libstdc++-v3/docs/html/ext/pb_ds/cc_hash_table.html

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  16     <h1><tt>cc_hash_table</tt> Interface</h1>
  17
  18     <p>A concrete collision-chaining hash-based associative
  19     container.</p>
  20
  21     <p>Defined in: <a href=
  22     "../../../../include/ext/pb_ds/assoc_container.hpp"><tt>assoc_container.hpp</tt></a></p>
  23
  24     <h2><a name="link1" id="link1">Template Parameters</a></h2>
  25
  26     <table class="c1" width="100%" border="1" summary=
  27     "Template Parameters">
  28       <tr>
  29         <td width="20%" align="left"><b>Parameter</b></td>
  30
  31         <td width="50%" align="left"><b>Description</b></td>
  32
  33         <td width="30%" align="left"><b>Default Value</b></td>
  34       </tr>
  35
  36       <tr>
  37         <td>
  38           <pre>
  39 <a name="Key2501" id="Key2501"><b>typename</b> Key</a>
  40 </pre>
  41         </td>
  42
  43         <td>
  44           <p>Key type.</p>
  45         </td>
  46
  47         <td>-</td>
  48       </tr>
  49
  50       <tr>
  51         <td>
  52           <pre>
  53 <a name="Mapped318655" id="Mapped318655"><b>typename</b> Mapped</a>
  54 </pre>
  55         </td>
  56
  57         <td>
  58           <p>Mapped type.</p>
  59         </td>
  60
  61         <td>-</td>
  62       </tr>
  63
  64       <tr>
  65         <td>
  66           <pre>
  67 <a name="Hash_Fn1515835" id=
  68 "Hash_Fn1515835"><b>class</b> Hash_Fn </a>
  69 </pre>
  70         </td>
  71
  72         <td>
  73           <p>Hash functor.</p>
  74         </td>
  75
  76         <td>
  77           <pre>
  78 __gnu_cxx::hash&lt;<a href="#Key2501"><tt>Key</tt></a>&gt;
  79 </pre>if using gcc;
  80           <pre>
  81 stdext::hash_value&lt;<a href="#Key2501"><tt>Key</tt></a>&gt;
  82 </pre>if using Visual C++ .net
  83         </td>
  84       </tr>
  85
  86       <tr>
  87         <td>
  88           <pre>
  89 <a name="Eq_Fn60085" id="Eq_Fn60085"><b>class</b> Eq_Fn </a>
  90 </pre>
  91         </td>
  92
  93         <td>
  94           <p>Equivalence functor.</p>
  95         </td>
  96
  97         <td>
  98           <pre>
  99 std::equal_to&lt;<a href="#Key2501"><tt>Key</tt></a>&gt;
 100 </pre>
 101         </td>
 102       </tr>
 103
 104       <tr>
 105         <td>
 106           <pre>
 107 <a name="Comb_Hash_Fn320611039" id=
 108 "Comb_Hash_Fn320611039"><b>class</b> Comb_Hash_Fn </a>
 109 </pre>
 110         </td>
 111
 112         <td>
 113           <p>Combining hash functor.</p>
 114
 115           <p>If <a href="#Hash_Fn1515835"><tt>Hash_Fn</tt></a> is
 116           not <a href="null_hash_fn.html"><span class=
 117           "c2"><tt>null_hash_fn</tt></span></a>, then this is the
 118           ranged-hash functor; otherwise, this is the range-hashing
 119           functor.</p>
 120
 121           <p>(See <a href=
 122           "hash_based_containers.html#hash_policies">Design::Hash-Based
 123           Containers::Hash Policies</a>.)</p>
 124         </td>
 125
 126         <td>
 127           <pre>
 128 <a href="direct_mask_range_hashing.html"><span class=
 129 "c2"><tt>direct_mask_range_hashing</tt></span></a>
 130 </pre>
 131         </td>
 132       </tr>
 133
 134       <tr>
 135         <td>
 136           <pre>
 137 <a name="Resize_Policy566860465" id=
 138 "Resize_Policy566860465"><b>class</b> Resize_Policy </a>
 139 </pre>
 140         </td>
 141
 142         <td>
 143           <p>Resize policy.</p>
 144         </td>
 145
 146         <td>
 147           If <tt><a href=
 148           "#Comb_Hash_Fn320611039"><tt>Comb_Hash_Fn</tt></a></tt>
