libstdc++
locale_facets_nonio.tcc
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1 // Locale support -*- C++ -*-
2 
3 // Copyright (C) 2007, 2008, 2009, 2010, 2011 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.tcc
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 #ifndef _LOCALE_FACETS_NONIO_TCC
31 #define _LOCALE_FACETS_NONIO_TCC 1
32 
33 #pragma GCC system_header
34 
35 namespace std _GLIBCXX_VISIBILITY(default)
36 {
37 _GLIBCXX_BEGIN_NAMESPACE_VERSION
38 
39  template<typename _CharT, bool _Intl>
40  struct __use_cache<__moneypunct_cache<_CharT, _Intl> >
41  {
42  const __moneypunct_cache<_CharT, _Intl>*
43  operator() (const locale& __loc) const
44  {
45  const size_t __i = moneypunct<_CharT, _Intl>::id._M_id();
46  const locale::facet** __caches = __loc._M_impl->_M_caches;
47  if (!__caches[__i])
48  {
49  __moneypunct_cache<_CharT, _Intl>* __tmp = 0;
50  __try
51  {
52  __tmp = new __moneypunct_cache<_CharT, _Intl>;
53  __tmp->_M_cache(__loc);
54  }
55  __catch(...)
56  {
57  delete __tmp;
58  __throw_exception_again;
59  }
60  __loc._M_impl->_M_install_cache(__tmp, __i);
61  }
62  return static_cast<
63  const __moneypunct_cache<_CharT, _Intl>*>(__caches[__i]);
64  }
65  };
66 
67  template<typename _CharT, bool _Intl>
68  void
69  __moneypunct_cache<_CharT, _Intl>::_M_cache(const locale& __loc)
70  {
71  _M_allocated = true;
72 
73  const moneypunct<_CharT, _Intl>& __mp =
74  use_facet<moneypunct<_CharT, _Intl> >(__loc);
75 
76  _M_decimal_point = __mp.decimal_point();
77  _M_thousands_sep = __mp.thousands_sep();
78  _M_frac_digits = __mp.frac_digits();
79 
80  char* __grouping = 0;
81  _CharT* __curr_symbol = 0;
82  _CharT* __positive_sign = 0;
83  _CharT* __negative_sign = 0;
84  __try
85  {
86  _M_grouping_size = __mp.grouping().size();
87  __grouping = new char[_M_grouping_size];
88  __mp.grouping().copy(__grouping, _M_grouping_size);
89  _M_grouping = __grouping;
90  _M_use_grouping = (_M_grouping_size
91  && static_cast<signed char>(_M_grouping[0]) > 0
92  && (_M_grouping[0]
93  != __gnu_cxx::__numeric_traits<char>::__max));
94 
95  _M_curr_symbol_size = __mp.curr_symbol().size();
96  __curr_symbol = new _CharT[_M_curr_symbol_size];
97  __mp.curr_symbol().copy(__curr_symbol, _M_curr_symbol_size);
98  _M_curr_symbol = __curr_symbol;
99 
100  _M_positive_sign_size = __mp.positive_sign().size();
101  __positive_sign = new _CharT[_M_positive_sign_size];
102  __mp.positive_sign().copy(__positive_sign, _M_positive_sign_size);
103  _M_positive_sign = __positive_sign;
104 
105  _M_negative_sign_size = __mp.negative_sign().size();
106  __negative_sign = new _CharT[_M_negative_sign_size];
107  __mp.negative_sign().copy(__negative_sign, _M_negative_sign_size);
108  _M_negative_sign = __negative_sign;
109 
110  _M_pos_format = __mp.pos_format();
111  _M_neg_format = __mp.neg_format();
112 
113  const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__loc);
114  __ct.widen(money_base::_S_atoms,
115  money_base::_S_atoms + money_base::_S_end, _M_atoms);
116  }
117  __catch(...)
118  {
119  delete [] __grouping;
120  delete [] __curr_symbol;
121  delete [] __positive_sign;
122  delete [] __negative_sign;
123  __throw_exception_again;
124  }
125  }
126 
127 _GLIBCXX_BEGIN_NAMESPACE_LDBL
128 
129  template<typename _CharT, typename _InIter>
130  template<bool _Intl>
131  _InIter
132  money_get<_CharT, _InIter>::
133  _M_extract(iter_type __beg, iter_type __end, ios_base& __io,
134  ios_base::iostate& __err, string& __units) const
135  {
136  typedef char_traits<_CharT> __traits_type;
137  typedef typename string_type::size_type size_type;
138  typedef money_base::part part;
139  typedef __moneypunct_cache<_CharT, _Intl> __cache_type;
140 
141  const locale& __loc = __io._M_getloc();
142  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
143 
144  __use_cache<__cache_type> __uc;
145  const __cache_type* __lc = __uc(__loc);
146  const char_type* __lit = __lc->_M_atoms;
147 
148  // Deduced sign.
149  bool __negative = false;
150  // Sign size.
151  size_type __sign_size = 0;
152  // True if sign is mandatory.
153  const bool __mandatory_sign = (__lc->_M_positive_sign_size
154  && __lc->_M_negative_sign_size);
155  // String of grouping info from thousands_sep plucked from __units.
156  string __grouping_tmp;
157  if (__lc->_M_use_grouping)
158  __grouping_tmp.reserve(32);
159  // Last position before the decimal point.
160  int __last_pos = 0;
161  // Separator positions, then, possibly, fractional digits.
162  int __n = 0;
163  // If input iterator is in a valid state.
164  bool __testvalid = true;
165  // Flag marking when a decimal point is found.
166  bool __testdecfound = false;
167 
168  // The tentative returned string is stored here.
169  string __res;
170  __res.reserve(32);
171 
172  const char_type* __lit_zero = __lit + money_base::_S_zero;
173  const money_base::pattern __p = __lc->_M_neg_format;
174  for (int __i = 0; __i < 4 && __testvalid; ++__i)
175  {
176  const part __which = static_cast<part>(__p.field[__i]);
177  switch (__which)
178  {
179  case money_base::symbol:
180  // According to 22.2.6.1.2, p2, symbol is required
181  // if (__io.flags() & ios_base::showbase), otherwise
182  // is optional and consumed only if other characters
183  // are needed to complete the format.
