1<section xmlns="http://docbook.org/ns/docbook" version="5.0" 2 xml:id="status.iso.1998" xreflabel="ISO C++ 1998"> 3<?dbhtml filename="status_iso_cxx1998.html"?> 4 5<info><title>C++ 1998/2003</title> 6 <keywordset> 7 <keyword>ISO C++</keyword> 8 <keyword>1998</keyword> 9 </keywordset> 10</info> 11 12 13<section xml:id="iso.1998.status" xreflabel="Implementation Status"> 14<info><title>Implementation Status</title></info> 15 16<para> 17This status table is based on the table of contents of ISO/IEC 14882:2003. 18</para> 19 20<para> 21This page describes the C++ support in mainline GCC SVN, not in any 22particular release. 23</para> 24 25<!-- Status is Yes or No, Broken/Partial--> 26<!-- 27 Yes 28 29 No 30 <?dbhtml bgcolor="#C8B0B0" ?> 31 Broken/Partial 32 <?dbhtml bgcolor="#B0B0B0" ?> 33--> 34<table frame="all"> 35 <title>C++ 1998/2003 Implementation Status</title> 36 37<tgroup cols="4" align="left" colsep="0" rowsep="1"> 38<colspec colname="c1"/> 39<colspec colname="c2"/> 40<colspec colname="c3"/> 41<colspec colname="c4"/> 42 <thead> 43 <row> 44 <entry>Section</entry> 45 <entry>Description</entry> 46 <entry>Status</entry> 47 <entry>Comments</entry> 48 </row> 49 </thead> 50 51 <tbody> 52 <row> 53 <entry> 54 <emphasis>18</emphasis> 55 </entry> 56 <entry namest="c2" nameend="c4" align="left"> 57 <emphasis>Language support</emphasis> 58 </entry> 59 </row> 60 61 <row> 62 <entry>18.1</entry> 63 <entry>Types</entry> 64 <entry>Y</entry> 65 <entry/> 66 </row> 67 <row> 68 <entry>18.2</entry> 69 <entry>Implementation properties</entry> 70 <entry>Y</entry> 71 <entry/> 72 </row> 73 <row> 74 <entry>18.2.1</entry> 75 <entry>Numeric Limits</entry> 76 <entry/> 77 <entry/> 78 </row> 79 <row> 80 <entry>18.2.1.1</entry> 81 <entry>Class template <code>numeric_limits</code></entry> 82 <entry>Y</entry> 83 <entry/> 84 </row> 85 <row> 86 <entry>18.2.1.2</entry> 87 <entry><code>numeric_limits</code> members</entry> 88 <entry>Y</entry> 89 </row> 90 <row> 91 <entry>18.2.1.3</entry> 92 <entry><code>float_round_style</code></entry> 93 <entry>Y</entry> 94 </row> 95 <row> 96 <entry>18.2.1.4</entry> 97 <entry><code>float_denorm_style</code></entry> 98 <entry>Y</entry> 99 </row> 100 <row> 101 <entry>18.2.1.5</entry> 102 <entry><code>numeric_limits</code> specializations</entry> 103 <entry>Y</entry> 104 <entry/> 105 </row> 106 <row> 107 <entry>18.2.2</entry> 108 <entry>C Library</entry> 109 <entry>Y</entry> 110 <entry/> 111 </row> 112 <row> 113 <entry>18.3</entry> 114 <entry>Start and termination</entry> 115 <entry>Y</entry> 116 <entry/> 117 </row> 118 <row> 119 <entry>18.4</entry> 120 <entry>Dynamic memory management</entry> 121 <entry>Y</entry> 122 <entry/> 123 </row> 124 <row> 125 <entry>18.5</entry> 126 <entry>Type identification</entry> 127 <entry/> 128 <entry/> 129 </row> 130 <row> 131 <entry>18.5.1</entry> 132 <entry>Class type_info</entry> 133 <entry>Y</entry> 134 <entry/> 135 </row> 136 <row> 137 <entry>18.5.2</entry> 138 <entry>Class bad_cast</entry> 139 <entry>Y</entry> 140 <entry/> 141 </row> 142 <row> 143 <entry>18.5.3</entry> 144 <entry>Class bad_typeid</entry> 145 <entry>Y</entry> 146 <entry/> 147 </row> 148 <row> 149 <entry>18.6</entry> 150 <entry>Exception handling</entry> 151 <entry/> 152 <entry/> 153 </row> 154 <row> 155 <entry>18.6.1</entry> 156 <entry>Class exception</entry> 157 <entry>Y</entry> 158 <entry/> 159 </row> 160 <row> 161 <entry>18.6.2</entry> 162 <entry>Violation