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The C and C++ Include Header Files
/usr/include/c++/11/bits/locale_facets_nonio.h
$ cat -n /usr/include/c++/11/bits/locale_facets_nonio.h 1 // Locale support -*- C++ -*- 2 3 // Copyright (C) 2007-2021 Free Software Foundation, Inc. 4 // 5 // This file is part of the GNU ISO C++ Library. This library is free 6 // software; you can redistribute it and/or modify it under the 7 // terms of the GNU General Public License as published by the 8 // Free Software Foundation; either version 3, or (at your option) 9 // any later version. 10 11 // This library is distributed in the hope that it will be useful, 12 // but WITHOUT ANY WARRANTY; without even the implied warranty of 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 // GNU General Public License for more details. 15 16 // Under Section 7 of GPL version 3, you are granted additional 17 // permissions described in the GCC Runtime Library Exception, version 18 // 3.1, as published by the Free Software Foundation. 19 20 // You should have received a copy of the GNU General Public License and 21 // a copy of the GCC Runtime Library Exception along with this program; 22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23 // <http://www.gnu.org/licenses/>. 24 25 /** @file bits/locale_facets_nonio.h 26 * This is an internal header file, included by other library headers. 27 * Do not attempt to use it directly. @headername{locale} 28 */ 29 30 // 31 // ISO C++ 14882: 22.1 Locales 32 // 33 34 #ifndef _LOCALE_FACETS_NONIO_H 35 #define _LOCALE_FACETS_NONIO_H 1 36 37 #pragma GCC system_header 38 39 #include <ctime> // For struct tm 40 41 namespace std _GLIBCXX_VISIBILITY(default) 42 { 43 _GLIBCXX_BEGIN_NAMESPACE_VERSION 44 45 /** 46 * @brief Time format ordering data. 47 * @ingroup locales 48 * 49 * This class provides an enum representing different orderings of 50 * time: day, month, and year. 51 */ 52 class time_base 53 { 54 public: 55 enum dateorder { no_order, dmy, mdy, ymd, ydm }; 56 }; 57 58 template<typename _CharT> 59 struct __timepunct_cache : public locale::facet 60 { 61 // List of all known timezones, with GMT first. 62 static const _CharT* _S_timezones[14]; 63 64 const _CharT* _M_date_format; 65 const _CharT* _M_date_era_format; 66 const _CharT* _M_time_format; 67 const _CharT* _M_time_era_format; 68 const _CharT* _M_date_time_format; 69 const _CharT* _M_date_time_era_format; 70 const _CharT* _M_am; 71 const _CharT* _M_pm; 72 const _CharT* _M_am_pm_format; 73 74 // Day names, starting with "C"'s Sunday. 75 const _CharT* _M_day1; 76 const _CharT* _M_day2; 77 const _CharT* _M_day3; 78 const _CharT* _M_day4; 79 const _CharT* _M_day5; 80 const _CharT* _M_day6; 81 const _CharT* _M_day7; 82 83 // Abbreviated day names, starting with "C"'s Sun. 84 const _CharT* _M_aday1; 85 const _CharT* _M_aday2; 86 const _CharT* _M_aday3; 87 const _CharT* _M_aday4; 88 const _CharT* _M_aday5; 89 const _CharT* _M_aday6; 90 const _CharT* _M_aday7; 91 92 // Month names, starting with "C"'s January. 93 const _CharT* _M_month01; 94 const _CharT* _M_month02; 95 const _CharT* _M_month03; 96 const _CharT* _M_month04; 97 const _CharT* _M_month05; 98 const _CharT* _M_month06; 99 const _CharT* _M_month07; 100 const _CharT* _M_month08; 101 const _CharT* _M_month09; 102 const _CharT* _M_month10; 103 const _CharT* _M_month11; 104 const _CharT* _M_month12; 105 106 // Abbreviated month names, starting with "C"'s Jan. 107 const _CharT* _M_amonth01; 108 const _CharT* _M_amonth02; 109 const _CharT* _M_amonth03; 110 const _CharT* _M_amonth04; 111 const _CharT* _M_amonth05; 112 const _CharT* _M_amonth06; 113 const _CharT* _M_amonth07; 114 const _CharT* _M_amonth08; 115 const _CharT* _M_amonth09; 116 const _CharT* _M_amonth10; 117 const _CharT* _M_amonth11; 118 const _CharT* _M_amonth12; 119 120 bool _M_allocated; 121 122 __timepunct_cache(size_t __refs = 0) : facet(__refs), 123 _M_date_format(0), _M_date_era_format(0), _M_time_format(0), 124 _M_time_era_format(0), _M_date_time_format(0), 125 _M_date_time_era_format(0), _M_am(0), _M_pm(0), 126 _M_am_pm_format(0), _M_day1(0), _M_day2(0), _M_day3(0), 127 _M_day4(0), _M_day5(0), _M_day6(0), _M_day7(0), 128 _M_aday1(0), _M_aday2(0), _M_aday3(0), _M_aday4(0), 129 _M_aday5(0), _M_aday6(0), _M_aday7(0), _M_month01(0), 130 _M_month02(0), _M_month03(0), _M_month04(0), _M_month05(0), 131 _M_month06(0), _M_month07(0), _M_month08(0), _M_month09(0), 132 _M_month10(0), _M_month11(0), _M_month12(0), _M_amonth01(0), 133 _M_amonth02(0), _M_amonth03(0), _M_amonth04(0), 134 _M_amonth05(0), _M_amonth06(0), _M_amonth07(0), 135 _M_amonth08(0), _M_amonth09(0), _M_amonth10(0), 136 _M_amonth11(0), _M_amonth12(0), _M_allocated(false) 137 { } 138 139 ~__timepunct_cache(); 140 141 private: 142 __timepunct_cache& 143 operator=(const __timepunct_cache&); 144 145 explicit 146 __timepunct_cache(const __timepunct_cache&); 147 }; 148 149 template<typename _CharT> 150 __timepunct_cache<_CharT>::~__timepunct_cache() 151 { 152 if (_M_allocated) 153 { 154 // Unused. 155 } 156 } 157 158 // Specializations. 159 template<> 160 const char* 161 __timepunct_cache<char>::_S_timezones[14]; 162 163 #ifdef _GLIBCXX_USE_WCHAR_T 164 template<> 165 const wchar_t* 166 __timepunct_cache<wchar_t>::_S_timezones[14]; 167 #endif 168 169 // Generic. 170 template<typename _CharT> 171 const _CharT* __timepunct_cache<_CharT>::_S_timezones[14]; 172 173 template<typename _CharT> 174 class __timepunct : public locale::facet 175 { 176 public: 177 // Types: 178 typedef _CharT __char_type; 179 typedef __timepunct_cache<_CharT> __cache_type; 180 181 protected: 182 __cache_type* _M_data; 183 __c_locale _M_c_locale_timepunct; 184 const char* _M_name_timepunct; 185 186 public: 187 /// Numpunct facet id. 188 static locale::id id; 189 190 explicit 191 __timepunct(size_t __refs = 0); 192 193 explicit 194 __timepunct(__cache_type* __cache, size_t __refs = 0); 195 196 /** 197 * @brief Internal constructor. Not for general use. 198 * 199 * This is a constructor for use by the library itself to set up new 200 * locales. 201 * 202 * @param __cloc The C locale. 203 * @param __s The name of a locale. 204 * @param refs Passed to the base facet class. 205 */ 206 explicit 207 __timepunct(__c_locale __cloc, const char* __s, size_t __refs = 0); 208 209 // FIXME: for error checking purposes _M_put should return the return 210 // value of strftime/wcsftime. 211 void 212 _M_put(_CharT* __s, size_t __maxlen, const _CharT* __format, 213 const tm* __tm) const throw (); 214 215 void 216 _M_date_formats(const _CharT** __date) const 217 { 218 // Always have default first. 219 __date[0] = _M_data->_M_date_format; 220 __date[1] = _M_data->_M_date_era_format; 221 } 222 223 void 224 _M_time_formats(const _CharT** __time) const 225 { 226 // Always have default first. 227 __time[0] = _M_data->_M_time_format; 228 __time[1] = _M_data->_M_time_era_format; 229 } 230 231 void 232 _M_date_time_formats(const _CharT** __dt) const 233 { 234 // Always have default first. 235 __dt[0] = _M_data->_M_date_time_format; 236 __dt[1] = _M_data->_M_date_time_era_format; 237 } 238 239 #if !_GLIBCXX_INLINE_VERSION 240 void 241 _M_am_pm_format(const _CharT*) const 242 { /* Kept for ABI compatibility, see PR65927 */ } 243 #endif 244 245 void 246 _M_am_pm(const _CharT** __ampm) const 247 { 248 __ampm[0] = _M_data->_M_am; 249 __ampm[1] = _M_data->_M_pm; 250 } 251 252 void 253 _M_days(const _CharT** __days) const 254 { 255 __days[0] = _M_data->_M_day1; 256 __days[1] = _M_data->_M_day2; 257 __days[2] = _M_data->_M_day3; 258 __days[3] = _M_data->_M_day4; 259 __days[4] = _M_data->_M_day5; 260 __days[5] = _M_data->_M_day6; 261 __days[6] = _M_data->_M_day7; 262 } 263 264 void 265 _M_days_abbreviated(const _CharT** __days) const 266 { 267 __days[0] = _M_data->_M_aday1; 268 __days[1] = _M_data->_M_aday2; 269 __days[2] = _M_data->_M_aday3; 270 __days[3] = _M_data->_M_aday4; 271 __days[4] = _M_data->_M_aday5; 272 __days[5] = _M_data->_M_aday6; 273 __days[6] = _M_data->_M_aday7; 274 } 275 276 void 277 _M_months(const _CharT** __months) const 278 { 279 __months[0] = _M_data->_M_month01; 280 __months[1] = _M_data->_M_month02; 281 __months[2] = _M_data->_M_month03; 282 __months[3] = _M_data->_M_month04; 283 __months[4] = _M_data->_M_month05; 284 __months[5] = _M_data->_M_month06; 285 __months[6] = _M_data->_M_month07; 286 __months[7] = _M_data->_M_month08; 287 __months[8] = _M_data->_M_month09; 288 __months[9] = _M_data->_M_month10; 289 __months[10] = _M_data->_M_month11; 290 __months[11] = _M_data->_M_month12; 291 } 292 293 void 294 _M_months_abbreviated(const _CharT** __months) const 295 { 296 __months[0] = _M_data->_M_amonth01; 297 __months[1] = _M_data->_M_amonth02; 298 __months[2] = _M_data->_M_amonth03; 299 __months[3] = _M_data->_M_amonth04; 300 __months[4] = _M_data->_M_amonth05; 301 __months[5] = _M_data->_M_amonth06; 302 __months[6] = _M_data->_M_amonth07; 303 __months[7] = _M_data->_M_amonth08; 304 __months[8] = _M_data->_M_amonth09; 305 __months[9] = _M_data->_M_amonth10; 306 __months[10] = _M_data->_M_amonth11; 307 __months[11] = _M_data->_M_amonth12; 308 } 309 310 protected: 311 virtual 312 ~__timepunct(); 313 314 // For use at construction time only. 315 void 316 _M_initialize_timepunct(__c_locale __cloc = 0); 317 }; 318 319 template<typename _CharT> 320 locale::id __timepunct<_CharT>::id; 321 322 // Specializations. 