184  if (__io.flags() & ios_base::showbase || __sign_size > 1
185  || __i == 0
186  || (__i == 1 && (__mandatory_sign
187  || (static_cast<part>(__p.field[0])
188  == money_base::sign)
189  || (static_cast<part>(__p.field[2])
190  == money_base::space)))
191  || (__i == 2 && ((static_cast<part>(__p.field[3])
192  == money_base::value)
193  || (__mandatory_sign
194  && (static_cast<part>(__p.field[3])
195  == money_base::sign)))))
196  {
197  const size_type __len = __lc->_M_curr_symbol_size;
198  size_type __j = 0;
199  for (; __beg != __end && __j < __len
200  && *__beg == __lc->_M_curr_symbol[__j];
201  ++__beg, ++__j);
202  if (__j != __len
203  && (__j || __io.flags() & ios_base::showbase))
204  __testvalid = false;
205  }
206  break;
207  case money_base::sign:
208  // Sign might not exist, or be more than one character long.
209  if (__lc->_M_positive_sign_size && __beg != __end
210  && *__beg == __lc->_M_positive_sign[0])
211  {
212  __sign_size = __lc->_M_positive_sign_size;
213  ++__beg;
214  }
215  else if (__lc->_M_negative_sign_size && __beg != __end
216  && *__beg == __lc->_M_negative_sign[0])
217  {
218  __negative = true;
219  __sign_size = __lc->_M_negative_sign_size;
220  ++__beg;
221  }
222  else if (__lc->_M_positive_sign_size
223  && !__lc->_M_negative_sign_size)
224  // "... if no sign is detected, the result is given the sign
225  // that corresponds to the source of the empty string"
226  __negative = true;
227  else if (__mandatory_sign)
228  __testvalid = false;
229  break;
230  case money_base::value:
231  // Extract digits, remove and stash away the
232  // grouping of found thousands separators.
233  for (; __beg != __end; ++__beg)
234  {
235  const char_type __c = *__beg;
236  const char_type* __q = __traits_type::find(__lit_zero,
237  10, __c);
238  if (__q != 0)
239  {
240  __res += money_base::_S_atoms[__q - __lit];
241  ++__n;
242  }
243  else if (__c == __lc->_M_decimal_point
244  && !__testdecfound)
245  {
246  if (__lc->_M_frac_digits <= 0)
247  break;
248 
249  __last_pos = __n;
250  __n = 0;
251  __testdecfound = true;
252  }
253  else if (__lc->_M_use_grouping
254  && __c == __lc->_M_thousands_sep
255  && !__testdecfound)
256  {
257  if (__n)
258  {
259  // Mark position for later analysis.
260  __grouping_tmp += static_cast<char>(__n);
261  __n = 0;
262  }
263  else
264  {
265  __testvalid = false;
266  break;
267  }
268  }
269  else
270  break;
271  }
272  if (__res.empty())
273  __testvalid = false;
274  break;
275  case money_base::space:
276  // At least one space is required.
277  if (__beg != __end && __ctype.is(ctype_base::space, *__beg))
278  ++__beg;
279  else
280  __testvalid = false;
281  case money_base::none:
282  // Only if not at the end of the pattern.
283  if (__i != 3)
284  for (; __beg != __end
285  && __ctype.is(ctype_base::space, *__beg); ++__beg);
286  break;
287  }
288  }
289 
290  // Need to get the rest of the sign characters, if they exist.
291  if (__sign_size > 1 && __testvalid)
292  {
293  const char_type* __sign = __negative ? __lc->_M_negative_sign
294  : __lc->_M_positive_sign;
295  size_type __i = 1;
296  for (; __beg != __end && __i < __sign_size
297  && *__beg == __sign[__i]; ++__beg, ++__i);
298 
299  if (__i != __sign_size)
300  __testvalid = false;
301  }
302 
303  if (__testvalid)
304  {
305  // Strip leading zeros.
306  if (__res.size() > 1)
307  {
308  const size_type __first = __res.find_first_not_of('0');
309  const bool __only_zeros = __first == string::npos;
310  if (__first)
311  __res.erase(0, __only_zeros ? __res.size() - 1 : __first);
312  }
313 
314  // 22.2.6.1.2, p4
315  if (__negative && __res[0] != '0')
316  __res.insert(__res.begin(), '-');
317 
318  // Test for grouping fidelity.
319  if (__grouping_tmp.size())
320  {
321  // Add the ending grouping.
322  __grouping_tmp += static_cast<char>(__testdecfound ? __last_pos
323  : __n);
324  if (!std::__verify_grouping(__lc->_M_grouping,
325  __lc->_M_grouping_size,
326  __grouping_tmp))
327  __err |= ios_base::failbit;
328  }
329 
330  // Iff not enough digits were supplied after the decimal-point.
331  if (__testdecfound && __n != __lc->_M_frac_digits)
332  __testvalid = false;
333  }
334 
335  // Iff valid sequence is not recognized.
336  if (!__testvalid)
337  __err |= ios_base::failbit;
338  else
339  __units.swap(__res);
340 
341  // Iff no more characters are available.
342  if (__beg == __end)
343  __err |= ios_base::eofbit;
344  return __beg;
345  }
346 
347 #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
348  template<typename _CharT, typename _InIter>
349  _InIter
350  money_get<_CharT, _InIter>::
351  __do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io,
352  ios_base::iostate& __err, double& __units) const
353  {
354  string __str;
355  __beg = __intl ? _M_extract<true>(__beg, __end, __io, __err, __str)
356  : _M_extract<false>(__beg, __end, __io, __err, __str);
357  std::__convert_to_v(__str.c_str(), __units, __err, _S_get_c_locale());
358  return __beg;
359  }
360 #endif
361 
362  template<typename _CharT, typename _InIter>
363  _InIter
365  do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io,
366  ios_base::iostate& __err, long double& __units) const
367  {
368  string __str;
369  __beg = __intl ? _M_extract<true>(__beg, __end, __io, __err, __str)
370  : _M_extract<false>(__beg, __end, __io, __err, __str);
371  std::__convert_to_v(__str.c_str(), __units, __err, _S_get_c_locale());
372  return __beg;
373  }
374 
375  template<typename _CharT, typename _InIter>
376  _InIter
378  do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io,
379  ios_base::iostate& __err, string_type& __digits) const
380  {
381  typedef typename string::size_type size_type;
382 
383  const locale& __loc = __io._M_getloc();
384  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
385 
386  string __str;
387  __beg = __intl ? _M_extract<true>(__beg, __end, __io, __err, __str)
388  : _M_extract<false>(__beg, __end, __io, __err, __str);
389  const size_type __len = __str.size();
390  if (__len)
391  {
392  __digits.resize(__len);
393  __ctype.widen(__str.data(), __str.data() + __len, &__digits[0]);
394  }
395  return __beg;
396  }
397 
398  template<typename _CharT, typename _OutIter>
399  template<bool _Intl>
400  _OutIter
402  _M_insert(iter_type __s, ios_base& __io, char_type __fill,
403  const string_type& __digits) const
404  {
405  typedef typename string_type::size_type size_type;
406  typedef money_base::part part;
407  typedef __moneypunct_cache<_CharT, _Intl> __cache_type;
408 
409  const locale& __loc = __io._M_getloc();
410  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
411 
412  __use_cache<__cache_type> __uc;
413  const __cache_type* __lc = __uc(__loc);
414  const char_type* __lit = __lc->_M_atoms;
415 
416  // Determine if negative or positive formats are to be used, and
417  // discard leading negative_sign if it is present.