exception-specifications</entry> 163 <entry>Y</entry> 164 <entry/> 165 </row> 166 <row> 167 <entry>18.6.3</entry> 168 <entry>Abnormal termination</entry> 169 <entry>Y</entry> 170 <entry/> 171 </row> 172 <row> 173 <entry>18.6.4</entry> 174 <entry><code>uncaught_exception</code></entry> 175 <entry>Y</entry> 176 <entry/> 177 </row> 178 <row> 179 <entry>18.7</entry> 180 <entry>Other runtime support</entry> 181 <entry>Y</entry> 182 <entry/> 183 </row> 184 <row> 185 <entry> 186 <emphasis>19</emphasis> 187 </entry> 188 <entry namest="c2" nameend="c4" align="left"> 189 <emphasis>Diagnostics</emphasis> 190 </entry> 191 </row> 192 <row> 193 <entry>19.1</entry> 194 <entry>Exception classes</entry> 195 <entry>Y</entry> 196 <entry/> 197 </row> 198 <row> 199 <entry>19.2</entry> 200 <entry>Assertions</entry> 201 <entry>Y</entry> 202 <entry/> 203 </row> 204 <row> 205 <entry>19.3</entry> 206 <entry>Error numbers</entry> 207 <entry>Y</entry> 208 <entry/> 209 </row> 210 <row> 211 <entry> 212 <emphasis>20</emphasis> 213 </entry> 214 <entry namest="c2" nameend="c4" align="left"> 215 <emphasis>General utilities</emphasis> 216 </entry> 217 </row> 218 <row> 219 <entry>20.1</entry> 220 <entry>Requirements</entry> 221 <entry>Y</entry> 222 <entry/> 223 </row> 224 <row> 225 <entry>20.2</entry> 226 <entry>Utility components</entry> 227 <entry/> 228 <entry/> 229 </row> 230 <row> 231 <entry>20.2.1</entry> 232 <entry>Operators</entry> 233 <entry>Y</entry> 234 <entry/> 235 </row> 236 <row> 237 <entry>20.2.2</entry> 238 <entry><code>pair</code></entry> 239 <entry>Y</entry> 240 <entry/> 241 </row> 242 <row> 243 <entry>20.3</entry> 244 <entry>Function objects</entry> 245 <entry/> 246 <entry/> 247 </row> 248 <row> 249 <entry>20.3.1</entry> 250 <entry>Base</entry> 251 <entry>Y</entry> 252 <entry/> 253 </row> 254 <row> 255 <entry>20.3.2</entry> 256 <entry>Arithmetic operation</entry> 257 <entry>Y</entry> 258 <entry/> 259 </row> 260 <row> 261 <entry>20.3.3</entry> 262 <entry>Comparisons</entry> 263 <entry>Y</entry> 264 <entry/> 265 </row> 266 <row> 267 <entry>20.3.4</entry> 268 <entry>Logical operations</entry> 269 <entry>Y</entry> 270 <entry/> 271 </row> 272 <row> 273 <entry>20.3.5</entry> 274 <entry>Negators</entry> 275 <entry>Y</entry> 276 <entry/> 277 </row> 278 <row> 279 <entry>20.3.6</entry> 280 <entry>Binders</entry> 281 <entry>Y</entry> 282 <entry/> 283 </row> 284 <row> 285 <entry>20.3.7</entry> 286 <entry>Adaptors for pointers to functions</entry> 287 <entry>Y</entry> 288 <entry/> 289 </row> 290 <row> 291 <entry>20.3.8</entry> 292 <entry>Adaptors for pointers to members</entry> 293 <entry>Y</entry> 294 <entry/> 295 </row> 296 <row> 297 <entry>20.4</entry> 298 <entry>Memory</entry> 299 <entry/> 300 <entry/> 301 </row> 302 <row> 303 <entry>20.4.1</entry> 304 <entry>The default allocator</entry> 305 <entry>Y</entry> 306 <entry/> 307 </row> 308 <row> 309 <entry>20.4.2</entry> 310 <entry>Raw storage iterator</entry> 311 <entry>Y</entry> 312 <entry/> 313 </row> 314 <row> 315 <entry>20.4.3</entry> 316 <entry>Temporary buffers</entry> 317 <entry>Y</entry> 318 <entry/> 319 </row> 320 <row> 321 <entry>20.4.4</entry> 322 <entry>Specialized algorithms</entry> 323 <entry>Y</entry> 324 <entry/> 325 </row> 326 <row> 327 <entry>20.4.4.1</entry> 328 <entry><code>uninitialized_copy</code></entry> 329 <entry>Y</entry> 330 <entry/> 331 </row> 332 <row> 333 <entry>20.4.4.2</entry> 334 <entry><code>uninitialized_fill</code></entry> 