 149           is <tt><a href=
 150           "direct_mask_range_hashing.html"><span class=
 151           "c2"><tt>direct_mask_range_hashing</tt></span></a></tt>,
 152           then
 153           <pre>
 154 <a href="hash_standard_resize_policy.html"><span class=
 155 "c2"><tt>hash_standard_resize_policy</tt></span></a>&lt;
 156   <a href="hash_exponential_size_policy.html"><span class=
 157 "c2"><tt>hash_exponential_size_policy</tt></span></a>&lt;
 158     <b>typename</b> <a href=
 159 "#Comb_Hash_Fn320611039"><tt>Comb_Hash_Fn</tt></a>::size_type&gt;,
 160   <a href="hash_load_check_resize_trigger.html"><span class=
 161 "c2"><tt>hash_load_check_resize_trigger</tt></span></a>&lt;
 162     <b>typename</b> <a href=
 163 "#Comb_Hash_Fn320611039"><tt>Comb_Hash_Fn</tt></a>::size_type&gt;,
 164   <b>false</b>,
 165   <b>typename</b> <a href=
 166 "#Comb_Hash_Fn320611039"><tt>Comb_Hash_Fn</tt></a>::size_type&gt;
 167 </pre>otherwise,
 168           <pre>
 169 <a href="hash_standard_resize_policy.html"><span class=
 170 "c2"><tt>hash_standard_resize_policy</tt></span></a>&lt;
 171   <a href="hash_exponential_size_policy.html"><span class=
 172 "c2"><tt>hash_exponential_size_policy</tt></span></a>&lt;
 173     <b>typename</b> <a href=
 174 "#Comb_Hash_Fn320611039"><tt>Comb_Hash_Fn</tt></a>::size_type&gt;,
 175   <a href="hash_load_check_resize_trigger.html"><span class=
 176 "c2"><tt>hash_load_check_resize_trigger</tt></span></a>&lt;
 177     <b>typename</b> <a href=
 178 "#Comb_Hash_Fn320611039"><tt>Comb_Hash_Fn</tt></a>::size_type&gt;,
 179   <b>false</b>,
 180   <b>typename</b> <a href=
 181 "#Comb_Hash_Fn320611039"><tt>Comb_Hash_Fn</tt></a>::size_type&gt;
 182 </pre>
 183         </td>
 184       </tr>
 185
 186       <tr>
 187         <td>
 188           <pre>
 189 <a name="Store_Hash218262104" id=
 190 "Store_Hash218262104"><b>bool</b> Store_Hash </a>
 191 </pre>
 192         </td>
 193
 194         <td>
 195           <p>Indicates whether the hash value will be stored along
 196           with each key.</p>
 197
 198           <p>If <tt><a href=
 199           "#hash_fn2015995"><tt>hash_fn</tt></a></tt> is <a href=
 200           "null_hash_fn.html"><span class=
 201           "c2"><tt>null_hash_fn</tt></span></a>, then the container
 202           will not compile if this value is
 203           <tt><b>true</b></tt></p>
 204         </td>
 205
 206         <td>
 207           <pre>
 208 <tt><b>false</b></tt>
 209 </pre>
 210         </td>
 211       </tr>
 212
 213       <tr>
 214         <td>
 215           <pre>
 216 <a name="Allocator35940069" id=
 217 "Allocator35940069"><b>class</b> Allocator </a>
 218 </pre>
 219         </td>
 220
 221         <td>
 222           <p>Allocator type.</p>
 223         </td>
 224
 225         <td>
 226           <pre>
 227 std::allocator&lt;<b>char</b>&gt;
 228 </pre>
 229         </td>
 230       </tr>
 231     </table>
 232
 233     <h2><a name="link2" id="link2">Base Classes</a></h2>
 234
 235     <table class="c1" width="100%" border="1" summary="Bases">
 236       <tr>
 237         <td width="80%" align="left"><b>Class</b></td>
 238
 239         <td width="20%" align="left"><b>Derivation Type</b></td>
 240       </tr>
 241
 242       <tr>
 243         <td>
 244           <pre>
 245 <a href="basic_hash_table.html"><span class=
 246 "c2"><tt>basic_hash_table</tt></span></a>
 247 </pre>
 248         </td>
 249
 250         <td>
 251           <p>public</p>
 252         </td>
 253       </tr>
 254     </table>
 255
 256     <h2><a name="link3" id="link3">Public Types and
 257     Constants</a></h2>
 258
