locale_facets.tcc revision 107606
1// Locale support -*- C++ -*- 2 3// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002 4// Free Software Foundation, Inc. 5// 6// This file is part of the GNU ISO C++ Library. This library is free 7// software; you can redistribute it and/or modify it under the 8// terms of the GNU General Public License as published by the 9// Free Software Foundation; either version 2, or (at your option) 10// any later version. 11 12// This library is distributed in the hope that it will be useful, 13// but WITHOUT ANY WARRANTY; without even the implied warranty of 14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15// GNU General Public License for more details. 16 17// You should have received a copy of the GNU General Public License along 18// with this library; see the file COPYING. If not, write to the Free 19// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, 20// USA. 21 22// As a special exception, you may use this file as part of a free software 23// library without restriction. Specifically, if other files instantiate 24// templates or use macros or inline functions from this file, or you compile 25// this file and link it with other files to produce an executable, this 26// file does not by itself cause the resulting executable to be covered by 27// the GNU General Public License. This exception does not however 28// invalidate any other reasons why the executable file might be covered by 29// the GNU General Public License. 30 31// Warning: this file is not meant for user inclusion. Use <locale>. 32 33#ifndef _CPP_BITS_LOCFACETS_TCC 34#define _CPP_BITS_LOCFACETS_TCC 1 35 36#pragma GCC system_header 37 38#include <cerrno> 39#include <clocale> // For localeconv 40#include <cstdlib> // For strof, strtold 41#include <cmath> // For ceil 42#include <cctype> // For isspace 43#include <limits> // For numeric_limits 44#include <bits/streambuf_iterator.h> 45#include <typeinfo> // For bad_cast. 46 47namespace std 48{ 49 template<typename _Facet> 50 locale 51 locale::combine(const locale& __other) const 52 { 53 _Impl* __tmp = new _Impl(*_M_impl, 1); 54 __tmp->_M_replace_facet(__other._M_impl, &_Facet::id); 55 return locale(__tmp); 56 } 57 58 template<typename _CharT, typename _Traits, typename _Alloc> 59 bool 60 locale::operator()(const basic_string<_CharT, _Traits, _Alloc>& __s1, 61 const basic_string<_CharT, _Traits, _Alloc>& __s2) const 62 { 63 typedef std::collate<_CharT> __collate_type; 64 const __collate_type& __collate = use_facet<__collate_type>(*this); 65 return (__collate.compare(__s1.data(), __s1.data() + __s1.length(), 66 __s2.data(), __s2.data() + __s2.length()) < 0); 67 } 68 69 template<typename _Facet> 70 const _Facet& 71 use_facet(const locale& __loc) 72 { 73 size_t __i = _Facet::id._M_id(); 74 locale::facet** __facets = __loc._M_impl->_M_facets; 75 if (!(__i < __loc._M_impl->_M_facets_size && __facets[__i])) 76 __throw_bad_cast(); 77 return static_cast<const _Facet&>(*__facets[__i]); 78 } 79 80 template<typename _Facet> 81 bool 82 has_facet(const locale& __loc) throw() 83 { 84 size_t __i = _Facet::id._M_id(); 85 locale::facet** __facets = __loc._M_impl->_M_facets; 86 return (__i < __loc._M_impl->_M_facets_size && __facets[__i]); 87 } 88 89 90 // Stage 1: Determine a conversion specifier. 91 template<typename _CharT, typename _InIter> 92 _InIter 93 num_get<_CharT, _InIter>:: 94 _M_extract_float(_InIter __beg, _InIter __end, ios_base& __io, 95 ios_base::iostate& __err, string& __xtrc) const 96 { 97 typedef char_traits<_CharT> __traits_type; 98 const locale __loc = __io.getloc(); 99 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 100 const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc); 101 102 // First check for sign. 103 const char_type __plus = __ctype.widen('+'); 104 const char_type __minus = __ctype.widen('-'); 105 int __pos = 0; 106 char_type __c = *__beg; 107 if ((__traits_type::eq(__c, __plus) || __traits_type::eq(__c, __minus)) 108 && __beg != __end) 109 { 110 __xtrc += __ctype.narrow(__c, char()); 111 ++__pos; 112 __c = *(++__beg); 113 } 114 115 // Next, strip leading zeros. 116 const char_type __zero = __ctype.widen(_S_atoms[_M_zero]); 117 bool __found_zero = false; 118 while (__traits_type::eq(__c, __zero) && __beg != __end) 119 { 120 __c = *(++__beg); 121 __found_zero = true; 122 } 123 if (__found_zero) 124 { 125 __xtrc += _S_atoms[_M_zero]; 126 ++__pos; 127 } 128 129 // Only need acceptable digits for floating point numbers. 130 const size_t __len = _M_E - _M_zero + 1; 131 char_type __watoms[__len]; 132 __ctype.widen(_S_atoms, _S_atoms + __len, __watoms); 133 bool __found_dec = false; 134 bool __found_sci = false; 135 const char_type __dec = __np.decimal_point(); 136 137 string __found_grouping; 138 const string __grouping = __np.grouping(); 139 bool __check_grouping = __grouping.size(); 140 int __sep_pos = 0; 141 const char_type __sep = __np.thousands_sep(); 142 143 while (__beg != __end) 144 { 145 // Only look in digits. 146 const char_type* __p = __traits_type::find(__watoms, 10, __c); 147 148 // NB: strchr returns true for __c == 0x0 149 if (__p && !__traits_type::eq(__c, char_type())) 150 { 151 // Try first for acceptable digit; record it if found. 152 ++__pos; 153 __xtrc += _S_atoms[__p - __watoms]; 154 ++__sep_pos; 155 __c = *(++__beg); 156 } 157 else if (__traits_type::eq(__c, __sep) 158 && __check_grouping && !__found_dec) 159 { 160 // NB: Thousands separator at the beginning of a string 161 // is a no-no, as is two consecutive thousands separators. 162 if (__sep_pos) 163 { 164 __found_grouping += static_cast<char>(__sep_pos); 165 __sep_pos = 0; 166 __c = *(++__beg); 167 } 168 else 169 { 170 __err |= ios_base::failbit; 171 break; 172 } 173 } 174 else if (__traits_type::eq(__c, __dec) && !__found_dec) 175 { 176 // According to the standard, if no grouping chars are seen, 177 // no grouping check is applied. Therefore __found_grouping 178 // must be adjusted only if __dec comes after some __sep. 179 if (__found_grouping.size()) 180 __found_grouping += static_cast<char>(__sep_pos); 181 ++__pos; 182 __xtrc += '.'; 183 __c = *(++__beg); 184 __found_dec = true; 185 } 186 else if ((__traits_type::eq(__c, __watoms[_M_e]) 187 || __traits_type::eq(__c, __watoms[_M_E])) 188 && !__found_sci && __pos) 189 { 190 // Scientific notation. 191 ++__pos; 192 __xtrc += __ctype.narrow(__c, char()); 193 __c = *(++__beg); 194 195 // Remove optional plus or minus sign, if they exist. 196 if (__traits_type::eq(__c, __plus) 197 || __traits_type::eq(__c, __minus)) 198 { 199 ++__pos; 200 __xtrc += __ctype.narrow(__c, char()); 201 __c = *(++__beg); 202 } 203 __found_sci = true; 204 } 205 else 206 // Not a valid input item. 207 break; 208 } 209 210 // Digit grouping is checked. If grouping and found_grouping don't 211 // match, then get very very upset, and set failbit. 212 if (__check_grouping && __found_grouping.size()) 213 { 214 // Add the ending grouping if a decimal wasn't found. 215 if (!__found_dec) 216 __found_grouping += static_cast<char>(__sep_pos); 217 if (!__verify_grouping(__grouping, __found_grouping)) 218 __err |= ios_base::failbit; 219 } 220 221 // Finish up 222 __xtrc += char(); 223 if (__beg == __end) 224 __err |= ios_base::eofbit; 225 return __beg; 226 } 227 228 // Stage 1: Determine a conversion specifier. 229 template<typename _CharT, typename _InIter> 230 _InIter 231 num_get<_CharT, _InIter>:: 232 _M_extract_int(_InIter __beg, _InIter __end, ios_base& __io, 233 ios_base::iostate& __err, string& __xtrc, int& __base) const 234 { 235 typedef char_traits<_CharT> __traits_type; 236 const locale __loc = __io.getloc(); 237 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 238 const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc); 239 240 // NB: Iff __basefield == 0, this can change based on contents. 241 ios_base::fmtflags __basefield = __io.flags() & ios_base::basefield; 242 if (__basefield == ios_base::oct) 243 __base = 8; 244 else if (__basefield == ios_base::hex) 245 __base = 16; 246 else 247 __base = 10; 248 249 // First check for sign. 250 int __pos = 0; 251 char_type __c = *__beg; 252 const char_type __plus = __ctype.widen('+'); 253 const char_type __minus = __ctype.widen('-'); 254 255 if ((__traits_type::eq(__c, __plus) || __traits_type::eq(__c, __minus)) 256 && __beg != __end) 257 { 258 __xtrc += __ctype.narrow(__c, char()); 259 ++__pos; 260 __c = *(++__beg); 261 } 262 263 // Next, strip leading zeros and check required digits for base formats. 264 const char_type __zero = __ctype.widen(_S_atoms[_M_zero]); 265 const char_type __x = __ctype.widen('x'); 266 const char_type __X = __ctype.widen('X'); 267 if (__base == 10) 268 { 269 bool __found_zero = false; 270 while (__traits_type::eq(__c, __zero) && __beg != __end) 271 { 272 __c = *(++__beg); 273 __found_zero = true; 274 } 275 if (__found_zero) 276 { 277 __xtrc += _S_atoms[_M_zero]; 278 ++__pos; 279 if (__basefield == 0) 280 { 281 if ((__traits_type::eq(__c, __x) 282 || __traits_type::eq(__c, __X)) 283 && __beg != __end) 284 { 285 __xtrc += __ctype.narrow(__c, char()); 286 ++__pos; 287 __c = *(++__beg); 288 __base = 16; 289 } 290 else 291 __base = 8; 292 } 293 } 294 } 295 else if (__base == 16) 296 { 297 if (__traits_type::eq(__c, __zero) && __beg != __end) 298 { 299 __xtrc += _S_atoms[_M_zero]; 300 ++__pos; 301 __c = *(++__beg); 302 if ((__traits_type::eq(__c, __x) || __traits_type::eq(__c, __X)) 303 && __beg != __end) 304 { 305 __xtrc += __ctype.narrow(__c, char()); 306 ++__pos; 307 __c = *(++__beg); 308 } 309 } 310 } 311 312 // At this point, base is determined. If not hex, only allow 313 // base digits as valid input. 