libstdc++
locale_facets_nonio.tcc
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1 // Locale support -*- C++ -*-
2 
3 // Copyright (C) 2007-2021 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10 
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
15 
16 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
19 
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
24 
25 /** @file bits/locale_facets_nonio.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  const moneypunct<_CharT, _Intl>& __mp =
72  use_facet<moneypunct<_CharT, _Intl> >(__loc);
73 
74  _M_decimal_point = __mp.decimal_point();
75  _M_thousands_sep = __mp.thousands_sep();
76  _M_frac_digits = __mp.frac_digits();
77 
78  char* __grouping = 0;
79  _CharT* __curr_symbol = 0;
80  _CharT* __positive_sign = 0;
81  _CharT* __negative_sign = 0;
82  __try
83  {
84  const string& __g = __mp.grouping();
85  _M_grouping_size = __g.size();
86  __grouping = new char[_M_grouping_size];
87  __g.copy(__grouping, _M_grouping_size);
88  _M_use_grouping = (_M_grouping_size
89  && static_cast<signed char>(__grouping[0]) > 0
90  && (__grouping[0]
91  != __gnu_cxx::__numeric_traits<char>::__max));
92 
93  const basic_string<_CharT>& __cs = __mp.curr_symbol();
94  _M_curr_symbol_size = __cs.size();
95  __curr_symbol = new _CharT[_M_curr_symbol_size];
96  __cs.copy(__curr_symbol, _M_curr_symbol_size);
97 
98  const basic_string<_CharT>& __ps = __mp.positive_sign();
99  _M_positive_sign_size = __ps.size();
100  __positive_sign = new _CharT[_M_positive_sign_size];
101  __ps.copy(__positive_sign, _M_positive_sign_size);
102 
103  const basic_string<_CharT>& __ns = __mp.negative_sign();
104  _M_negative_sign_size = __ns.size();
105  __negative_sign = new _CharT[_M_negative_sign_size];
106  __ns.copy(__negative_sign, _M_negative_sign_size);
107 
108  _M_pos_format = __mp.pos_format();
109  _M_neg_format = __mp.neg_format();
110 
111  const ctype<_CharT>& __ct = use_facet<ctype<_CharT> >(__loc);
112  __ct.widen(money_base::_S_atoms,
113  money_base::_S_atoms + money_base::_S_end, _M_atoms);
114 
115  _M_grouping = __grouping;
116  _M_curr_symbol = __curr_symbol;
117  _M_positive_sign = __positive_sign;
118  _M_negative_sign = __negative_sign;
119  _M_allocated = true;
120  }
121  __catch(...)
122  {
123  delete [] __grouping;
124  delete [] __curr_symbol;
125  delete [] __positive_sign;
126  delete [] __negative_sign;
127  __throw_exception_again;
128  }
129  }
130 
131 _GLIBCXX_BEGIN_NAMESPACE_LDBL_OR_CXX11
132 
133  template<typename _CharT, typename _InIter>
134  template<bool _Intl>
135  _InIter
136  money_get<_CharT, _InIter>::
137  _M_extract(iter_type __beg, iter_type __end, ios_base& __io,
138  ios_base::iostate& __err, string& __units) const
139  {
140  typedef char_traits<_CharT> __traits_type;
141  typedef typename string_type::size_type size_type;
142  typedef money_base::part part;
143  typedef __moneypunct_cache<_CharT, _Intl> __cache_type;
144 
145  const locale& __loc = __io._M_getloc();
146  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
147 
148  __use_cache<__cache_type> __uc;
149  const __cache_type* __lc = __uc(__loc);
150  const char_type* __lit = __lc->_M_atoms;
151 
152  // Deduced sign.
153  bool __negative = false;
154  // Sign size.
155  size_type __sign_size = 0;
156  // True if sign is mandatory.
157  const bool __mandatory_sign = (__lc->_M_positive_sign_size
158  && __lc->_M_negative_sign_size);
159  // String of grouping info from thousands_sep plucked from __units.
160  string __grouping_tmp;
161  if (__lc->_M_use_grouping)
162  __grouping_tmp.reserve(32);
163  // Last position before the decimal point.
164  int __last_pos = 0;
165  // Separator positions, then, possibly, fractional digits.
166  int __n = 0;
167  // If input iterator is in a valid state.
168  bool __testvalid = true;
169  // Flag marking when a decimal point is found.