 259     <h3><a name="link4" id="link4">Policy Definitions</a></h3>
 260
 261     <table class="c1" width="100%" border="1" summary="Types">
 262       <tr>
 263         <td width="30%" align="left"><b>Type</b></td>
 264
 265         <td width="55%" align="left"><b>Definition</b></td>
 266
 267         <td width="15%" align="left"><b>Description</b></td>
 268       </tr>
 269
 270       <tr>
 271         <td>
 272           <pre>
 273 <a name="hash_fn2015995" id="hash_fn2015995">hash_fn</a>
 274 </pre>
 275         </td>
 276
 277         <td>
 278           <pre>
 279 <a href="#Hash_Fn1515835"><tt>Hash_Fn</tt></a>
 280 </pre>
 281         </td>
 282
 283         <td>
 284           <p>Hash functor type.</p>
 285         </td>
 286       </tr>
 287
 288       <tr>
 289         <td>
 290           <pre>
 291 <a name="eq_fn80245" id="eq_fn80245">eq_fn</a>
 292 </pre>
 293         </td>
 294
 295         <td>
 296           <pre>
 297 <a href="#Eq_Fn60085"><tt>Eq_Fn</tt></a>
 298 </pre>
 299         </td>
 300
 301         <td>
 302           <p>Equivalence functor type.</p>
 303         </td>
 304       </tr>
 305
 306       <tr>
 307         <td>
 308           <pre>
 309 <a name="resize_policy4084493169" id=
 310 "resize_policy4084493169">resize_policy</a>
 311 </pre>
 312         </td>
 313
 314         <td>
 315           <pre>
 316 <a href="#Resize_Policy566860465"><tt>Resize_Policy</tt></a>
 317 </pre>
 318         </td>
 319
 320         <td>
 321           <p>Resize policy type.</p>
 322         </td>
 323       </tr>
 324
 325       <tr>
 326         <td>
 327           <pre>
 328 <a name="comb_hash_fn1883611199" id=
 329 "comb_hash_fn1883611199">comb_hash_fn</a>
 330 </pre>
 331         </td>
 332
 333         <td>
 334           <pre>
 335 <a href="#Comb_Hash_Fn320611039"><tt>Comb_Hash_Fn</tt></a>
 336 </pre>
 337         </td>
 338
 339         <td>
 340           <p>Combining hash functor type.</p>
 341         </td>
 342       </tr>
 343     </table>
 344
 345     <h2><a name="link5" id="link5">Public Methods</a></h2>
 346
 347     <h3><a name="link6" id="link6">Constructors, Destructor, and
 348     Related</a></h3>
 349
 350     <table class="c1" width="100%" border="1" summary="Methods">
 351       <tr>
 352         <td width="45%" align="left"><b>Method</b></td>
 353
 354         <td width="55%" align="left"><b>Description</b></td>
 355       </tr>
 356
 357       <tr>
 358         <td>
 359           <pre>
 360   cc_hash_table
 361   ()
 362 </pre>
 363         </td>
 364
 365         <td>
 366           <p>Default constructor.</p>
 367         </td>
 368       </tr>
 369
 370       <tr>
 371         <td>
 372           <pre>
 373   cc_hash_table
 374   (<b>const</b> <a href=
 375 "#hash_fn2015995"><tt>hash_fn</tt></a> &amp;r_hash_fn)
 376 </pre>
 377         </td>
 378
 379         <td>
 380           <p>Constructor taking some policy objects. <span class=
 381           "c1"><tt>r_hash_fn</tt></span> will be copied by the
 382           <a href="#Hash_Fn1515835"><tt>Hash_Fn</tt></a> object of
 383           the container object.</p>
 384         </td>
 385       </tr>
 386
 387       <tr>
 388         <td>
 389           <pre>
 390   cc_hash_table
 391   (<b>const</b> <a href=
 392 "#hash_fn2015995"><tt>hash_fn</tt></a> &amp;r_hash_fn,
 393     <b>const</b> <a href=
 394 "#eq_fn80245"><tt>eq_fn</tt></a> &amp;r_eq_fn)
 395 </pre>
 396         </td>
 397
 398         <td>
 399           <p>Constructor taking some policy objects. <span class=
 400           "c1"><tt>r_hash_fn</tt></span> will be copied by the
 401           <a href="#hash_fn2015995"><tt>hash_fn</tt></a> object of
