1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Get the Iterator pointing to the Begin of a Container Attribute</title> 5<link rel="stylesheet" href="../../../../../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../../../index.html" title="Spirit 2.5.8"> 8<link rel="up" href="../iterate.html" title="Extract Attribute Values to Generate Output from a Container (Karma)"> 9<link rel="prev" href="container_iterator.html" title="Determine the Type of the Iterator of a Container"> 10<link rel="next" href="end_container.html" title="Get the Iterator pointing to the End of a Container Attribute"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../../../boost.png"></td> 15<td align="center"><a href="../../../../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="container_iterator.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../iterate.html"><img src="../../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="end_container.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h5 class="title"> 27<a name="spirit.advanced.customize.iterate.begin_container"></a><a class="link" href="begin_container.html" title="Get the Iterator pointing to the Begin of a Container Attribute">Get 28 the Iterator pointing to the Begin of a Container Attribute</a> 29</h5></div></div></div> 30<h6> 31<a name="spirit.advanced.customize.iterate.begin_container.h0"></a> 32 <span class="phrase"><a name="spirit.advanced.customize.iterate.begin_container.begin_container"></a></span><a class="link" href="begin_container.html#spirit.advanced.customize.iterate.begin_container.begin_container">begin_container</a> 33 </h6> 34<p> 35 The template <code class="computeroutput"><span class="identifier">begin_container</span></code> 36 is a type used as an attribute customization point. It is invoked by 37 the <span class="emphasis"><em>Karma</em></span> repetitive generators (such as <a class="link" href="../../../karma/reference/operator/list.html" title="List Generator (a % b)">List 38 (<code class="computeroutput"><span class="special">%</span></code>)</a>, <a class="link" href="../../../karma/reference/operator/kleene.html" title="Kleene Star Generator (*a)">Kleene 39 (unary <code class="computeroutput"><span class="special">*</span></code>)</a>, <a class="link" href="../../../karma/reference/operator/plus.html" title="Plus Generator (+a)">Plus (unary <code class="computeroutput"><span class="special">+</span></code>)</a>, and <a class="link" href="../../../karma/reference/directive/repeat.html" title="Repetition Generator Directive (repeat[])">Repeat</a>) 40 in order to get an iterator pointing to the first element of the container 41 holding the attributes to generate output from. 42 </p> 43<h6> 44<a name="spirit.advanced.customize.iterate.begin_container.h1"></a> 45 <span class="phrase"><a name="spirit.advanced.customize.iterate.begin_container.module_headers"></a></span><a class="link" href="begin_container.html#spirit.advanced.customize.iterate.begin_container.module_headers">Module 46 Headers</a> 47 </h6> 48<pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">spirit</span><span class="special">/</span><span class="identifier">home</span><span class="special">/</span><span class="identifier">support</span><span class="special">/</span><span class="identifier">container</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> 49</pre> 50<p> 51 Also, see <a class="link" href="../../../structure/include.html" title="Include">Include Structure</a>. 52 </p> 53<div class="note"><table border="0" summary="Note"> 54<tr> 55<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../images/note.png"></td> 56<th align="left">Note</th> 57</tr> 58<tr><td align="left" valign="top"><p> 59 This header file does not need to be included directly by any user 60 program as it is normally included by other Spirit header files relying 61 on its content. 62 </p></td></tr> 63</table></div> 64<h6> 65<a name="spirit.advanced.customize.iterate.begin_container.h2"></a> 66 <span class="phrase"><a name="spirit.advanced.customize.iterate.begin_container.namespace"></a></span><a class="link" href="begin_container.html#spirit.advanced.customize.iterate.begin_container.namespace">Namespace</a> 67 </h6> 68<div class="informaltable"><table class="table"> 69<colgroup><col></colgroup> 70<thead><tr><th> 71 <p> 72 Name 73 </p> 74 </th></tr></thead> 75<tbody><tr><td> 76 <p> 77 <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">spirit</span><span class="special">::</span><span class="identifier">traits</span></code> 78 </p> 79 </td></tr></tbody> 80</table></div> 81<h6> 82<a name="spirit.advanced.customize.iterate.begin_container.h3"></a> 83 <span class="phrase"><a