418  const char_type* __beg = __digits.data();
419 
420  money_base::pattern __p;
421  const char_type* __sign;
422  size_type __sign_size;
423  if (!(*__beg == __lit[money_base::_S_minus]))
424  {
425  __p = __lc->_M_pos_format;
426  __sign = __lc->_M_positive_sign;
427  __sign_size = __lc->_M_positive_sign_size;
428  }
429  else
430  {
431  __p = __lc->_M_neg_format;
432  __sign = __lc->_M_negative_sign;
433  __sign_size = __lc->_M_negative_sign_size;
434  if (__digits.size())
435  ++__beg;
436  }
437 
438  // Look for valid numbers in the ctype facet within input digits.
439  size_type __len = __ctype.scan_not(ctype_base::digit, __beg,
440  __beg + __digits.size()) - __beg;
441  if (__len)
442  {
443  // Assume valid input, and attempt to format.
444  // Break down input numbers into base components, as follows:
445  // final_value = grouped units + (decimal point) + (digits)
446  string_type __value;
447  __value.reserve(2 * __len);
448 
449  // Add thousands separators to non-decimal digits, per
450  // grouping rules.
451  long __paddec = __len - __lc->_M_frac_digits;
452  if (__paddec > 0)
453  {
454  if (__lc->_M_frac_digits < 0)
455  __paddec = __len;
456  if (__lc->_M_grouping_size)
457  {
458  __value.assign(2 * __paddec, char_type());
459  _CharT* __vend =
460  std::__add_grouping(&__value[0], __lc->_M_thousands_sep,
461  __lc->_M_grouping,
462  __lc->_M_grouping_size,
463  __beg, __beg + __paddec);
464  __value.erase(__vend - &__value[0]);
465  }
466  else
467  __value.assign(__beg, __paddec);
468  }
469 
470  // Deal with decimal point, decimal digits.
471  if (__lc->_M_frac_digits > 0)
472  {
473  __value += __lc->_M_decimal_point;
474  if (__paddec >= 0)
475  __value.append(__beg + __paddec, __lc->_M_frac_digits);
476  else
477  {
478  // Have to pad zeros in the decimal position.
479  __value.append(-__paddec, __lit[money_base::_S_zero]);
480  __value.append(__beg, __len);
481  }
482  }
483 
484  // Calculate length of resulting string.
485  const ios_base::fmtflags __f = __io.flags()
487  __len = __value.size() + __sign_size;
488  __len += ((__io.flags() & ios_base::showbase)
489  ? __lc->_M_curr_symbol_size : 0);
490 
491  string_type __res;
492  __res.reserve(2 * __len);
493 
494  const size_type __width = static_cast<size_type>(__io.width());
495  const bool __testipad = (__f == ios_base::internal
496  && __len < __width);
497  // Fit formatted digits into the required pattern.
498  for (int __i = 0; __i < 4; ++__i)
499  {
500  const part __which = static_cast<part>(__p.field[__i]);
501  switch (__which)
502  {
503  case money_base::symbol:
504  if (__io.flags() & ios_base::showbase)
505  __res.append(__lc->_M_curr_symbol,
506  __lc->_M_curr_symbol_size);
507  break;
508  case money_base::sign:
509  // Sign might not exist, or be more than one
510  // character long. In that case, add in the rest
511  // below.
512  if (__sign_size)
513  __res += __sign[0];
514  break;
515  case money_base::value:
516  __res += __value;
517  break;
518  case money_base::space:
519  // At least one space is required, but if internal
520  // formatting is required, an arbitrary number of
521  // fill spaces will be necessary.
522  if (__testipad)
523  __res.append(__width - __len, __fill);
524  else
525  __res += __fill;
526  break;
527  case money_base::none:
528  if (__testipad)
529  __res.append(__width - __len, __fill);
530  break;
531  }
532  }
533 
534  // Special case of multi-part sign parts.
535  if (__sign_size > 1)
536  __res.append(__sign + 1, __sign_size - 1);
537 
538  // Pad, if still necessary.
539  __len = __res.size();
540  if (__width > __len)
541  {
542  if (__f == ios_base::left)
543  // After.
544  __res.append(__width - __len, __fill);
545  else
546  // Before.
547  __res.insert(0, __width - __len, __fill);
548  __len = __width;
549  }
550 
551  // Write resulting, fully-formatted string to output iterator.
552  __s = std::__write(__s, __res.data(), __len);
553  }
554  __io.width(0);
555  return __s;
556  }
557 
558 #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__
559  template<typename _CharT, typename _OutIter>
560  _OutIter
561  money_put<_CharT, _OutIter>::
562  __do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill,
563  double __units) const
564  { return this->do_put(__s, __intl, __io, __fill, (long double) __units); }
565 #endif
566 
567  template<typename _CharT, typename _OutIter>
568  _OutIter
570  do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill,
571  long double __units) const
572  {
573  const locale __loc = __io.getloc();
574  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
575 #ifdef _GLIBCXX_USE_C99
576  // First try a buffer perhaps big enough.
577  int __cs_size = 64;
578  char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
579  // _GLIBCXX_RESOLVE_LIB_DEFECTS
580  // 328. Bad sprintf format modifier in money_put<>::do_put()
581  int __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size,
582  "%.*Lf", 0, __units);
583  // If the buffer was not large enough, try again with the correct size.
