docs/reference/html/gi-GIStructInfo.html

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  18                   <a href="#gi-GIStructInfo.description" class="shortcut">Description</a></span>
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  25 <div class="refentry">
  26 <a name="gi-GIStructInfo"></a><div class="titlepage"></div>
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  28 <td valign="top">
  29 <h2><span class="refentrytitle"><a name="gi-GIStructInfo.top_of_page"></a>GIStructInfo</span></h2>
  30 <p>GIStructInfo — Struct representing a C structure</p>
  31 </td>
  32 <td class="gallery_image" valign="top" align="right"></td>
  33 </tr></table></div>
  34 <div class="refsect1">
  35 <a name="gi-GIStructInfo.functions"></a><h2>Functions</h2>
  36 <div class="informaltable"><table width="100%" border="0">
  37 <colgroup>
  38 <col width="150px" class="functions_return">
  39 <col class="functions_name">
  40 </colgroup>
  41 <tbody>
  42 <tr>
  43 <td class="define_keyword">#define</td>
  44 <td class="function_name">
  45 <a class="link" href="gi-GIStructInfo.html#GI-IS-STRUCT-INFO:CAPS" title="GI_IS_STRUCT_INFO()">GI_IS_STRUCT_INFO</a><span class="c_punctuation">()</span>
  46 </td>
  47 </tr>
  48 <tr>
  49 <td class="function_type">
  50 <span class="returnvalue">gsize</span>
  51 </td>
  52 <td class="function_name">
  53 <a class="link" href="gi-GIStructInfo.html#g-struct-info-get-alignment" title="g_struct_info_get_alignment ()">g_struct_info_get_alignment</a> <span class="c_punctuation">()</span>
  54 </td>
  55 </tr>
  56 <tr>
  57 <td class="function_type">
  58 <span class="returnvalue">gsize</span>
  59 </td>
  60 <td class="function_name">
  61 <a class="link" href="gi-GIStructInfo.html#g-struct-info-get-size" title="g_struct_info_get_size ()">g_struct_info_get_size</a> <span class="c_punctuation">()</span>
  62 </td>
  63 </tr>
  64 <tr>
  65 <td class="function_type">
  66 <span class="returnvalue">gboolean</span>
  67 </td>
  68 <td class="function_name">
  69 <a class="link" href="gi-GIStructInfo.html#g-struct-info-is-gtype-struct" title="g_struct_info_is_gtype_struct ()">g_struct_info_is_gtype_struct</a> <span class="c_punctuation">()</span>
  70 </td>
  71 </tr>
  72 <tr>
  73 <td class="function_type">
  74 <span class="returnvalue">gboolean</span>
  75 </td>
  76 <td class="function_name">
  77 <a class="link" href="gi-GIStructInfo.html#g-struct-info-is-foreign" title="g_struct_info_is_foreign ()">g_struct_info_is_foreign</a> <span class="c_punctuation">()</span>
  78 </td>
  79 </tr>
  80 <tr>
  81 <td class="function_type">
  82 <span class="returnvalue">gint</span>
  83 </td>
  84 <td class="function_name">
  85 <a class="link" href="gi-GIStructInfo.html#g-struct-info-get-n-fields" title="g_struct_info_get_n_fields ()">g_struct_info_get_n_fields</a> <span class="c_punctuation">()</span>
  86 </td>
  87 </tr>
  88 <tr>
  89 <td class="function_type">
  90 <a class="link" href="gi-GIFieldInfo.html#GIFieldInfo" title="GIFieldInfo"><span class="returnvalue">GIFieldInfo</span></a> *
  91 </td>
  92 <td class="function_name">
  93 <a class="link" href="gi-GIStructInfo.html#g-struct-info-get-field" title="g_struct_info_get_field ()">g_struct_info_get_field</a> <span class="c_punctuation">()</span>
  94 </td>
  95 </tr>
  96 <tr>
  97 <td class="function_type">
  98 <span class="returnvalue">gint</span>
  99 </td>
 100 <td class="function_name">
 101 <a class="link" href="gi-GIStructInfo.html#g-struct-info-get-n-methods" title="g_struct_info_get_n_methods ()">g_struct_info_get_n_methods</a> <span class="c_punctuation">()</span>
 102 </td>
 103 </tr>
 104 <tr>
 105 <td class="function_type">
 106 <a class="link" href="gi-GIFunctionInfo.html#GIFunctionInfo" title="GIFunctionInfo"><span class="returnvalue">GIFunctionInfo</span></a> *
 107 </td>
 108 <td class="function_name">
 109 <a class="link" href="gi-GIStructInfo.html#g-struct-info-get-method" title="g_struct_info_get_method ()">g_struct_info_get_method</a> <span class="c_punctuation">()</span>