314 size_t __len; 315 if (__base == 16) 316 __len = _M_size; 317 else 318 __len = __base; 319 320 // Extract. 321 char_type __watoms[_M_size]; 322 __ctype.widen(_S_atoms, _S_atoms + __len, __watoms); 323 string __found_grouping; 324 const string __grouping = __np.grouping(); 325 bool __check_grouping = __grouping.size(); 326 int __sep_pos = 0; 327 const char_type __sep = __np.thousands_sep(); 328 while (__beg != __end) 329 { 330 const char_type* __p = __traits_type::find(__watoms, __len, __c); 331 332 // NB: strchr returns true for __c == 0x0 333 if (__p && !__traits_type::eq(__c, char_type())) 334 { 335 // Try first for acceptable digit; record it if found. 336 __xtrc += _S_atoms[__p - __watoms]; 337 ++__pos; 338 ++__sep_pos; 339 __c = *(++__beg); 340 } 341 else if (__traits_type::eq(__c, __sep) && __check_grouping) 342 { 343 // NB: Thousands separator at the beginning of a string 344 // is a no-no, as is two consecutive thousands separators. 345 if (__sep_pos) 346 { 347 __found_grouping += static_cast<char>(__sep_pos); 348 __sep_pos = 0; 349 __c = *(++__beg); 350 } 351 else 352 { 353 __err |= ios_base::failbit; 354 break; 355 } 356 } 357 else 358 // Not a valid input item. 359 break; 360 } 361 362 // Digit grouping is checked. If grouping and found_grouping don't 363 // match, then get very very upset, and set failbit. 364 if (__check_grouping && __found_grouping.size()) 365 { 366 // Add the ending grouping. 367 __found_grouping += static_cast<char>(__sep_pos); 368 if (!__verify_grouping(__grouping, __found_grouping)) 369 __err |= ios_base::failbit; 370 } 371 372 // Finish up. 373 __xtrc += char(); 374 if (__beg == __end) 375 __err |= ios_base::eofbit; 376 return __beg; 377 } 378 379#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS 380 //17. Bad bool parsing 381 template<typename _CharT, typename _InIter> 382 _InIter 383 num_get<_CharT, _InIter>:: 384 do_get(iter_type __beg, iter_type __end, ios_base& __io, 385 ios_base::iostate& __err, bool& __v) const 386 { 387 // Parse bool values as unsigned long 388 if (!(__io.flags() & ios_base::boolalpha)) 389 { 390 // NB: We can't just call do_get(long) here, as it might 391 // refer to a derived class. 392 string __xtrc; 393 int __base; 394 __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base); 395 396 unsigned long __ul; 397 __convert_to_v(__xtrc.c_str(), __ul, __err, _S_c_locale, __base); 398 if (!(__err & ios_base::failbit) && __ul <= 1) 399 __v = __ul; 400 else 401 __err |= ios_base::failbit; 402 } 403 404 // Parse bool values as alphanumeric 405 else 406 { 407 typedef char_traits<_CharT> __traits_type; 408 typedef basic_string<_CharT> __string_type; 409 410 locale __loc = __io.getloc(); 411 const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc); 412 const __string_type __true = __np.truename(); 413 const __string_type __false = __np.falsename(); 414 const char_type* __trues = __true.c_str(); 415 const char_type* __falses = __false.c_str(); 416 const size_t __truen = __true.size() - 1; 417 const size_t __falsen = __false.size() - 1; 418 419 for (size_t __n = 0; __beg != __end; ++__n) 420 { 421 char_type __c = *__beg++; 422 bool __testf = __n <= __falsen 423 ? __traits_type::eq(__c, __falses[__n]) : false; 424 bool __testt = __n <= __truen 425 ? __traits_type::eq(__c, __trues[__n]) : false; 426 if (!(__testf || __testt)) 427 { 428 __err |= ios_base::failbit; 429 break; 430 } 431 else if (__testf && __n == __falsen) 432 { 433 __v = 0; 434 break; 435 } 436 else if (__testt && __n == __truen) 437 { 438 __v = 1; 439 break; 440 } 441 } 442 if (__beg == __end) 443 __err |= ios_base::eofbit; 444 } 445 return __beg; 446 } 447#endif 448 449 template<typename _CharT, typename _InIter> 450 _InIter 451 num_get<_CharT, _InIter>:: 452 do_get(iter_type __beg, iter_type __end, ios_base& __io, 453 ios_base::iostate& __err, long& __v) const 454 { 455 string __xtrc; 456 int __base; 457 __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base); 458 __convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale, __base); 459 return __beg; 460 } 461 462 template<typename _CharT, typename _InIter> 463 _InIter 464 num_get<_CharT, _InIter>:: 465 do_get(iter_type __beg, iter_type __end, ios_base& __io, 466 ios_base::iostate& __err, unsigned short& __v) const 467 { 468 string __xtrc; 469 int __base; 470 __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base); 471 unsigned long __ul; 472 __convert_to_v(__xtrc.c_str(), __ul, __err, _S_c_locale, __base); 473 if (!(__err & ios_base::failbit) 474 && __ul <= numeric_limits<unsigned short>::max()) 475 __v = static_cast<unsigned short>(__ul); 476 else 477 __err |= ios_base::failbit; 478 return __beg; 479 } 480 481 template<typename _CharT, typename _InIter> 482 _InIter 483 num_get<_CharT, _InIter>:: 484 do_get(iter_type __beg, iter_type __end, ios_base& __io, 485 ios_base::iostate& __err, unsigned int& __v) const 486 { 487 string __xtrc; 488 int __base; 489 __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base); 490 unsigned long __ul; 491 __convert_to_v(__xtrc.c_str(), __ul, __err, _S_c_locale, __base); 492 if (!(__err & ios_base::failbit) 493 && __ul <= numeric_limits<unsigned int>::max()) 494 __v = static_cast<unsigned int>(__ul); 495 else 496 __err |= ios_base::failbit; 497 return __beg; 498 } 499 500 template<typename _CharT, typename _InIter> 501 _InIter 502 num_get<_CharT, _InIter>:: 503 do_get(iter_type __beg, iter_type __end, ios_base& __io, 504 ios_base::iostate& __err, unsigned long& __v) const 505 { 506 string __xtrc; 507 int __base; 508 __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base); 509 __convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale, __base); 510 return __beg; 511 } 512 513#ifdef _GLIBCPP_USE_LONG_LONG 514 template<typename _CharT, typename _InIter> 515 _InIter 516 num_get<_CharT, _InIter>:: 517 do_get(iter_type __beg, iter_type __end, ios_base& __io, 518 ios_base::iostate& __err, long long& __v) const 519 { 520 string __xtrc; 521 int __base; 522 __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base); 523 __convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale, __base); 524 return __beg; 525 } 526 527 template<typename _CharT, typename _InIter> 528 _InIter 529 num_get<_CharT, _InIter>:: 530 do_get(iter_type __beg, iter_type __end, ios_base& __io, 531 ios_base::iostate& __err, unsigned long long& __v) const 532 { 533 string __xtrc; 534 int __base; 535 __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base); 536 __convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale, __base); 537 return __beg; 538 } 539#endif 540 541 template<typename _CharT, typename _InIter> 542 _InIter 543 num_get<_CharT, _InIter>:: 544 do_get(iter_type __beg, iter_type __end, ios_base& __io, 545 ios_base::iostate& __err, float& __v) const 546 { 547 string __xtrc; 548 __xtrc.reserve(32); 549 __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc); 550 __convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale); 551 return __beg; 552 } 553 554 template<typename _CharT, typename _InIter> 555 _InIter 556 num_get<_CharT, _InIter>:: 557 do_get(iter_type __beg, iter_type __end, ios_base& __io, 558 ios_base::iostate& __err, double& __v) const 559 { 560 string __xtrc; 561 __xtrc.reserve(32); 562 __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc); 563 __convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale); 564 return __beg; 565 } 566 567 template<typename _CharT, typename _InIter> 568 _InIter 569 num_get<_CharT, _InIter>:: 570 do_get(iter_type __beg, iter_type __end, ios_base& __io, 571 ios_base::iostate& __err, long double& __v) const 572 { 573 string __xtrc; 574 __xtrc.reserve(32); 575 __beg = _M_extract_float(__beg, __end, __io, __err, __xtrc); 576 __convert_to_v(__xtrc.c_str(), __v, __err, _S_c_locale); 577 return __beg; 578 } 579 580 template<typename _CharT, typename _InIter> 581 _InIter 582 num_get<_CharT, _InIter>:: 583 do_get(iter_type __beg, iter_type __end, ios_base& __io, 584 ios_base::iostate& __err, void*& __v) const 585 { 586 // Prepare for hex formatted input 587 typedef ios_base::fmtflags fmtflags; 588 fmtflags __fmt = __io.flags(); 589 fmtflags __fmtmask = ~(ios_base::showpos | ios_base::basefield 590 | ios_base::uppercase | ios_base::internal); 591 __io.flags(__fmt & __fmtmask | (ios_base::hex | ios_base::showbase)); 592 593 string __xtrc; 594 int __base; 595 __beg = _M_extract_int(__beg, __end, __io, __err, __xtrc, __base); 596 597 // Reset from hex formatted input 598 __io.flags(__fmt); 599 600 unsigned long __ul; 601 __convert_to_v(__xtrc.c_str(), __ul, __err, _S_c_locale, __base); 602 if (!(__err & ios_base::failbit)) 603 __v = reinterpret_cast<void*>(__ul); 604 else 605 __err |= ios_base::failbit; 606 return __beg; 607 } 608 609 // The following code uses snprintf (or sprintf(), when _GLIBCPP_USE_C99 610 // is not defined) to convert floating point values for insertion into a 611 // stream. An optimization would be to replace them with code that works 612 // directly on a wide buffer and then use __pad to do the padding. 