584  if (__len >= __cs_size)
585  {
586  __cs_size = __len + 1;
587  __cs = static_cast<char*>(__builtin_alloca(__cs_size));
588  __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size,
589  "%.*Lf", 0, __units);
590  }
591 #else
592  // max_exponent10 + 1 for the integer part, + 2 for sign and '\0'.
593  const int __cs_size =
594  __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 3;
595  char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
596  int __len = std::__convert_from_v(_S_get_c_locale(), __cs, 0, "%.*Lf",
597  0, __units);
598 #endif
599  string_type __digits(__len, char_type());
600  __ctype.widen(__cs, __cs + __len, &__digits[0]);
601  return __intl ? _M_insert<true>(__s, __io, __fill, __digits)
602  : _M_insert<false>(__s, __io, __fill, __digits);
603  }
604 
605  template<typename _CharT, typename _OutIter>
606  _OutIter
608  do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill,
609  const string_type& __digits) const
610  { return __intl ? _M_insert<true>(__s, __io, __fill, __digits)
611  : _M_insert<false>(__s, __io, __fill, __digits); }
612 
613 _GLIBCXX_END_NAMESPACE_LDBL
614 
615  // NB: Not especially useful. Without an ios_base object or some
616  // kind of locale reference, we are left clawing at the air where
617  // the side of the mountain used to be...
618  template<typename _CharT, typename _InIter>
619  time_base::dateorder
621  { return time_base::no_order; }
622 
623  // Expand a strftime format string and parse it. E.g., do_get_date() may
624  // pass %m/%d/%Y => extracted characters.
625  template<typename _CharT, typename _InIter>
626  _InIter
628  _M_extract_via_format(iter_type __beg, iter_type __end, ios_base& __io,
629  ios_base::iostate& __err, tm* __tm,
630  const _CharT* __format) const
631  {
632  const locale& __loc = __io._M_getloc();
633  const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc);
634  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
635  const size_t __len = char_traits<_CharT>::length(__format);
636 
637  ios_base::iostate __tmperr = ios_base::goodbit;
638  size_t __i = 0;
639  for (; __beg != __end && __i < __len && !__tmperr; ++__i)
640  {
641  if (__ctype.narrow(__format[__i], 0) == '%')
642  {
643  // Verify valid formatting code, attempt to extract.
644  char __c = __ctype.narrow(__format[++__i], 0);
645  int __mem = 0;
646  if (__c == 'E' || __c == 'O')
647  __c = __ctype.narrow(__format[++__i], 0);
648  switch (__c)
649  {
650  const char* __cs;
651  _CharT __wcs[10];
652  case 'a':
653  // Abbreviated weekday name [tm_wday]
654  const char_type* __days1[7];
655  __tp._M_days_abbreviated(__days1);
656  __beg = _M_extract_name(__beg, __end, __tm->tm_wday, __days1,
657  7, __io, __tmperr);
658  break;
659  case 'A':
660  // Weekday name [tm_wday].
661  const char_type* __days2[7];
662  __tp._M_days(__days2);
663  __beg = _M_extract_name(__beg, __end, __tm->tm_wday, __days2,
664  7, __io, __tmperr);
665  break;
666  case 'h':
667  case 'b':
668  // Abbreviated month name [tm_mon]
669  const char_type* __months1[12];
670  __tp._M_months_abbreviated(__months1);
671  __beg = _M_extract_name(__beg, __end, __tm->tm_mon,
672  __months1, 12, __io, __tmperr);
673  break;
674  case 'B':
675  // Month name [tm_mon].
676  const char_type* __months2[12];
677  __tp._M_months(__months2);
678  __beg = _M_extract_name(__beg, __end, __tm->tm_mon,
679  __months2, 12, __io, __tmperr);
680  break;
681  case 'c':
682  // Default time and date representation.
683  const char_type* __dt[2];
684  __tp._M_date_time_formats(__dt);
685  __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
686  __tm, __dt[0]);
687  break;
688  case 'd':
689  // Day [01, 31]. [tm_mday]
690  __beg = _M_extract_num(__beg, __end, __tm->tm_mday, 1, 31, 2,
691  __io, __tmperr);
692  break;
693  case 'e':
694  // Day [1, 31], with single digits preceded by
695  // space. [tm_mday]
696  if (__ctype.is(ctype_base::space, *__beg))
697  __beg = _M_extract_num(++__beg, __end, __tm->tm_mday, 1, 9,
698  1, __io, __tmperr);
699  else
700  __beg = _M_extract_num(__beg, __end, __tm->tm_mday, 10, 31,
701  2, __io, __tmperr);
702  break;
703  case 'D':
704  // Equivalent to %m/%d/%y.[tm_mon, tm_mday, tm_year]
705  __cs = "%m/%d/%y";
706  __ctype.widen(__cs, __cs + 9, __wcs);
707  __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
708  __tm, __wcs);
709  break;
710  case 'H':
711  // Hour [00, 23]. [tm_hour]
712  __beg = _M_extract_num(__beg, __end, __tm->tm_hour, 0, 23, 2,
713  __io, __tmperr);
714  break;
715  case 'I':
716  // Hour [01, 12]. [tm_hour]
717  __beg = _M_extract_num(__beg, __end, __tm->tm_hour, 1, 12, 2,
718  __io, __tmperr);
719  break;
720  case 'm':
721  // Month [01, 12]. [tm_mon]
722  __beg = _M_extract_num(__beg, __end, __mem, 1, 12, 2,
723  __io, __tmperr);
724  if (!__tmperr)
725  __tm->tm_mon = __mem - 1;
726  break;
727  case 'M':
728  // Minute [00, 59]. [tm_min]
729  __beg = _M_extract_num(__beg, __end, __tm->tm_min, 0, 59, 2,
730  __io, __tmperr);
731  break;
732  case 'n':
733  if (__ctype.narrow(*__beg, 0) == '\n')
734  ++__beg;
735  else
736  __tmperr |= ios_base::failbit;
737  break;
738  case 'R':
739  // Equivalent to (%H:%M).
740  __cs = "%H:%M";
741  __ctype.widen(__cs, __cs + 6, __wcs);
742  __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
743  __tm, __wcs);
744  break;
745  case 'S':
746  // Seconds. [tm_sec]
747  // [00, 60] in C99 (one leap-second), [00, 61] in C89.