323 template<> 324 void 325 __timepunct<char>::_M_initialize_timepunct(__c_locale __cloc); 326 327 template<> 328 void 329 __timepunct<char>::_M_put(char*, size_t, const char*, const tm*) const throw (); 330 331 #ifdef _GLIBCXX_USE_WCHAR_T 332 template<> 333 void 334 __timepunct<wchar_t>::_M_initialize_timepunct(__c_locale __cloc); 335 336 template<> 337 void 338 __timepunct<wchar_t>::_M_put(wchar_t*, size_t, const wchar_t*, 339 const tm*) const throw (); 340 #endif 341 342 _GLIBCXX_END_NAMESPACE_VERSION 343 } // namespace 344 345 // Include host and configuration specific timepunct functions. 346 #include <bits/time_members.h> 347 348 namespace std _GLIBCXX_VISIBILITY(default) 349 { 350 _GLIBCXX_BEGIN_NAMESPACE_VERSION 351 352 _GLIBCXX_BEGIN_NAMESPACE_CXX11 353 354 /** 355 * @brief Primary class template time_get. 356 * @ingroup locales 357 * 358 * This facet encapsulates the code to parse and return a date or 359 * time from a string. It is used by the istream numeric 360 * extraction operators. 361 * 362 * The time_get template uses protected virtual functions to provide the 363 * actual results. The public accessors forward the call to the virtual 364 * functions. These virtual functions are hooks for developers to 365 * implement the behavior they require from the time_get facet. 366 */ 367 template<typename _CharT, typename _InIter> 368 class time_get : public locale::facet, public time_base 369 { 370 public: 371 // Types: 372 ///@{ 373 /// Public typedefs 374 typedef _CharT char_type; 375 typedef _InIter iter_type; 376 ///@} 377 378 /// Numpunct facet id. 379 static locale::id id; 380 381 /** 382 * @brief Constructor performs initialization. 383 * 384 * This is the constructor provided by the standard. 385 * 386 * @param __refs Passed to the base facet class. 387 */ 388 explicit 389 time_get(size_t __refs = 0) 390 : facet (__refs) { } 391 392 /** 393 * @brief Return preferred order of month, day, and year. 394 * 395 * This function returns an enum from time_base::dateorder giving the 396 * preferred ordering if the format @a x given to time_put::put() only 397 * uses month, day, and year. If the format @a x for the associated 398 * locale uses other fields, this function returns 399 * time_base::dateorder::noorder. 400 * 401 * NOTE: The library always returns noorder at the moment. 402 * 403 * @return A member of time_base::dateorder. 404 */ 405 dateorder 406 date_order() const 407 { return this->do_date_order(); } 408 409 /** 410 * @brief Parse input time string. 411 * 412 * This function parses a time according to the format @a X and puts the 413 * results into a user-supplied struct tm. The result is returned by 414 * calling time_get::do_get_time(). 415 * 416 * If there is a valid time string according to format @a X, @a tm will 417 * be filled in accordingly and the returned iterator will point to the 418 * first character beyond the time string. If an error occurs before 419 * the end, err |= ios_base::failbit. If parsing reads all the 420 * characters, err |= ios_base::eofbit. 421 * 422 * @param __beg Start of string to parse. 423 * @param __end End of string to parse. 424 * @param __io Source of the locale. 425 * @param __err Error flags to set. 426 * @param __tm Pointer to struct tm to fill in. 427 * @return Iterator to first char beyond time string. 428 */ 429 iter_type 430 get_time(iter_type __beg, iter_type __end, ios_base& __io, 431 ios_base::iostate& __err, tm* __tm) const 432 { return this->do_get_time(__beg, __end, __io, __err, __tm); } 433 434 /** 435 * @brief Parse input date string. 436 * 437 * This function parses a date according to the format @a x and puts the 438 * results into a user-supplied struct tm. The result is returned by 439 * calling time_get::do_get_date(). 440 * 441 * If there is a valid date string according to format @a x, @a tm will 442 * be filled in accordingly and the returned iterator will point to the 443 * first character beyond the date string. If an error occurs before 444 * the end, err |= ios_base::failbit. If parsing reads all the 445 * characters, err |= ios_base::eofbit. 446 * 447 * @param __beg Start of string to parse. 448 * @param __end End of string to parse. 449 * @param __io Source of the locale. 450 * @param __err Error flags to set. 451 * @param __tm Pointer to struct tm to fill in. 452 * @return Iterator to first char beyond date string. 453 */ 454 iter_type 455 get_date(iter_type __beg, iter_type __end, ios_base& __io, 456 ios_base::iostate& __err, tm* __tm) const 457 { return this->do_get_date(__beg, __end, __io, __err, __tm); } 458 459 /** 460 * @brief Parse input weekday string. 461 * 462 * This function parses a weekday name and puts the results into a 463 * user-supplied struct tm. The result is returned by calling 464 * time_get::do_get_weekday(). 465 * 466 * Parsing starts by parsing an abbreviated weekday name. If a valid 467 * abbreviation is followed by a character that would lead to the full 468 * weekday name, parsing continues until the full name is found or an 469 * error occurs. Otherwise parsing finishes at the end of the 470 * abbreviated name. 471 * 472 * If an error occurs before the end, err |= ios_base::failbit. If 473 * parsing reads all the characters, err |= ios_base::eofbit. 474 * 475 * @param __beg Start of string to parse. 476 * @param __end End of string to parse. 477 * @param __io Source of the locale. 478 * @param __err Error flags to set. 479 * @param __tm Pointer to struct tm to fill in. 480 * @return Iterator to first char beyond weekday name. 481 */ 482 iter_type 483 get_weekday(iter_type __beg, iter_type __end, ios_base& __io, 484 ios_base::iostate& __err, tm* __tm) const 485 { return this->do_get_weekday(__beg, __end, __io, __err, __tm); } 486 487 /** 488 * @brief Parse input month string. 489 * 490 * This function parses a month name and puts the results into a 491 * user-supplied struct tm. The result is returned by calling 492 * time_get::do_get_monthname(). 493 * 494 * Parsing starts by parsing an abbreviated month name. If a valid 495 * abbreviation is followed by a character that would lead to the full 496 * month name, parsing continues until the full name is found or an 497 * error occurs. Otherwise parsing finishes at the end of the 498 * abbreviated name. 499 * 500 * If an error occurs before the end, err |= ios_base::failbit. If 501 * parsing reads all the characters, err |= 502 * ios_base::eofbit. 503 * 504 * @param __beg Start of string to parse. 505 * @param __end End of string to parse. 506 * @param __io Source of the locale. 507 * @param __err Error flags to set. 508 * @param __tm Pointer to struct tm to fill in. 509 * @return Iterator to first char beyond month name. 510 */ 511 iter_type 512 get_monthname(iter_type __beg, iter_type __end, ios_base& __io, 513 ios_base::iostate& __err, tm* __tm) const 514 { return this->do_get_monthname(__beg, __end, __io, __err, __tm); } 515 516 /** 517 * @brief Parse input year string. 518 * 519 * This function reads up to 4 characters to parse a year string and 520 * puts the results into a user-supplied struct tm. The result is 521 * returned by calling time_get::do_get_year(). 522 * 523 * 4 consecutive digits are interpreted as a full year. If there are 524 * exactly 2 consecutive digits, the library interprets this as the 525 * number of years since 1900. 