335 <entry>Y</entry> 336 <entry/> 337 </row> 338 <row> 339 <entry>20.4.4.3</entry> 340 <entry><code>uninitialized_fill_n</code></entry> 341 <entry>Y</entry> 342 <entry/> 343 </row> 344 <row> 345 <entry>20.4.5</entry> 346 <entry>Class template <code>auto_ptr</code></entry> 347 <entry>Y</entry> 348 <entry/> 349 </row> 350 <row> 351 <entry>20.4.6</entry> 352 <entry>C library</entry> 353 <entry>Y</entry> 354 <entry/> 355 </row> 356 <row> 357 <entry> 358 <emphasis>21</emphasis> 359 </entry> 360 <entry namest="c2" nameend="c4" align="left"> 361 <emphasis>Strings</emphasis> 362 </entry> 363 </row> 364 <row> 365 <entry>21.1</entry> 366 <entry>Character traits</entry> 367 <entry/> 368 <entry/> 369 </row> 370 <row> 371 <entry>21.1.1</entry> 372 <entry>Character traits requirements</entry> 373 <entry>Y</entry> 374 <entry/> 375 </row> 376 <row> 377 <entry>21.1.2</entry> 378 <entry>traits typedef</entry> 379 <entry>Y</entry> 380 <entry/> 381 </row> 382 <row> 383 <entry>21.1.3</entry> 384 <entry><code>char_traits</code> specializations</entry> 385 <entry/> 386 <entry/> 387 </row> 388 <row> 389 <entry>21.1.3.1</entry> 390 <entry>struct <code>char_traits<char></code></entry> 391 <entry>Y</entry> 392 <entry/> 393 </row> 394 <row> 395 <entry>21.1.3.2</entry> 396 <entry>struct <code>char_traits<wchar_t></code></entry> 397 <entry>Y</entry> 398 <entry/> 399 </row> 400 <row> 401 <entry>21.2</entry> 402 <entry>String classes</entry> 403 <entry>Y</entry> 404 <entry/> 405 </row> 406 <row> 407 <entry>21.3</entry> 408 <entry>Class template <code>basic_string</code></entry> 409 <entry>Y</entry> 410 <entry/> 411 </row> 412 <row> 413 <entry>21.4</entry> 414 <entry>Null-terminated sequence utilities</entry> 415 <entry>Y</entry> 416 <entry>C library dependency</entry> 417 </row> 418 <row> 419 <entry> 420 <emphasis>22</emphasis> 421 </entry> 422 <entry namest="c2" nameend="c4" align="left"> 423 <emphasis>Localization</emphasis> 424 </entry> 425 </row> 426 <row> 427 <entry>22.1</entry> 428 <entry>Locales</entry> 429 <entry/> 430 <entry/> 431 </row> 432 <row> 433 <entry>22.1.1</entry> 434 <entry>Class <code>locale</code></entry> 435 <entry>Y</entry> 436 <entry/> 437 </row> 438 <row> 439 <entry>22.1.2</entry> 440 <entry><code>locale</code> globals</entry> 441 <entry>Y</entry> 442 <entry/> 443 </row> 444 <row> 445 <entry>22.1.3</entry> 446 <entry>Convenience interfaces</entry> 447 <entry/> 448 <entry/> 449 </row> 450 <row> 451 <entry>22.1.3.1</entry> 452 <entry>Character classification</entry> 453 <entry>Y</entry> 454 <entry/> 455 </row> 456 <row> 457 <entry>22.1.3.2</entry> 458 <entry>Character conversions</entry> 459 <entry>Y</entry> 460 <entry/> 461 </row> 462 <row> 463 <entry>22.2</entry> 464 <entry>Standard locale categories</entry> 465 <entry/> 466 <entry/> 467 </row> 468 <row> 469 <entry>22.2.1</entry> 470 <entry><code>ctype</code></entry> 471 <entry>Y</entry> 472 <entry/> 473 </row> 474 <row> 475 <entry>22.2.2</entry> 476 <entry>Numeric</entry> 477 <entry/> 478 <entry/> 479 </row> 480 <row> 481 <entry>22.2.2.1</entry> 482 <entry><code>num_get</code></entry> 483 <entry>Y</entry> 484 <entry/> 485 </row> 486 <row> 487 <entry>22.2.2.2</entry> 488 <entry><code>num_put</code></entry> 489 <entry>Y</entry> 490 <entry/> 491 </row> 492 <row> 493 <entry>22.2.3</entry> 494 <entry><code>num_punct</code></entry> 495 <entry>Y</entry> 496 <entry/> 497 </row> 498 <row> 499 <entry>22.2.4</entry> 