 110 </td>
 111 </tr>
 112 <tr>
 113 <td class="function_type">
 114 <a class="link" href="gi-GIFunctionInfo.html#GIFunctionInfo" title="GIFunctionInfo"><span class="returnvalue">GIFunctionInfo</span></a> *
 115 </td>
 116 <td class="function_name">
 117 <a class="link" href="gi-GIStructInfo.html#g-struct-info-find-method" title="g_struct_info_find_method ()">g_struct_info_find_method</a> <span class="c_punctuation">()</span>
 118 </td>
 119 </tr>
 120 </tbody>
 121 </table></div>
 122 </div>
 123 <div class="refsect1">
 124 <a name="gi-GIStructInfo.other"></a><h2>Types and Values</h2>
 125 <div class="informaltable"><table width="100%" border="0">
 126 <colgroup>
 127 <col width="150px" class="name">
 128 <col class="description">
 129 </colgroup>
 130 <tbody><tr>
 131 <td class="typedef_keyword">typedef</td>
 132 <td class="function_name"><a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo">GIStructInfo</a></td>
 133 </tr></tbody>
 134 </table></div>
 135 </div>
 136 <div class="refsect1">
 137 <a name="gi-GIStructInfo.description"></a><h2>Description</h2>
 138 <p>GIStructInfo represents a generic C structure type.</p>
 139 <p>A structure has methods and fields.</p>
 140 <div class="refsect1">
 141 <a name="gi-giobjectinfo.struct-hierarchy"></a><h2>Struct hierarchy</h2>
 142 <pre class="synopsis">
 143   <a class="link" href="gi-GIBaseInfo.html" title="GIBaseInfo">GIBaseInfo</a>
 144    +----<a class="link" href="gi-GIRegisteredTypeInfo.html" title="GIRegisteredTypeInfo">GIRegisteredTypeInfo</a>
 145          +----GIStructInfo
 146 </pre>
 147 </div>
 148 </div>
 149 <div class="refsect1">
 150 <a name="gi-GIStructInfo.functions_details"></a><h2>Functions</h2>
 151 <div class="refsect2">
 152 <a name="GI-IS-STRUCT-INFO:CAPS"></a><h3>GI_IS_STRUCT_INFO()</h3>
 153 <pre class="programlisting">#define             GI_IS_STRUCT_INFO(info)</pre>
 154 <p>Checks if <em class="parameter"><code>info</code></em>
 155  is a <a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a>.</p>
 156 <div class="refsect3">
 157 <a name="id-1.4.2.13.6.2.5"></a><h4>Parameters</h4>
 158 <div class="informaltable"><table width="100%" border="0">
 159 <colgroup>
 160 <col width="150px" class="parameters_name">
 161 <col class="parameters_description">
 162 <col width="200px" class="parameters_annotations">
 163 </colgroup>
 164 <tbody><tr>
 165 <td class="parameter_name"><p>info</p></td>
 166 <td class="parameter_description"><p>an info structure</p></td>
 167 <td class="parameter_annotations"> </td>
 168 </tr></tbody>
 169 </table></div>
 170 </div>
 171 </div>
 172 <hr>
 173 <div class="refsect2">
 174 <a name="g-struct-info-get-alignment"></a><h3>g_struct_info_get_alignment ()</h3>
 175 <pre class="programlisting"><span class="returnvalue">gsize</span>
 176 g_struct_info_get_alignment (<em class="parameter"><code><a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a> *info</code></em>);</pre>
 177 <p>Obtain the required alignment of the structure.</p>
 178 <div class="refsect3">
 179 <a name="id-1.4.2.13.6.3.5"></a><h4>Parameters</h4>
 180 <div class="informaltable"><table width="100%" border="0">
 181 <colgroup>
 182 <col width="150px" class="parameters_name">
 183 <col class="parameters_description">
 184 <col width="200px" class="parameters_annotations">
 185 </colgroup>
 186 <tbody><tr>
 187 <td class="parameter_name"><p>info</p></td>
 188 <td class="parameter_description"><p>a <a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a></p></td>
 189 <td class="parameter_annotations"> </td>
 190 </tr></tbody>
 191 </table></div>
 192 </div>
 193 <div class="refsect3">
 194 <a name="id-1.4.2.13.6.3.6"></a><h4>Returns</h4>
 195 <p> required alignment in bytes</p>
 196 <p></p>
 197 </div>
 198 </div>
 199 <hr>
 200 <div class="refsect2">
 201 <a name="g-struct-info-get-size"></a><h3>g_struct_info_get_size ()</h3>
 202 <pre class="programlisting"><span class="returnvalue">gsize</span>