748 #ifdef _GLIBCXX_USE_C99
749  __beg = _M_extract_num(__beg, __end, __tm->tm_sec, 0, 60, 2,
750 #else
751  __beg = _M_extract_num(__beg, __end, __tm->tm_sec, 0, 61, 2,
752 #endif
753  __io, __tmperr);
754  break;
755  case 't':
756  if (__ctype.narrow(*__beg, 0) == '\t')
757  ++__beg;
758  else
759  __tmperr |= ios_base::failbit;
760  break;
761  case 'T':
762  // Equivalent to (%H:%M:%S).
763  __cs = "%H:%M:%S";
764  __ctype.widen(__cs, __cs + 9, __wcs);
765  __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
766  __tm, __wcs);
767  break;
768  case 'x':
769  // Locale's date.
770  const char_type* __dates[2];
771  __tp._M_date_formats(__dates);
772  __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
773  __tm, __dates[0]);
774  break;
775  case 'X':
776  // Locale's time.
777  const char_type* __times[2];
778  __tp._M_time_formats(__times);
779  __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
780  __tm, __times[0]);
781  break;
782  case 'y':
783  case 'C': // C99
784  // Two digit year.
785  case 'Y':
786  // Year [1900).
787  // NB: We parse either two digits, implicitly years since
788  // 1900, or 4 digits, full year. In both cases we can
789  // reconstruct [tm_year]. See also libstdc++/26701.
790  __beg = _M_extract_num(__beg, __end, __mem, 0, 9999, 4,
791  __io, __tmperr);
792  if (!__tmperr)
793  __tm->tm_year = __mem < 0 ? __mem + 100 : __mem - 1900;
794  break;
795  case 'Z':
796  // Timezone info.
797  if (__ctype.is(ctype_base::upper, *__beg))
798  {
799  int __tmp;
800  __beg = _M_extract_name(__beg, __end, __tmp,
801  __timepunct_cache<_CharT>::_S_timezones,
802  14, __io, __tmperr);
803 
804  // GMT requires special effort.
805  if (__beg != __end && !__tmperr && __tmp == 0
806  && (*__beg == __ctype.widen('-')
807  || *__beg == __ctype.widen('+')))
808  {
809  __beg = _M_extract_num(__beg, __end, __tmp, 0, 23, 2,
810  __io, __tmperr);
811  __beg = _M_extract_num(__beg, __end, __tmp, 0, 59, 2,
812  __io, __tmperr);
813  }
814  }
815  else
816  __tmperr |= ios_base::failbit;
817  break;
818  default:
819  // Not recognized.
820  __tmperr |= ios_base::failbit;
821  }
822  }
823  else
824  {
825  // Verify format and input match, extract and discard.
826  if (__format[__i] == *__beg)
827  ++__beg;
828  else
829  __tmperr |= ios_base::failbit;
830  }
831  }
832 
833  if (__tmperr || __i != __len)
834  __err |= ios_base::failbit;
835 
836  return __beg;
837  }
838 
839  template<typename _CharT, typename _InIter>
840  _InIter
841  time_get<_CharT, _InIter>::
842  _M_extract_num(iter_type __beg, iter_type __end, int& __member,
843  int __min, int __max, size_t __len,
844  ios_base& __io, ios_base::iostate& __err) const
845  {
846  const locale& __loc = __io._M_getloc();
847  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
848 
849  // As-is works for __len = 1, 2, 4, the values actually used.
850  int __mult = __len == 2 ? 10 : (__len == 4 ? 1000 : 1);
851 
852  ++__min;
853  size_t __i = 0;
854  int __value = 0;
855  for (; __beg != __end && __i < __len; ++__beg, ++__i)
856  {
857  const char __c = __ctype.narrow(*__beg, '*');
858  if (__c >= '0' && __c <= '9')
859  {
860  __value = __value * 10 + (__c - '0');
861  const int __valuec = __value * __mult;
862  if (__valuec > __max || __valuec + __mult < __min)
863  break;
864  __mult /= 10;
865  }
866  else
867  break;
868  }
869  if (__i == __len)
870  __member = __value;
871  // Special encoding for do_get_year, 'y', and 'Y' above.
872  else if (__len == 4 && __i == 2)
873  __member = __value - 100;
874  else
875  __err |= ios_base::failbit;
876 
877  return __beg;
878  }
879 
880  // Assumptions:
881  // All elements in __names are unique.
882  template<typename _CharT, typename _InIter>
883  _InIter
884  time_get<_CharT, _InIter>::
885  _M_extract_name(iter_type __beg, iter_type __end, int& __member,
886  const _CharT** __names, size_t __indexlen,
887  ios_base& __io, ios_base::iostate& __err) const
888  {
889  typedef char_traits<_CharT> __traits_type;
890  const locale& __loc = __io._M_getloc();
891  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
892 
893  int* __matches = static_cast<int*>(__builtin_alloca(sizeof(int)
894  * __indexlen));
895  size_t __nmatches = 0;
896  size_t __pos = 0;
897  bool __testvalid = true;
898  const char_type* __name;
899 
900  // Look for initial matches.
901  // NB: Some of the locale data is in the form of all lowercase
902  // names, and some is in the form of initially-capitalized
903  // names. Look for both.
904  if (__beg != __end)
905  {
906  const char_type __c = *__beg;
907  for (size_t __i1 = 0; __i1 < __indexlen; ++__i1)
908  if (__c == __names[__i1][0]
909  || __c == __ctype.toupper(__names[__i1][0]))
910  __matches[__nmatches++] = __i1;
911  }
912 
913  while (__nmatches > 1)
914  {
915  // Find smallest matching string.
916  size_t __minlen = __traits_type::length(__names[__matches[0]]);
917  for (size_t __i2 = 1; __i2 < __nmatches; ++__i2)
918  __minlen = std::min(__minlen,
919  __traits_type::length(__names[__matches[__i2]]));
920  ++__beg, ++__pos;
921  if (__pos < __minlen && __beg != __end)
922  for (size_t __i3 = 0; __i3 < __nmatches;)
923  {
924  __name = __names[__matches[__i3]];
925  if (!(__name[__pos] == *__beg))
926  __matches[__i3] = __matches[--__nmatches];
927  else
928  ++__i3;
929  }
930  else
931  break;
932  }
933 
934  if (__nmatches == 1)
935  {
936  // Make sure found name is completely extracted.
