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