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26 <div class="titlepage"><div><div><h2 class="title" style="clear: both">
27 <a name="core.alloc_construct"></a><a class="link" href="alloc_construct.html" title="alloc_construct, alloc_destroy">alloc_construct, alloc_destroy</a>
28 </h2></div></div></div>
29 <div class="toc"><dl class="toc">
30 <dt><span class="section"><a href="alloc_construct.html#core.alloc_construct.overview">Overview</a></span></dt>
31 <dt><span class="section"><a href="alloc_construct.html#core.alloc_construct.example">Example</a></span></dt>
32 <dt><span class="section"><a href="alloc_construct.html#core.alloc_construct.reference">Reference</a></span></dt>
33 <dt><span class="section"><a href="alloc_construct.html#core.alloc_construct.compatibility">Compatibility</a></span></dt>
34 <dt><span class="section"><a href="alloc_construct.html#core.alloc_construct.acknowledgments">Acknowledgments</a></span></dt>
35 </dl></div>
36 <div class="simplesect">
37 <div class="titlepage"><div><div><h3 class="title">
38 <a name="idm46687077784320"></a>Authors</h3></div></div></div>
39 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "><li class="listitem">
40           Glen Fernandes
41         </li></ul></div>
42 </div>
43 <div class="section">
44 <div class="titlepage"><div><div><h3 class="title">
45 <a name="core.alloc_construct.overview"></a><a class="link" href="alloc_construct.html#core.alloc_construct.overview" title="Overview">Overview</a>
46 </h3></div></div></div>
47 <p>
48         The header &lt;boost/core/alloc_construct.hpp&gt; provides function templates
49         <code class="computeroutput"><span class="identifier">alloc_construct</span></code>, <code class="computeroutput"><span class="identifier">alloc_construct_n</span></code>, <code class="computeroutput"><span class="identifier">alloc_destroy</span></code>,
50         and <code class="computeroutput"><span class="identifier">alloc_destroy_n</span></code> for allocator
51         aware and exception safe construction and destruction of objects and arrays.
52       </p>
53 </div>
54 <div class="section">
55 <div class="titlepage"><div><div><h3 class="title">
56 <a name="core.alloc_construct.example"></a><a class="link" href="alloc_construct.html#core.alloc_construct.example" title="Example">Example</a>
57 </h3></div></div></div>
58 <p>
59         The following example allocates storage for an array of <code class="computeroutput"><span class="identifier">n</span></code>
60         elements of <code class="computeroutput"><span class="identifier">T</span></code> using an allocator
61         <code class="computeroutput"><span class="identifier">a</span></code> and constructs <code class="computeroutput"><span class="identifier">T</span></code> elements in that storage. If any exception
62         was thrown during construction of an element, the constructed elements are
63         destroyed in reverse order.
64       </p>
65 <pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">&gt;</span>
66 <span class="keyword">auto</span> <span class="identifier">create</span><span class="special">(</span><span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">n</span><span class="special">)</span>
67 <span class="special">{</span>
68     <span class="keyword">auto</span> <span class="identifier">p</span> <span class="special">=</span> <span class="identifier">a</span><span class="special">.</span><span class="identifier">allocate</span><span class="special">(</span><span class="identifier">n</span><span class="special">);</span>
69     <span class="keyword">try</span> <span class="special">{</span>
70         <span class="identifier">boost</span><span class="special">::</span><span class="identifier">alloc_construct_n</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">to_address</span><span class="special">(</span><span class="identifier">p</span><span class="special">),</span> <span class="identifier">n</span><span class="special">);</span>
71     <span class="special">}</span> <span class="keyword">catch</span> <span class="special">(...)</span> <span class="special">{</span>
72         <span class="identifier">a</span><span class="special">.</span><span class="identifier">deallocate</span><span class="special">(</span><span class="identifier">p</span><span class="special">,</span> <span class="identifier">n</span><span class="special">);</span>
73         <span class="keyword">throw</span><span class="special">;</span>
74     <span class="special">}</span>
75     <span class="keyword">return</span> <span class="identifier">p</span><span class="special">;</span>
76 <span class="special">}</span>
77 </pre>
78 </div>
79 <div class="section">
80 <div class="titlepage"><div><div><h3 class="title">
81 <a name="core.alloc_construct.reference"></a><a class="link" href="alloc_construct.html#core.alloc_construct.reference" title="Reference">Reference</a>
82 </h3></div></div></div>
83 <pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span>