526 * 527 * If an error occurs before the end, err |= ios_base::failbit. If 528 * parsing reads all the characters, err |= ios_base::eofbit. 529 * 530 * @param __beg Start of string to parse. 531 * @param __end End of string to parse. 532 * @param __io Source of the locale. 533 * @param __err Error flags to set. 534 * @param __tm Pointer to struct tm to fill in. 535 * @return Iterator to first char beyond year. 536 */ 537 iter_type 538 get_year(iter_type __beg, iter_type __end, ios_base& __io, 539 ios_base::iostate& __err, tm* __tm) const 540 { return this->do_get_year(__beg, __end, __io, __err, __tm); } 541 542 #if __cplusplus >= 201103L 543 /** 544 * @brief Parse input string according to format. 545 * 546 * This function calls time_get::do_get with the provided 547 * parameters. @see do_get() and get(). 548 * 549 * @param __s Start of string to parse. 550 * @param __end End of string to parse. 551 * @param __io Source of the locale. 552 * @param __err Error flags to set. 553 * @param __tm Pointer to struct tm to fill in. 554 * @param __format Format specifier. 555 * @param __modifier Format modifier. 556 * @return Iterator to first char not parsed. 557 */ 558 inline 559 iter_type get(iter_type __s, iter_type __end, ios_base& __io, 560 ios_base::iostate& __err, tm* __tm, char __format, 561 char __modifier = 0) const 562 { 563 return this->do_get(__s, __end, __io, __err, __tm, __format, 564 __modifier); 565 } 566 567 /** 568 * @brief Parse input string according to format. 569 * 570 * This function parses the input string according to a 571 * provided format string. It does the inverse of 572 * time_put::put. The format string follows the format 573 * specified for strftime(3)/strptime(3). The actual parsing 574 * is done by time_get::do_get. 575 * 576 * @param __s Start of string to parse. 577 * @param __end End of string to parse. 578 * @param __io Source of the locale. 579 * @param __err Error flags to set. 580 * @param __tm Pointer to struct tm to fill in. 581 * @param __fmt Start of the format string. 582 * @param __fmtend End of the format string. 583 * @return Iterator to first char not parsed. 584 */ 585 iter_type get(iter_type __s, iter_type __end, ios_base& __io, 586 ios_base::iostate& __err, tm* __tm, const char_type* __fmt, 587 const char_type* __fmtend) const; 588 #endif // __cplusplus >= 201103L 589 590 protected: 591 /// Destructor. 592 virtual 593 ~time_get() { } 594 595 /** 596 * @brief Return preferred order of month, day, and year. 597 * 598 * This function returns an enum from time_base::dateorder giving the 599 * preferred ordering if the format @a x given to time_put::put() only 600 * uses month, day, and year. This function is a hook for derived 601 * classes to change the value returned. 602 * 603 * @return A member of time_base::dateorder. 604 */ 605 virtual dateorder 606 do_date_order() const; 607 608 /** 609 * @brief Parse input time string. 610 * 611 * This function parses a time according to the format @a x and puts the 612 * results into a user-supplied struct tm. This function is a hook for 613 * derived classes to change the value returned. @see get_time() for 614 * details. 615 * 616 * @param __beg Start of string to parse. 617 * @param __end End of string to parse. 618 * @param __io Source of the locale. 619 * @param __err Error flags to set. 620 * @param __tm Pointer to struct tm to fill in. 621 * @return Iterator to first char beyond time string. 622 */ 623 virtual iter_type 624 do_get_time(iter_type __beg, iter_type __end, ios_base& __io, 625 ios_base::iostate& __err, tm* __tm) const; 626 627 /** 628 * @brief Parse input date string. 629 * 630 * This function parses a date according to the format @a X and puts the 631 * results into a user-supplied struct tm. This function is a hook for 632 * derived classes to change the value returned. @see get_date() for 633 * details. 634 * 635 * @param __beg Start of string to parse. 636 * @param __end End of string to parse. 637 * @param __io Source of the locale. 638 * @param __err Error flags to set. 639 * @param __tm Pointer to struct tm to fill in. 640 * @return Iterator to first char beyond date string. 641 */ 642 virtual iter_type 643 do_get_date(iter_type __beg, iter_type __end, ios_base& __io, 644 ios_base::iostate& __err, tm* __tm) const; 645 646 /** 647 * @brief Parse input weekday string. 648 * 649 * This function parses a weekday name and puts the results into a 650 * user-supplied struct tm. This function is a hook for derived 651 * classes to change the value returned. @see get_weekday() for 652 * details. 653 * 654 * @param __beg Start of string to parse. 655 * @param __end End of string to parse. 656 * @param __io Source of the locale. 657 * @param __err Error flags to set. 658 * @param __tm Pointer to struct tm to fill in. 659 * @return Iterator to first char beyond weekday name. 660 */ 661 virtual iter_type 662 do_get_weekday(iter_type __beg, iter_type __end, ios_base&, 663 ios_base::iostate& __err, tm* __tm) const; 664 665 /** 666 * @brief Parse input month string. 667 * 668 * This function parses a month name and puts the results into a 669 * user-supplied struct tm. This function is a hook for derived 670 * classes to change the value returned. @see get_monthname() for 671 * details. 672 * 673 * @param __beg Start of string to parse. 674 * @param __end End of string to parse. 675 * @param __io Source of the locale. 676 * @param __err Error flags to set. 677 * @param __tm Pointer to struct tm to fill in. 678 * @return Iterator to first char beyond month name. 679 */ 680 virtual iter_type 681 do_get_monthname(iter_type __beg, iter_type __end, ios_base&, 682 ios_base::iostate& __err, tm* __tm) const; 683 684 /** 685 * @brief Parse input year string. 686 * 687 * This function reads up to 4 characters to parse a year string and 688 * puts the results into a user-supplied struct tm. This function is a 689 * hook for derived classes to change the value returned. @see 690 * get_year() for details. 691 * 692 * @param __beg Start of string to parse. 693 * @param __end End of string to parse. 694 * @param __io Source of the locale. 695 * @param __err Error flags to set. 696 * @param __tm Pointer to struct tm to fill in. 697 * @return Iterator to first char beyond year. 698 */ 699 virtual iter_type 700 do_get_year(iter_type __beg, iter_type __end, ios_base& __io, 701 ios_base::iostate& __err, tm* __tm) const; 702 703 #if __cplusplus >= 201103L 704 /** 705 * @brief Parse input string according to format. 706 * 707 * This function parses the string according to the provided 708 * format and optional modifier. This function is a hook for 709 * derived classes to change the value returned. @see get() 710 * for more details. 711 * 712 * @param __s Start of string to parse. 713 * @param __end End of string to parse. 714 * @param __f Source of the locale. 715 * @param __err Error flags to set. 716 * @param __tm Pointer to struct tm to fill in. 717 * @param __format Format specifier. 718 * @param __modifier Format modifier. 719 * @return Iterator to first char not parsed. 720 */ 721 #if _GLIBCXX_USE_CXX11_ABI 722 virtual 723 #endif 724 iter_type 725 do_get(iter_type __s, iter_type __end, ios_base& __f, 726 ios_base::iostate& __err, tm* __tm, 727 char __format, char __modifier) const; 728 #endif // __cplusplus >= 201103L 729 730 // Extract numeric component of length __len. 731 iter_type 732 _M_extract_num(iter_type __beg, iter_type __end, int& __member, 733 int __min, int __max, size_t __len, 734 ios_base& __io, ios_base::iostate& __err) const; 735 736 // Extract any unique array of string literals in a const _CharT* array. 737 iter_type 738 _M_extract_name(iter_type __beg, iter_type __end, int& __member, 739 const _CharT** __names, size_t __indexlen, 740 ios_base& __io, ios_base::iostate& __err) const; 741 742 // Extract day or month name in a const _CharT* array. 743 iter_type 744 _M_extract_wday_or_month(iter_type __beg, iter_type __end, int& __member, 745 const _CharT** __names, size_t __indexlen, 746 ios_base& __io, ios_base::iostate& __err) const; 747 748 // Extract on a component-by-component basis, via __format argument. 749 iter_type 750 _M_extract_via_format(iter_type __beg, iter_type __end, ios_base& __io, 751 ios_base::iostate& __err, tm* __tm, 752 const _CharT* __format) const; 753 }; 754 755 template<typename _CharT, typename _InIter> 756 locale::id time_get<_CharT, _InIter>::id; 757 758 /// class time_get_byname [22.2.5.2]. 