500 <entry><code>collate</code></entry> 501 <entry>Y</entry> 502 <entry/> 503 </row> 504 <row> 505 <entry>22.2.5</entry> 506 <entry>Time</entry> 507 <entry/> 508 <entry/> 509 </row> 510 <row> 511 <entry>22.2.5.1</entry> 512 <entry><code>time_get</code></entry> 513 <entry>Y</entry> 514 <entry/> 515 </row> 516 <row> 517 <entry>22.2.5.2</entry> 518 <entry><code>time_get_byname</code></entry> 519 <entry>Y</entry> 520 <entry/> 521 </row> 522 <row> 523 <entry>22.2.5.3</entry> 524 <entry><code>time_put</code></entry> 525 <entry>Y</entry> 526 <entry/> 527 </row> 528 <row> 529 <entry>22.2.5.3</entry> 530 <entry><code>time_put_byname</code></entry> 531 <entry>Y</entry> 532 <entry/> 533 </row> 534 <row> 535 <entry>22.2.6</entry> 536 <entry>Monetary</entry> 537 <entry/> 538 <entry/> 539 </row> 540 <row> 541 <entry>22.2.6.1</entry> 542 <entry><code>money_get</code></entry> 543 <entry>Y</entry> 544 <entry/> 545 </row> 546 <row> 547 <entry>22.2.6.2</entry> 548 <entry><code>money_put</code></entry> 549 <entry>Y</entry> 550 <entry/> 551 </row> 552 <row> 553 <entry>22.2.6.3</entry> 554 <entry><code>money_punct</code></entry> 555 <entry>Y</entry> 556 <entry/> 557 </row> 558 <row> 559 <entry>22.2.6.4</entry> 560 <entry><code>money_punct_byname</code></entry> 561 <entry>Y</entry> 562 <entry/> 563 </row> 564 <row> 565 <entry>22.2.7</entry> 566 <entry><code>messages</code></entry> 567 <entry>Y</entry> 568 <entry/> 569 </row> 570 <row> 571 <entry>22.2.8</entry> 572 <entry>Program-defined facets</entry> 573 <entry>Y</entry> 574 <entry/> 575 </row> 576 <row> 577 <entry>22.3</entry> 578 <entry>C Library Locales</entry> 579 <entry>Y</entry> 580 <entry/> 581 </row> 582 <row> 583 <entry> 584 <emphasis>23</emphasis> 585 </entry> 586 <entry namest="c2" nameend="c4" align="left"> 587 <emphasis>Containers</emphasis> 588 </entry> 589 </row> 590 <row> 591 <entry>23.1</entry> 592 <entry>Container requirements</entry> 593 <entry>Y</entry> 594 <entry/> 595 </row> 596 <row> 597 <entry>23.2</entry> 598 <entry>Sequence containers</entry> 599 <entry/> 600 <entry/> 601 </row> 602 <row> 603 <entry>23.2.1</entry> 604 <entry>Class template <code>deque</code></entry> 605 <entry>Y</entry> 606 <entry/> 607 </row> 608 <row> 609 <entry>23.2.2</entry> 610 <entry>Class template <code>list</code></entry> 611 <entry>Y</entry> 612 <entry/> 613 </row> 614 <row> 615 <entry>23.2.3</entry> 616 <entry>Adaptors</entry> 617 <entry/> 618 <entry/> 619 </row> 620 <row> 621 <entry>23.2.3.1</entry> 622 <entry>Class template <code>queue</code></entry> 623 <entry>Y</entry> 624 <entry/> 625 </row> 626 <row> 627 <entry>23.2.3.2</entry> 628 <entry>Class template <code>priority_queue</code></entry> 629 <entry>Y</entry> 630 <entry/> 631 </row> 632 <row> 633 <entry>23.2.3.3</entry> 634 <entry>Class template <code>stack</code></entry> 635 <entry>Y</entry> 636 <entry/> 637 </row> 638 <row> 639 <entry>23.2.4</entry> 640 <entry>Class template <code>vector</code></entry> 641 <entry>Y</entry> 642 <entry/> 643 </row> 644 <row> 645 <entry>23.2.5</entry> 646 <entry>Class <code>vector<bool></code></entry> 647 <entry>Y</entry> 648 <entry/> 649 </row> 650 <row> 651 <entry>23.3</entry> 652 <entry>Associative containers</entry> 653 <entry/> 654 <entry/> 655 </row> 656 <row> 657 <entry>23.3.1</entry> 658 <entry>Class template <code>map</code></entry> 659 <entry>Y</entry> 660 <entry/> 661 </row> 662 <row> 663 <entry>23.3.2</entry> 664 <entry>Class