937  ++__beg, ++__pos;
938  __name = __names[__matches[0]];
939  const size_t __len = __traits_type::length(__name);
940  while (__pos < __len && __beg != __end && __name[__pos] == *__beg)
941  ++__beg, ++__pos;
942 
943  if (__len == __pos)
944  __member = __matches[0];
945  else
946  __testvalid = false;
947  }
948  else
949  __testvalid = false;
950  if (!__testvalid)
951  __err |= ios_base::failbit;
952 
953  return __beg;
954  }
955 
956  template<typename _CharT, typename _InIter>
957  _InIter
958  time_get<_CharT, _InIter>::
959  _M_extract_wday_or_month(iter_type __beg, iter_type __end, int& __member,
960  const _CharT** __names, size_t __indexlen,
961  ios_base& __io, ios_base::iostate& __err) const
962  {
963  typedef char_traits<_CharT> __traits_type;
964  const locale& __loc = __io._M_getloc();
965  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
966 
967  int* __matches = static_cast<int*>(__builtin_alloca(2 * sizeof(int)
968  * __indexlen));
969  size_t __nmatches = 0;
970  size_t* __matches_lengths = 0;
971  size_t __pos = 0;
972 
973  if (__beg != __end)
974  {
975  const char_type __c = *__beg;
976  for (size_t __i = 0; __i < 2 * __indexlen; ++__i)
977  if (__c == __names[__i][0]
978  || __c == __ctype.toupper(__names[__i][0]))
979  __matches[__nmatches++] = __i;
980  }
981 
982  if (__nmatches)
983  {
984  ++__beg, ++__pos;
985 
986  __matches_lengths
987  = static_cast<size_t*>(__builtin_alloca(sizeof(size_t)
988  * __nmatches));
989  for (size_t __i = 0; __i < __nmatches; ++__i)
990  __matches_lengths[__i]
991  = __traits_type::length(__names[__matches[__i]]);
992  }
993 
994  for (; __beg != __end; ++__beg, ++__pos)
995  {
996  size_t __nskipped = 0;
997  const char_type __c = *__beg;
998  for (size_t __i = 0; __i < __nmatches;)
999  {
1000  const char_type* __name = __names[__matches[__i]];
1001  if (__pos >= __matches_lengths[__i])
1002  ++__nskipped, ++__i;
1003  else if (!(__name[__pos] == __c))
1004  {
1005  --__nmatches;
1006  __matches[__i] = __matches[__nmatches];
1007  __matches_lengths[__i] = __matches_lengths[__nmatches];
1008  }
1009  else
1010  ++__i;
1011  }
1012  if (__nskipped == __nmatches)
1013  break;
1014  }
1015 
1016  if ((__nmatches == 1 && __matches_lengths[0] == __pos)
1017  || (__nmatches == 2 && (__matches_lengths[0] == __pos
1018  || __matches_lengths[1] == __pos)))
1019  __member = (__matches[0] >= __indexlen
1020  ? __matches[0] - __indexlen : __matches[0]);
1021  else
1022  __err |= ios_base::failbit;
1023 
1024  return __beg;
1025  }
1026 
1027  template<typename _CharT, typename _InIter>
1028  _InIter
1031  ios_base::iostate& __err, tm* __tm) const
1032  {
1033  const locale& __loc = __io._M_getloc();
1034  const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc);
1035  const char_type* __times[2];
1036  __tp._M_time_formats(__times);
1037  __beg = _M_extract_via_format(__beg, __end, __io, __err,
1038  __tm, __times[0]);
1039  if (__beg == __end)
1040  __err |= ios_base::eofbit;
1041  return __beg;
1042  }
1043 
1044  template<typename _CharT, typename _InIter>
1045  _InIter
1048  ios_base::iostate& __err, tm* __tm) const
1049  {
1050  const locale& __loc = __io._M_getloc();
1051  const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc);
1052  const char_type* __dates[2];
1053  __tp._M_date_formats(__dates);
1054  __beg = _M_extract_via_format(__beg, __end, __io, __err,
1055  __tm, __dates[0]);
1056  if (__beg == __end)
1057  __err |= ios_base::eofbit;
1058  return __beg;
1059  }
1060 
1061  template<typename _CharT, typename _InIter>
1062  _InIter
1065  ios_base::iostate& __err, tm* __tm) const
1066  {
1067  typedef char_traits<_CharT> __traits_type;
1068  const locale& __loc = __io._M_getloc();
1069  const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc);
1070  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
1071  const char_type* __days[14];
1072  __tp._M_days_abbreviated(__days);
1073  __tp._M_days(__days + 7);
1074  int __tmpwday;
1075  ios_base::iostate __tmperr = ios_base::goodbit;
1076 
1077  __beg = _M_extract_wday_or_month(__beg, __end, __tmpwday, __days, 7,
1078  __io, __tmperr);
1079  if (!__tmperr)
1080  __tm->tm_wday = __tmpwday;
1081  else
1082  __err |= ios_base::failbit;
1083 
1084  if (__beg == __end)
1085  __err |= ios_base::eofbit;
1086  return __beg;
1087  }
1088 
1089  template<typename _CharT, typename _InIter>
1090  _InIter
1093  ios_base& __io, ios_base::iostate& __err, tm* __tm) const
1094  {
1095  typedef char_traits<_CharT> __traits_type;
1096  const locale& __loc = __io._M_getloc();
1097  const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc);
1098  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
1099  const char_type* __months[24];
1100  __tp._M_months_abbreviated(__months);
1101  __tp._M_months(__months + 12);
1102  int __tmpmon;
1103  ios_base::iostate __tmperr = ios_base::goodbit;
1104 
1105  __beg = _M_extract_wday_or_month(__beg, __end, __tmpmon, __months, 12,
1106  __io, __tmperr);
1107  if (!__tmperr)
1108  __tm->tm_mon = __tmpmon;
1109  else
1110  __err |= ios_base::failbit;
1111 
1112  if (__beg == __end)
1113  __err |= ios_base::eofbit;
1114  return __beg;
1115  }
1116 
1117  template<typename _CharT, typename _InIter>
1118  _InIter
1121  ios_base::iostate& __err, tm* __tm) const
1122  {
1123  const locale& __loc = __io._M_getloc();
1124  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
1125  int __tmpyear;
1126  ios_base::iostate __tmperr = ios_base::goodbit;
1127 
1128  __beg = _M_extract_num(__beg, __end, __tmpyear, 0, 9999, 4,
1129  __io, __tmperr);
1130  if (!__tmperr)
1131  __tm->tm_year = __tmpyear < 0 ? __tmpyear + 100 : __tmpyear - 1900;
1132  else
1133  __err |= ios_base::failbit;
1134 
1135  if (__beg == __end)
1136  __err |= ios_base::eofbit;
1137  return __beg;
1138  }
1139 
1140  template<typename _CharT, typename _OutIter>
1141  _OutIter
1143  put(iter_type __s, ios_base& __io, char_type __fill, const tm* __tm,
1144  const _CharT* __beg, const _CharT* __end) const
1145  {
1146  const locale& __loc = __io._M_getloc();
1147  ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
1148  for (; __beg != __end; ++__beg)
1149  if (__ctype.narrow(*__beg, 0) != '%')
1150  {
1151  *__s = *__beg;
1152  ++__s;
1153  }
1154  else if (++__beg != __end)
1155  {
1156  char __format;
1157  char __mod = 0;
1158  const char __c = __ctype.narrow(*__beg, 0);
1159  if (__c != 'E' && __c != 'O')