759 template<typename _CharT, typename _InIter> 760 class time_get_byname : public time_get<_CharT, _InIter> 761 { 762 public: 763 // Types: 764 typedef _CharT char_type; 765 typedef _InIter iter_type; 766 767 explicit 768 time_get_byname(const char*, size_t __refs = 0) 769 : time_get<_CharT, _InIter>(__refs) { } 770 771 #if __cplusplus >= 201103L 772 explicit 773 time_get_byname(const string& __s, size_t __refs = 0) 774 : time_get_byname(__s.c_str(), __refs) { } 775 #endif 776 777 protected: 778 virtual 779 ~time_get_byname() { } 780 }; 781 782 _GLIBCXX_END_NAMESPACE_CXX11 783 784 /** 785 * @brief Primary class template time_put. 786 * @ingroup locales 787 * 788 * This facet encapsulates the code to format and output dates and times 789 * according to formats used by strftime(). 790 * 791 * The time_put template uses protected virtual functions to provide the 792 * actual results. The public accessors forward the call to the virtual 793 * functions. These virtual functions are hooks for developers to 794 * implement the behavior they require from the time_put facet. 795 */ 796 template<typename _CharT, typename _OutIter> 797 class time_put : public locale::facet 798 { 799 public: 800 // Types: 801 ///@{ 802 /// Public typedefs 803 typedef _CharT char_type; 804 typedef _OutIter iter_type; 805 ///@} 806 807 /// Numpunct facet id. 808 static locale::id id; 809 810 /** 811 * @brief Constructor performs initialization. 812 * 813 * This is the constructor provided by the standard. 814 * 815 * @param __refs Passed to the base facet class. 816 */ 817 explicit 818 time_put(size_t __refs = 0) 819 : facet(__refs) { } 820 821 /** 822 * @brief Format and output a time or date. 823 * 824 * This function formats the data in struct tm according to the 825 * provided format string. The format string is interpreted as by 826 * strftime(). 827 * 828 * @param __s The stream to write to. 829 * @param __io Source of locale. 830 * @param __fill char_type to use for padding. 831 * @param __tm Struct tm with date and time info to format. 832 * @param __beg Start of format string. 833 * @param __end End of format string. 834 * @return Iterator after writing. 835 */ 836 iter_type 837 put(iter_type __s, ios_base& __io, char_type __fill, const tm* __tm, 838 const _CharT* __beg, const _CharT* __end) const; 839 840 /** 841 * @brief Format and output a time or date. 842 * 843 * This function formats the data in struct tm according to the 844 * provided format char and optional modifier. The format and modifier 845 * are interpreted as by strftime(). It does so by returning 846 * time_put::do_put(). 847 * 848 * @param __s The stream to write to. 849 * @param __io Source of locale. 850 * @param __fill char_type to use for padding. 851 * @param __tm Struct tm with date and time info to format. 852 * @param __format Format char. 853 * @param __mod Optional modifier char. 854 * @return Iterator after writing. 855 */ 856 iter_type 857 put(iter_type __s, ios_base& __io, char_type __fill, 858 const tm* __tm, char __format, char __mod = 0) const 859 { return this->do_put(__s, __io, __fill, __tm, __format, __mod); } 860 861 protected: 862 /// Destructor. 863 virtual 864 ~time_put() 865 { } 866 867 /** 868 * @brief Format and output a time or date. 869 * 870 * This function formats the data in struct tm according to the 871 * provided format char and optional modifier. This function is a hook 872 * for derived classes to change the value returned. @see put() for 873 * more details. 874 * 875 * @param __s The stream to write to. 876 * @param __io Source of locale. 877 * @param __fill char_type to use for padding. 878 * @param __tm Struct tm with date and time info to format. 879 * @param __format Format char. 880 * @param __mod Optional modifier char. 881 * @return Iterator after writing. 882 */ 883 virtual iter_type 884 do_put(iter_type __s, ios_base& __io, char_type __fill, const tm* __tm, 885 char __format, char __mod) const; 886 }; 887 888 template<typename _CharT, typename _OutIter> 889 locale::id time_put<_CharT, _OutIter>::id; 890 891 /// class time_put_byname [22.2.5.4]. 892 template<typename _CharT, typename _OutIter> 893 class time_put_byname : public time_put<_CharT, _OutIter> 894 { 895 public: 896 // Types: 897 typedef _CharT char_type; 898 typedef _OutIter iter_type; 899 900 explicit 901 time_put_byname(const char*, size_t __refs = 0) 902 : time_put<_CharT, _OutIter>(__refs) 903 { } 904 905 #if __cplusplus >= 201103L 906 explicit 907 time_put_byname(const string& __s, size_t __refs = 0) 908 : time_put_byname(__s.c_str(), __refs) { } 909 #endif 910 911 protected: 912 virtual 913 ~time_put_byname() { } 914 }; 915 916 917 /** 918 * @brief Money format ordering data. 919 * @ingroup locales 920 * 921 * This class contains an ordered array of 4 fields to represent the 922 * pattern for formatting a money amount. Each field may contain one entry 923 * from the part enum. symbol, sign, and value must be present and the 924 * remaining field must contain either none or space. @see 925 * moneypunct::pos_format() and moneypunct::neg_format() for details of how 926 * these fields are interpreted. 927 */ 928 class money_base 929 { 930 public: 931 enum part { none, space, symbol, sign, value }; 932 struct pattern { char field[4]; }; 933 934 static const pattern _S_default_pattern; 935 936 enum 937 { 938 _S_minus, 939 _S_zero, 940 _S_end = 11 941 }; 942 943 // String literal of acceptable (narrow) input/output, for 944 // money_get/money_put. "-0123456789" 945 static const char* _S_atoms; 946 947 // Construct and return valid pattern consisting of some combination of: 948 // space none symbol sign value 949 _GLIBCXX_CONST static pattern 950 _S_construct_pattern(char __precedes, char __space, char __posn) throw (); 951 }; 952 953 template<typename _CharT, bool _Intl> 954 struct __moneypunct_cache : public locale::facet 955 { 956 const char* _M_grouping; 957 size_t _M_grouping_size; 958 bool _M_use_grouping; 959 _CharT _M_decimal_point; 960 _CharT _M_thousands_sep; 961 const _CharT* _M_curr_symbol; 962 size_t _M_curr_symbol_size; 963 const _CharT* _M_positive_sign; 964 size_t _M_positive_sign_size; 965 const _CharT* _M_negative_sign; 966 size_t _M_negative_sign_size; 967 int _M_frac_digits; 968 money_base::pattern _M_pos_format; 969 money_base::pattern _M_neg_format; 970 971 // A list of valid numeric literals for input and output: in the standard 972 // "C" locale, this is "-0123456789". This array contains the chars after 973 // having been passed through the current locale's ctype<_CharT>.widen(). 974 _CharT _M_atoms[money_base::_S_end]; 975 976 bool _M_allocated; 977 978 __moneypunct_cache(size_t __refs = 0) : facet(__refs), 979 _M_grouping(0), _M_grouping_size(0), _M_use_grouping(false), 980 _M_decimal_point(_CharT()), _M_thousands_sep(_CharT()), 981 _M_curr_symbol(0), _M_curr_symbol_size(0), 982 _M_positive_sign(0), _M_positive_sign_size(0), 983 _M_negative_sign(0), _M_negative_sign_size(0), 984 _M_frac_digits(0), 985 _M_pos_format(money_base::pattern()), 986 _M_neg_format(money_base::pattern()), _M_allocated(false) 987 { } 988 989 ~__moneypunct_cache(); 990 991 void 992 _M_cache(const locale& __loc); 993 994 private: 995 __moneypunct_cache& 996 operator=(const __moneypunct_cache&); 997 998 explicit 999 __moneypunct_cache(const __moneypunct_cache&); 1000 }; 1001 1002 template<typename _CharT, bool _Intl> 1003 __moneypunct_cache<_CharT, _Intl>::~__moneypunct_cache() 1004 { 1005 if (_M_allocated) 1006 { 1007 delete [] _M_grouping; 1008 delete [] _M_curr_symbol; 1009 delete [] _M_positive_sign; 1010 delete [] _M_negative_sign; 1011 } 1012 } 1013 1014 _GLIBCXX_BEGIN_NAMESPACE_CXX11 1015 1016 /** 1017 * @brief Primary class template moneypunct. 1018 * @ingroup locales 1019 * 1020 * This facet encapsulates the punctuation, grouping and other formatting 1021 * features of money amount string representations. 1022 */ 1023 template<typename _CharT, bool _Intl> 1024 class moneypunct : public locale::facet, public money_base 1025 { 1026 public: 1027 // Types: 1028 ///@{ 1029 /// Public typedefs 1030 typedef _CharT char_type; 1031 typedef basic_string<_CharT> string_type; 1032 ///@} 1033 typedef __moneypunct_cache<_CharT, _Intl> __cache_type; 1034 1035 private: 1036 __cache_type* _M_data; 1037 1038 public: 1039 /// This value is provided by the standard, but no reason for its 1040 /// existence. 