84
85 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span>
86 <span class="keyword">void</span> <span class="identifier">alloc_destroy</span><span class="special">(</span><span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">p</span><span class="special">);</span>
87
88 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span>
89 <span class="keyword">void</span> <span class="identifier">alloc_destroy_n</span><span class="special">(</span><span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">n</span><span class="special">);</span>
90
91 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Args</span><span class="special">&gt;</span>
92 <span class="keyword">void</span> <span class="identifier">alloc_construct</span><span class="special">(</span><span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">Args</span><span class="special">&amp;&amp;...</span> <span class="identifier">args</span><span class="special">);</span>
93
94 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span>
95 <span class="keyword">void</span> <span class="identifier">alloc_construct_n</span><span class="special">(</span><span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">n</span><span class="special">);</span>
96
97 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span>
98 <span class="keyword">void</span> <span class="identifier">alloc_construct_n</span><span class="special">(</span><span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">n</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">l</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">m</span><span class="special">);</span>
99
100 <span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">I</span><span class="special">&gt;</span>
101 <span class="keyword">void</span> <span class="identifier">alloc_construct_n</span><span class="special">(</span><span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">n</span><span class="special">,</span> <span class="identifier">I</span> <span class="identifier">begin</span><span class="special">);</span>
102
103 <span class="special">}</span> <span class="comment">/* boost */</span>
104 </pre>
105 <div class="section">
106 <div class="titlepage"><div><div><h4 class="title">
107 <a name="core.alloc_construct.reference.functions"></a><a class="link" href="alloc_construct.html#core.alloc_construct.reference.functions" title="Functions">Functions</a>
108 </h4></div></div></div>
109 <div class="variablelist">
110 <p class="title"><b></b></p>
111 <dl class="variablelist">
112 <dt><span class="term"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">void</span> <span class="identifier">alloc_destroy</span><span class="special">(</span><span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">p</span><span class="special">);</span></code></span></dt>
113 <dd><div class="variablelist">
114 <p class="title"><b></b></p>
115 <dl class="variablelist">
116 <dt><span class="term">Requires</span></dt>
117 <dd><p>
118                       <code class="computeroutput"><span class="identifier">A</span></code> is an <span class="emphasis"><em>Allocator</em></span>
119                     </p></dd>
120 <dt><span class="term">Effects</span></dt>
121 <dd><p>
122                       <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator_traits</span><span class="special">&lt;</span><span class="identifier">A</span><span class="special">&gt;::</span><span class="identifier">destroy</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span>
123                       <span class="identifier">p</span><span class="special">)</span></code>.
124                     </p></dd>
125 </dl>
126 </div></dd>
127 <dt><span class="term"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">void</span> <span class="identifier">alloc_destroy_n</span><span class="special">(</span><span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span>
128             <span class="identifier">n</span><span class="special">);</span></code></span></dt>
129 <dd><div class="variablelist">
130 <p class="title"><b></b></p>
131 <dl class="variablelist">
132 <dt><span class="term">Requires</span></dt>
133 <dd><p>
134                       <code class="computeroutput"><span class="identifier">A</span></code> is an <span class="emphasis"><em>Allocator</em></span>
135                     </p></dd>
136 <dt><span class="term">Effects</span></dt>
137 <dd><p>
138                       Destroys each <code class="computeroutput"><span class="identifier">i</span></code>-th
139                       element in reverse order by calling <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator_traits</span><span class="special">&lt;</span><span class="identifier">A</span><span class="special">&gt;::</span><span class="identifier">destroy</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">p</span><span class="special">[</span><span class="identifier">i</span><span class="special">])</span></code>.