template <code>multimap</code></entry> 665 <entry>Y</entry> 666 <entry/> 667 </row> 668 <row> 669 <entry>23.3.3</entry> 670 <entry>Class template <code>set</code></entry> 671 <entry>Y</entry> 672 <entry/> 673 </row> 674 <row> 675 <entry>23.3.4</entry> 676 <entry>Class template <code>multiset</code></entry> 677 <entry>Y</entry> 678 <entry/> 679 </row> 680 <row> 681 <entry> 682 <emphasis>24</emphasis> 683 </entry> 684 <entry namest="c2" nameend="c4" align="left"> 685 <emphasis>Iterators</emphasis> 686 </entry> 687 </row> 688 <row> 689 <entry>24.1</entry> 690 <entry>Requirements</entry> 691 <entry>Y</entry> 692 <entry/> 693 </row> 694 <row> 695 <entry>24.2</entry> 696 <entry>Header <code><iterator></code> synopsis</entry> 697 <entry>Y</entry> 698 <entry/> 699 </row> 700 <row> 701 <entry>24.3</entry> 702 <entry>Iterator primitives</entry> 703 <entry>Y</entry> 704 <entry/> 705 </row> 706 <row> 707 <entry>24.4</entry> 708 <entry>Predefined iterators and Iterator adaptors</entry> 709 <entry/> 710 <entry/> 711 </row> 712 <row> 713 <entry>24.4.1</entry> 714 <entry>Reverse iterators</entry> 715 <entry>Y</entry> 716 <entry/> 717 </row> 718 <row> 719 <entry>24.4.2</entry> 720 <entry>Insert iterators</entry> 721 <entry>Y</entry> 722 <entry/> 723 </row> 724 <row> 725 <entry>24.5</entry> 726 <entry>Stream iterators</entry> 727 <entry/> 728 <entry/> 729 </row> 730 <row> 731 <entry>24.5.1</entry> 732 <entry>Class template <code>istream_iterator</code></entry> 733 <entry>Y</entry> 734 <entry/> 735 </row> 736 <row> 737 <entry>24.5.2</entry> 738 <entry>Class template <code>ostream_iterator</code></entry> 739 <entry>Y</entry> 740 <entry/> 741 </row> 742 <row> 743 <entry>24.5.3</entry> 744 <entry>Class template <code>istreambuf_iterator</code></entry> 745 <entry>Y</entry> 746 <entry/> 747 </row> 748 <row> 749 <entry>24.5.4</entry> 750 <entry>Class template <code>ostreambuf_iterator</code></entry> 751 <entry>Y</entry> 752 <entry/> 753 </row> 754 <row> 755 <entry> 756 <emphasis>25</emphasis> 757 </entry> 758 <entry namest="c2" nameend="c4" align="left"> 759 <emphasis>Algorithms</emphasis> 760 </entry> 761 </row> 762 <row> 763 <entry>25.1</entry> 764 <entry>Non-modifying sequence operations</entry> 765 <entry>Y</entry> 766 <entry/> 767 </row> 768 <row> 769 <entry>25.2</entry> 770 <entry>Mutating sequence operations</entry> 771 <entry>Y</entry> 772 <entry/> 773 </row> 774 <row> 775 <entry>25.3</entry> 776 <entry>Sorting and related operations</entry> 777 <entry>Y</entry> 778 <entry/> 779 </row> 780 <row> 781 <entry>25.4</entry> 782 <entry>C library algorithms</entry> 783 <entry>Y</entry> 784 <entry/> 785 </row> 786 <row> 787 <entry> 788 <emphasis>26</emphasis> 789 </entry> 790 <entry namest="c2" nameend="c4" align="left"> 791 <emphasis>Numerics</emphasis> 792 </entry> 793 </row> 794 <row> 795 <entry>26.1</entry> 796 <entry>Numeric type requirements</entry> 797 <entry>Y</entry> 798 <entry/> 799 </row> 800 <row> 801 <entry>26.2</entry> 802 <entry>Complex numbers</entry> 803 <entry>Y</entry> 804 <entry/> 805 </row> 806 <row> 807 <entry>26.3</entry> 808 <entry>Numeric arrays</entry> 809 <entry/> 810 <entry/> 811 </row> 812 <row> 813 <entry>26.3.1</entry> 814 <entry>Header <code><valarray></code> synopsis</entry> 815 <entry>Y</entry> 816 <entry/> 817 </row> 818 <row> 819 <entry>26.3.2</entry> 820 <entry>Class template <code>valarray</code></entry> 821 <entry>Y</entry> 822 <entry/> 823 </row> 