1041 static const bool intl = _Intl; 1042 /// Numpunct facet id. 1043 static locale::id id; 1044 1045 /** 1046 * @brief Constructor performs initialization. 1047 * 1048 * This is the constructor provided by the standard. 1049 * 1050 * @param __refs Passed to the base facet class. 1051 */ 1052 explicit 1053 moneypunct(size_t __refs = 0) 1054 : facet(__refs), _M_data(0) 1055 { _M_initialize_moneypunct(); } 1056 1057 /** 1058 * @brief Constructor performs initialization. 1059 * 1060 * This is an internal constructor. 1061 * 1062 * @param __cache Cache for optimization. 1063 * @param __refs Passed to the base facet class. 1064 */ 1065 explicit 1066 moneypunct(__cache_type* __cache, size_t __refs = 0) 1067 : facet(__refs), _M_data(__cache) 1068 { _M_initialize_moneypunct(); } 1069 1070 /** 1071 * @brief Internal constructor. Not for general use. 1072 * 1073 * This is a constructor for use by the library itself to set up new 1074 * locales. 1075 * 1076 * @param __cloc The C locale. 1077 * @param __s The name of a locale. 1078 * @param __refs Passed to the base facet class. 1079 */ 1080 explicit 1081 moneypunct(__c_locale __cloc, const char* __s, size_t __refs = 0) 1082 : facet(__refs), _M_data(0) 1083 { _M_initialize_moneypunct(__cloc, __s); } 1084 1085 /** 1086 * @brief Return decimal point character. 1087 * 1088 * This function returns a char_type to use as a decimal point. It 1089 * does so by returning returning 1090 * moneypunct<char_type>::do_decimal_point(). 1091 * 1092 * @return @a char_type representing a decimal point. 1093 */ 1094 char_type 1095 decimal_point() const 1096 { return this->do_decimal_point(); } 1097 1098 /** 1099 * @brief Return thousands separator character. 1100 * 1101 * This function returns a char_type to use as a thousands 1102 * separator. It does so by returning returning 1103 * moneypunct<char_type>::do_thousands_sep(). 1104 * 1105 * @return char_type representing a thousands separator. 1106 */ 1107 char_type 1108 thousands_sep() const 1109 { return this->do_thousands_sep(); } 1110 1111 /** 1112 * @brief Return grouping specification. 1113 * 1114 * This function returns a string representing groupings for the 1115 * integer part of an amount. Groupings indicate where thousands 1116 * separators should be inserted. 1117 * 1118 * Each char in the return string is interpret as an integer rather 1119 * than a character. These numbers represent the number of digits in a 1120 * group. The first char in the string represents the number of digits 1121 * in the least significant group. If a char is negative, it indicates 1122 * an unlimited number of digits for the group. If more chars from the 1123 * string are required to group a number, the last char is used 1124 * repeatedly. 1125 * 1126 * For example, if the grouping() returns <code>\003\002</code> 1127 * and is applied to the number 123456789, this corresponds to 1128 * 12,34,56,789. Note that if the string was <code>32</code>, this would 1129 * put more than 50 digits into the least significant group if 1130 * the character set is ASCII. 1131 * 1132 * The string is returned by calling 1133 * moneypunct<char_type>::do_grouping(). 1134 * 1135 * @return string representing grouping specification. 1136 */ 1137 string 1138 grouping() const 1139 { return this->do_grouping(); } 1140 1141 /** 1142 * @brief Return currency symbol string. 1143 * 1144 * This function returns a string_type to use as a currency symbol. It 1145 * does so by returning returning 1146 * moneypunct<char_type>::do_curr_symbol(). 1147 * 1148 * @return @a string_type representing a currency symbol. 1149 */ 1150 string_type 1151 curr_symbol() const 1152 { return this->do_curr_symbol(); } 1153 1154 /** 1155 * @brief Return positive sign string. 1156 * 1157 * This function returns a string_type to use as a sign for positive 1158 * amounts. It does so by returning returning 1159 * moneypunct<char_type>::do_positive_sign(). 1160 * 1161 * If the return value contains more than one character, the first 1162 * character appears in the position indicated by pos_format() and the 1163 * remainder appear at the end of the formatted string. 1164 * 1165 * @return @a string_type representing a positive sign. 1166 */ 1167 string_type 1168 positive_sign() const 1169 { return this->do_positive_sign(); } 1170 1171 /** 1172 * @brief Return negative sign string. 1173 * 1174 * This function returns a string_type to use as a sign for negative 1175 * amounts. It does so by returning returning 1176 * moneypunct<char_type>::do_negative_sign(). 1177 * 1178 * If the return value contains more than one character, the first 1179 * character appears in the position indicated by neg_format() and the 1180 * remainder appear at the end of the formatted string. 1181 * 1182 * @return @a string_type representing a negative sign. 1183 */ 1184 string_type 1185 negative_sign() const 1186 { return this->do_negative_sign(); } 1187 1188 /** 1189 * @brief Return number of digits in fraction. 1190 * 1191 * This function returns the exact number of digits that make up the 1192 * fractional part of a money amount. It does so by returning 1193 * returning moneypunct<char_type>::do_frac_digits(). 1194 * 1195 * The fractional part of a money amount is optional. But if it is 1196 * present, there must be frac_digits() digits. 1197 * 1198 * @return Number of digits in amount fraction. 1199 */ 1200 int 1201 frac_digits() const 1202 { return this->do_frac_digits(); } 1203 1204 ///@{ 1205 /** 1206 * @brief Return pattern for money values. 1207 * 1208 * This function returns a pattern describing the formatting of a 1209 * positive or negative valued money amount. It does so by returning 1210 * returning moneypunct<char_type>::do_pos_format() or 1211 * moneypunct<char_type>::do_neg_format(). 1212 * 1213 * The pattern has 4 fields describing the ordering of symbol, sign, 1214 * value, and none or space. There must be one of each in the pattern. 1215 * The none and space enums may not appear in the first field and space 1216 * may not appear in the final field. 1217 * 1218 * The parts of a money string must appear in the order indicated by 1219 * the fields of the pattern. The symbol field indicates that the 1220 * value of curr_symbol() may be present. The sign field indicates 1221 * that the value of positive_sign() or negative_sign() must be 1222 * present. The value field indicates that the absolute value of the 1223 * money amount is present. none indicates 0 or more whitespace 1224 * characters, except at the end, where it permits no whitespace. 1225 * space indicates that 1 or more whitespace characters must be 1226 * present. 1227 * 1228 * For example, for the US locale and pos_format() pattern 1229 * {symbol,sign,value,none}, curr_symbol() == '$' 1230 * positive_sign() == '+', and value 10.01, and 1231 * options set to force the symbol, the corresponding string is 1232 * <code>$+10.01</code>. 1233 * 1234 * @return Pattern for money values. 1235 */ 1236 pattern 1237 pos_format() const 1238 { return this->do_pos_format(); } 1239 1240 pattern 1241 neg_format() const 1242 { return this->do_neg_format(); } 1243 ///@} 1244 1245 protected: 1246 /// Destructor. 1247 virtual 1248 ~moneypunct(); 1249 1250 /** 1251 * @brief Return decimal point character. 1252 * 1253 * Returns a char_type to use as a decimal point. This function is a 1254 * hook for derived classes to change the value returned. 1255 * 1256 * @return @a char_type representing a decimal point. 1257 */ 1258 virtual char_type 1259 do_decimal_point() const 1260 { return _M_data->_M_decimal_point; } 1261 1262 /** 1263 * @brief Return thousands separator character. 1264 * 1265 * Returns a char_type to use as a thousands separator. This function 1266 * is a hook for derived classes to change the value returned. 1267 * 1268 * @return @a char_type representing a thousands separator. 1269 */ 1270 virtual char_type 1271 do_thousands_sep() const 1272 { return _M_data->_M_thousands_sep; } 1273 1274 /** 1275 * @brief Return grouping specification. 1276 * 1277 * Returns a string representing groupings for the integer part of a 1278 * number. This function is a hook for derived classes to change the 1279 * value returned. @see grouping() for details. 1280 * 1281 * @return String representing grouping specification. 