140                     </p></dd>
141 </dl>
142 </div></dd>
143 <dt><span class="term"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">Args</span><span class="special">&gt;</span> <span class="keyword">void</span> <span class="identifier">alloc_construct</span><span class="special">(</span><span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">Args</span><span class="special">&amp;&amp;...</span>
144             <span class="identifier">args</span><span class="special">);</span></code></span></dt>
145 <dd><div class="variablelist">
146 <p class="title"><b></b></p>
147 <dl class="variablelist">
148 <dt><span class="term">Requires</span></dt>
149 <dd><p>
150                       <code class="computeroutput"><span class="identifier">A</span></code> is an <span class="emphasis"><em>Allocator</em></span>
151                     </p></dd>
152 <dt><span class="term">Effects</span></dt>
153 <dd><p>
154                       <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator_traits</span><span class="special">&lt;</span><span class="identifier">A</span><span class="special">&gt;::</span><span class="identifier">construct</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span>
155                       <span class="identifier">p</span><span class="special">,</span>
156                       <span class="identifier">std</span><span class="special">::</span><span class="identifier">forward</span><span class="special">&lt;</span><span class="identifier">Args</span><span class="special">&gt;(</span><span class="identifier">args</span><span class="special">)...)</span></code>.
157                     </p></dd>
158 </dl>
159 </div></dd>
160 <dt><span class="term"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">void</span> <span class="identifier">alloc_construct_n</span><span class="special">(</span><span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span>
161             <span class="identifier">n</span><span class="special">);</span></code></span></dt>
162 <dd><div class="variablelist">
163 <p class="title"><b></b></p>
164 <dl class="variablelist">
165 <dt><span class="term">Requires</span></dt>
166 <dd><p>
167                       <code class="computeroutput"><span class="identifier">A</span></code> is an <span class="emphasis"><em>Allocator</em></span>
168                     </p></dd>
169 <dt><span class="term">Effects</span></dt>
170 <dd><p>
171                       Constructs each <code class="computeroutput"><span class="identifier">i</span></code>-th
172                       element in order by calling <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator_traits</span><span class="special">&lt;</span><span class="identifier">A</span><span class="special">&gt;::</span><span class="identifier">construct</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">p</span><span class="special">[</span><span class="identifier">i</span><span class="special">])</span></code>.
173                     </p></dd>
174 <dt><span class="term">Remarks</span></dt>
175 <dd><p>
176                       If an exception is thrown destroys each already constructed
177                       <code class="computeroutput"><span class="identifier">j</span></code>-th element
178                       in reverse order by calling <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator_traits</span><span class="special">&lt;</span><span class="identifier">A</span><span class="special">&gt;::</span><span class="identifier">destroy</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">p</span><span class="special">[</span><span class="identifier">j</span><span class="special">])</span></code>.
179                     </p></dd>
180 </dl>
181 </div></dd>
182 <dt><span class="term"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">T</span><span class="special">&gt;</span> <span class="keyword">void</span> <span class="identifier">alloc_construct_n</span><span class="special">(</span><span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span>
183             <span class="identifier">n</span><span class="special">,</span>
184             <span class="keyword">const</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">l</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span>
185             <span class="identifier">m</span><span class="special">);</span></code></span></dt>
186 <dd><div class="variablelist">
187 <p class="title"><b></b></p>
188 <dl class="variablelist">
189 <dt><span class="term">Requires</span></dt>
190 <dd><p>
191                       <code class="computeroutput"><span class="identifier">A</span></code> is an <span class="emphasis"><em>Allocator</em></span>
192                     </p></dd>
193 <dt><span class="term">Effects</span></dt>
194 <dd><p>
195                       Constructs each <code class="computeroutput"><span class="identifier">i</span></code>-th
196                       element in order by calling <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator_traits</span><span class="special">&lt;</span><span class="identifier">A</span><span class="special">&gt;::</span><span class="identifier">construct</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">p</span><span class="special">[</span><span class="identifier">i</span><span class="special">],</span>
197                       <span class="identifier">l</span><span class="special">[</span><span class="identifier">i</span> <span class="special">%</span>
198                       <span class="identifier">m</span><span class="special">])</span></code>.
199                     </p></dd>
200 <dt><span class="term">Remarks</span></dt>
201 <dd><p>
202                       If an exception is thrown destroys each already constructed
203                       <code class="computeroutput"><span class="identifier">j</span></code>-th element
204                       in reverse order by calling <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator_traits</span><span class="special">&lt;</span><span class="identifier">A</span><span class="special">&gt;::</span><span class="identifier">destroy</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">p</span><span class="special">[</span><span class="identifier">j</span><span class="special">])</span></code>.