824 <row> 825 <entry>26.3.3</entry> 826 <entry><code>valarray</code> non-member operations</entry> 827 <entry>Y</entry> 828 <entry/> 829 </row> 830 <row> 831 <entry>26.3.4</entry> 832 <entry>Class <code>slice</code></entry> 833 <entry>Y</entry> 834 <entry/> 835 </row> 836 <row> 837 <entry>26.3.5</entry> 838 <entry>Class template <code>slice_array</code></entry> 839 <entry>Y</entry> 840 <entry/> 841 </row> 842 <row> 843 <entry>26.3.6</entry> 844 <entry>Class <code>gslice</code></entry> 845 <entry>Y</entry> 846 <entry/> 847 </row> 848 <row> 849 <entry>26.3.7</entry> 850 <entry>Class template <code>gslice_array</code></entry> 851 <entry>Y</entry> 852 <entry/> 853 </row> 854 <row> 855 <entry>26.3.8</entry> 856 <entry>Class template <code>mask_array</code></entry> 857 <entry>Y</entry> 858 <entry/> 859 </row> 860 <row> 861 <entry>26.3.9</entry> 862 <entry>Class template <code>indirect_array</code></entry> 863 <entry>Y</entry> 864 <entry/> 865 </row> 866 <row> 867 <entry>26.4</entry> 868 <entry>Generalized numeric operations</entry> 869 <entry/> 870 <entry/> 871 </row> 872 <row> 873 <entry>26.4.1</entry> 874 <entry><code>accumulate</code></entry> 875 <entry>Y</entry> 876 <entry/> 877 </row> 878 <row> 879 <entry>26.4.2</entry> 880 <entry><code>inner_product</code></entry> 881 <entry>Y</entry> 882 <entry/> 883 </row> 884 <row> 885 <entry>26.4.3</entry> 886 <entry><code>partial_sum</code></entry> 887 <entry>Y</entry> 888 <entry/> 889 </row> 890 <row> 891 <entry>26.4.4</entry> 892 <entry><code>adjacent_difference</code></entry> 893 <entry>Y</entry> 894 <entry/> 895 </row> 896 <row> 897 <entry>26.4.5</entry> 898 <entry>iota</entry> 899 <entry>Y</entry> 900 <entry/> 901 </row> 902 <row> 903 <entry>26.5</entry> 904 <entry>C Library</entry> 905 <entry>Y</entry> 906 <entry/> 907 </row> 908 <row> 909 <entry> 910 <emphasis>27</emphasis> 911 </entry> 912 <entry namest="c2" nameend="c4" align="left"> 913 <emphasis>Input/output</emphasis> 914 </entry> 915 </row> 916 <row> 917 <entry>27.1</entry> 918 <entry>Requirements</entry> 919 <entry>Y</entry> 920 <entry/> 921 </row> 922 <row> 923 <entry>27.2</entry> 924 <entry>Forward declarations</entry> 925 <entry>Y</entry> 926 <entry/> 927 </row> 928 <row> 929 <entry>27.3</entry> 930 <entry>Standard iostream objects</entry> 931 <entry>Y</entry> 932 <entry/> 933 </row> 934 <row> 935 <entry>27.3.1</entry> 936 <entry>Narrow stream objects</entry> 937 <entry>Y</entry> 938 <entry/> 939 </row> 940 <row> 941 <entry>27.3.2</entry> 942 <entry>Wide stream objects</entry> 943 <entry>Y</entry> 944 <entry/> 945 </row> 946 <row> 947 <entry>27.4</entry> 948 <entry>Iostreams base classes</entry> 949 <entry>Y</entry> 950 <entry/> 951 </row> 952 <row> 953 <entry>27.5</entry> 954 <entry>Stream buffers</entry> 955 <entry>Y</entry> 956 <entry/> 957 </row> 958 <row> 959 <entry>27.6</entry> 960 <entry>Formatting and manipulators</entry> 961 <entry>Y</entry> 962 <entry/> 963 </row> 964 <row> 965 <entry>27.7</entry> 966 <entry>String-based streams</entry> 967 <entry>Y</entry> 968 <entry/> 969 </row> 970 <row> 971 <entry>27.8</entry> 972 <entry>File-based streams</entry> 973 <entry>Y</entry> 974 <entry/> 975 </row> 976 <row> 977 <entry> 978 <emphasis>Appendix D</emphasis> 979 </entry> 980 <entry namest="c2" nameend="c4" align="left"> 981 <emphasis>Compatibility features</emphasis> 982 </entry> 983 </row> 984 <row> 985 <entry>D.1</entry> 986 <entry>Increment operator