1160  __format = __c;
1161  else if (++__beg != __end)
1162  {
1163  __mod = __c;
1164  __format = __ctype.narrow(*__beg, 0);
1165  }
1166  else
1167  break;
1168  __s = this->do_put(__s, __io, __fill, __tm, __format, __mod);
1169  }
1170  else
1171  break;
1172  return __s;
1173  }
1174 
1175  template<typename _CharT, typename _OutIter>
1176  _OutIter
1178  do_put(iter_type __s, ios_base& __io, char_type, const tm* __tm,
1179  char __format, char __mod) const
1180  {
1181  const locale& __loc = __io._M_getloc();
1182  ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
1183  __timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc);
1184 
1185  // NB: This size is arbitrary. Should this be a data member,
1186  // initialized at construction?
1187  const size_t __maxlen = 128;
1188  char_type __res[__maxlen];
1189 
1190  // NB: In IEE 1003.1-200x, and perhaps other locale models, it
1191  // is possible that the format character will be longer than one
1192  // character. Possibilities include 'E' or 'O' followed by a
1193  // format character: if __mod is not the default argument, assume
1194  // it's a valid modifier.
1195  char_type __fmt[4];
1196  __fmt[0] = __ctype.widen('%');
1197  if (!__mod)
1198  {
1199  __fmt[1] = __format;
1200  __fmt[2] = char_type();
1201  }
1202  else
1203  {
1204  __fmt[1] = __mod;
1205  __fmt[2] = __format;
1206  __fmt[3] = char_type();
1207  }
1208 
1209  __tp._M_put(__res, __maxlen, __fmt, __tm);
1210 
1211  // Write resulting, fully-formatted string to output iterator.
1212  return std::__write(__s, __res, char_traits<char_type>::length(__res));
1213  }
1214 
1215 
1216  // Inhibit implicit instantiations for required instantiations,
1217  // which are defined via explicit instantiations elsewhere.
1218 #if _GLIBCXX_EXTERN_TEMPLATE
1219  extern template class moneypunct<char, false>;
1220  extern template class moneypunct<char, true>;
1221  extern template class moneypunct_byname<char, false>;
1222  extern template class moneypunct_byname<char, true>;
1223  extern template class _GLIBCXX_NAMESPACE_LDBL money_get<char>;
1224  extern template class _GLIBCXX_NAMESPACE_LDBL money_put<char>;
1225  extern template class __timepunct<char>;
1226  extern template class time_put<char>;
1227  extern template class time_put_byname<char>;
1228  extern template class time_get<char>;
1229  extern template class time_get_byname<char>;
1230  extern template class messages<char>;
1231  extern template class messages_byname<char>;
1232 
1233  extern template
1234  const moneypunct<char, true>&
1235  use_facet<moneypunct<char, true> >(const locale&);
1236 
1237  extern template
1239  use_facet<moneypunct<char, false> >(const locale&);
1240 
1241  extern template
1242  const money_put<char>&
1243  use_facet<money_put<char> >(const locale&);
1244 
1245  extern template
1246  const money_get<char>&
1247  use_facet<money_get<char> >(const locale&);
1248 
1249  extern template
1250  const __timepunct<char>&
1251  use_facet<__timepunct<char> >(const locale&);
1252 
1253  extern template
1254  const time_put<char>&
1255  use_facet<time_put<char> >(const locale&);
1256 
1257  extern template
1258  const time_get<char>&
1259  use_facet<time_get<char> >(const locale&);
1260 
1261  extern template
1262  const messages<char>&
1263  use_facet<messages<char> >(const locale&);
1264 
1265  extern template
1266  bool
1267  has_facet<moneypunct<char> >(const locale&);
1268 
1269  extern template
1270  bool
1271  has_facet<money_put<char> >(const locale&);
1272 
1273  extern template
1274  bool
1275  has_facet<money_get<char> >(const locale&);
1276 
1277  extern template
1278  bool
1279  has_facet<__timepunct<char> >(const locale&);
1280 
1281  extern template
1282  bool
1283  has_facet<time_put<char> >(const locale&);
1284 
1285  extern template
1286  bool
1287  has_facet<time_get<char> >(const locale&);
1288 
1289  extern template
1290  bool
1291  has_facet<messages<char> >(const locale&);
1292 
1293 #ifdef _GLIBCXX_USE_WCHAR_T
1294  extern template class moneypunct<wchar_t, false>;
1295  extern template class moneypunct<wchar_t, true>;
1296  extern template class moneypunct_byname<wchar_t, false>;
1297  extern template class moneypunct_byname<wchar_t, true>;
1298  extern template class _GLIBCXX_NAMESPACE_LDBL money_get<wchar_t>;
1299  extern template class _GLIBCXX_NAMESPACE_LDBL money_put<wchar_t>;
1300  extern template class __timepunct<wchar_t>;
1301  extern template class time_put<wchar_t>;
1302  extern template class time_put_byname<wchar_t>;
1303  extern template class time_get<wchar_t>;
1304  extern template class time_get_byname<wchar_t>;
1305  extern template class messages<wchar_t>;
1306  extern template class messages_byname<wchar_t>;
1307 
1308  extern template
1310  use_facet<moneypunct<wchar_t, true> >(const locale&);
1311 
1312  extern template
1314  use_facet<moneypunct<wchar_t, false> >(const locale&);
1315 
1316  extern template
1317  const money_put<wchar_t>&
1318  use_facet<money_put<wchar_t> >(const locale&);
1319 
1320  extern template
1321  const money_get<wchar_t>&
1322  use_facet<money_get<wchar_t> >(const locale&);
1323 
1324  extern template
1325  const __timepunct<wchar_t>&
1326  use_facet<__timepunct<wchar_t> >(const locale&);
1327 
1328  extern template
1329  const time_put<wchar_t>&
1330  use_facet<time_put<wchar_t> >(const locale&);
1331 
1332  extern template
1333  const time_get<wchar_t>&
1334  use_facet<time_get<wchar_t> >(const locale&);
1335 
1336  extern template
1337  const messages<wchar_t>&
1338  use_facet<messages<wchar_t> >(const locale&);
1339 
1340  extern template
1341  bool
1342  has_facet<moneypunct<wchar_t> >(const locale&);
1343 
1344  extern template
1345  bool
1346  has_facet<money_put<wchar_t> >(const locale&);
1347 
1348  extern template
1349  bool
1350  has_facet<money_get<wchar_t> >(const locale&);
1351 
1352  extern template
1353  bool
1354  has_facet<__timepunct<wchar_t> >(const locale&);
1355 
1356  extern template
1357  bool
1358  has_facet<time_put<wchar_t> >(const locale&);
1359 
1360  extern template
1361  bool
1362  has_facet<time_get<wchar_t> >(const locale&);
1363 
1364  extern template
1365  bool
1366  has_facet<messages<wchar_t> >(const locale&);
1367 #endif
1368 #endif
1369 
1370 _GLIBCXX_END_NAMESPACE_VERSION
1371 } // namespace std
1372 
1373 #endif
The base of the I/O class hierarchy.This class defines everything that can be defined about I/O that ...