205                     </p></dd>
206 </dl>
207 </div></dd>
208 <dt><span class="term"><code class="computeroutput"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">class</span> <span class="identifier">A</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">T</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">I</span><span class="special">&gt;</span> <span class="keyword">void</span> <span class="identifier">alloc_construct_n</span><span class="special">(</span><span class="identifier">A</span><span class="special">&amp;</span> <span class="identifier">a</span><span class="special">,</span> <span class="identifier">T</span><span class="special">*</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">size_t</span> <span class="identifier">n</span><span class="special">,</span> <span class="identifier">I</span> <span class="identifier">begin</span><span class="special">);</span></code></span></dt>
209 <dd><div class="variablelist">
210 <p class="title"><b></b></p>
211 <dl class="variablelist">
212 <dt><span class="term">Requires</span></dt>
213 <dd><div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
214 <li class="listitem">
215                           <code class="computeroutput"><span class="identifier">A</span></code> is an
216                           <span class="emphasis"><em>Allocator</em></span>
217                         </li>
218 <li class="listitem">
219                           <code class="computeroutput"><span class="identifier">I</span></code> is an
220                           <span class="emphasis"><em>InputIterator</em></span>
221                         </li>
222 </ul></div></dd>
223 <dt><span class="term">Effects</span></dt>
224 <dd>
225                       Constructs each <code class="computeroutput"><span class="identifier">i</span></code>-th
226                       element in order by calling <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator_traits</span><span class="special">&lt;</span><span class="identifier">A</span><span class="special">&gt;::</span><span class="identifier">construct</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">p</span><span class="special">[</span><span class="identifier">i</span><span class="special">],</span>
227                       <span class="special">*</span><span class="identifier">begin</span><span class="special">++])</span></code>.
228                     </dd>
229 <dt><span class="term">Remarks</span></dt>
230 <dd><p>
231                       If an exception is thrown destroys each already constructed
232                       <code class="computeroutput"><span class="identifier">j</span></code>-th element
233                       in reverse order by calling <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator_traits</span><span class="special">&lt;</span><span class="identifier">A</span><span class="special">&gt;::</span><span class="identifier">destroy</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span> <span class="special">&amp;</span><span class="identifier">p</span><span class="special">[</span><span class="identifier">j</span><span class="special">])</span></code>.
234                     </p></dd>
235 </dl>
236 </div></dd>
237 </dl>
238 </div>
239 </div>
240 </div>
241 <div class="section">
242 <div class="titlepage"><div><div><h3 class="title">
243 <a name="core.alloc_construct.compatibility"></a><a class="link" href="alloc_construct.html#core.alloc_construct.compatibility" title="Compatibility">Compatibility</a>
244 </h3></div></div></div>
245 <p>
246         When <code class="computeroutput"><span class="identifier">BOOST_NO_CXX11_ALLOCATOR</span></code>
247         is defined, and the C++11 allocator model is not supported, these functions
248         invoke constructors and destructors directly without going through the supplied
249         allocator.
250       </p>
251 </div>
252 <div class="section">
253 <div class="titlepage"><div><div><h3 class="title">
254 <a name="core.alloc_construct.acknowledgments"></a><a class="link" href="alloc_construct.html#core.alloc_construct.acknowledgments" title="Acknowledgments">Acknowledgments</a>
255 </h3></div></div></div>
256 <p>
257         Glen Fernandes originally implemented this functionality in Boost.Smart_Ptr
258         and later moved these functions to Boost.Core for use in other Boost libraries,
259         such as Boost.Multi_Array and Boost.Histogram.
260       </p>
261 </div>
262 </div>
263 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
264 <td align="left"></td>
265 <td align="right"><div class="copyright-footer">Copyright &#169; 2014 Peter Dimov<br>Copyright &#169; 2014 Glen Fernandes<br>Copyright &#169; 2014 Andrey Semashev<p>
266         Distributed under the <a href="http://boost.org/LICENSE_1_0.txt" target="_top">Boost
267         Software License, Version 1.0</a>.
268       </p>
269 </div></td>
270 </tr></table>
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