name="spirit.advanced.customize.iterate.begin_container.synopsis"></a></span><a class="link" href="begin_container.html#spirit.advanced.customize.iterate.begin_container.synopsis">Synopsis</a> 84 </h6> 85<pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">typename</span> <span class="identifier">Container</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Enable</span><span class="special">></span> 86<span class="keyword">struct</span> <span class="identifier">begin_container</span> 87<span class="special">{</span> 88 <span class="keyword">static</span> <span class="keyword">typename</span> <span class="identifier">container_iterator</span><span class="special"><</span><span class="identifier">Container</span><span class="special">>::</span><span class="identifier">type</span> 89 <span class="identifier">call</span><span class="special">(</span><span class="identifier">Container</span><span class="special">&</span> <span class="identifier">c</span><span class="special">);</span> 90<span class="special">};</span> 91</pre> 92<h6> 93<a name="spirit.advanced.customize.iterate.begin_container.h4"></a> 94 <span class="phrase"><a name="spirit.advanced.customize.iterate.begin_container.template_parameters"></a></span><a class="link" href="begin_container.html#spirit.advanced.customize.iterate.begin_container.template_parameters">Template 95 parameters</a> 96 </h6> 97<div class="informaltable"><table class="table"> 98<colgroup> 99<col> 100<col> 101<col> 102</colgroup> 103<thead><tr> 104<th> 105 <p> 106 Parameter 107 </p> 108 </th> 109<th> 110 <p> 111 Description 112 </p> 113 </th> 114<th> 115 <p> 116 Default 117 </p> 118 </th> 119</tr></thead> 120<tbody> 121<tr> 122<td> 123 <p> 124 <code class="computeroutput"><span class="identifier">Container</span></code> 125 </p> 126 </td> 127<td> 128 <p> 129 The type, <code class="computeroutput"><span class="identifier">Container</span></code> 130 for which the iterator pointing to the first element has to 131 be returned 132 </p> 133 </td> 134<td> 135 <p> 136 none 137 </p> 138 </td> 139</tr> 140<tr> 141<td> 142 <p> 143 <code class="computeroutput"><span class="identifier">Enable</span></code> 144 </p> 145 </td> 146<td> 147 <p> 148 Helper template parameter usable to selectively enable or disable 149 certain specializations of <code class="computeroutput"><span class="identifier">begin_container</span></code> 150 utilizing SFINAE (i.e. <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">enable_if</span></code> 151 or <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">disable_if</span></code>). 152 </p> 153 </td> 154<td> 155 <p> 156 <code class="computeroutput"><span class="keyword">void</span></code> 157 </p> 158 </td> 159</tr> 160</tbody> 161</table></div> 162<div class="variablelist"> 163<p class="title"><b>Notation</b></p> 164<dl class="variablelist"> 165<dt><span class="term"><code class="computeroutput"><span class="identifier">C</span></code></span></dt> 166<dd><p> 167 A container type the begin iterator needs to be returned for. 168 </p></dd> 169<dt><span class="term"><code class="computeroutput"><span class="identifier">c</span></code></span></dt> 170<dd><p> 171 An instance of a container, <code class="computeroutput"><span class="identifier">C</span></code>. 172 </p></dd> 173</dl> 174</div> 175<h6> 176<a name="spirit.advanced.customize.iterate.begin_container.h5"></a> 177 <span class="phrase"><a name="spirit.advanced.customize.iterate.begin_container.expression_semantics"></a></span><a class="link" href="begin_container.html#spirit.advanced.customize.iterate.begin_container.expression_semantics">Expression 178 Semantics</a> 179 </h6> 180<div class="informaltable"><table class="table"> 181<colgroup> 182<col> 183<col> 184</colgroup> 185<thead><tr> 186<th> 187 <p> 188 Expression 189 </p> 190 </th> 191<th> 192 <p> 193 Semantics 194 </p> 195 </th> 196</tr></thead> 197<tbody><tr> 198<td> 199 <p> 200 <code class="computeroutput"><span class="identifier">begin_container</span><span class="special"><</span><span class="identifier">C</span><span class="special">>::</span><span class="identifier">call</span><span class="special">(</span><span class="identifier">c</span><span class="special">)</span></code> 201 </p> 202 </td> 203<td> 204 <p> 205 Return the iterator usable to dereference the first element 206 of the given container, <code class="computeroutput"><span class="identifier">c</span></code>. 207 The type of the returned iterator is expected to be the same 208 as the type returned by the customization point <a class="link" href="container_iterator.html" title="Determine the Type of the Iterator of a Container"><code class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">container_iterator</span></code></a>. 