</tr>
91<tr><td><tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a>&lt;v&gt;::type</span></tt></td>
92<td>An iterator pointing to the beginning of <tt class="literal"><span class="pre">v</span></tt>;
93see <a class="reference" href="./random-access-sequence.html">Random Access Sequence</a>.</td>
94</tr>
95<tr><td><tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a>&lt;v&gt;::type</span></tt></td>
96<td>An iterator pointing to the end of <tt class="literal"><span class="pre">v</span></tt>;
97see <a class="reference" href="./random-access-sequence.html">Random Access Sequence</a>.</td>
98</tr>
99<tr><td><tt class="literal"><span class="pre"><a href="./size.html" class="identifier">size</a>&lt;v&gt;::type</span></tt></td>
100<td>The size of <tt class="literal"><span class="pre">v</span></tt>; see <a class="reference" href="./random-access-sequence.html">Random Access Sequence</a>.</td>
101</tr>
102<tr><td><tt class="literal"><span class="pre"><a href="./empty.html" class="identifier">empty</a>&lt;v&gt;::type</span></tt></td>
103<td>A boolean <a class="reference" href="./integral-constant.html">Integral Constant</a> <tt class="literal"><span class="pre">c</span></tt> such that
104<tt class="literal"><span class="pre">c::value</span> <span class="pre">==</span> <span class="pre">true</span></tt> if and only if the sequence is empty;
105see <a class="reference" href="./random-access-sequence.html">Random Access Sequence</a>.</td>
106</tr>
107<tr><td><tt class="literal"><span class="pre"><a href="./front.html" class="identifier">front</a>&lt;v&gt;::type</span></tt></td>
108<td>The first element in <tt class="literal"><span class="pre">v</span></tt>; see
109<a class="reference" href="./random-access-sequence.html">Random Access Sequence</a>.</td>
110</tr>
111<tr><td><tt class="literal"><span class="pre"><a href="./back.html" class="identifier">back</a>&lt;v&gt;::type</span></tt></td>
112<td>The last element in <tt class="literal"><span class="pre">v</span></tt>; see
113<a class="reference" href="./random-access-sequence.html">Random Access Sequence</a>.</td>
114</tr>
115<tr><td><tt class="literal"><span class="pre"><a href="./at.html" class="identifier">at</a>&lt;v,n&gt;::type</span></tt></td>
116<td>The <tt class="literal"><span class="pre">n</span></tt>th element from the beginning of <tt class="literal"><span class="pre">v</span></tt>; see
117<a class="reference" href="./random-access-sequence.html">Random Access Sequence</a>.</td>
118</tr>
119<tr><td><tt class="literal"><span class="pre"><a href="./insert.html" class="identifier">insert</a>&lt;v,pos,x&gt;::type</span></tt></td>
120<td>A new <tt class="literal"><span class="pre"><a href="./vector.html" class="identifier">vector</a></span></tt> of following elements:
121[<tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a>&lt;v&gt;::type</span></tt>, <tt class="literal"><span class="pre">pos</span></tt>), <tt class="literal"><span class="pre">x</span></tt>,
122[<tt class="literal"><span class="pre">pos</span></tt>, <tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a>&lt;v&gt;::type</span></tt>); see <a class="reference" href="./extensible-sequence.html">Extensible Sequence</a>.</td>
123</tr>
124<tr><td><tt class="literal"><span class="pre"><a href="./insert-range.html" class="identifier">insert_range</a>&lt;v,pos,r&gt;::type</span></tt></td>
125<td>A new <tt class="literal"><span class="pre"><a href="./vector.html" class="identifier">vector</a></span></tt> of following elements:
126[<tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a>&lt;v&gt;::type</span></tt>, <tt class="literal"><span class="pre">pos</span></tt>),
127[<tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a>&lt;r&gt;::type</span></tt>, <tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a>&lt;r&gt;::type</span></tt>)
128[<tt class="literal"><span class="pre">pos</span></tt>, <tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a>&lt;v&gt;::type</span></tt>); see <a class="reference" href="./extensible-sequence.html">Extensible Sequence</a>.</td>
129</tr>
130<tr><td><tt class="literal"><span class="pre"><a href="./erase.html" class="identifier">erase</a>&lt;v,pos&gt;::type</span></tt></td>
131<td>A new <tt class="literal"><span class="pre"><a href="./vector.html" class="identifier">vector</a></span></tt> of following elements:
132[<tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a>&lt;v&gt;::type</span></tt>, <tt class="literal"><span class="pre">pos</span></tt>),
133[<tt class="literal"><span class="pre"><a href="./next.html" class="identifier">next</a>&lt;pos&gt;::type</span></tt>, <tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a>&lt;v&gt;::type</span></tt>); see
134<a class="reference" href="./extensible-sequence.html">Extensible Sequence</a>.</td>
135</tr>
136<tr><td><tt class="literal"><span class="pre"><a href="./erase.html" class="identifier">erase</a>&lt;v,pos,last&gt;::type</span></tt></td>