 402           the container object, and <span class=
 403           "c1"><tt>r_eq_fn</tt></span> will be copied by the
 404           <a href="#eq_fn80245"><tt>eq_fn</tt></a> object of the
 405           container object.</p>
 406         </td>
 407       </tr>
 408
 409       <tr>
 410         <td>
 411           <pre>
 412   cc_hash_table
 413   (<b>const</b> <a href=
 414 "#hash_fn2015995"><tt>hash_fn</tt></a> &amp;r_hash_fn,
 415     <b>const</b> <a href=
 416 "#eq_fn80245"><tt>eq_fn</tt></a> &amp;r_eq_fn,
 417     <b>const</b> <a href=
 418 "#comb_hash_fn1883611199"><tt>comb_hash_fn</tt></a> &amp;r_comb_hash_fn)
 419 </pre>
 420         </td>
 421
 422         <td>
 423           <p>Constructor taking some policy objects. <span class=
 424           "c1"><tt>r_hash_fn</tt></span> will be copied by the
 425           <a href="#hash_fn2015995"><tt>hash_fn</tt></a> object of
 426           the container object, <span class=
 427           "c1"><tt>r_eq_fn</tt></span> will be copied by the
 428           <a href="#eq_fn80245"><tt>eq_fn</tt></a> object of the
 429           container object, and <span class=
 430           "c1"><tt>r_comb_hash_fn</tt></span> will be copied by the
 431           <a href=
 432           "#comb_hash_fn1883611199"><tt>comb_hash_fn</tt></a>
 433           object of the container object.</p>
 434         </td>
 435       </tr>
 436
 437       <tr>
 438         <td>
 439           <pre>
 440   cc_hash_table
 441   (<b>const</b> <a href=
 442 "#hash_fn2015995"><tt>hash_fn</tt></a> &amp;r_hash_fn,
 443     <b>const</b> <a href=
 444 "#eq_fn80245"><tt>eq_fn</tt></a> &amp;r_eq_fn,
 445     <b>const</b> <a href=
 446 "#comb_hash_fn1883611199"><tt>comb_hash_fn</tt></a> &amp;r_comb_hash_fn,
 447     <b>const</b> <a href=
 448 "#resize_policy4084493169"><tt>resize_policy</tt></a> &amp;r_resize_policy)
 449 </pre>
 450         </td>
 451
 452         <td>
 453           <p>Constructor taking some policy objects. <span class=
 454           "c1"><tt>r_hash_fn</tt></span> will be copied by the
 455           <a href="#hash_fn2015995"><tt>hash_fn</tt></a> object of
 456           the container object, <span class=
 457           "c1"><tt>r_eq_fn</tt></span> will be copied by the
 458           <a href="#eq_fn80245"><tt>eq_fn</tt></a> object of the
 459           container object, <span class=
 460           "c1"><tt>r_comb_hash_fn</tt></span> will be copied by the
 461           <a href=
 462           "#comb_hash_fn1883611199"><tt>comb_hash_fn</tt></a>
 463           object of the container object, and <span class=
 464           "c1"><tt>r_resize_policy</tt></span> will be copied by
 465           the <a href=
 466           "#resize_policy4084493169"><tt>resize_policy</tt></a>
 467           object of the container object.</p>
 468         </td>
 469       </tr>
 470
 471       <tr>
 472         <td>
 473           <pre>
 474 <b>template</b>&lt;
 475     <b>class</b> It&gt;
 476   cc_hash_table
 477   (It first_it,
 478     It last_it)
 479 </pre>
 480         </td>
 481
 482         <td>
 483           <p>Constructor taking iterators to a range of
 484           value_types. The value_types between <span class=
 485           "c1"><tt>first_it</tt></span> and <span class=
 486           "c1"><tt>last_it</tt></span> will be inserted into the
 487           container object.</p>
 488         </td>
 489       </tr>
 490
 491       <tr>
 492         <td>
 493           <pre>
 494 <b>template</b>&lt;
 495     <b>class</b> It&gt;
 496   cc_hash_table
 497   (It first_it,
 498     It last_it,
 499     <b>const</b> <a href=