209 </p> 210 </td> 211</tr></tbody> 212</table></div> 213<p> 214 The returned instance conceptually needs to be equivalent to a standard 215 forward iterator. But it does not have to expose the standardized interface. 216 If this customization point is implemented for a certain container type, 217 all related customization points need to be implemented as well (see 218 <a class="link" href="begin_container.html#spirit.advanced.customize.iterate.begin_container.related_attribute_customization_points">Related 219 Attribute Customization Points</a> below). This encapsulates the specific 220 iterator interface required for a given type. The minimal requirements 221 for a type to be exposed as an iterator in this context are: 222 </p> 223<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; "> 224<li class="listitem"> 225 it needs to be comparable for equality (see <a class="link" href="compare_iterators.html" title="Compare two Iterator pointing into a Container Attribute for Equality"><code class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">compare_iterators</span></code></a>), 226 </li> 227<li class="listitem"> 228 it needs to be incrementable (see <a class="link" href="next_iterator.html" title="Increment the Iterator pointing into a Container Attribute"><code class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">next_iterator</span></code></a>), 229 </li> 230<li class="listitem"> 231 it needs to be dereferencible (see <a class="link" href="deref_iterator.html" title="Dereference the Iterator pointing into a Container Attribute"><code class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">deref_iterator</span></code></a>). 232 </li> 233</ul></div> 234<h6> 235<a name="spirit.advanced.customize.iterate.begin_container.h6"></a> 236 <span class="phrase"><a name="spirit.advanced.customize.iterate.begin_container.predefined_specializations"></a></span><a class="link" href="begin_container.html#spirit.advanced.customize.iterate.begin_container.predefined_specializations">Predefined 237 Specializations</a> 238 </h6> 239<p> 240 <a href="http://boost-spirit.com" target="_top">Spirit</a> predefines specializations 241 of this customization point for several types. The following table lists 242 those types together with the types returned by the embedded typedef 243 <code class="computeroutput"><span class="identifier">type</span></code>: 244 </p> 245<div class="informaltable"><table class="table"> 246<colgroup> 247<col> 248<col> 249</colgroup> 250<thead><tr> 251<th> 252 <p> 253 Template Parameters 254 </p> 255 </th> 256<th> 257 <p> 258 Semantics 259 </p> 260 </th> 261</tr></thead> 262<tbody> 263<tr> 264<td> 265 <p> 266 <code class="computeroutput"><span class="identifier">C</span></code> 267 </p> 268 </td> 269<td> 270 <p> 271 Returns <code class="computeroutput"><span class="identifier">c</span><span class="special">.</span><span class="identifier">begin</span><span class="special">()</span></code>. 272 </p> 273 </td> 274</tr> 275<tr> 276<td> 277 <p> 278 <code class="computeroutput"><span class="identifier">C</span> <span class="keyword">const</span></code> 279 </p> 280 </td> 281<td> 282 <p> 283 Returns <code class="computeroutput"><span class="identifier">c</span><span class="special">.</span><span class="identifier">begin</span><span class="special">()</span></code>. 284 </p> 285 </td> 286</tr> 287<tr> 288<td> 289 <p> 290 <code class="computeroutput"><span class="identifier">unused_type</span></code> 291 </p> 292 </td> 293<td> 294 <p> 295 Returns <code class="computeroutput"><span class="special">&</span><span class="identifier">unused</span></code>. 296 </p> 297 </td> 298</tr> 299</tbody> 300</table></div> 301<h6> 302<a name="spirit.advanced.customize.iterate.begin_container.h7"></a> 303 <span class="phrase"><a name="spirit.advanced.customize.iterate.begin_container.when_to_implement"></a></span><a class="link" href="begin_container.html#spirit.advanced.customize.iterate.begin_container.when_to_implement">When 304 to implement</a> 305 </h6> 306<p> 307 The customization point <code class="computeroutput"><span class="identifier">begin_container</span></code> 308 needs to be implemented for a specific type whenever this type is to 309 be used as an attribute in place of a STL container. It is applicable 310 for generators (<span class="emphasis"><em>Spirit.Karma</em></span>) only. As a rule of 311 thumb: it has to be implemented whenever a certain type is to be passed 312 as an attribute to a generator normally exposing a STL container, <code class="computeroutput"><span class="identifier">C</span></code> and if the type does not expose the 313 interface of a STL container (i.e. <code class="computeroutput"><span class="identifier">is_container</span><span class="special"><</span><span class="identifier">C</span><span class="special">>::</span><span class="identifier">type</span></code> 314 would normally return <code class="computeroutput"><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">false_</span></code>). 