170  bool __testdecfound = false;
171 
172  // The tentative returned string is stored here.
173  string __res;
174  __res.reserve(32);
175 
176  const char_type* __lit_zero = __lit + money_base::_S_zero;
177  const money_base::pattern __p = __lc->_M_neg_format;
178  for (int __i = 0; __i < 4 && __testvalid; ++__i)
179  {
180  const part __which = static_cast<part>(__p.field[__i]);
181  switch (__which)
182  {
183  case money_base::symbol:
184  // According to 22.2.6.1.2, p2, symbol is required
185  // if (__io.flags() & ios_base::showbase), otherwise
186  // is optional and consumed only if other characters
187  // are needed to complete the format.
188  if (__io.flags() & ios_base::showbase || __sign_size > 1
189  || __i == 0
190  || (__i == 1 && (__mandatory_sign
191  || (static_cast<part>(__p.field[0])
192  == money_base::sign)
193  || (static_cast<part>(__p.field[2])
194  == money_base::space)))
195  || (__i == 2 && ((static_cast<part>(__p.field[3])
196  == money_base::value)
197  || (__mandatory_sign
198  && (static_cast<part>(__p.field[3])
199  == money_base::sign)))))
200  {
201  const size_type __len = __lc->_M_curr_symbol_size;
202  size_type __j = 0;
203  for (; __beg != __end && __j < __len
204  && *__beg == __lc->_M_curr_symbol[__j];
205  ++__beg, (void)++__j);
206  if (__j != __len
207  && (__j || __io.flags() & ios_base::showbase))
208  __testvalid = false;
209  }
210  break;
211  case money_base::sign:
212  // Sign might not exist, or be more than one character long.
213  if (__lc->_M_positive_sign_size && __beg != __end
214  && *__beg == __lc->_M_positive_sign[0])
215  {
216  __sign_size = __lc->_M_positive_sign_size;
217  ++__beg;
218  }
219  else if (__lc->_M_negative_sign_size && __beg != __end
220  && *__beg == __lc->_M_negative_sign[0])
221  {
222  __negative = true;
223  __sign_size = __lc->_M_negative_sign_size;
224  ++__beg;
225  }
226  else if (__lc->_M_positive_sign_size
227  && !__lc->_M_negative_sign_size)
228  // "... if no sign is detected, the result is given the sign
229  // that corresponds to the source of the empty string"
230  __negative = true;
231  else if (__mandatory_sign)
232  __testvalid = false;
233  break;
234  case money_base::value:
235  // Extract digits, remove and stash away the
236  // grouping of found thousands separators.
237  for (; __beg != __end; ++__beg)
238  {
239  const char_type __c = *__beg;
240  const char_type* __q = __traits_type::find(__lit_zero,
241  10, __c);
242  if (__q != 0)
243  {
244  __res += money_base::_S_atoms[__q - __lit];
245  ++__n;
246  }
247  else if (__c == __lc->_M_decimal_point
248  && !__testdecfound)
249  {
250  if (__lc->_M_frac_digits <= 0)
251  break;
252 
253  __last_pos = __n;
254  __n = 0;
255  __testdecfound = true;
256  }
257  else if (__lc->_M_use_grouping
258  && __c == __lc->_M_thousands_sep
259  && !__testdecfound)
260  {
261  if (__n)
262  {
263  // Mark position for later analysis.
264  __grouping_tmp += static_cast<char>(__n);
265  __n = 0;
266  }
267  else
268  {
269  __testvalid = false;
270  break;
271  }
272  }
273  else
274  break;
275  }
276  if (__res.empty())
277  __testvalid = false;
278  break;
279  case money_base::space:
280  // At least one space is required.
281  if (__beg != __end && __ctype.is(ctype_base::space, *__beg))
282  ++__beg;
283  else
284  __testvalid = false;
285  // fallthrough
286  case money_base::none:
287  // Only if not at the end of the pattern.
288  if (__i != 3)
289  for (; __beg != __end
290  && __ctype.is(ctype_base::space, *__beg); ++__beg);
291  break;
292  }
293  }
294 
295  // Need to get the rest of the sign characters, if they exist.