 203 g_struct_info_get_size (<em class="parameter"><code><a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a> *info</code></em>);</pre>
 204 <p>Obtain the total size of the structure.</p>
 205 <div class="refsect3">
 206 <a name="id-1.4.2.13.6.4.5"></a><h4>Parameters</h4>
 207 <div class="informaltable"><table width="100%" border="0">
 208 <colgroup>
 209 <col width="150px" class="parameters_name">
 210 <col class="parameters_description">
 211 <col width="200px" class="parameters_annotations">
 212 </colgroup>
 213 <tbody><tr>
 214 <td class="parameter_name"><p>info</p></td>
 215 <td class="parameter_description"><p>a <a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a></p></td>
 216 <td class="parameter_annotations"> </td>
 217 </tr></tbody>
 218 </table></div>
 219 </div>
 220 <div class="refsect3">
 221 <a name="id-1.4.2.13.6.4.6"></a><h4>Returns</h4>
 222 <p> size of the structure in bytes</p>
 223 <p></p>
 224 </div>
 225 </div>
 226 <hr>
 227 <div class="refsect2">
 228 <a name="g-struct-info-is-gtype-struct"></a><h3>g_struct_info_is_gtype_struct ()</h3>
 229 <pre class="programlisting"><span class="returnvalue">gboolean</span>
 230 g_struct_info_is_gtype_struct (<em class="parameter"><code><a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a> *info</code></em>);</pre>
 231 <p>Return true if this structure represents the "class structure" for some
 232 <span class="type">GObject</span> or <a href="/home/rico/jhbuild/install/share/gtk-doc/html/gobject/GTypeModule.html"><span class="type">GInterface</span></a>.  This function is mainly useful to hide this kind of structure
 233 from generated public APIs.</p>
 234 <div class="refsect3">
 235 <a name="id-1.4.2.13.6.5.5"></a><h4>Parameters</h4>
 236 <div class="informaltable"><table width="100%" border="0">
 237 <colgroup>
 238 <col width="150px" class="parameters_name">
 239 <col class="parameters_description">
 240 <col width="200px" class="parameters_annotations">
 241 </colgroup>
 242 <tbody><tr>
 243 <td class="parameter_name"><p>info</p></td>
 244 <td class="parameter_description"><p>a <a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a></p></td>
 245 <td class="parameter_annotations"> </td>
 246 </tr></tbody>
 247 </table></div>
 248 </div>
 249 <div class="refsect3">
 250 <a name="id-1.4.2.13.6.5.6"></a><h4>Returns</h4>
 251 <p> <code class="literal">TRUE</code> if this is a class struct, <code class="literal">FALSE</code> otherwise</p>
 252 <p></p>
 253 </div>
 254 </div>
 255 <hr>
 256 <div class="refsect2">
 257 <a name="g-struct-info-is-foreign"></a><h3>g_struct_info_is_foreign ()</h3>
 258 <pre class="programlisting"><span class="returnvalue">gboolean</span>
 259 g_struct_info_is_foreign (<em class="parameter"><code><a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a> *info</code></em>);</pre>
 260 <p>TODO</p>
 261 <div class="refsect3">
 262 <a name="id-1.4.2.13.6.6.5"></a><h4>Parameters</h4>
 263 <div class="informaltable"><table width="100%" border="0">
 264 <colgroup>
 265 <col width="150px" class="parameters_name">
 266 <col class="parameters_description">
 267 <col width="200px" class="parameters_annotations">
 268 </colgroup>
 269 <tbody><tr>
 270 <td class="parameter_name"><p>info</p></td>
 271 <td class="parameter_description"><p>TODO</p></td>
 272 <td class="parameter_annotations"> </td>
 273 </tr></tbody>
 274 </table></div>
 275 </div>
 276 <div class="refsect3">
 277 <a name="id-1.4.2.13.6.6.6"></a><h4>Returns</h4>
 278 <p> TODO</p>
 279 <p></p>
 280 </div>
 281 </div>
 282 <hr>
 283 <div class="refsect2">
 284 <a name="g-struct-info-get-n-fields"></a><h3>g_struct_info_get_n_fields ()</h3>
 285 <pre class="programlisting"><span class="returnvalue">gint</span>
 286 g_struct_info_get_n_fields (<em class="parameter"><code><a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a> *info</code></em>);</pre>
 287 <p>Obtain the number of fields this structure has.</p>
 288 <div class="refsect3">
 289 <a name="id-1.4.2.13.6.7.5"></a><h4>Parameters</h4>