with bool operand</entry> 987 <entry/> 988 <entry/> 989 </row> 990 <row> 991 <entry>D.2</entry> 992 <entry><code>static</code> keyword</entry> 993 <entry/> 994 <entry/> 995 </row> 996 <row> 997 <entry>D.3</entry> 998 <entry>Access declarations</entry> 999 <entry/> 1000 <entry/> 1001 </row> 1002 <row> 1003 <entry>D.4</entry> 1004 <entry>Implicit conversion from const strings</entry> 1005 <entry/> 1006 <entry/> 1007 </row> 1008 <row> 1009 <entry>D.5</entry> 1010 <entry>C standard library headers</entry> 1011 <entry/> 1012 <entry/> 1013 </row> 1014 <row> 1015 <entry>D.6</entry> 1016 <entry>Old iostreams members</entry> 1017 <entry/> 1018 <entry/> 1019 </row> 1020 <row> 1021 <entry>D.7</entry> 1022 <entry>char* streams</entry> 1023 <entry/> 1024 <entry/> 1025 </row> 1026 1027 </tbody> 1028</tgroup> 1029</table> 1030</section> 1031 1032<section xml:id="iso.1998.specific" xreflabel="Implementation Specific"><info><title>Implementation Specific Behavior</title></info> 1033 1034 1035 <para> 1036 The ISO standard defines the following phrase: 1037 </para> 1038 <blockquote> 1039 <variablelist> 1040 <varlistentry> 1041 <term> 1042 <code>[1.3.5] implementation-defined behavior</code> 1043 </term> 1044 <listitem> 1045 <para> 1046 Behavior, for a well-formed program construct and correct data, that 1047 depends on the implementation <emphasis>and that each implementation 1048 shall document</emphasis>. 1049 </para> 1050 </listitem> 1051 </varlistentry> 1052 </variablelist> 1053 </blockquote> 1054 <para> 1055 We do so here, for the C++ library only. Behavior of the 1056 compiler, linker, runtime loader, and other elements of "the 1057 implementation" are documented elsewhere. Everything listed 1058 in Annex B, Implementation Qualities, are also part of the 1059 compiler, not the library. 1060 </para> 1061 <para> 1062 For each entry, we give the section number of the standard, when 1063 applicable. This list is probably incomplet and inkorrekt. 1064 </para> 1065 <para> 1066 <emphasis>[1.9]/11 #3</emphasis> If <code>isatty(3)</code> is true, then 1067 interactive stream support is implied. 1068 </para> 1069 <para> 1070 <emphasis>[17.4.4.5]</emphasis> Non-reentrant functions are probably best 1071 discussed in the various sections on multithreading (see above). 1072 </para> 1073 <!-- [17.4.4.8]/3 says any function that doesn't have an exception-spec 1074 can throw whatever we want; see also its footnote. Let's list those 1075 in the sections where the function itself occurs. 1076 --> 1077 <para><emphasis>[18.1]/4</emphasis> The type of <code>NULL</code> is described 1078 <link linkend="std.support.types.null">here</link>. 1079 </para> 1080 <para><emphasis>[18.3]/8</emphasis> Even though it's listed in the library 1081 sections, libstdc++ has zero control over what the cleanup code hands 1082 back to the runtime loader. Talk to the compiler people. :-) 1083 </para> 1084 <para><emphasis>[18.4.2.1]/5</emphasis> (bad_alloc), 1085 <emphasis>[18.5.2]/5</emphasis> (bad_cast), 1086 <emphasis>[18.5.3]/5</emphasis> (bad_typeid), 1087 <emphasis>[18.6.1]/8</emphasis> (exception), 1088 <emphasis>[18.6.2.1]/5</emphasis> (bad_exception): The <code>what()</code> 1089 member function of class <code>std::exception</code>, and these other 1090 classes publicly derived from it, simply returns the name of the 1091 class. But they are the <emphasis>mangled</emphasis> names; you will need to call 1092 <code>c++filt</code> and pass the names as command-line parameters to 1093 demangle them, or call a 1094 <link linkend="manual.ext.demangle">runtime demangler function</link>. 