315 </p> 316<h6> 317<a name="spirit.advanced.customize.iterate.begin_container.h8"></a> 318 <span class="phrase"><a name="spirit.advanced.customize.iterate.begin_container.related_attribute_customization_points"></a></span><a class="link" href="begin_container.html#spirit.advanced.customize.iterate.begin_container.related_attribute_customization_points">Related 319 Attribute Customization Points</a> 320 </h6> 321<p> 322 If this customization point is implemented, the following other customization 323 points might need to be implemented as well. 324 </p> 325<div class="informaltable"><table class="table"> 326<colgroup> 327<col> 328<col> 329</colgroup> 330<thead><tr> 331<th> 332 <p> 333 Name 334 </p> 335 </th> 336<th> 337 <p> 338 When to implement 339 </p> 340 </th> 341</tr></thead> 342<tbody> 343<tr> 344<td> 345 <p> 346 <a class="link" href="../is_container.html" title="Determine if a Type Should be Treated as a Container (Qi and Karma)"><code class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">is_container</span></code></a> 347 </p> 348 </td> 349<td> 350 <p> 351 Needs to be implemented whenever a type is to be used as a 352 container attribute in <span class="emphasis"><em>Karma</em></span>. 353 </p> 354 </td> 355</tr> 356<tr> 357<td> 358 <p> 359 <a class="link" href="container_iterator.html" title="Determine the Type of the Iterator of a Container"><code class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">container_iterator</span></code></a> 360 </p> 361 </td> 362<td> 363 <p> 364 Karma: <a class="link" href="../../../karma/reference/operator/list.html" title="List Generator (a % b)">List 365 (<code class="computeroutput"><span class="special">%</span></code>)</a>, <a class="link" href="../../../karma/reference/operator/kleene.html" title="Kleene Star Generator (*a)">Kleene (unary 366 <code class="computeroutput"><span class="special">*</span></code>)</a>, <a class="link" href="../../../karma/reference/operator/plus.html" title="Plus Generator (+a)">Plus (unary 367 <code class="computeroutput"><span class="special">+</span></code>)</a>, <a class="link" href="../../../karma/reference/directive/repeat.html" title="Repetition Generator Directive (repeat[])">Repeat</a>. 368 </p> 369 </td> 370</tr> 371<tr> 372<td> 373 <p> 374 <a class="link" href="begin_container.html" title="Get the Iterator pointing to the Begin of a Container Attribute"><code class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">begin_container</span></code></a> 375 </p> 376 </td> 377<td> 378 <p> 379 Karma: <a class="link" href="../../../karma/reference/operator/list.html" title="List Generator (a % b)">List 380 (<code class="computeroutput"><span class="special">%</span></code>)</a>, <a class="link" href="../../../karma/reference/operator/kleene.html" title="Kleene Star Generator (*a)">Kleene (unary 381 <code class="computeroutput"><span class="special">*</span></code>)</a>, <a class="link" href="../../../karma/reference/operator/plus.html" title="Plus Generator (+a)">Plus (unary 382 <code class="computeroutput"><span class="special">+</span></code>)</a>, <a class="link" href="../../../karma/reference/directive/repeat.html" title="Repetition Generator Directive (repeat[])">Repeat</a>. 383 </p> 384 </td> 385</tr> 386<tr> 387<td> 388 <p> 389 <a class="link" href="end_container.html" title="Get the Iterator pointing to the End of a Container Attribute"><code class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">end_container</span></code></a> 390 </p> 391 </td> 392<td> 393 <p> 394 Karma: <a class="link" href="../../../karma/reference/operator/list.html" title="List Generator (a % b)">List 395 (<code class="computeroutput"><span class="special">%</span></code>)</a>, <a class="link" href="../../../karma/reference/operator/kleene.html" title="Kleene Star Generator (*a)">Kleene (unary 396 <code class="computeroutput"><span class="special">*</span></code>)</a>, <a class="link" href="../../../karma/reference/operator/plus.html" title="Plus Generator (+a)">Plus (unary 397 <code class="computeroutput"><span class="special">+</span></code>)</a>, <a class="link" href="../../../karma/reference/directive/repeat.html" title="Repetition Generator Directive (repeat[])">Repeat</a>. 