 290 <div class="informaltable"><table width="100%" border="0">
 291 <colgroup>
 292 <col width="150px" class="parameters_name">
 293 <col class="parameters_description">
 294 <col width="200px" class="parameters_annotations">
 295 </colgroup>
 296 <tbody><tr>
 297 <td class="parameter_name"><p>info</p></td>
 298 <td class="parameter_description"><p>a <a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a></p></td>
 299 <td class="parameter_annotations"> </td>
 300 </tr></tbody>
 301 </table></div>
 302 </div>
 303 <div class="refsect3">
 304 <a name="id-1.4.2.13.6.7.6"></a><h4>Returns</h4>
 305 <p> number of fields</p>
 306 <p></p>
 307 </div>
 308 </div>
 309 <hr>
 310 <div class="refsect2">
 311 <a name="g-struct-info-get-field"></a><h3>g_struct_info_get_field ()</h3>
 312 <pre class="programlisting"><a class="link" href="gi-GIFieldInfo.html#GIFieldInfo" title="GIFieldInfo"><span class="returnvalue">GIFieldInfo</span></a> *
 313 g_struct_info_get_field (<em class="parameter"><code><a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a> *info</code></em>,
 314                          <em class="parameter"><code><span class="type">gint</span> n</code></em>);</pre>
 315 <p>Obtain the type information for field with specified index.</p>
 316 <div class="refsect3">
 317 <a name="id-1.4.2.13.6.8.5"></a><h4>Parameters</h4>
 318 <div class="informaltable"><table width="100%" border="0">
 319 <colgroup>
 320 <col width="150px" class="parameters_name">
 321 <col class="parameters_description">
 322 <col width="200px" class="parameters_annotations">
 323 </colgroup>
 324 <tbody>
 325 <tr>
 326 <td class="parameter_name"><p>info</p></td>
 327 <td class="parameter_description"><p>a <a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a></p></td>
 328 <td class="parameter_annotations"> </td>
 329 </tr>
 330 <tr>
 331 <td class="parameter_name"><p>n</p></td>
 332 <td class="parameter_description"><p>a field index</p></td>
 333 <td class="parameter_annotations"> </td>
 334 </tr>
 335 </tbody>
 336 </table></div>
 337 </div>
 338 <div class="refsect3">
 339 <a name="id-1.4.2.13.6.8.6"></a><h4>Returns</h4>
 340 <p> the <a class="link" href="gi-GIFieldInfo.html#GIFieldInfo" title="GIFieldInfo"><span class="type">GIFieldInfo</span></a>, free it with <a class="link" href="gi-GIBaseInfo.html#g-base-info-unref" title="g_base_info_unref ()"><code class="function">g_base_info_unref()</code></a>
 341 when done. </p>
 342 <p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
 343 </div>
 344 </div>
 345 <hr>
 346 <div class="refsect2">
 347 <a name="g-struct-info-get-n-methods"></a><h3>g_struct_info_get_n_methods ()</h3>
 348 <pre class="programlisting"><span class="returnvalue">gint</span>
 349 g_struct_info_get_n_methods (<em class="parameter"><code><a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a> *info</code></em>);</pre>
 350 <p>Obtain the number of methods this structure has.</p>
 351 <div class="refsect3">
 352 <a name="id-1.4.2.13.6.9.5"></a><h4>Parameters</h4>
 353 <div class="informaltable"><table width="100%" border="0">
 354 <colgroup>
 355 <col width="150px" class="parameters_name">
 356 <col class="parameters_description">
 357 <col width="200px" class="parameters_annotations">
 358 </colgroup>
 359 <tbody><tr>
 360 <td class="parameter_name"><p>info</p></td>
 361 <td class="parameter_description"><p>a <a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a></p></td>
 362 <td class="parameter_annotations"> </td>
 363 </tr></tbody>
 364 </table></div>
 365 </div>
 366 <div class="refsect3">
 367 <a name="id-1.4.2.13.6.9.6"></a><h4>Returns</h4>
 368 <p> number of methods</p>
 369 <p></p>
 370 </div>
 371 </div>
 372 <hr>
 373 <div class="refsect2">
 374 <a name="g-struct-info-get-method"></a><h3>g_struct_info_get_method ()</h3>
 375 <pre class="programlisting"><a class="link" href="gi-GIFunctionInfo.html#GIFunctionInfo" title="GIFunctionInfo"><span class="returnvalue">GIFunctionInfo</span></a> *