1282 */ 1283 virtual string 1284 do_grouping() const 1285 { return _M_data->_M_grouping; } 1286 1287 /** 1288 * @brief Return currency symbol string. 1289 * 1290 * This function returns a string_type to use as a currency symbol. 1291 * This function is a hook for derived classes to change the value 1292 * returned. @see curr_symbol() for details. 1293 * 1294 * @return @a string_type representing a currency symbol. 1295 */ 1296 virtual string_type 1297 do_curr_symbol() const 1298 { return _M_data->_M_curr_symbol; } 1299 1300 /** 1301 * @brief Return positive sign string. 1302 * 1303 * This function returns a string_type to use as a sign for positive 1304 * amounts. This function is a hook for derived classes to change the 1305 * value returned. @see positive_sign() for details. 1306 * 1307 * @return @a string_type representing a positive sign. 1308 */ 1309 virtual string_type 1310 do_positive_sign() const 1311 { return _M_data->_M_positive_sign; } 1312 1313 /** 1314 * @brief Return negative sign string. 1315 * 1316 * This function returns a string_type to use as a sign for negative 1317 * amounts. This function is a hook for derived classes to change the 1318 * value returned. @see negative_sign() for details. 1319 * 1320 * @return @a string_type representing a negative sign. 1321 */ 1322 virtual string_type 1323 do_negative_sign() const 1324 { return _M_data->_M_negative_sign; } 1325 1326 /** 1327 * @brief Return number of digits in fraction. 1328 * 1329 * This function returns the exact number of digits that make up the 1330 * fractional part of a money amount. This function is a hook for 1331 * derived classes to change the value returned. @see frac_digits() 1332 * for details. 1333 * 1334 * @return Number of digits in amount fraction. 1335 */ 1336 virtual int 1337 do_frac_digits() const 1338 { return _M_data->_M_frac_digits; } 1339 1340 /** 1341 * @brief Return pattern for money values. 1342 * 1343 * This function returns a pattern describing the formatting of a 1344 * positive valued money amount. This function is a hook for derived 1345 * classes to change the value returned. @see pos_format() for 1346 * details. 1347 * 1348 * @return Pattern for money values. 1349 */ 1350 virtual pattern 1351 do_pos_format() const 1352 { return _M_data->_M_pos_format; } 1353 1354 /** 1355 * @brief Return pattern for money values. 1356 * 1357 * This function returns a pattern describing the formatting of a 1358 * negative valued money amount. This function is a hook for derived 1359 * classes to change the value returned. @see neg_format() for 1360 * details. 1361 * 1362 * @return Pattern for money values. 1363 */ 1364 virtual pattern 1365 do_neg_format() const 1366 { return _M_data->_M_neg_format; } 1367 1368 // For use at construction time only. 1369 void 1370 _M_initialize_moneypunct(__c_locale __cloc = 0, 1371 const char* __name = 0); 1372 }; 1373 1374 template<typename _CharT, bool _Intl> 1375 locale::id moneypunct<_CharT, _Intl>::id; 1376 1377 template<typename _CharT, bool _Intl> 1378 const bool moneypunct<_CharT, _Intl>::intl; 1379 1380 template<> 1381 moneypunct<char, true>::~moneypunct(); 1382 1383 template<> 1384 moneypunct<char, false>::~moneypunct(); 1385 1386 template<> 1387 void 1388 moneypunct<char, true>::_M_initialize_moneypunct(__c_locale, const char*); 1389 1390 template<> 1391 void 1392 moneypunct<char, false>::_M_initialize_moneypunct(__c_locale, const char*); 1393 1394 #ifdef _GLIBCXX_USE_WCHAR_T 1395 template<> 1396 moneypunct<wchar_t, true>::~moneypunct(); 1397 1398 template<> 1399 moneypunct<wchar_t, false>::~moneypunct(); 1400 1401 template<> 1402 void 1403 moneypunct<wchar_t, true>::_M_initialize_moneypunct(__c_locale, 1404 const char*); 1405 1406 template<> 1407 void 1408 moneypunct<wchar_t, false>::_M_initialize_moneypunct(__c_locale, 1409 const char*); 1410 #endif 1411 1412 /// class moneypunct_byname [22.2.6.4]. 1413 template<typename _CharT, bool _Intl> 1414 class moneypunct_byname : public moneypunct<_CharT, _Intl> 1415 { 1416 public: 1417 typedef _CharT char_type; 1418 typedef basic_string<_CharT> string_type; 1419 1420 static const bool intl = _Intl; 1421 1422 explicit 1423 moneypunct_byname(const char* __s, size_t __refs = 0) 1424 : moneypunct<_CharT, _Intl>(__refs) 1425 { 1426 if (__builtin_strcmp(__s, "C") != 0 1427 && __builtin_strcmp(__s, "POSIX") != 0) 1428 { 1429 __c_locale __tmp; 1430 this->_S_create_c_locale(__tmp, __s); 1431 this->_M_initialize_moneypunct(__tmp); 1432 this->_S_destroy_c_locale(__tmp); 1433 } 1434 } 1435 1436 #if __cplusplus >= 201103L 1437 explicit 1438 moneypunct_byname(const string& __s, size_t __refs = 0) 1439 : moneypunct_byname(__s.c_str(), __refs) { } 1440 #endif 1441 1442 protected: 1443 virtual 1444 ~moneypunct_byname() { } 1445 }; 1446 1447 template<typename _CharT, bool _Intl> 1448 const bool moneypunct_byname<_CharT, _Intl>::intl; 1449 1450 _GLIBCXX_END_NAMESPACE_CXX11 1451 1452 _GLIBCXX_BEGIN_NAMESPACE_LDBL_OR_CXX11 1453 1454 /** 1455 * @brief Primary class template money_get. 1456 * @ingroup locales 1457 * 1458 * This facet encapsulates the code to parse and return a monetary 1459 * amount from a string. 1460 * 1461 * The money_get template uses protected virtual functions to 1462 * provide the actual results. The public accessors forward the 1463 * call to the virtual functions. These virtual functions are 1464 * hooks for developers to implement the behavior they require from 1465 * the money_get facet. 1466 */ 1467 template<typename _CharT, typename _InIter> 1468 class money_get : public locale::facet 1469 { 1470 public: 1471 // Types: 1472 ///@{ 1473 /// Public typedefs 1474 typedef _CharT char_type; 1475 typedef _InIter iter_type; 1476 typedef basic_string<_CharT> string_type; 1477 ///@} 1478 1479 /// Numpunct facet id. 1480 static locale::id id; 1481 1482 /** 1483 * @brief Constructor performs initialization. 1484 * 1485 * This is the constructor provided by the standard. 1486 * 1487 * @param __refs Passed to the base facet class. 1488 */ 1489 explicit 1490 money_get(size_t __refs = 0) : facet(__refs) { } 1491 1492 /** 1493 * @brief Read and parse a monetary value. 1494 * 1495 * This function reads characters from @a __s, interprets them as a 1496 * monetary value according to moneypunct and ctype facets retrieved 1497 * from io.getloc(), and returns the result in @a units as an integral 1498 * value moneypunct::frac_digits() * the actual amount. For example, 1499 * the string $10.01 in a US locale would store 1001 in @a units. 1500 * 1501 * Any characters not part of a valid money amount are not consumed. 1502 * 1503 * If a money value cannot be parsed from the input stream, sets 1504 * err=(err|io.failbit). If the stream is consumed before finishing 1505 * parsing, sets err=(err|io.failbit|io.eofbit). @a units is 1506 * unchanged if parsing fails. 1507 * 1508 * This function works by returning the result of do_get(). 1509 * 1510 * @param __s Start of characters to parse. 1511 * @param __end End of characters to parse. 1512 * @param __intl Parameter to use_facet<moneypunct<CharT,intl> >. 1513 * @param __io Source of facets and io state. 1514 * @param __err Error field to set if parsing fails. 1515 * @param __units Place to store result of parsing. 1516 * @return Iterator referencing first character beyond valid money 1517 * amount. 1518 */ 1519 iter_type 1520 get(iter_type __s, iter_type __end, bool __intl, ios_base& __io, 1521 ios_base::iostate& __err, long double& __units) const 1522 { return this->do_get(__s, __end, __intl, __io, __err, __units); } 1523 1524 /** 1525 * @brief Read and parse a monetary value. 1526 * 1527 * This function reads characters from @a __s, interprets them as 1528 * a monetary value according to moneypunct and ctype facets 1529 * retrieved from io.getloc(), and returns the result in @a 1530 * digits. For example, the string $10.01 in a US locale would 1531 * store <code>1001</code> in @a digits. 1532 * 1533 * Any characters not part of a valid money amount are not consumed. 1534 * 1535 * If a money value cannot be parsed from the input stream, sets 1536 * err=(err|io.failbit). If the stream is consumed before finishing 1537 * parsing, sets err=(err|io.failbit|io.eofbit). 1538 * 1539 * This function works by returning the result of do_get(). 1540 * 1541 * @param __s Start of characters to parse. 