613 // It would be good to replace them anyway to gain back the efficiency 614 // that C++ provides by knowing up front the type of the values to insert. 615 // Also, sprintf is dangerous since may lead to accidental buffer overruns. 616 // This implementation follows the C++ standard fairly directly as 617 // outlined in 22.2.2.2 [lib.locale.num.put] 618 template<typename _CharT, typename _OutIter> 619 template<typename _ValueT> 620 _OutIter 621 num_put<_CharT, _OutIter>:: 622 _M_convert_float(_OutIter __s, ios_base& __io, _CharT __fill, char __mod, 623 _ValueT __v) const 624 { 625 // Note: digits10 is rounded down. We need to add 1 to ensure 626 // we get the full available precision. 627 const int __max_digits = numeric_limits<_ValueT>::digits10 + 1; 628 streamsize __prec = __io.precision(); 629 630 if (__prec > static_cast<streamsize>(__max_digits)) 631 __prec = static_cast<streamsize>(__max_digits); 632 633 // Long enough for the max format spec. 634 char __fbuf[16]; 635 636 // [22.2.2.2.2] Stage 1, numeric conversion to character. 637 int __len; 638#ifdef _GLIBCPP_USE_C99 639 // First try a buffer perhaps big enough (for sure sufficient for 640 // non-ios_base::fixed outputs) 641 int __cs_size = __max_digits * 3; 642 char* __cs = static_cast<char*>(__builtin_alloca(__cs_size)); 643 644 const bool __fp = _S_format_float(__io, __fbuf, __mod, __prec); 645 if (__fp) 646 __len = __convert_from_v(__cs, __cs_size, __fbuf, __v, 647 _S_c_locale, __prec); 648 else 649 __len = __convert_from_v(__cs, __cs_size, __fbuf, __v, _S_c_locale); 650 651 // If the buffer was not large enough, try again with the correct size. 652 if (__len >= __cs_size) 653 { 654 __cs_size = __len + 1; 655 __cs = static_cast<char*>(__builtin_alloca(__cs_size)); 656 if (__fp) 657 __len = __convert_from_v(__cs, __cs_size, __fbuf, __v, 658 _S_c_locale, __prec); 659 else 660 __len = __convert_from_v(__cs, __cs_size, __fbuf, __v, 661 _S_c_locale); 662 } 663#else 664 // Consider the possibility of long ios_base::fixed outputs 665 const bool __fixed = __io.flags() & ios_base::fixed; 666 const int __max_exp = numeric_limits<_ValueT>::max_exponent10; 667 // ios_base::fixed outputs may need up to __max_exp+1 chars 668 // for the integer part + up to __max_digits chars for the 669 // fractional part + 3 chars for sign, decimal point, '\0'. On 670 // the other hand, for non-fixed outputs __max_digits*3 chars 671 // are largely sufficient. 672 const int __cs_size = __fixed ? __max_exp + __max_digits + 4 673 : __max_digits * 3; 674 char* __cs = static_cast<char*>(__builtin_alloca(__cs_size)); 675 676 if (_S_format_float(__io, __fbuf, __mod, __prec)) 677 __len = __convert_from_v(__cs, 0, __fbuf, __v, _S_c_locale, __prec); 678 else 679 __len = __convert_from_v(__cs, 0, __fbuf, __v, _S_c_locale); 680#endif 681 return _M_widen_float(__s, __io, __fill, __cs, __len); 682 } 683 684 template<typename _CharT, typename _OutIter> 685 template<typename _ValueT> 686 _OutIter 687 num_put<_CharT, _OutIter>:: 688 _M_convert_int(_OutIter __s, ios_base& __io, _CharT __fill, char __mod, 689 char __modl, _ValueT __v) const 690 { 691 // [22.2.2.2.2] Stage 1, numeric conversion to character. 692 693 // Long enough for the max format spec. 694 char __fbuf[16]; 695 _S_format_int(__io, __fbuf, __mod, __modl); 696#ifdef _GLIBCPP_USE_C99 697 // First try a buffer perhaps big enough. 698 int __cs_size = 64; 699 char* __cs = static_cast<char*>(__builtin_alloca(__cs_size)); 700 int __len = __convert_from_v(__cs, __cs_size, __fbuf, __v, 701 _S_c_locale); 702 // If the buffer was not large enough, try again with the correct size. 703 if (__len >= __cs_size) 704 { 705 __cs_size = __len + 1; 706 __cs = static_cast<char*>(__builtin_alloca(__cs_size)); 707 __len = __convert_from_v(__cs, __cs_size, __fbuf, __v, 708 _S_c_locale); 709 } 710#else 711 // Leave room for "+/-," "0x," and commas. This size is 712 // arbitrary, but should be largely sufficient. 713 char __cs[128]; 714 int __len = __convert_from_v(__cs, 0, __fbuf, __v, _S_c_locale); 715#endif 716 return _M_widen_int(__s, __io, __fill, __cs, __len); 717 } 718 719 template<typename _CharT, typename _OutIter> 720 _OutIter 721 num_put<_CharT, _OutIter>:: 722 _M_widen_float(_OutIter __s, ios_base& __io, _CharT __fill, char* __cs, 723 int __len) const 724 { 725 typedef char_traits<_CharT> __traits_type; 726 // [22.2.2.2.2] Stage 2, convert to char_type, using correct 727 // numpunct.decimal_point() values for '.' and adding grouping. 728 const locale __loc = __io.getloc(); 729 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 730 _CharT* __ws = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) 731 * __len)); 732 // Grouping can add (almost) as many separators as the number of 733 // digits, but no more. 734 _CharT* __ws2 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) 735 * __len * 2)); 736 __ctype.widen(__cs, __cs + __len, __ws); 737 738 // Replace decimal point. 739 const _CharT* __p; 740 const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc); 741 if (__p = __traits_type::find(__ws, __len, __ctype.widen('.'))) 742 __ws[__p - __ws] = __np.decimal_point(); 743 744#ifdef _GLIBCPP_RESOLVE_LIB_DEFECTS 745//282. What types does numpunct grouping refer to? 746 // Add grouping, if necessary. 747 const string __grouping = __np.grouping(); 748 ios_base::fmtflags __basefield = __io.flags() & ios_base::basefield; 749 if (__grouping.size()) 750 { 751 _CharT* __p2; 752 int __declen = __p ? __p - __ws : __len; 753 __p2 = __add_grouping(__ws2, __np.thousands_sep(), 754 __grouping.c_str(), 755 __grouping.c_str() + __grouping.size(), 756 __ws, __ws + __declen); 757 int __newlen = __p2 - __ws2; 758 759 // Tack on decimal part. 760 if (__p) 761 { 762 __traits_type::copy(__p2, __p, __len - __declen); 763 __newlen += __len - __declen; 764 } 765 766 // Switch strings, establish correct new length. 767 __ws = __ws2; 768 __len = __newlen; 769 } 770#endif 771 return _M_insert(__s, __io, __fill, __ws, __len); 772 } 773 774 template<typename _CharT, typename _OutIter> 775 _OutIter 776 num_put<_CharT, _OutIter>:: 777 _M_widen_int(_OutIter __s, ios_base& __io, _CharT __fill, char* __cs, 778 int __len) const 779 { 780 // [22.2.2.2.2] Stage 2, convert to char_type, using correct 781 // numpunct.decimal_point() values for '.' and adding grouping. 782 const locale __loc = __io.getloc(); 783 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 784 _CharT* __ws = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) 785 * __len)); 786 // Grouping can add (almost) as many separators as the number of 787 // digits, but no more. 788 _CharT* __ws2 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) 789 * __len * 2)); 790 __ctype.widen(__cs, __cs + __len, __ws); 791 792 // Add grouping, if necessary. 793 const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc); 794 const string __grouping = __np.grouping(); 795 const ios_base::fmtflags __basefield = __io.flags() & ios_base::basefield; 796 if (__grouping.size()) 797 { 798 // By itself __add_grouping cannot deal correctly with __ws when 799 // ios::showbase is set and ios_base::oct || ios_base::hex. 800 // Therefore we take care "by hand" of the initial 0, 0x or 0X. 801 // However, remember that the latter do not occur if the number 802 // printed is '0' (__len == 1). 803 streamsize __off = 0; 804 if ((__io.flags() & ios_base::showbase) && __len > 1) 805 if (__basefield == ios_base::oct) 806 { 807 __off = 1; 808 *__ws2 = *__ws; 809 } 810 else if (__basefield == ios_base::hex) 811 { 812 __off = 2; 813 *__ws2 = *__ws; 814 *(__ws2 + 1) = *(__ws + 1); 815 } 816 _CharT* __p; 817 __p = __add_grouping(__ws2 + __off, __np.thousands_sep(), 818 __grouping.c_str(), 819 __grouping.c_str() + __grouping.size(), 820 __ws + __off, __ws + __len); 821 __len = __p - __ws2; 822 // Switch strings. 823 __ws = __ws2; 824 } 825 return _M_insert(__s, __io, __fill, __ws, __len); 826 } 827 828 // For use by integer and floating-point types after they have been 829 // converted into a char_type string. 830 template<typename _CharT, typename _OutIter> 831 _OutIter 832 num_put<_CharT, _OutIter>:: 833 _M_insert(_OutIter __s, ios_base& __io, _CharT __fill, const _CharT* __ws, 834 int __len) const 835 { 836 typedef char_traits<_CharT> __traits_type; 837 // [22.2.2.2.2] Stage 3. 838 streamsize __w = __io.width(); 839 _CharT* __ws2 = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) 840 * __w)); 841 if (__w > static_cast<streamsize>(__len)) 842 { 843 __pad<_CharT, __traits_type>::_S_pad(__io, __fill, __ws2, __ws, 844 __w, __len, true); 845 __len = static_cast<int>(__w); 846 // Switch strings. 847 __ws = __ws2; 848 } 849 __io.width(0); 850 851 // [22.2.2.2.2] Stage 4. 852 // Write resulting, fully-formatted string to output iterator. 