 376 g_struct_info_get_method (<em class="parameter"><code><a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a> *info</code></em>,
 377                           <em class="parameter"><code><span class="type">gint</span> n</code></em>);</pre>
 378 <p>Obtain the type information for method with specified index.</p>
 379 <div class="refsect3">
 380 <a name="id-1.4.2.13.6.10.5"></a><h4>Parameters</h4>
 381 <div class="informaltable"><table width="100%" border="0">
 382 <colgroup>
 383 <col width="150px" class="parameters_name">
 384 <col class="parameters_description">
 385 <col width="200px" class="parameters_annotations">
 386 </colgroup>
 387 <tbody>
 388 <tr>
 389 <td class="parameter_name"><p>info</p></td>
 390 <td class="parameter_description"><p>a <a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a></p></td>
 391 <td class="parameter_annotations"> </td>
 392 </tr>
 393 <tr>
 394 <td class="parameter_name"><p>n</p></td>
 395 <td class="parameter_description"><p>a method index</p></td>
 396 <td class="parameter_annotations"> </td>
 397 </tr>
 398 </tbody>
 399 </table></div>
 400 </div>
 401 <div class="refsect3">
 402 <a name="id-1.4.2.13.6.10.6"></a><h4>Returns</h4>
 403 <p> the <a class="link" href="gi-GIFunctionInfo.html#GIFunctionInfo" title="GIFunctionInfo"><span class="type">GIFunctionInfo</span></a>, free it with <a class="link" href="gi-GIBaseInfo.html#g-base-info-unref" title="g_base_info_unref ()"><code class="function">g_base_info_unref()</code></a>
 404 when done. </p>
 405 <p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
 406 </div>
 407 </div>
 408 <hr>
 409 <div class="refsect2">
 410 <a name="g-struct-info-find-method"></a><h3>g_struct_info_find_method ()</h3>
 411 <pre class="programlisting"><a class="link" href="gi-GIFunctionInfo.html#GIFunctionInfo" title="GIFunctionInfo"><span class="returnvalue">GIFunctionInfo</span></a> *
 412 g_struct_info_find_method (<em class="parameter"><code><a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a> *info</code></em>,
 413                            <em class="parameter"><code>const <span class="type">gchar</span> *name</code></em>);</pre>
 414 <p>Obtain the type information for method named <em class="parameter"><code>name</code></em>
 415 .</p>
 416 <div class="refsect3">
 417 <a name="id-1.4.2.13.6.11.5"></a><h4>Parameters</h4>
 418 <div class="informaltable"><table width="100%" border="0">
 419 <colgroup>
 420 <col width="150px" class="parameters_name">
 421 <col class="parameters_description">
 422 <col width="200px" class="parameters_annotations">
 423 </colgroup>
 424 <tbody>
 425 <tr>
 426 <td class="parameter_name"><p>info</p></td>
 427 <td class="parameter_description"><p>a <a class="link" href="gi-GIStructInfo.html#GIStructInfo" title="GIStructInfo"><span class="type">GIStructInfo</span></a></p></td>
 428 <td class="parameter_annotations"> </td>
 429 </tr>
 430 <tr>
 431 <td class="parameter_name"><p>name</p></td>
 432 <td class="parameter_description"><p>a method name</p></td>
 433 <td class="parameter_annotations"> </td>
 434 </tr>
 435 </tbody>
 436 </table></div>
 437 </div>
 438 <div class="refsect3">
 439 <a name="id-1.4.2.13.6.11.6"></a><h4>Returns</h4>
 440 <p> the <a class="link" href="gi-GIFunctionInfo.html#GIFunctionInfo" title="GIFunctionInfo"><span class="type">GIFunctionInfo</span></a>, free it with <a class="link" href="gi-GIBaseInfo.html#g-base-info-unref" title="g_base_info_unref ()"><code class="function">g_base_info_unref()</code></a>
 441 when done. </p>
 442 <p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p>
 443 </div>
 444 </div>
 445 </div>
 446 <div class="refsect1">
 447 <a name="gi-GIStructInfo.other_details"></a><h2>Types and Values</h2>
 448 <div class="refsect2">
 449 <a name="GIStructInfo"></a><h3>GIStructInfo</h3>
 450 <pre class="programlisting">typedef GIBaseInfo GIStructInfo;
 451 </pre>
 452 <p>Represents a struct.</p>
 453 </div>
 454 </div>
 455 </div>
 456 <div class="footer">
 457 <hr>
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