 500 "#hash_fn2015995"><tt>hash_fn</tt></a> &amp;r_hash_fn)
 501 </pre>
 502         </td>
 503
 504         <td>
 505           <p>Constructor taking iterators to a range of value_types
 506           and some policy objects. The value_types between
 507           <span class="c1"><tt>first_it</tt></span> and
 508           <span class="c1"><tt>last_it</tt></span> will be inserted
 509           into the container object.</p>
 510         </td>
 511       </tr>
 512
 513       <tr>
 514         <td>
 515           <pre>
 516 <b>template</b>&lt;
 517     <b>class</b> It&gt;
 518   cc_hash_table
 519   (It first_it,
 520     It last_it,
 521     <b>const</b> <a href=
 522 "#hash_fn2015995"><tt>hash_fn</tt></a> &amp;r_hash_fn,
 523     <b>const</b> <a href=
 524 "#eq_fn80245"><tt>eq_fn</tt></a> &amp;r_eq_fn)
 525 </pre>
 526         </td>
 527
 528         <td>
 529           <p>Constructor taking iterators to a range of value_types
 530           and some policy objects The value_types between
 531           <span class="c1"><tt>first_it</tt></span> and
 532           <span class="c1"><tt>last_it</tt></span> will be inserted
 533           into the container object. <span class=
 534           "c1"><tt>r_hash_fn</tt></span> will be copied by the
 535           <a href="#hash_fn2015995"><tt>hash_fn</tt></a> object of
 536           the container object, and <span class=
 537           "c1"><tt>r_eq_fn</tt></span> will be copied by the
 538           <a href="#eq_fn80245"><tt>eq_fn</tt></a> object of the
 539           container object.</p>
 540         </td>
 541       </tr>
 542
 543       <tr>
 544         <td>
 545           <pre>
 546 <b>template</b>&lt;
 547     <b>class</b> It&gt;
 548   cc_hash_table
 549   (It first_it,
 550     It last_it,
 551     <b>const</b> <a href=
 552 "#hash_fn2015995"><tt>hash_fn</tt></a> &amp;r_hash_fn,
 553     <b>const</b> <a href=
 554 "#eq_fn80245"><tt>eq_fn</tt></a> &amp;r_eq_fn,
 555     <b>const</b> <a href=
 556 "#comb_hash_fn1883611199"><tt>comb_hash_fn</tt></a> &amp;r_comb_hash_fn)
 557 </pre>
 558         </td>
 559
 560         <td>
 561           <p>Constructor taking iterators to a range of value_types
 562           and some policy objects The value_types between
 563           <span class="c1"><tt>first_it</tt></span> and
 564           <span class="c1"><tt>last_it</tt></span> will be inserted
 565           into the container object. <span class=
 566           "c1"><tt>r_hash_fn</tt></span> will be copied by the
 567           <a href="#hash_fn2015995"><tt>hash_fn</tt></a> object of
 568           the container object, <span class=
 569           "c1"><tt>r_eq_fn</tt></span> will be copied by the
 570           <a href="#eq_fn80245"><tt>eq_fn</tt></a> object of the
 571           container object, and <span class=
 572           "c1"><tt>r_comb_hash_fn</tt></span> will be copied by the
 573           <a href=
 574           "#comb_hash_fn1883611199"><tt>comb_hash_fn</tt></a>
 575           object of the container object.</p>
 576         </td>
 577       </tr>
 578
 579       <tr>
 580         <td>
 581           <pre>
 582 <b>template</b>&lt;
 583     <b>class</b> It&gt;
 584   cc_hash_table
 585   (It first_it,
 586     It last_it,
 587     <b>const</b> <a href=
 588 "#hash_fn2015995"><tt>hash_fn</tt></a> &amp;r_hash_fn,
 589     <b>const</b> <a href=
 590 "#eq_fn80245"><tt>eq_fn</tt></a> &amp;r_eq_fn,
 591     <b>const</b> <a href=
 592 "#comb_hash_fn1883611199"><tt>comb_hash_fn</tt></a> &amp;r_comb_hash_fn,
 593     <b>const</b> <a href=
 594 "#resize_policy4084493169"><tt>resize_policy</tt></a> &amp;r_resize_policy)