853 for (int __j = 0; __j < __len; ++__j, ++__s) 854 *__s = __ws[__j]; 855 return __s; 856 } 857 858 template<typename _CharT, typename _OutIter> 859 _OutIter 860 num_put<_CharT, _OutIter>:: 861 do_put(iter_type __s, ios_base& __io, char_type __fill, bool __v) const 862 { 863 ios_base::fmtflags __flags = __io.flags(); 864 if ((__flags & ios_base::boolalpha) == 0) 865 { 866 unsigned long __uv = __v; 867 __s = _M_convert_int(__s, __io, __fill, 'u', char(), __uv); 868 } 869 else 870 { 871 typedef basic_string<_CharT> __string_type; 872 locale __loc = __io.getloc(); 873 const numpunct<_CharT>& __np = use_facet<numpunct<_CharT> >(__loc); 874 __string_type __name; 875 if (__v) 876 __name = __np.truename(); 877 else 878 __name = __np.falsename(); 879 __s = _M_insert(__s, __io, __fill, __name.c_str(), __name.size()); 880 } 881 return __s; 882 } 883 884 template<typename _CharT, typename _OutIter> 885 _OutIter 886 num_put<_CharT, _OutIter>:: 887 do_put(iter_type __s, ios_base& __io, char_type __fill, long __v) const 888 { return _M_convert_int(__s, __io, __fill, 'd', char(), __v); } 889 890 template<typename _CharT, typename _OutIter> 891 _OutIter 892 num_put<_CharT, _OutIter>:: 893 do_put(iter_type __s, ios_base& __io, char_type __fill, 894 unsigned long __v) const 895 { return _M_convert_int(__s, __io, __fill, 'u', char(), __v); } 896 897#ifdef _GLIBCPP_USE_LONG_LONG 898 template<typename _CharT, typename _OutIter> 899 _OutIter 900 num_put<_CharT, _OutIter>:: 901 do_put(iter_type __s, ios_base& __b, char_type __fill, long long __v) const 902 { return _M_convert_int(__s, __b, __fill, 'd', 'l', __v); } 903 904 template<typename _CharT, typename _OutIter> 905 _OutIter 906 num_put<_CharT, _OutIter>:: 907 do_put(iter_type __s, ios_base& __io, char_type __fill, 908 unsigned long long __v) const 909 { return _M_convert_int(__s, __io, __fill, 'u', 'l', __v); } 910#endif 911 912 template<typename _CharT, typename _OutIter> 913 _OutIter 914 num_put<_CharT, _OutIter>:: 915 do_put(iter_type __s, ios_base& __io, char_type __fill, double __v) const 916 { return _M_convert_float(__s, __io, __fill, char(), __v); } 917 918 template<typename _CharT, typename _OutIter> 919 _OutIter 920 num_put<_CharT, _OutIter>:: 921 do_put(iter_type __s, ios_base& __io, char_type __fill, 922 long double __v) const 923 { return _M_convert_float(__s, __io, __fill, 'L', __v); } 924 925 template<typename _CharT, typename _OutIter> 926 _OutIter 927 num_put<_CharT, _OutIter>:: 928 do_put(iter_type __s, ios_base& __io, char_type __fill, 929 const void* __v) const 930 { 931 ios_base::fmtflags __flags = __io.flags(); 932 ios_base::fmtflags __fmt = ~(ios_base::showpos | ios_base::basefield 933 | ios_base::uppercase | ios_base::internal); 934 __io.flags(__flags & __fmt | (ios_base::hex | ios_base::showbase)); 935 try 936 { 937 __s = _M_convert_int(__s, __io, __fill, 'u', char(), 938 reinterpret_cast<unsigned long>(__v)); 939 __io.flags(__flags); 940 } 941 catch (...) 942 { 943 __io.flags(__flags); 944 __throw_exception_again; 945 } 946 return __s; 947 } 948 949 950 template<typename _CharT, typename _InIter> 951 _InIter 952 money_get<_CharT, _InIter>:: 953 do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io, 954 ios_base::iostate& __err, long double& __units) const 955 { 956 string_type __str; 957 __beg = this->do_get(__beg, __end, __intl, __io, __err, __str); 958 959 const int __n = numeric_limits<long double>::digits10; 960 char* __cs = static_cast<char*>(__builtin_alloca(__n)); 961 const locale __loc = __io.getloc(); 962 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 963 const _CharT* __wcs = __str.c_str(); 964 __ctype.narrow(__wcs, __wcs + __str.size() + 1, char(), __cs); 965 __convert_to_v(__cs, __units, __err, _S_c_locale); 966 return __beg; 967 } 968 969 template<typename _CharT, typename _InIter> 970 _InIter 971 money_get<_CharT, _InIter>:: 972 do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io, 973 ios_base::iostate& __err, string_type& __units) const 974 { 975 // These contortions are quite unfortunate. 976 typedef moneypunct<_CharT, true> __money_true; 977 typedef moneypunct<_CharT, false> __money_false; 978 typedef money_base::part part; 979 typedef typename string_type::size_type size_type; 980 981 const locale __loc = __io.getloc(); 982 const __money_true& __mpt = use_facet<__money_true>(__loc); 983 const __money_false& __mpf = use_facet<__money_false>(__loc); 984 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 985 986 const money_base::pattern __p = __intl ? __mpt.neg_format() 987 : __mpf.neg_format(); 988 989 const string_type __pos_sign =__intl ? __mpt.positive_sign() 990 : __mpf.positive_sign(); 991 const string_type __neg_sign =__intl ? __mpt.negative_sign() 992 : __mpf.negative_sign(); 993 const char_type __d = __intl ? __mpt.decimal_point() 994 : __mpf.decimal_point(); 995 const char_type __sep = __intl ? __mpt.thousands_sep() 996 : __mpf.thousands_sep(); 997 998 const string __grouping = __intl ? __mpt.grouping() : __mpf.grouping(); 999 1000 // Set to deduced positive or negative sign, depending. 1001 string_type __sign; 1002 // String of grouping info from thousands_sep plucked from __units. 1003 string __grouping_tmp; 1004 // Marker for thousands_sep position. 1005 int __sep_pos = 0; 1006 // If input iterator is in a valid state. 1007 bool __testvalid = true; 1008 // Flag marking when a decimal point is found. 1009 bool __testdecfound = false; 1010 1011 // The tentative returned string is stored here. 1012 string_type __temp_units; 1013 1014 char_type __c = *__beg; 1015 char_type __eof = static_cast<char_type>(char_traits<char_type>::eof()); 1016 for (int __i = 0; __beg != __end && __i < 4 && __testvalid; ++__i) 1017 { 1018 part __which = static_cast<part>(__p.field[__i]); 1019 switch (__which) 1020 { 1021 case money_base::symbol: 1022 if (__io.flags() & ios_base::showbase 1023 || __i < 2 || __sign.size() > 1 1024 || ((static_cast<part>(__p.field[3]) != money_base::none) 1025 && __i == 2)) 1026 { 1027 // According to 22.2.6.1.2.2, symbol is required 1028 // if (__io.flags() & ios_base::showbase), 1029 // otherwise is optional and consumed only if 1030 // other characters are needed to complete the 1031 // format. 1032 const string_type __symbol = __intl ? __mpt.curr_symbol() 1033 : __mpf.curr_symbol(); 1034 size_type __len = __symbol.size(); 1035 size_type __j = 0; 1036 while (__beg != __end 1037 && __j < __len && __symbol[__j] == __c) 1038 { 1039 __c = *(++__beg); 1040 ++__j; 1041 } 1042 // When (__io.flags() & ios_base::showbase) 1043 // symbol is required. 1044 if (__j != __len && (__io.flags() & ios_base::showbase)) 1045 __testvalid = false; 1046 } 1047 break; 1048 case money_base::sign: 1049 // Sign might not exist, or be more than one character long. 1050 if (__pos_sign.size() && __neg_sign.size()) 1051 { 1052 // Sign is mandatory. 1053 if (__c == __pos_sign[0]) 1054 { 1055 __sign = __pos_sign; 1056 __c = *(++__beg); 1057 } 1058 else if (__c == __neg_sign[0]) 1059 { 1060 __sign = __neg_sign; 1061 __c = *(++__beg); 1062 } 1063 else 1064 __testvalid = false; 1065 } 1066 else if (__pos_sign.size() && __c == __pos_sign[0]) 1067 { 1068 __sign = __pos_sign; 1069 __c = *(++__beg); 1070 } 1071 else if (__neg_sign.size() && __c == __neg_sign[0]) 1072 { 1073 __sign = __neg_sign; 1074 __c = *(++__beg); 1075 } 1076 break; 1077 case money_base::value: 1078 // Extract digits, remove and stash away the 1079 // grouping of found thousands separators. 1080 while (__beg != __end 1081 && (__ctype.is(ctype_base::digit, __c) 1082 || (__c == __d && !__testdecfound) 1083 || __c == __sep)) 1084 { 1085 if (__c == __d) 1086 { 1087 __grouping_tmp += static_cast<char>(__sep_pos); 1088 __sep_pos = 0; 1089 __testdecfound = true; 1090 } 1091 else if (__c == __sep) 1092 { 1093 if (__grouping.size()) 1094 { 1095 // Mark position for later analysis. 1096 __grouping_tmp += static_cast<char>(__sep_pos); 1097 __sep_pos = 0; 1098 } 1099 else 1100 { 1101 __testvalid = false; 1102 break; 1103 } 1104 } 1105 else 1106 { 1107 __temp_units += __c; 1108 ++__sep_pos; 1109 } 1110 __c = *(++__beg); 1111 } 1112 break; 1113 case money_base::space: 1114 case money_base::none: 1115 // Only if not at the end of the pattern. 1116 if (__i != 3) 1117 while (__beg != __end 1118 && __ctype.is(ctype_base::space, __c)) 1119 __c = *(++__beg); 1120 break; 1121 } 1122 } 1123 1124 // Need to get the rest of the sign characters, if they exist. 1125 if (__sign.size() > 1) 1126 { 1127 size_type __len = __sign.size(); 1128 size_type __i = 1; 1129 for (; __c != __eof && __i < __len; ++__i) 1130 while (__beg != __end && __c != __sign[__i]) 1131 __c = *(++__beg); 1132 1133 if (__i != __len) 1134 __testvalid = false; 1135 } 1136 1137 // Strip leading zeros. 1138 while (__temp_units[0] == __ctype.widen('0')) 1139 __temp_units.erase(__temp_units.begin()); 1140 1141 if (__sign.size() && __sign == __neg_sign) 1142 __temp_units.insert(__temp_units.begin(), __ctype.widen('-')); 1143 1144 // Test for grouping fidelity. 1145 if (__grouping.size() && __grouping_tmp.size()) 1146 { 1147 if (!__verify_grouping(__grouping, __grouping_tmp)) 1148 __testvalid = false; 1149 } 1150 1151 // Iff no more characters are available. 1152 if (__c == __eof) 1153 __err |= ios_base::eofbit; 1154 1155 // Iff valid sequence is not recognized. 1156 if (!__testvalid || !__temp_units.size()) 1157 __err |= ios_base::failbit; 1158 else 1159 // Use the "swap trick" to copy __temp_units into __units. 1160 __temp_units.swap(__units); 1161 1162 return __beg; 1163 } 1164 1165 template<typename _CharT, typename _OutIter> 1166 _OutIter 1167 money_put<_CharT, _OutIter>:: 1168 do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill, 1169 long double __units) const 1170 { 1171 const locale __loc = __io.getloc(); 1172 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 1173#ifdef _GLIBCPP_USE_C99 1174 // First try a buffer perhaps big enough. 