1095 (The classes in <code><stdexcept></code> have constructors which 1096 require an argument to use later for <code>what()</code> calls, so the 1097 problem of <code>what()</code>'s value does not arise in most 1098 user-defined exceptions.) 1099 </para> 1100 <para><emphasis>[18.5.1]/7</emphasis> The return value of 1101 <code>std::type_info::name()</code> is the mangled type name (see the 1102 previous entry for more). 1103 </para> 1104 <para><emphasis>[20.1.5]/5</emphasis> <emphasis>"Implementors are encouraged to 1105 supply libraries that can accept allocators that encapsulate more 1106 general memory models and that support non-equal instances. In such 1107 implementations, any requirements imposed on allocators by containers 1108 beyond those requirements that appear in Table 32, and the semantics 1109 of containers and algorithms when allocator instances compare 1110 non-equal, are implementation-defined."</emphasis> As yet we don't 1111 have any allocators which compare non-equal, so we can't describe how 1112 they behave. 1113 </para> 1114 <para><emphasis>[21.1.3.1]/3,4</emphasis>, 1115 <emphasis>[21.1.3.2]/2</emphasis>, 1116 <emphasis>[23.*]'s foo::iterator</emphasis>, 1117 <emphasis>[27.*]'s foo::*_type</emphasis>, 1118 <emphasis>others...</emphasis> 1119 Nope, these types are called implementation-defined because you 1120 shouldn't be taking advantage of their underlying types. Listing them 1121 here would defeat the purpose. :-) 1122 </para> 1123 <para><emphasis>[21.1.3.1]/5</emphasis> I don't really know about 1124 the mbstate_t stuff... see 1125 the <link linkend="std.localization.facet.codecvt">chapter 22 1126 notes</link> for what does exist. 1127 </para> 1128 <para><emphasis>[22.*]</emphasis> Anything and everything we have on locale 1129 implementation will be described 1130 <link linkend="std.localization.locales.locale">over here</link>. 1131 </para> 1132 <para><emphasis>[26.2.8]/9</emphasis> I have no idea what 1133 <code>complex<T></code>'s pow(0,0) returns. 1134 </para> 1135 <para><emphasis>[27.4.2.4]/2</emphasis> Calling 1136 <code>std::ios_base::sync_with_stdio</code> after I/O has already been 1137 performed on the standard stream objects will 1138 flush the buffers, and <!-- this line might go away --> 1139 destroy and recreate the underlying buffer instances. Whether or not 1140 the previously-written I/O is destroyed in this process depends mostly 1141 on the --enable-libio choice: for stdio, if the written data is 1142 already in the stdio buffer, the data may be completely safe! 1143 </para> 1144 <para><emphasis>[27.6.1.1.2]</emphasis>, 1145 <emphasis>[27.6.2.3]</emphasis> The I/O sentry ctor and dtor can perform 1146 additional work than the minimum required. We are not currently taking 1147 advantage of this yet. 1148 </para> 1149 <para><emphasis>[27.7.1.3]/16</emphasis>, 1150 <emphasis>[27.8.1.4]/10</emphasis> 1151 The effects of <code>pubsetbuf/setbuf</code> are described 1152 <link linkend="std.io">in this chapter</link>. 1153 </para> 1154 <para><emphasis>[27.8.1.4]/16</emphasis> Calling <code>fstream::sync</code> when 1155 a get area exists will... whatever <code>fflush()</code> does, I think. 1156 </para> 1157 1158</section> 1159 1160</section> 1161