1542 * @param __end End of characters to parse. 1543 * @param __intl Parameter to use_facet<moneypunct<CharT,intl> >. 1544 * @param __io Source of facets and io state. 1545 * @param __err Error field to set if parsing fails. 1546 * @param __digits Place to store result of parsing. 1547 * @return Iterator referencing first character beyond valid money 1548 * amount. 1549 */ 1550 iter_type 1551 get(iter_type __s, iter_type __end, bool __intl, ios_base& __io, 1552 ios_base::iostate& __err, string_type& __digits) const 1553 { return this->do_get(__s, __end, __intl, __io, __err, __digits); } 1554 1555 protected: 1556 /// Destructor. 1557 virtual 1558 ~money_get() { } 1559 1560 /** 1561 * @brief Read and parse a monetary value. 1562 * 1563 * This function reads and parses characters representing a monetary 1564 * value. This function is a hook for derived classes to change the 1565 * value returned. @see get() for details. 1566 */ 1567 // XXX GLIBCXX_ABI Deprecated 1568 #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ \ 1569 && (_GLIBCXX_USE_CXX11_ABI == 0 || defined __LONG_DOUBLE_IEEE128__) 1570 virtual iter_type 1571 __do_get(iter_type __s, iter_type __end, bool __intl, ios_base& __io, 1572 ios_base::iostate& __err, double& __units) const; 1573 #else 1574 virtual iter_type 1575 do_get(iter_type __s, iter_type __end, bool __intl, ios_base& __io, 1576 ios_base::iostate& __err, long double& __units) const; 1577 #endif 1578 1579 /** 1580 * @brief Read and parse a monetary value. 1581 * 1582 * This function reads and parses characters representing a monetary 1583 * value. This function is a hook for derived classes to change the 1584 * value returned. @see get() for details. 1585 */ 1586 virtual iter_type 1587 do_get(iter_type __s, iter_type __end, bool __intl, ios_base& __io, 1588 ios_base::iostate& __err, string_type& __digits) const; 1589 1590 // XXX GLIBCXX_ABI Deprecated 1591 #if defined _GLIBCXX_LONG_DOUBLE_ALT128_COMPAT \ 1592 && defined __LONG_DOUBLE_IEEE128__ 1593 virtual iter_type 1594 __do_get(iter_type __s, iter_type __end, bool __intl, ios_base& __io, 1595 ios_base::iostate& __err, __ibm128& __units) const; 1596 #endif 1597 1598 // XXX GLIBCXX_ABI Deprecated 1599 #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ \ 1600 && (_GLIBCXX_USE_CXX11_ABI == 0 || defined __LONG_DOUBLE_IEEE128__) 1601 virtual iter_type 1602 do_get(iter_type __s, iter_type __end, bool __intl, ios_base& __io, 1603 ios_base::iostate& __err, long double& __units) const; 1604 #endif 1605 1606 template<bool _Intl> 1607 iter_type 1608 _M_extract(iter_type __s, iter_type __end, ios_base& __io, 1609 ios_base::iostate& __err, string& __digits) const; 1610 }; 1611 1612 template<typename _CharT, typename _InIter> 1613 locale::id money_get<_CharT, _InIter>::id; 1614 1615 /** 1616 * @brief Primary class template money_put. 1617 * @ingroup locales 1618 * 1619 * This facet encapsulates the code to format and output a monetary 1620 * amount. 1621 * 1622 * The money_put template uses protected virtual functions to 1623 * provide the actual results. The public accessors forward the 1624 * call to the virtual functions. These virtual functions are 1625 * hooks for developers to implement the behavior they require from 1626 * the money_put facet. 1627 */ 1628 template<typename _CharT, typename _OutIter> 1629 class money_put : public locale::facet 1630 { 1631 public: 1632 ///@{ 1633 /// Public typedefs 1634 typedef _CharT char_type; 1635 typedef _OutIter iter_type; 1636 typedef basic_string<_CharT> string_type; 1637 ///@} 1638 1639 /// Numpunct facet id. 1640 static locale::id id; 1641 1642 /** 1643 * @brief Constructor performs initialization. 1644 * 1645 * This is the constructor provided by the standard. 1646 * 1647 * @param __refs Passed to the base facet class. 1648 */ 1649 explicit 1650 money_put(size_t __refs = 0) : facet(__refs) { } 1651 1652 /** 1653 * @brief Format and output a monetary value. 1654 * 1655 * This function formats @a units as a monetary value according to 1656 * moneypunct and ctype facets retrieved from io.getloc(), and writes 1657 * the resulting characters to @a __s. For example, the value 1001 in a 1658 * US locale would write <code>$10.01</code> to @a __s. 1659 * 1660 * This function works by returning the result of do_put(). 1661 * 1662 * @param __s The stream to write to. 1663 * @param __intl Parameter to use_facet<moneypunct<CharT,intl> >. 1664 * @param __io Source of facets and io state. 1665 * @param __fill char_type to use for padding. 1666 * @param __units Place to store result of parsing. 1667 * @return Iterator after writing. 1668 */ 1669 iter_type 1670 put(iter_type __s, bool __intl, ios_base& __io, 1671 char_type __fill, long double __units) const 1672 { return this->do_put(__s, __intl, __io, __fill, __units); } 1673 1674 /** 1675 * @brief Format and output a monetary value. 1676 * 1677 * This function formats @a digits as a monetary value 1678 * according to moneypunct and ctype facets retrieved from 1679 * io.getloc(), and writes the resulting characters to @a __s. 1680 * For example, the string <code>1001</code> in a US locale 1681 * would write <code>$10.01</code> to @a __s. 1682 * 1683 * This function works by returning the result of do_put(). 1684 * 1685 * @param __s The stream to write to. 1686 * @param __intl Parameter to use_facet<moneypunct<CharT,intl> >. 1687 * @param __io Source of facets and io state. 1688 * @param __fill char_type to use for padding. 1689 * @param __digits Place to store result of parsing. 1690 * @return Iterator after writing. 1691 */ 1692 iter_type 1693 put(iter_type __s, bool __intl, ios_base& __io, 1694 char_type __fill, const string_type& __digits) const 1695 { return this->do_put(__s, __intl, __io, __fill, __digits); } 1696 1697 protected: 1698 /// Destructor. 1699 virtual 1700 ~money_put() { } 1701 1702 /** 1703 * @brief Format and output a monetary value. 1704 * 1705 * This function formats @a units as a monetary value according to 1706 * moneypunct and ctype facets retrieved from io.getloc(), and writes 1707 * the resulting characters to @a __s. For example, the value 1001 in a 1708 * US locale would write <code>$10.01</code> to @a __s. 1709 * 1710 * This function is a hook for derived classes to change the value 1711 * returned. @see put(). 1712 * 1713 * @param __s The stream to write to. 1714 * @param __intl Parameter to use_facet<moneypunct<CharT,intl> >. 1715 * @param __io Source of facets and io state. 1716 * @param __fill char_type to use for padding. 1717 * @param __units Place to store result of parsing. 1718 * @return Iterator after writing. 1719 */ 1720 // XXX GLIBCXX_ABI Deprecated 1721 #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ \ 1722 && (_GLIBCXX_USE_CXX11_ABI == 0 || defined __LONG_DOUBLE_IEEE128__) 1723 virtual iter_type 1724 __do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill, 1725 double __units) const; 1726 #else 1727 virtual iter_type 1728 do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill, 1729 long double __units) const; 1730 #endif 1731 1732 /** 1733 * @brief Format and output a monetary value. 1734 * 1735 * This function formats @a digits as a monetary value 1736 * according to moneypunct and ctype facets retrieved from 1737 * io.getloc(), and writes the resulting characters to @a __s. 1738 * For example, the string <code>1001</code> in a US locale 1739 * would write <code>$10.01</code> to @a __s. 1740 * 1741 * This function is a hook for derived classes to change the value 1742 * returned. @see put(). 1743 * 1744 * @param __s The stream to write to. 1745 * @param __intl Parameter to use_facet<moneypunct<CharT,intl> >. 1746 * @param __io Source of facets and io state. 1747 * @param __fill char_type to use for padding. 1748 * @param __digits Place to store result of parsing. 1749 * @return Iterator after writing. 