 595 </pre>
 596         </td>
 597
 598         <td>
 599           <p>Constructor taking iterators to a range of value_types
 600           and some policy objects The value_types between
 601           <span class="c1"><tt>first_it</tt></span> and
 602           <span class="c1"><tt>last_it</tt></span> will be inserted
 603           into the container object. <span class=
 604           "c1"><tt>r_hash_fn</tt></span> will be copied by the
 605           <a href="#hash_fn2015995"><tt>hash_fn</tt></a> object of
 606           the container object, <span class=
 607           "c1"><tt>r_eq_fn</tt></span> will be copied by the
 608           <a href="#eq_fn80245"><tt>eq_fn</tt></a> object of the
 609           container object, <span class=
 610           "c1"><tt>r_comb_hash_fn</tt></span> will be copied by the
 611           <a href=
 612           "#comb_hash_fn1883611199"><tt>comb_hash_fn</tt></a>
 613           object of the container object, and <span class=
 614           "c1"><tt>r_resize_policy</tt></span> will be copied by
 615           the <a href=
 616           "#resize_policy4084493169"><tt>resize_policy</tt></a>
 617           object of the container object.</p>
 618         </td>
 619       </tr>
 620
 621       <tr>
 622         <td>
 623           <pre>
 624   cc_hash_table
 625   (<b>const</b> <span class=
 626 "c2"><tt>cc_hash_table</tt></span> &amp;other)
 627 </pre>
 628         </td>
 629
 630         <td>
 631           <p>Copy constructor.</p>
 632         </td>
 633       </tr>
 634
 635       <tr>
 636         <td>
 637           <pre>
 638 <b>virtual</b>
 639   ~cc_hash_table
 640   ()
 641 </pre>
 642         </td>
 643
 644         <td>
 645           <p>Destructor.</p>
 646         </td>
 647       </tr>
 648
 649       <tr>
 650         <td>
 651           <pre>
 652 <span class="c2"><tt>cc_hash_table</tt></span> &amp;
 653   <b>operator</b>=
 654   (<b>const</b> <span class=
 655 "c2"><tt>cc_hash_table</tt></span> &amp;other)
 656 </pre>
 657         </td>
 658
 659         <td>
 660           <p>Assignment operator.</p>
 661         </td>
 662       </tr>
 663
 664       <tr>
 665         <td>
 666           <pre>
 667 <b>void</b>
 668   swap
 669   (<span class=
 670 "c2"><tt>cc_hash_table</tt></span> &amp;other)
 671 </pre>
 672         </td>
 673
 674         <td>
 675           <p>Swaps content.</p>
 676         </td>
 677       </tr>
 678     </table>
 679
 680     <h3><a name="link7" id="link7">Policy Access Methods</a></h3>
 681
 682     <table class="c1" width="100%" border="1" summary="Methods">
 683       <tr>
 684         <td width="45%" align="left"><b>Method</b></td>
 685
 686         <td width="55%" align="left"><b>Description</b></td>
 687       </tr>
 688
 689       <tr>
 690         <td>
 691           <pre>
 692 <a href="#comb_hash_fn1883611199"><tt>comb_hash_fn</tt></a> &amp;
 693   get_comb_hash_fn
 694   ()
 695 </pre>
 696         </td>
 697
 698         <td>
 699           <p>Access to the <a href=
 700           "#comb_hash_fn1883611199"><tt>comb_hash_fn</tt></a>
 701           object.</p>
 702         </td>
 703       </tr>
 704
 705       <tr>
 706         <td>
 707           <pre>
 708 <b>const</b> <a href=
 709 "#comb_hash_fn1883611199"><tt>comb_hash_fn</tt></a> &amp;
 710   get_comb_hash_fn
 711   () <b>const</b>
 712 </pre>
 713         </td>
 714
 715         <td>
 716           <p>Const access to the <a href=
 717           "#comb_hash_fn1883611199"><tt>comb_hash_fn</tt></a>
 718           object.</p>
 719         </td>
 720       </tr>
 721     </table>
 722   </div>
 723 </body>
 724 </html>