137<td>A new <tt class="literal"><span class="pre"><a href="./vector.html" class="identifier">vector</a></span></tt> of following elements:
138[<tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a>&lt;v&gt;::type</span></tt>, <tt class="literal"><span class="pre">pos</span></tt>),
139[<tt class="literal"><span class="pre">last</span></tt>, <tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a>&lt;v&gt;::type</span></tt>); see <a class="reference" href="./extensible-sequence.html">Extensible Sequence</a>.</td>
140</tr>
141<tr><td><tt class="literal"><span class="pre"><a href="./clear.html" class="identifier">clear</a>&lt;v&gt;::type</span></tt></td>
142<td>An empty <tt class="literal"><span class="pre"><a href="./vector.html" class="identifier">vector</a></span></tt>; see <a class="reference" href="./extensible-sequence.html">Extensible Sequence</a>.</td>
143</tr>
144<tr><td><tt class="literal"><span class="pre"><a href="./push-back.html" class="identifier">push_back</a>&lt;v,x&gt;::type</span></tt></td>
145<td>A new <tt class="literal"><span class="pre"><a href="./vector.html" class="identifier">vector</a></span></tt> of following elements:
146[<tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a>&lt;v&gt;::type</span></tt>, <tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a>&lt;v&gt;::type</span></tt>), <tt class="literal"><span class="pre">x</span></tt>;
147see <a class="reference" href="./back-extensible-sequence.html">Back Extensible Sequence</a>.</td>
148</tr>
149<tr><td><tt class="literal"><span class="pre"><a href="./pop-back.html" class="identifier">pop_back</a>&lt;v&gt;::type</span></tt></td>
150<td>A new <tt class="literal"><span class="pre"><a href="./vector.html" class="identifier">vector</a></span></tt> of following elements:
151[<tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a>&lt;v&gt;::type</span></tt>, <tt class="literal"><span class="pre"><a href="./prior.html" class="identifier">prior</a>&lt;</span> <span class="pre"><a href="./end.html" class="identifier">end</a>&lt;v&gt;::type</span> <span class="pre">&gt;::type</span></tt>);
152see <a class="reference" href="./back-extensible-sequence.html">Back Extensible Sequence</a>.</td>
153</tr>
154<tr><td><tt class="literal"><span class="pre"><a href="./push-front.html" class="identifier">push_front</a>&lt;v,x&gt;::type</span></tt></td>
155<td>A new <tt class="literal"><span class="pre"><a href="./vector.html" class="identifier">vector</a></span></tt> of following elements:
156[<tt class="literal"><span class="pre"><a href="./begin.html" class="identifier">begin</a>&lt;v&gt;::type</span></tt>, <tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a>&lt;v&gt;::type</span></tt>), <tt class="literal"><span class="pre">x</span></tt>; see <a class="reference" href="./front-extensible-sequence.html">Front Extensible Sequence</a>.</td>
157</tr>
158<tr><td><tt class="literal"><span class="pre"><a href="./pop-front.html" class="identifier">pop_front</a>&lt;v&gt;::type</span></tt></td>
159<td>A new <tt class="literal"><span class="pre"><a href="./vector.html" class="identifier">vector</a></span></tt> of following elements:
160[<tt class="literal"><span class="pre"><a href="./next.html" class="identifier">next</a>&lt;</span> <span class="pre"><a href="./begin.html" class="identifier">begin</a>&lt;v&gt;::type</span> <span class="pre">&gt;::type</span></tt>, <tt class="literal"><span class="pre"><a href="./end.html" class="identifier">end</a>&lt;v&gt;::type</span></tt>);
161see <a class="reference" href="./front-extensible-sequence.html">Front Extensible Sequence</a>.</td>
162</tr>
163</tbody>
164</table>
165</div>
166<div class="section" id="example">
167<h3><a class="subsection-title" href="#example" name="example">Example</a></h3>
168<pre class="literal-block">
169typedef <a href="./vector.html" class="identifier">vector</a>&lt;float,double,long double&gt; floats;
170typedef <a href="./push-back.html" class="identifier">push_back</a>&lt;floats,int&gt;::type types;
171
172<a href="./assert.html" class="identifier">BOOST_MPL_ASSERT</a>(( is_same&lt; <a href="./at-c.html" class="identifier">at_c</a>&lt;types,3&gt;::type, int > ));
173</pre>
174</div>
175<div class="section" id="vector-see-also">
176<h3><a class="subsection-title" href="#see-also" name="see-also">See also</a></h3>
177<p><a class="reference" href="./sequences.html">Sequences</a>, <a class="reference" href="./variadic-sequence.html">Variadic Sequence</a>, <a class="reference" href="./random-access-sequence.html">Random Access Sequence</a>, <a class="reference" href="./extensible-sequence.html">Extensible Sequence</a>, <a class="refentry reference" href="./vector-c.html"><tt class="refentry literal"><span class="pre">vector_c</span></tt></a>, <a class="refentry reference" href="./list.html"><tt class="refentry literal"><span class="pre">list</span></tt></a></p>
178<!-- modtime: November 15, 2004 01:17:03 +0000 -->
179<!-- Sequences/Classes//list |20 -->
180</div>
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