1175 int __cs_size = 64; 1176 char* __cs = static_cast<char*>(__builtin_alloca(__cs_size)); 1177 int __len = __convert_from_v(__cs, __cs_size, "%.01Lf", __units, 1178 _S_c_locale); 1179 // If the buffer was not large enough, try again with the correct size. 1180 if (__len >= __cs_size) 1181 { 1182 __cs_size = __len + 1; 1183 __cs = static_cast<char*>(__builtin_alloca(__cs_size)); 1184 __len = __convert_from_v(__cs, __cs_size, "%.01Lf", __units, 1185 _S_c_locale); 1186 } 1187#else 1188 // max_exponent10 + 1 for the integer part, + 4 for sign, decimal point, 1189 // decimal digit, '\0'. 1190 const int __cs_size = numeric_limits<long double>::max_exponent10 + 5; 1191 char* __cs = static_cast<char*>(__builtin_alloca(__cs_size)); 1192 int __len = __convert_from_v(__cs, 0, "%.01Lf", __units, _S_c_locale); 1193#endif 1194 _CharT* __ws = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * __cs_size)); 1195 __ctype.widen(__cs, __cs + __len, __ws); 1196 string_type __digits(__ws); 1197 return this->do_put(__s, __intl, __io, __fill, __digits); 1198 } 1199 1200 template<typename _CharT, typename _OutIter> 1201 _OutIter 1202 money_put<_CharT, _OutIter>:: 1203 do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill, 1204 const string_type& __digits) const 1205 { 1206 typedef typename string_type::size_type size_type; 1207 typedef money_base::part part; 1208 1209 const locale __loc = __io.getloc(); 1210 const size_type __width = static_cast<size_type>(__io.width()); 1211 1212 // These contortions are quite unfortunate. 1213 typedef moneypunct<_CharT, true> __money_true; 1214 typedef moneypunct<_CharT, false> __money_false; 1215 const __money_true& __mpt = use_facet<__money_true>(__loc); 1216 const __money_false& __mpf = use_facet<__money_false>(__loc); 1217 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 1218 1219 // Determine if negative or positive formats are to be used, and 1220 // discard leading negative_sign if it is present. 1221 const char_type* __beg = __digits.data(); 1222 const char_type* __end = __beg + __digits.size(); 1223 money_base::pattern __p; 1224 string_type __sign; 1225 if (*__beg != __ctype.widen('-')) 1226 { 1227 __p = __intl ? __mpt.pos_format() : __mpf.pos_format(); 1228 __sign =__intl ? __mpt.positive_sign() : __mpf.positive_sign(); 1229 } 1230 else 1231 { 1232 __p = __intl ? __mpt.neg_format() : __mpf.neg_format(); 1233 __sign =__intl ? __mpt.negative_sign() : __mpf.negative_sign(); 1234 ++__beg; 1235 } 1236 1237 // Look for valid numbers in the current ctype facet within input digits. 1238 __end = __ctype.scan_not(ctype_base::digit, __beg, __end); 1239 if (__beg != __end) 1240 { 1241 // Assume valid input, and attempt to format. 1242 // Break down input numbers into base components, as follows: 1243 // final_value = grouped units + (decimal point) + (digits) 1244 string_type __res; 1245 string_type __value; 1246 const string_type __symbol = __intl ? __mpt.curr_symbol() 1247 : __mpf.curr_symbol(); 1248 1249 // Deal with decimal point, decimal digits. 1250 const int __frac = __intl ? __mpt.frac_digits() 1251 : __mpf.frac_digits(); 1252 if (__frac > 0) 1253 { 1254 const char_type __d = __intl ? __mpt.decimal_point() 1255 : __mpf.decimal_point(); 1256 if (__end - __beg >= __frac) 1257 { 1258 __value = string_type(__end - __frac, __end); 1259 __value.insert(__value.begin(), __d); 1260 __end -= __frac; 1261 } 1262 else 1263 { 1264 // Have to pad zeros in the decimal position. 1265 __value = string_type(__beg, __end); 1266 int __paddec = __frac - (__end - __beg); 1267 char_type __zero = __ctype.widen('0'); 1268 __value.insert(__value.begin(), __paddec, __zero); 1269 __value.insert(__value.begin(), __d); 1270 __beg = __end; 1271 } 1272 } 1273 1274 // Add thousands separators to non-decimal digits, per 1275 // grouping rules. 1276 if (__beg != __end) 1277 { 1278 const string __grouping = __intl ? __mpt.grouping() 1279 : __mpf.grouping(); 1280 if (__grouping.size()) 1281 { 1282 const char_type __sep = __intl ? __mpt.thousands_sep() 1283 : __mpf.thousands_sep(); 1284 const char* __gbeg = __grouping.c_str(); 1285 const char* __gend = __gbeg + __grouping.size(); 1286 const int __n = (__end - __beg) * 2; 1287 _CharT* __ws2 = 1288 static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * __n)); 1289 _CharT* __ws_end = __add_grouping(__ws2, __sep, __gbeg, 1290 __gend, __beg, __end); 1291 __value.insert(0, __ws2, __ws_end - __ws2); 1292 } 1293 else 1294 __value.insert(0, string_type(__beg, __end)); 1295 } 1296 1297 // Calculate length of resulting string. 1298 ios_base::fmtflags __f = __io.flags() & ios_base::adjustfield; 1299 size_type __len = __value.size() + __sign.size(); 1300 __len += (__io.flags() & ios_base::showbase) ? __symbol.size() : 0; 1301 bool __testipad = __f == ios_base::internal && __len < __width; 1302 1303 // Fit formatted digits into the required pattern. 1304 for (int __i = 0; __i < 4; ++__i) 1305 { 1306 part __which = static_cast<part>(__p.field[__i]); 1307 switch (__which) 1308 { 1309 case money_base::symbol: 1310 if (__io.flags() & ios_base::showbase) 1311 __res += __symbol; 1312 break; 1313 case money_base::sign: 1314 // Sign might not exist, or be more than one 1315 // charater long. In that case, add in the rest 1316 // below. 1317 if (__sign.size()) 1318 __res += __sign[0]; 1319 break; 1320 case money_base::value: 1321 __res += __value; 1322 break; 1323 case money_base::space: 1324 // At least one space is required, but if internal 1325 // formatting is required, an arbitrary number of 1326 // fill spaces will be necessary. 1327 if (__testipad) 1328 __res += string_type(__width - __len, __fill); 1329 else 1330 __res += __ctype.widen(__fill); 1331 break; 1332 case money_base::none: 1333 if (__testipad) 1334 __res += string_type(__width - __len, __fill); 1335 break; 1336 } 1337 } 1338 1339 // Special case of multi-part sign parts. 1340 if (__sign.size() > 1) 1341 __res += string_type(__sign.begin() + 1, __sign.end()); 1342 1343 // Pad, if still necessary. 1344 __len = __res.size(); 1345 if (__width > __len) 1346 { 1347 if (__f == ios_base::left) 1348 // After. 1349 __res.append(__width - __len, __fill); 1350 else 1351 // Before. 1352 __res.insert(0, string_type(__width - __len, __fill)); 1353 __len = __width; 1354 } 1355 1356 // Write resulting, fully-formatted string to output iterator. 1357 for (size_type __j = 0; __j < __len; ++__j, ++__s) 1358 *__s = __res[__j]; 1359 } 1360 __io.width(0); 1361 return __s; 1362 } 1363 1364 1365 // NB: Not especially useful. Without an ios_base object or some 1366 // kind of locale reference, we are left clawing at the air where 1367 // the side of the mountain used to be... 1368 template<typename _CharT, typename _InIter> 1369 time_base::dateorder 1370 time_get<_CharT, _InIter>::do_date_order() const 1371 { return time_base::no_order; } 1372 1373 template<typename _CharT, typename _InIter> 1374 void 1375 time_get<_CharT, _InIter>:: 1376 _M_extract_via_format(iter_type& __beg, iter_type& __end, ios_base& __io, 1377 ios_base::iostate& __err, tm* __tm, 1378 const _CharT* __format) const 1379 { 1380 locale __loc = __io.getloc(); 1381 __timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc); 1382 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 1383 size_t __len = char_traits<_CharT>::length(__format); 1384 1385 for (size_t __i = 0; __beg != __end && __i < __len && !__err; ++__i) 1386 { 1387 char __c = __format[__i]; 1388 if (__c == '%') 1389 { 1390 // Verify valid formatting code, attempt to extract. 1391 __c = __format[++__i]; 1392 char __mod = 0; 1393 int __mem = 0; 1394 if (__c == 'E' || __c == 'O') 1395 { 1396 __mod = __c; 1397 __c = __format[++__i]; 1398 } 1399 switch (__c) 1400 { 1401 const char* __cs; 1402 _CharT __wcs[10]; 1403 case 'a': 1404 // Abbreviated weekday name [tm_wday] 1405 const char_type* __days1[7]; 1406 __tp._M_days_abbreviated(__days1); 1407 _M_extract_name(__beg, __end, __tm->tm_wday, __days1, 7, 1408 __err); 1409 break; 1410 case 'A': 1411 // Weekday name [tm_wday]. 1412 const char_type* __days2[7]; 1413 __tp._M_days(__days2); 1414 _M_extract_name(__beg, __end, __tm->tm_wday, __days2, 7, 1415 __err); 1416 break; 1417 case 'h': 1418 case 'b': 1419 // Abbreviated month name [tm_mon] 1420 const char_type* __months1[12]; 1421 __tp._M_months_abbreviated(__months1); 1422 _M_extract_name(__beg, __end, __tm->tm_mon, __months1, 12, 1423 __err); 1424 break; 1425 case 'B': 1426 // Month name [tm_mon]. 1427 const char_type* __months2[12]; 1428 __tp._M_months(__months2); 1429 _M_extract_name(__beg, __end, __tm->tm_mon, __months2, 12, 1430 __err); 1431 break; 1432 case 'c': 1433 // Default time and date representation. 1434 const char_type* __dt[2]; 1435 __tp._M_date_time_formats(__dt); 1436 _M_extract_via_format(__beg, __end, __io, __err, __tm, 1437 __dt[0]); 1438 break; 1439 case 'd': 1440 // Day [01, 31]. [tm_mday] 1441 _M_extract_num(__beg, __end, __tm->tm_mday, 1, 31, 2, 1442 __ctype, __err); 1443 break; 1444 case 'D': 1445 // Equivalent to %m/%d/%y.[tm_mon, tm_mday, tm_year] 1446 __cs = "%m/%d/%y"; 1447 __ctype.widen(__cs, __cs + 9, __wcs); 1448 _M_extract_via_format(__beg, __end, __io, __err, __tm, 1449 __wcs); 1450 break; 1451 case 'H': 1452 // Hour [00, 23]. [tm_hour] 1453 _M_extract_num(__beg, __end, __tm->tm_hour, 0, 23, 2, 1454 __ctype, __err); 1455 break; 1456 case 'I': 1457 // Hour [01, 12]. [tm_hour] 1458 _M_extract_num(__beg, __end, __tm->tm_hour, 1, 12, 2, 1459 __ctype, __err); 1460 break; 1461 case 'm': 1462 // Month [01, 12]. [tm_mon] 1463 _M_extract_num(__beg, __end, __mem, 1, 12, 2, __ctype, 1464 __err); 1465 if (!