398 </p> 399 </td> 400</tr> 401<tr> 402<td> 403 <p> 404 <a class="link" href="deref_iterator.html" title="Dereference the Iterator pointing into a Container Attribute"><code class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">deref_iterator</span></code></a> 405 </p> 406 </td> 407<td> 408 <p> 409 Karma: <a class="link" href="../../../karma/reference/operator/list.html" title="List Generator (a % b)">List 410 (<code class="computeroutput"><span class="special">%</span></code>)</a>, <a class="link" href="../../../karma/reference/operator/kleene.html" title="Kleene Star Generator (*a)">Kleene (unary 411 <code class="computeroutput"><span class="special">*</span></code>)</a>, <a class="link" href="../../../karma/reference/operator/plus.html" title="Plus Generator (+a)">Plus (unary 412 <code class="computeroutput"><span class="special">+</span></code>)</a>, <a class="link" href="../../../karma/reference/directive/repeat.html" title="Repetition Generator Directive (repeat[])">Repeat</a>. 413 </p> 414 </td> 415</tr> 416<tr> 417<td> 418 <p> 419 <a class="link" href="next_iterator.html" title="Increment the Iterator pointing into a Container Attribute"><code class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">next_iterator</span></code></a> 420 </p> 421 </td> 422<td> 423 <p> 424 Karma: <a class="link" href="../../../karma/reference/operator/list.html" title="List Generator (a % b)">List 425 (<code class="computeroutput"><span class="special">%</span></code>)</a>, <a class="link" href="../../../karma/reference/operator/kleene.html" title="Kleene Star Generator (*a)">Kleene (unary 426 <code class="computeroutput"><span class="special">*</span></code>)</a>, <a class="link" href="../../../karma/reference/operator/plus.html" title="Plus Generator (+a)">Plus (unary 427 <code class="computeroutput"><span class="special">+</span></code>)</a>, <a class="link" href="../../../karma/reference/directive/repeat.html" title="Repetition Generator Directive (repeat[])">Repeat</a>. 428 </p> 429 </td> 430</tr> 431<tr> 432<td> 433 <p> 434 <a class="link" href="compare_iterators.html" title="Compare two Iterator pointing into a Container Attribute for Equality"><code class="computeroutput"><span class="identifier">traits</span><span class="special">::</span><span class="identifier">compare_iterators</span></code></a> 435 </p> 436 </td> 437<td> 438 <p> 439 Karma: <a class="link" href="../../../karma/reference/operator/list.html" title="List Generator (a % b)">List 440 (<code class="computeroutput"><span class="special">%</span></code>)</a>, <a class="link" href="../../../karma/reference/operator/kleene.html" title="Kleene Star Generator (*a)">Kleene (unary 441 <code class="computeroutput"><span class="special">*</span></code>)</a>, <a class="link" href="../../../karma/reference/operator/plus.html" title="Plus Generator (+a)">Plus (unary 442 <code class="computeroutput"><span class="special">+</span></code>)</a>, <a class="link" href="../../../karma/reference/directive/repeat.html" title="Repetition Generator Directive (repeat[])">Repeat</a>. 443 </p> 444 </td> 445</tr> 446</tbody> 447</table></div> 448<h6> 449<a name="spirit.advanced.customize.iterate.begin_container.h9"></a> 450 <span class="phrase"><a name="spirit.advanced.customize.iterate.begin_container.example"></a></span><a class="link" href="begin_container.html#spirit.advanced.customize.iterate.begin_container.example">Example</a> 451 </h6> 452<p> 453 For examples of how to use the customization point <code class="computeroutput"><span class="identifier">begin_container</span></code> 454 please see here: <a class="link" href="container_iterator.html#spirit.advanced.customize.iterate.container_iterator.example">embedded_container_example</a>, 455 <a class="link" href="next_iterator.html#spirit.advanced.customize.iterate.next_iterator.example">use_as_container</a>, 456 and <a class="link" href="deref_iterator.html#spirit.advanced.customize.iterate.deref_iterator.example">counter_example</a>. 457 </p> 458</div> 459<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 460<td align="left"></td> 461<td align="right"><div class="copyright-footer">Copyright © 2001-2011 Joel de Guzman, Hartmut Kaiser<p> 462 Distributed under the Boost Software License, Version 1.0. (See accompanying 463 file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) 464 </p> 465</div></td> 466</tr></table> 467<hr> 468<div class="spirit-nav"> 469<a accesskey="p" href="container_iterator.html"><img src="../../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../iterate.html"><img src="../../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../../index.html"><img src="../../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="end_container.html"><img src="../../../../../../../../doc/src/images/next.png" alt="Next"></a> 470</div> 471</body> 472</html> 473