Definition: ios_base.h:201
virtual iter_type do_get_monthname(iter_type __beg, iter_type __end, ios_base &, ios_base::iostate &__err, tm *__tm) const
Parse input month string.
Basis for explicit traits specializations.
Definition: char_traits.h:229
static const iostate eofbit
Indicates that an input operation reached the end of an input sequence.
Definition: ios_base.h:339
streamsize width() const
Flags access.
Definition: ios_base.h:646
Primary class template time_put.This facet encapsulates the code to format and output dates and times...
class messages_byname [22.2.7.2].
Primary class template money_put.This facet encapsulates the code to format and output a monetary amo...
virtual dateorder do_date_order() const
Return preferred order of month, day, and year.
static const fmtflags internal
Adds fill characters at a designated internal point in certain generated output, or identical to righ...
Definition: ios_base.h:274
void resize(size_type __n, _CharT __c)
Resizes the string to the specified number of characters.
char narrow(char_type __c, char __dfault) const
Narrow char_type to char.
class time_put_byname [22.2.5.4].
Primary class template ctype facet.This template class defines classification and conversion function...
_InIter iter_type
Public typedefs.
class time_get_byname [22.2.5.2].
const char_type * scan_not(mask __m, const char_type *__lo, const char_type *__hi) const
Find char_type not matching a mask.
virtual iter_type do_get_date(iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, tm *__tm) const
Parse input date string.
virtual iter_type do_get_year(iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, tm *__tm) const
Parse input year string.
static const iostate goodbit
Indicates all is well.
Definition: ios_base.h:347
char_type widen(char __c) const
Widen char to char_type.
const locale & _M_getloc() const
Locale access.
Definition: ios_base.h:708
_CharT char_type
Public typedefs.
virtual iter_type do_put(iter_type __s, ios_base &__io, char_type __fill, const tm *__tm, char __format, char __mod) const
Format and output a time or date.
_CharT char_type
Public typedefs.
_InIter iter_type
Public typedefs.
Container class for localization functionality.The locale class is first a class wrapper for C librar...
_OutIter iter_type
Public typedefs.
Primary class template money_get.This facet encapsulates the code to parse and return a monetary amou...
static const fmtflags left
Adds fill characters on the right (final positions) of certain generated output. (I.e., the thing you print is flush left.)
Definition: ios_base.h:278
class moneypunct_byname [22.2.6.4].
locale getloc() const
Locale access.
Definition: ios_base.h:697
Primary class template time_get.This facet encapsulates the code to parse and return a date or time f...
iter_type put(iter_type __s, ios_base &__io, char_type __fill, const tm *__tm, const _CharT *__beg, const _CharT *__end) const
Format and output a time or date.
_Ios_Iostate iostate
This is a bitmask type.
Definition: ios_base.h:332
_Ios_Fmtflags fmtflags
This is a bitmask type.
Definition: ios_base.h:257
fmtflags flags() const
Access to format flags.
Definition: ios_base.h:553
static const fmtflags adjustfield
A mask of left|right|internal. Useful for the 2-arg form of setf.
Definition: ios_base.h:312
virtual iter_type do_get_weekday(iter_type __beg, iter_type __end, ios_base &, ios_base::iostate &__err, tm *__tm) const
Parse input weekday string.
virtual iter_type do_get(iter_type __s, iter_type __end, bool __intl, ios_base &__io, ios_base::iostate &__err, long double &__units) const
Read and parse a monetary value.
Primary class template messages.This facet encapsulates the code to retrieve messages from message ca...
const _Tp & min(const _Tp &, const _Tp &)
This does what you think it does.
Definition: stl_algobase.h:187
static const size_type npos
Value returned by various member functions when they fail.
Definition: basic_string.h:280
_CharT char_type
Public typedefs.
const _CharT * c_str() const
Return const pointer to null-terminated contents.
static const fmtflags showbase
Generates a prefix indicating the numeric base of generated integer output.
Definition: ios_base.h:292
virtual iter_type do_get_time(iter_type __beg, iter_type __end, ios_base &__io, ios_base::iostate &__err, tm *__tm) const
Parse input time string.
_OutIter iter_type
Public typedefs.
Primary class template moneypunct.This facet encapsulates the punctuation, grouping and other formatt...
static const iostate failbit
Indicates that an input operation failed to read the expected characters, or that an output operation...
Definition: ios_base.h:344
virtual iter_type do_put(iter_type __s, bool __intl, ios_base &__io, char_type __fill, long double __units) const
Format and output a monetary value.