__err) 1466 __tm->tm_mon = __mem - 1; 1467 break; 1468 case 'M': 1469 // Minute [00, 59]. [tm_min] 1470 _M_extract_num(__beg, __end, __tm->tm_min, 0, 59, 2, 1471 __ctype, __err); 1472 break; 1473 case 'n': 1474 if (__ctype.narrow(*__beg, 0) == '\n') 1475 ++__beg; 1476 else 1477 __err |= ios_base::failbit; 1478 break; 1479 case 'R': 1480 // Equivalent to (%H:%M). 1481 __cs = "%H:%M"; 1482 __ctype.widen(__cs, __cs + 6, __wcs); 1483 _M_extract_via_format(__beg, __end, __io, __err, __tm, 1484 __wcs); 1485 break; 1486 case 'S': 1487 // Seconds. 1488 _M_extract_num(__beg, __end, __tm->tm_sec, 0, 59, 2, 1489 __ctype, __err); 1490 break; 1491 case 't': 1492 if (__ctype.narrow(*__beg, 0) == '\t') 1493 ++__beg; 1494 else 1495 __err |= ios_base::failbit; 1496 break; 1497 case 'T': 1498 // Equivalent to (%H:%M:%S). 1499 __cs = "%H:%M:%S"; 1500 __ctype.widen(__cs, __cs + 9, __wcs); 1501 _M_extract_via_format(__beg, __end, __io, __err, __tm, 1502 __wcs); 1503 break; 1504 case 'x': 1505 // Locale's date. 1506 const char_type* __dates[2]; 1507 __tp._M_date_formats(__dates); 1508 _M_extract_via_format(__beg, __end, __io, __err, __tm, 1509 __dates[0]); 1510 break; 1511 case 'X': 1512 // Locale's time. 1513 const char_type* __times[2]; 1514 __tp._M_time_formats(__times); 1515 _M_extract_via_format(__beg, __end, __io, __err, __tm, 1516 __times[0]); 1517 break; 1518 case 'y': 1519 // Two digit year. [tm_year] 1520 _M_extract_num(__beg, __end, __tm->tm_year, 0, 99, 2, 1521 __ctype, __err); 1522 break; 1523 case 'Y': 1524 // Year [1900). [tm_year] 1525 _M_extract_num(__beg, __end, __mem, 0, 1526 numeric_limits<int>::max(), 4, 1527 __ctype, __err); 1528 if (!__err) 1529 __tm->tm_year = __mem - 1900; 1530 break; 1531 case 'Z': 1532 // Timezone info. 1533 if (__ctype.is(ctype_base::upper, *__beg)) 1534 { 1535 int __tmp; 1536 _M_extract_name(__beg, __end, __tmp, 1537 __timepunct<_CharT>::_S_timezones, 1538 14, __err); 1539 1540 // GMT requires special effort. 1541 char_type __c = *__beg; 1542 if (!__err && __tmp == 0 1543 && (__c == __ctype.widen('-') 1544 || __c == __ctype.widen('+'))) 1545 { 1546 _M_extract_num(__beg, __end, __tmp, 0, 23, 2, 1547 __ctype, __err); 1548 _M_extract_num(__beg, __end, __tmp, 0, 59, 2, 1549 __ctype, __err); 1550 } 1551 } 1552 else 1553 __err |= ios_base::failbit; 1554 break; 1555 default: 1556 // Not recognized. 1557 __err |= ios_base::failbit; 1558 } 1559 } 1560 else 1561 { 1562 // Verify format and input match, extract and discard. 1563 if (__c == __ctype.narrow(*__beg, 0)) 1564 ++__beg; 1565 else 1566 __err |= ios_base::failbit; 1567 } 1568 } 1569 } 1570 1571 template<typename _CharT, typename _InIter> 1572 void 1573 time_get<_CharT, _InIter>:: 1574 _M_extract_num(iter_type& __beg, iter_type& __end, int& __member, 1575 int __min, int __max, size_t __len, 1576 const ctype<_CharT>& __ctype, 1577 ios_base::iostate& __err) const 1578 { 1579 size_t __i = 0; 1580 string __digits; 1581 bool __testvalid = true; 1582 char_type __c = *__beg; 1583 while (__beg != __end && __i < __len 1584 && __ctype.is(ctype_base::digit, __c)) 1585 { 1586 __digits += __ctype.narrow(__c, 0); 1587 __c = *(++__beg); 1588 ++__i; 1589 } 1590 if (__i == __len) 1591 { 1592 int __value = atoi(__digits.c_str()); 1593 if (__min <= __value && __value <= __max) 1594 __member = __value; 1595 else 1596 __testvalid = false; 1597 } 1598 else 1599 __testvalid = false; 1600 if (!__testvalid) 1601 __err |= ios_base::failbit; 1602 } 1603 1604 // Assumptions: 1605 // All elements in __names are unique. 1606 template<typename _CharT, typename _InIter> 1607 void 1608 time_get<_CharT, _InIter>:: 1609 _M_extract_name(iter_type& __beg, iter_type& __end, int& __member, 1610 const _CharT** __names, size_t __indexlen, 1611 ios_base::iostate& __err) const 1612 { 1613 typedef char_traits<_CharT> __traits_type; 1614 int* __matches = static_cast<int*>(__builtin_alloca(sizeof(int) * __indexlen)); 1615 size_t __nmatches = 0; 1616 size_t __pos = 0; 1617 bool __testvalid = true; 1618 const char_type* __name; 1619 1620 char_type __c = *__beg; 1621 // Look for initial matches. 1622 for (size_t __i1 = 0; __i1 < __indexlen; ++__i1) 1623 if (__c == __names[__i1][0]) 1624 __matches[__nmatches++] = __i1; 1625 1626 while(__nmatches > 1) 1627 { 1628 // Find smallest matching string. 1629 size_t __minlen = 10; 1630 for (size_t __i2 = 0; __i2 < __nmatches; ++__i2) 1631 __minlen = min(__minlen, 1632 __traits_type::length(__names[__matches[__i2]])); 1633 1634 if (__pos < __minlen && __beg != __end) 1635 { 1636 ++__pos; 1637 __c = *(++__beg); 1638 for (size_t __i3 = 0; __i3 < __nmatches; ++__i3) 1639 { 1640 __name = __names[__matches[__i3]]; 1641 if (__name[__pos] != __c) 1642 __matches[__i3] = __matches[--__nmatches]; 1643 } 1644 } 1645 else 1646 break; 1647 } 1648 1649 if (__nmatches == 1) 1650 { 1651 // Make sure found name is completely extracted. 1652 __name = __names[__matches[0]]; 1653 const size_t __len = __traits_type::length(__name); 1654 while (__pos < __len && __beg != __end && __name[__pos] == *__beg) 1655 ++__beg, ++__pos; 1656 1657 if (__len == __pos) 1658 __member = __matches[0]; 1659 else 1660 __testvalid = false; 1661 } 1662 else 1663 __testvalid = false; 1664 if (!__testvalid) 1665 __err |= ios_base::failbit; 1666 } 1667 1668 template<typename _CharT, typename _InIter> 1669 _InIter 1670 time_get<_CharT, _InIter>:: 1671 do_get_time(iter_type __beg, iter_type __end, ios_base& __io, 1672 ios_base::iostate& __err, tm* __tm) const 1673 { 1674 _CharT __wcs[3]; 1675 const char* __cs = "%X"; 1676 locale __loc = __io.getloc(); 1677 ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc); 1678 __ctype.widen(__cs, __cs + 3, __wcs); 1679 _M_extract_via_format(__beg, __end, __io, __err, __tm, __wcs); 1680 if (__beg == __end) 1681 __err |= ios_base::eofbit; 1682 return __beg; 1683 } 1684 1685 template<typename _CharT, typename _InIter> 1686 _InIter 1687 time_get<_CharT, _InIter>:: 1688 do_get_date(iter_type __beg, iter_type __end, ios_base& __io, 1689 ios_base::iostate& __err, tm* __tm) const 1690 { 1691 _CharT __wcs[3]; 1692 const char* __cs = "%x"; 1693 locale __loc = __io.getloc(); 1694 ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc); 1695 __ctype.widen(__cs, __cs + 3, __wcs); 1696 _M_extract_via_format(__beg, __end, __io, __err, __tm, __wcs); 1697 if (__beg == __end) 1698 __err |= ios_base::eofbit; 1699 return __beg; 1700 } 1701 1702 template<typename _CharT, typename _InIter> 1703 _InIter 1704 time_get<_CharT, _InIter>:: 1705 do_get_weekday(iter_type __beg, iter_type __end, ios_base& __io, 1706 ios_base::iostate& __err, tm* __tm) const 1707 { 1708 typedef char_traits<_CharT> __traits_type; 1709 locale __loc = __io.getloc(); 1710 __timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc); 1711 const char_type* __days[7]; 1712 __tp._M_days_abbreviated(__days); 1713 int __tmpwday; 1714 _M_extract_name(__beg, __end, __tmpwday, __days, 7, __err); 1715 1716 // Check to see if non-abbreviated name exists, and extract. 1717 // NB: Assumes both _M_days and _M_days_abbreviated organized in 1718 // exact same order, first to last, such that the resulting 1719 // __days array with the same index points to a day, and that 1720 // day's abbreviated form. 1721 // NB: Also assumes that an abbreviated name is a subset of the name. 1722 if (!__err) 1723 { 1724 size_t __pos = __traits_type::length(__days[__tmpwday]); 1725 __tp._M_days(__days); 1726 const char_type* __name = __days[__tmpwday]; 1727 if (__name[__pos] == *__beg) 1728 { 1729 // Extract the rest of it. 1730 const size_t __len = __traits_type::length(__name); 1731 while (__pos < __len && __beg != __end 1732 && __name[__pos] == *__beg) 1733 ++__beg, ++__pos; 1734 if (__len != __pos) 1735 __err |= ios_base::failbit; 1736 } 1737 if (!__err) 1738 __tm->tm_wday = __tmpwday; 1739 } 1740 if (__beg == __end) 1741 __err |= ios_base::eofbit; 1742 return __beg; 1743 } 1744 1745 template<typename _CharT, typename _InIter> 1746 _InIter 1747 time_get<_CharT, _InIter>:: 1748 do_get_monthname(iter_type __beg, iter_type __end, 1749 ios_base& __io, ios_base::iostate& __err, tm* __tm) const 1750 { 1751 typedef char_traits<_CharT> __traits_type; 1752 locale __loc = __io.getloc(); 1753 __timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc); 1754 const char_type* __months[12]; 1755 __tp._M_months_abbreviated(__months); 1756 int __tmpmon; 1757 _M_extract_name(__beg, __end, __tmpmon, __months, 12, __err); 1758 1759 // Check to see if non-abbreviated name exists, and extract. 1760 // NB: Assumes both _M_months and _M_months_abbreviated organized in 1761 // exact same order, first to last, such that the resulting 1762 // __months array with the same index points to a month, and that 1763 // month's abbreviated form. 1764 // NB: Also assumes that an abbreviated name is a subset of the name. 1765 if (!__err) 1766 { 1767 size_t __pos = __traits_type::length(__months[__tmpmon]); 1768 __tp._M_months(__months); 1769 const char_type* __name = __months[__tmpmon]; 1770 if (__name[__pos] == *__beg) 1771 { 1772 // Extract the rest of it. 1773 const size_t __len = __traits_type::length(__name); 1774 while (__pos < __len && __beg != __end 1775 && __name[__pos] == *__beg) 1776 ++__beg, ++__pos; 1777 if (__len != __pos) 1778 __err |= ios_base::failbit; 1779 } 1780 if (!