1750 */ 1751 virtual iter_type 1752 do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill, 1753 const string_type& __digits) const; 1754 1755 // XXX GLIBCXX_ABI Deprecated 1756 #if defined _GLIBCXX_LONG_DOUBLE_ALT128_COMPAT \ 1757 && defined __LONG_DOUBLE_IEEE128__ 1758 virtual iter_type 1759 __do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill, 1760 __ibm128 __units) const; 1761 #endif 1762 1763 // XXX GLIBCXX_ABI Deprecated 1764 #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ \ 1765 && (_GLIBCXX_USE_CXX11_ABI == 0 || defined __LONG_DOUBLE_IEEE128__) 1766 virtual iter_type 1767 do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill, 1768 long double __units) const; 1769 #endif 1770 1771 template<bool _Intl> 1772 iter_type 1773 _M_insert(iter_type __s, ios_base& __io, char_type __fill, 1774 const string_type& __digits) const; 1775 }; 1776 1777 template<typename _CharT, typename _OutIter> 1778 locale::id money_put<_CharT, _OutIter>::id; 1779 1780 _GLIBCXX_END_NAMESPACE_LDBL_OR_CXX11 1781 1782 /** 1783 * @brief Messages facet base class providing catalog typedef. 1784 * @ingroup locales 1785 */ 1786 struct messages_base 1787 { 1788 typedef int catalog; 1789 }; 1790 1791 _GLIBCXX_BEGIN_NAMESPACE_CXX11 1792 1793 /** 1794 * @brief Primary class template messages. 1795 * @ingroup locales 1796 * 1797 * This facet encapsulates the code to retrieve messages from 1798 * message catalogs. The only thing defined by the standard for this facet 1799 * is the interface. All underlying functionality is 1800 * implementation-defined. 1801 * 1802 * This library currently implements 3 versions of the message facet. The 1803 * first version (gnu) is a wrapper around gettext, provided by libintl. 1804 * The second version (ieee) is a wrapper around catgets. The final 1805 * version (default) does no actual translation. These implementations are 1806 * only provided for char and wchar_t instantiations. 1807 * 1808 * The messages template uses protected virtual functions to 1809 * provide the actual results. The public accessors forward the 1810 * call to the virtual functions. These virtual functions are 1811 * hooks for developers to implement the behavior they require from 1812 * the messages facet. 1813 */ 1814 template<typename _CharT> 1815 class messages : public locale::facet, public messages_base 1816 { 1817 public: 1818 // Types: 1819 ///@{ 1820 /// Public typedefs 1821 typedef _CharT char_type; 1822 typedef basic_string<_CharT> string_type; 1823 ///@} 1824 1825 protected: 1826 // Underlying "C" library locale information saved from 1827 // initialization, needed by messages_byname as well. 1828 __c_locale _M_c_locale_messages; 1829 const char* _M_name_messages; 1830 1831 public: 1832 /// Numpunct facet id. 1833 static locale::id id; 1834 1835 /** 1836 * @brief Constructor performs initialization. 1837 * 1838 * This is the constructor provided by the standard. 1839 * 1840 * @param __refs Passed to the base facet class. 1841 */ 1842 explicit 1843 messages(size_t __refs = 0); 1844 1845 // Non-standard. 1846 /** 1847 * @brief Internal constructor. Not for general use. 1848 * 1849 * This is a constructor for use by the library itself to set up new 1850 * locales. 1851 * 1852 * @param __cloc The C locale. 1853 * @param __s The name of a locale. 1854 * @param __refs Refcount to pass to the base class. 1855 */ 1856 explicit 1857 messages(__c_locale __cloc, const char* __s, size_t __refs = 0); 1858 1859 /* 1860 * @brief Open a message catalog. 1861 * 1862 * This function opens and returns a handle to a message catalog by 1863 * returning do_open(__s, __loc). 1864 * 1865 * @param __s The catalog to open. 1866 * @param __loc Locale to use for character set conversions. 1867 * @return Handle to the catalog or value < 0 if open fails. 1868 */ 1869 catalog 1870 open(const basic_string<char>& __s, const locale& __loc) const 1871 { return this->do_open(__s, __loc); } 1872 1873 // Non-standard and unorthodox, yet effective. 1874 /* 1875 * @brief Open a message catalog. 1876 * 1877 * This non-standard function opens and returns a handle to a message 1878 * catalog by returning do_open(s, loc). The third argument provides a 1879 * message catalog root directory for gnu gettext and is ignored 1880 * otherwise. 1881 * 1882 * @param __s The catalog to open. 1883 * @param __loc Locale to use for character set conversions. 1884 * @param __dir Message catalog root directory. 1885 * @return Handle to the catalog or value < 0 if open fails. 1886 */ 1887 catalog 1888 open(const basic_string<char>&, const locale&, const char*) const; 1889 1890 /* 1891 * @brief Look up a string in a message catalog. 1892 * 1893 * This function retrieves and returns a message from a catalog by 1894 * returning do_get(c, set, msgid, s). 1895 * 1896 * For gnu, @a __set and @a msgid are ignored. Returns gettext(s). 1897 * For default, returns s. For ieee, returns catgets(c,set,msgid,s). 1898 * 1899 * @param __c The catalog to access. 1900 * @param __set Implementation-defined. 1901 * @param __msgid Implementation-defined. 1902 * @param __s Default return value if retrieval fails. 1903 * @return Retrieved message or @a __s if get fails. 1904 */ 1905 string_type 1906 get(catalog __c, int __set, int __msgid, const string_type& __s) const 1907 { return this->do_get(__c, __set, __msgid, __s); } 1908 1909 /* 1910 * @brief Close a message catalog. 1911 * 1912 * Closes catalog @a c by calling do_close(c). 1913 * 1914 * @param __c The catalog to close. 1915 */ 1916 void 1917 close(catalog __c) const 1918 { return this->do_close(__c); } 1919 1920 protected: 1921 /// Destructor. 1922 virtual 1923 ~messages(); 1924 1925 /* 1926 * @brief Open a message catalog. 1927 * 1928 * This function opens and returns a handle to a message catalog in an 1929 * implementation-defined manner. This function is a hook for derived 1930 * classes to change the value returned. 1931 * 1932 * @param __s The catalog to open. 1933 * @param __loc Locale to use for character set conversions. 1934 * @return Handle to the opened catalog, value < 0 if open failed. 1935 */ 1936 virtual catalog 1937 do_open(const basic_string<char>&, const locale&) const; 1938 1939 /* 1940 * @brief Look up a string in a message catalog. 1941 * 1942 * This function retrieves and returns a message from a catalog in an 1943 * implementation-defined manner. This function is a hook for derived 1944 * classes to change the value returned. 1945 * 1946 * For gnu, @a __set and @a __msgid are ignored. Returns gettext(s). 1947 * For default, returns s. For ieee, returns catgets(c,set,msgid,s). 1948 * 1949 * @param __c The catalog to access. 1950 * @param __set Implementation-defined. 1951 * @param __msgid Implementation-defined. 1952 * @param __s Default return value if retrieval fails. 1953 * @return Retrieved message or @a __s if get fails. 1954 */ 1955 virtual string_type 1956 do_get(catalog, int, int, const string_type& __dfault) const; 1957 1958 /* 1959 * @brief Close a message catalog. 1960 * 1961 * @param __c The catalog to close. 1962 */ 1963 virtual void 1964 do_close(catalog) const; 1965 1966 // Returns a locale and codeset-converted string, given a char* message. 1967 char* 1968 _M_convert_to_char(const string_type& __msg) const 1969 { 1970 // XXX 1971 return reinterpret_cast<char*>(const_cast<_CharT*>(__msg.c_str())); 1972 } 1973 1974 // Returns a locale and codeset-converted string, given a char* message. 1975 string_type 1976 _M_convert_from_char(char*) const 1977 { 1978 // XXX 1979 return string_type(); 1980 } 1981 }; 1982 1983 template<typename _CharT> 1984 locale::id messages<_CharT>::id; 1985 1986 /// Specializations for required instantiations. 1987 template<> 1988 string 1989 messages<char>::do_get(catalog, int, int, const string&) const; 1990 1991 #ifdef _GLIBCXX_USE_WCHAR_T 1992 template<> 1993 wstring 1994 messages<wchar_t>::do_get(catalog, int, int, const wstring&) const; 1995 #endif 1996 1997 /// class messages_byname [22.2.7.2]. 1998 template<typename _CharT> 1999 class messages_byname : public messages<_CharT> 2000 { 2001 public: 2002 typedef _CharT char_type; 2003 typedef basic_string<_CharT> string_type; 2004 2005 explicit 2006 messages_byname(const char* __s, size_t __refs = 0); 2007 2008 #if __cplusplus >= 201103L 2009 explicit 2010 messages_byname(const string& __s, size_t __refs = 0) 2011 : messages_byname(__s.c_str(), __refs) { } 2012 #endif 2013 2014 protected: 2015 virtual 2016 ~messages_byname() 2017 { } 2018 }; 2019 2020 _GLIBCXX_END_NAMESPACE_CXX11 2021 2022 _GLIBCXX_END_NAMESPACE_VERSION 2023 } // namespace 2024 2025 // Include host and configuration specific messages functions. 2026 #include <bits/messages_members.h> 2027 2028 // 22.2.1.5 Template class codecvt 2029 #include <bits/codecvt.h> 2030 2031 #include <bits/locale_facets_nonio.tcc> 2032 2033 #endif
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