__err) 1781 __tm->tm_mon = __tmpmon; 1782 } 1783 1784 if (__beg == __end) 1785 __err |= ios_base::eofbit; 1786 return __beg; 1787 } 1788 1789 template<typename _CharT, typename _InIter> 1790 _InIter 1791 time_get<_CharT, _InIter>:: 1792 do_get_year(iter_type __beg, iter_type __end, ios_base& __io, 1793 ios_base::iostate& __err, tm* __tm) const 1794 { 1795 locale __loc = __io.getloc(); 1796 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 1797 1798 char_type __c = *__beg; 1799 size_t __i = 0; 1800 string __digits; 1801 while (__i < 4 && __beg != __end && __ctype.is(ctype_base::digit, __c)) 1802 { 1803 __digits += __ctype.narrow(__c, 0); 1804 __c = *(++__beg); 1805 ++__i; 1806 } 1807 if (__i == 2 || __i == 4) 1808 { 1809 long __l; 1810 __convert_to_v(__digits.c_str(), __l, __err, _S_c_locale); 1811 if (!(__err & ios_base::failbit) && __l <= INT_MAX) 1812 { 1813 __l = __i == 2 ? __l : __l - 1900; 1814 __tm->tm_year = static_cast<int>(__l); 1815 } 1816 } 1817 else 1818 __err |= ios_base::failbit; 1819 if (__beg == __end) 1820 __err |= ios_base::eofbit; 1821 return __beg; 1822 } 1823 1824 template<typename _CharT, typename _OutIter> 1825 _OutIter 1826 time_put<_CharT, _OutIter>:: 1827 put(iter_type __s, ios_base& __io, char_type, const tm* __tm, 1828 const _CharT* __beg, const _CharT* __end) const 1829 { 1830 locale __loc = __io.getloc(); 1831 ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc); 1832 while (__beg != __end) 1833 { 1834 char __c = __ctype.narrow(*__beg, 0); 1835 ++__beg; 1836 if (__c == '%') 1837 { 1838 char __format; 1839 char __mod = 0; 1840 size_t __len = 1; 1841 __c = __ctype.narrow(*__beg, 0); 1842 ++__beg; 1843 if (__c == 'E' || __c == 'O') 1844 { 1845 __mod = __c; 1846 __format = __ctype.narrow(*__beg, 0); 1847 ++__beg; 1848 } 1849 else 1850 __format = __c; 1851 __s = this->do_put(__s, __io, char_type(), __tm, __format, 1852 __mod); 1853 } 1854 else 1855 { 1856 *__s = __c; 1857 ++__s; 1858 } 1859 } 1860 return __s; 1861 } 1862 1863 template<typename _CharT, typename _OutIter> 1864 _OutIter 1865 time_put<_CharT, _OutIter>:: 1866 do_put(iter_type __s, ios_base& __io, char_type, const tm* __tm, 1867 char __format, char __mod) const 1868 { 1869 locale __loc = __io.getloc(); 1870 ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc); 1871 __timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc); 1872 1873 // NB: This size is arbitrary. Should this be a data member, 1874 // initialized at construction? 1875 const size_t __maxlen = 64; 1876 char_type* __res = 1877 static_cast<char_type*>(__builtin_alloca(sizeof(char_type) * __maxlen)); 1878 1879 // NB: In IEE 1003.1-200x, and perhaps other locale models, it 1880 // is possible that the format character will be longer than one 1881 // character. Possibilities include 'E' or 'O' followed by a 1882 // format character: if __mod is not the default argument, assume 1883 // it's a valid modifier. 1884 char_type __fmt[4]; 1885 __fmt[0] = __ctype.widen('%'); 1886 if (!__mod) 1887 { 1888 __fmt[1] = __format; 1889 __fmt[2] = char_type(); 1890 } 1891 else 1892 { 1893 __fmt[1] = __mod; 1894 __fmt[2] = __format; 1895 __fmt[3] = char_type(); 1896 } 1897 1898 __tp._M_put(__res, __maxlen, __fmt, __tm); 1899 1900 // Write resulting, fully-formatted string to output iterator. 1901 size_t __len = char_traits<char_type>::length(__res); 1902 for (size_t __i = 0; __i < __len; ++__i, ++__s) 1903 *__s = __res[__i]; 1904 return __s; 1905 } 1906 1907 1908 // Generic version does nothing. 1909 template<typename _CharT> 1910 int 1911 collate<_CharT>::_M_compare(const _CharT*, const _CharT*) const 1912 { return 0; } 1913 1914 // Generic version does nothing. 1915 template<typename _CharT> 1916 size_t 1917 collate<_CharT>::_M_transform(_CharT*, const _CharT*, size_t) const 1918 { return 0; } 1919 1920 template<typename _CharT> 1921 int 1922 collate<_CharT>:: 1923 do_compare(const _CharT* __lo1, const _CharT* __hi1, 1924 const _CharT* __lo2, const _CharT* __hi2) const 1925 { 1926 const string_type __one(__lo1, __hi1); 1927 const string_type __two(__lo2, __hi2); 1928 return _M_compare(__one.c_str(), __two.c_str()); 1929 } 1930 1931 template<typename _CharT> 1932 typename collate<_CharT>::string_type 1933 collate<_CharT>:: 1934 do_transform(const _CharT* __lo, const _CharT* __hi) const 1935 { 1936 size_t __len = (__hi - __lo) * 2; 1937 // First try a buffer perhaps big enough. 1938 _CharT* __c = 1939 static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * __len)); 1940 size_t __res = _M_transform(__c, __lo, __len); 1941 // If the buffer was not large enough, try again with the correct size. 1942 if (__res >= __len) 1943 { 1944 __c = 1945 static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * (__res + 1))); 1946 _M_transform(__c, __lo, __res + 1); 1947 } 1948 return string_type(__c); 1949 } 1950 1951 template<typename _CharT> 1952 long 1953 collate<_CharT>:: 1954 do_hash(const _CharT* __lo, const _CharT* __hi) const 1955 { 1956 unsigned long __val = 0; 1957 for (; __lo < __hi; ++__lo) 1958 __val = *__lo + ((__val << 7) | 1959 (__val >> (numeric_limits<unsigned long>::digits - 7))); 1960 return static_cast<long>(__val); 1961 } 1962 1963 // Convert string to numeric value of type _Tv and store results. 1964 // NB: This is specialized for all required types, there is no 1965 // generic definition. 1966 template<typename _Tv> 1967 void 1968 __convert_to_v(const char* __in, _Tv& __out, ios_base::iostate& __err, 1969 const __c_locale& __cloc, int __base = 10); 1970 1971 // Convert numeric value of type _Tv to string and return length of string. 1972 // If snprintf is available use it, otherwise fall back to the unsafe sprintf 1973 // which, in general, can be dangerous and should be avoided. 1974 template<typename _Tv> 1975 int 1976 __convert_from_v(char* __out, const int __size, const char* __fmt, 1977 _Tv __v, const __c_locale&, int __prec = -1); 1978 1979 // Construct correctly padded string, as per 22.2.2.2.2 1980 // Assumes 1981 // __newlen > __oldlen 1982 // __news is allocated for __newlen size 1983 // Used by both num_put and ostream inserters: if __num, 1984 // internal-adjusted objects are padded according to the rules below 1985 // concerning 0[xX] and +-, otherwise, exactly as right-adjusted 1986 // ones are. 1987 1988 // NB: Of the two parameters, _CharT can be deduced from the 1989 // function arguments. The other (_Traits) has to be explicitly specified. 1990 template<typename _CharT, typename _Traits> 1991 struct __pad 1992 { 1993 static void 1994 _S_pad(ios_base& __io, _CharT __fill, _CharT* __news, 1995 const _CharT* __olds, const streamsize __newlen, 1996 const streamsize __oldlen, const bool __num); 1997 }; 1998 1999 template<typename _CharT, typename _Traits> 2000 void 2001 __pad<_CharT, _Traits>::_S_pad(ios_base& __io, _CharT __fill, 2002 _CharT* __news, const _CharT* __olds, 2003 const streamsize __newlen, 2004 const streamsize __oldlen, const bool __num) 2005 { 2006 size_t __plen = static_cast<size_t>(__newlen - __oldlen); 2007 _CharT* __pads = static_cast<_CharT*>(__builtin_alloca(sizeof(_CharT) * __plen)); 2008 _Traits::assign(__pads, __plen, __fill); 2009 2010 _CharT* __beg; 2011 _CharT* __end; 2012 size_t __mod = 0; 2013 size_t __beglen; //either __plen or __oldlen 2014 ios_base::fmtflags __adjust = __io.flags() & ios_base::adjustfield; 2015 2016 if (__adjust == ios_base::left) 2017 { 2018 // Padding last. 2019 __beg = const_cast<_CharT*>(__olds); 2020 __beglen = __oldlen; 2021 __end = __pads; 2022 } 2023 else if (__adjust == ios_base::internal && __num) 2024 { 2025 // Pad after the sign, if there is one. 2026 // Pad after 0[xX], if there is one. 2027 // Who came up with these rules, anyway? Jeeze. 2028 locale __loc = __io.getloc(); 2029 const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc); 2030 const _CharT __minus = __ctype.widen('-'); 2031 const _CharT __plus = __ctype.widen('+'); 2032 bool __testsign = _Traits::eq(__olds[0], __minus) 2033 || _Traits::eq(__olds[0], __plus); 2034 2035 bool __testhex = _Traits::eq(__ctype.widen('0'), __olds[0]) 2036 && (_Traits::eq(__ctype.widen('x'), __olds[1]) 2037 || _Traits::eq(__ctype.widen('X'), __olds[1])); 2038 if (__testhex) 2039 { 2040 __news[0] = __olds[0]; 2041 __news[1] = __olds[1]; 2042 __mod += 2; 2043 __news += 2; 2044 __beg = __pads; 2045 __beglen = __plen; 2046 __end = const_cast<_CharT*>(__olds + __mod); 2047 } 2048 else if (__testsign) 2049 { 2050 _Traits::eq((__news[0] = __olds[0]), __plus) ? __plus : __minus; 2051 ++__mod; 2052 ++__news; 2053 __beg = __pads; 2054 __beglen = __plen; 2055 __end = const_cast<_CharT*>(__olds + __mod); 2056 } 2057 else 2058 { 2059 // Padding first. 2060 __beg = __pads; 2061 __beglen = __plen; 2062 __end = const_cast<_CharT*>(__olds); 2063 } 2064 } 2065 else 2066 { 2067 // Padding first. 2068 __beg = __pads; 2069 __beglen = __plen; 2070 __end = const_cast<_CharT*>(__olds); 2071 } 2072 _Traits::copy(__news, __beg, __beglen); 2073 _Traits::copy(__news + __beglen, __end, 2074 __newlen - __beglen - __mod); 2075 } 2076 2077 // Used by both numeric and monetary facets. 2078 // Check to make sure that the __grouping_tmp string constructed in 2079 // money_get or num_get matches the canonical grouping for a given 2080 // locale. 2081 // __grouping_tmp is parsed L to R 2082 // 1,222,444 == __grouping_tmp of "/1/3/3" 2083 // __grouping is parsed R to L 2084 // 1,222,444 == __grouping of "/3" == "/3/3/3" 2085 template<typename _CharT> 2086 bool 2087 __verify_grouping(const basic_string<_CharT>& __grouping, 2088 basic_string<_CharT>& __grouping_tmp) 2089 { 2090 int __i = 0; 2091 int __j = 0; 2092 const int __len = __grouping.size(); 2093 const int __n = __grouping_tmp.size(); 2094 bool __test = true; 2095 2096 // Parsed number groupings have to match the 2097 // numpunct::grouping string exactly, starting at the 2098 // right-most point of the parsed sequence of elements ... 2099 while (__test && __i < __n - 1) 2100 for (__j = 0; __test && __j < __len && __i < __n - 1; ++__j,++__i) 2101 __test &= __grouping[__j] == __grouping_tmp[__n - __i - 1]; 2102 // ... but the last parsed grouping can be <= numpunct 2103 // grouping. 2104 __j == __len ? __j = 0 : __j; 2105 __test &= __grouping[__j] >= __grouping_tmp[__n - __i - 1]; 2106 return __test; 2107 } 2108 2109 // Used by both numeric and monetary facets. 2110 // Inserts "group separator" characters into an array of characters. 2111 // It's recursive, one iteration per group. It moves the characters 2112 // in the buffer this way: "xxxx12345" -> "12,345xxx". Call this 2113 // only with __gbeg != __gend. 2114 template<typename _CharT> 2115 _CharT* 2116 __add_grouping(_CharT* __s, _CharT __sep, 2117 const char* __gbeg, const char* __gend, 2118 const _CharT* __first, const _CharT* __last) 2119 { 2120 if (__last - __first > *__gbeg) 2121 { 2122 __s = __add_grouping(__s, __sep, 2123 (__gbeg + 1 == __gend ? __gbeg : __gbeg + 1), 2124 __gend, __first, __last - *__gbeg); 2125 __first = __last - *__gbeg; 2126 *__s++ = __sep; 2127 } 2128 do 2129 *__s++ = *__first++; 2130 while (__first != __last); 2131 return __s; 2132 } 2133 2134 // Inhibit implicit instantiations for required instantiations, 2135 // which are defined via explicit instantiations elsewhere. 2136 // NB: This syntax is a GNU extension. 2137 extern template class moneypunct<char, false>; 2138 extern template class moneypunct<char, true>; 2139 extern template class moneypunct_byname<char, false>; 2140 extern template class moneypunct_byname<char, true>; 2141 extern template class money_get<char>; 2142 extern template class money_put<char>; 2143 extern template class numpunct<char>; 2144 extern template class numpunct_byname<char>; 2145 extern template class num_get<char>; 2146 extern template class num_put<char>; 2147 extern template class __timepunct<char>; 2148 extern template class time_put<char>; 2149 extern template class time_put_byname<char>; 2150 extern template class time_get<char>; 2151 extern template class time_get_byname<char>; 2152 extern template class messages<char>; 2153 extern template class messages_byname<char>; 2154 extern template class ctype_byname<char>; 2155 extern template class codecvt_byname<char, char, mbstate_t>; 2156 extern template class collate<char>; 2157 extern template class collate_byname<char>; 2158 2159 extern template 2160 const codecvt<char, char, mbstate_t>& 2161 use_facet<codecvt<char, char, mbstate_t> >(const locale&); 2162 2163 extern template 2164 const collate<char>& 2165 use_facet<collate<char> >(const locale&); 2166 2167 extern template 2168 const numpunct<char>& 2169 use_facet<numpunct<char> >(const locale&); 2170 2171 extern template 2172 const num_put<char>& 2173 use_facet<num_put<char> >(const locale&); 2174 2175 extern template 2176 const num_get<char>& 2177 use_facet<num_get<char> >(const locale&); 2178 2179 extern template 2180 const moneypunct<char, true>& 2181 use_facet<moneypunct<char, true> >(const locale&); 2182 2183 extern template 2184 const moneypunct<char, false>& 2185 use_facet<moneypunct<char, false> >(const locale&); 2186 2187 extern template 2188 const money_put<char>& 2189 use_facet<money_put<char> >(const locale&); 2190 2191 extern template 2192 const money_get<char>& 2193 use_facet<money_get<char> >(const locale&); 2194 2195 extern template 2196 const __timepunct<char>& 2197 use_facet<__timepunct<char> >(const locale&); 2198 2199 extern template 2200 const time_put<char>& 2201 use_facet<time_put<char> >(const locale&); 2202 2203 extern template 2204 const time_get<char>& 2205 use_facet<time_get<char> >(const locale&); 2206 2207 extern template 2208 const messages<char>& 2209 use_facet<messages<char> >(const locale&); 2210 2211 extern template 2212 bool 2213 has_facet<ctype<char> >(const locale&); 2214 2215 extern template 2216 bool 2217 has_facet<codecvt<char, char, mbstate_t> >(const locale&); 2218 2219 extern template 2220 bool 2221 has_facet<collate<char> >(const locale&); 2222 2223 extern template 2224 bool 2225 has_facet<numpunct<char> >(const locale&); 2226 2227 extern template 2228 bool 2229 has_facet<num_put<char> >(const locale&); 2230 2231 extern template 2232 bool 2233 has_facet<num_get<char> >(const locale&); 2234 2235 extern template 2236 bool 2237 has_facet<moneypunct<char> >(const locale&); 2238 2239 extern template 2240 bool 2241 has_facet<money_put<char> >(const locale&); 2242 2243 extern template 2244 bool 2245 has_facet<money_get<char> >(const locale&); 2246 2247 extern template 2248 bool 2249 has_facet<__timepunct<char> >(const locale&); 2250 2251 extern template 2252 bool 2253 has_facet<time_put<char> >(const locale&); 2254 2255 extern template 2256 bool 2257 has_facet<time_get<char> >(const locale&); 2258 2259 extern template 2260 bool 2261 has_facet<messages<char> >(const locale&); 2262 2263#ifdef _GLIBCPP_USE_WCHAR_T 2264 extern template class moneypunct<wchar_t, false>; 2265 extern template class moneypunct<wchar_t, true>; 2266 extern template class moneypunct_byname<wchar_t, false>; 2267 extern template class moneypunct_byname<wchar_t, true>; 2268 extern template class money_get<wchar_t>; 2269 extern template class money_put<wchar_t>; 2270 extern template class numpunct<wchar_t>; 2271 extern template class numpunct_byname<wchar_t>; 2272 extern template class num_get<wchar_t>; 2273 extern template class num_put<wchar_t>; 2274 extern template class __timepunct<wchar_t>; 2275 extern template class time_put<wchar_t>; 2276 extern template class time_put_byname<wchar_t>; 2277 extern template class time_get<wchar_t>; 2278 extern template class time_get_byname<wchar_t>; 2279 extern template class messages<wchar_t>; 2280 extern template class messages_byname<wchar_t>; 2281 extern template class ctype_byname<wchar_t>; 2282 extern template class codecvt_byname<wchar_t, char, mbstate_t>; 2283 extern template class collate<wchar_t>; 2284 extern template class collate_byname<wchar_t>; 2285 2286 extern template 2287 const codecvt<wchar_t, char, mbstate_t>& 2288 use_facet<codecvt<wchar_t, char, mbstate_t> >(locale const&); 2289 2290 extern template 2291 const collate<wchar_t>& 2292 use_facet<collate<wchar_t> >(const locale&); 2293 2294 extern template 2295 const numpunct<wchar_t>& 2296 use_facet<numpunct<wchar_t> >(const locale&); 2297 2298 extern template 2299 const num_put<wchar_t>& 2300 use_facet<num_put<wchar_t> >(const locale&); 2301 2302 extern template 2303 const num_get<wchar_t>& 2304 use_facet<num_get<wchar_t> >(const locale&); 2305 2306 extern template 2307 const moneypunct<wchar_t, true>& 2308 use_facet<moneypunct<wchar_t, true> >(const locale&); 2309 2310 extern template 2311 const moneypunct<wchar_t, false>& 2312 use_facet<moneypunct<wchar_t, false> >(const locale&); 2313 2314 extern template 2315 const money_put<wchar_t>& 2316 use_facet<money_put<wchar_t> >(const locale&); 2317 2318 extern template 2319 const money_get<wchar_t>& 2320 use_facet<money_get<wchar_t> >(const locale&); 2321 2322 extern template 2323 const __timepunct<wchar_t>& 2324 use_facet<__timepunct<wchar_t> >(const locale&); 2325 2326 extern template 2327 const time_put<wchar_t>& 2328 use_facet<time_put<wchar_t> >(const locale&); 2329 2330 extern template 2331 const time_get<wchar_t>& 2332 use_facet<time_get<wchar_t> >(const locale&); 2333 2334 extern template 2335 const messages<wchar_t>& 2336 use_facet<messages<wchar_t> >(const locale&); 2337 2338 extern template 2339 bool 2340 has_facet<ctype<wchar_t> >(const locale&); 2341 2342 extern template 2343 bool 2344 has_facet<codecvt<wchar_t, char, mbstate_t> >(const locale&); 2345 2346 extern template 2347 bool 2348 has_facet<collate<wchar_t> >(const locale&); 2349 2350 extern template 2351 bool 2352 has_facet<numpunct<wchar_t> >(const locale&); 2353 2354 extern template 2355 bool 2356 has_facet<num_put<wchar_t> >(const locale&); 2357 2358 extern template 2359 bool 2360 has_facet<num_get<wchar_t> >(const locale&); 2361 2362 extern template 2363 bool 2364 has_facet<moneypunct<wchar_t> >(const locale&); 2365 2366 extern template 2367 bool 2368 has_facet<money_put<wchar_t> >(const locale&); 2369 2370 extern template 2371 bool 2372 has_facet<money_get<wchar_t> >(const locale&); 2373 2374 extern template 2375 bool 2376 has_facet<__timepunct<wchar_t> >(const locale&); 2377 2378 extern template 2379 bool 2380 has_facet<time_put<wchar_t> >(const locale&); 2381 2382 extern template 2383 bool 2384 has_facet<time_get<wchar_t> >(const locale&); 2385 2386 extern template 2387 bool 2388 has_facet<messages<wchar_t> >(const locale&); 2389#endif 2390} // namespace std 2391 2392#endif 2393