296  if (__sign_size > 1 && __testvalid)
297  {
298  const char_type* __sign = __negative ? __lc->_M_negative_sign
299  : __lc->_M_positive_sign;
300  size_type __i = 1;
301  for (; __beg != __end && __i < __sign_size
302  && *__beg == __sign[__i]; ++__beg, (void)++__i);
303 
304  if (__i != __sign_size)
305  __testvalid = false;
306  }
307 
308  if (__testvalid)
309  {
310  // Strip leading zeros.
311  if (__res.size() > 1)
312  {
313  const size_type __first = __res.find_first_not_of('0');
314  const bool __only_zeros = __first == string::npos;
315  if (__first)
316  __res.erase(0, __only_zeros ? __res.size() - 1 : __first);
317  }
318 
319  // 22.2.6.1.2, p4
320  if (__negative && __res[0] != '0')
321  __res.insert(__res.begin(), '-');
322 
323  // Test for grouping fidelity.
324  if (__grouping_tmp.size())
325  {
326  // Add the ending grouping.
327  __grouping_tmp += static_cast<char>(__testdecfound ? __last_pos
328  : __n);
329  if (!std::__verify_grouping(__lc->_M_grouping,
330  __lc->_M_grouping_size,
331  __grouping_tmp))
332  __err |= ios_base::failbit;
333  }
334 
335  // Iff not enough digits were supplied after the decimal-point.
336  if (__testdecfound && __n != __lc->_M_frac_digits)
337  __testvalid = false;
338  }
339 
340  // Iff valid sequence is not recognized.
341  if (!__testvalid)
342  __err |= ios_base::failbit;
343  else
344  __units.swap(__res);
345 
346  // Iff no more characters are available.
347  if (__beg == __end)
348  __err |= ios_base::eofbit;
349  return __beg;
350  }
351 
352 #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ \
353  && (_GLIBCXX_USE_CXX11_ABI == 0 || defined __LONG_DOUBLE_IEEE128__)
354  template<typename _CharT, typename _InIter>
355  _InIter
356  money_get<_CharT, _InIter>::
357  __do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io,
358  ios_base::iostate& __err, double& __units) const
359  {
360  string __str;
361  __beg = __intl ? _M_extract<true>(__beg, __end, __io, __err, __str)
362  : _M_extract<false>(__beg, __end, __io, __err, __str);
363  std::__convert_to_v(__str.c_str(), __units, __err, _S_get_c_locale());
364  return __beg;
365  }
366 #endif
367 
368  template<typename _CharT, typename _InIter>
369  _InIter
370  money_get<_CharT, _InIter>::
371  do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io,
372  ios_base::iostate& __err, long double& __units) const
373  {
374  string __str;
375  __beg = __intl ? _M_extract<true>(__beg, __end, __io, __err, __str)
376  : _M_extract<false>(__beg, __end, __io, __err, __str);
377  std::__convert_to_v(__str.c_str(), __units, __err, _S_get_c_locale());
378  return __beg;
379  }
380 
381  template<typename _CharT, typename _InIter>
382  _InIter
383  money_get<_CharT, _InIter>::
384  do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io,
385  ios_base::iostate& __err, string_type& __digits) const
386  {
387  typedef typename string::size_type size_type;
388 
389  const locale& __loc = __io._M_getloc();
390  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
391 
392  string __str;
393  __beg = __intl ? _M_extract<true>(__beg, __end, __io, __err, __str)
394  : _M_extract<false>(__beg, __end, __io, __err, __str);
395  const size_type __len = __str.size();
396  if (__len)
397  {
398  __digits.resize(__len);
399  __ctype.widen(__str.data(), __str.data() + __len, &__digits[0]);
400  }
401  return __beg;
402  }
403 
404 #if defined _GLIBCXX_LONG_DOUBLE_ALT128_COMPAT \
405  && defined __LONG_DOUBLE_IEEE128__
406  template<typename _CharT, typename _InIter>
407  _InIter
408  money_get<_CharT, _InIter>::
409  __do_get(iter_type __beg, iter_type __end, bool __intl, ios_base& __io,
410  ios_base::iostate& __err, __ibm128& __units) const
411  {
412  string __str;
413  __beg = __intl ? _M_extract<true>(__beg, __end, __io, __err, __str)
414  : _M_extract<false>(__beg, __end, __io, __err, __str);
415  std::__convert_to_v(__str.c_str(), __units, __err, _S_get_c_locale());
416  return __beg;
417  }
418 #endif
419 
420  template<typename _CharT, typename _OutIter>
421  template<bool _Intl>
422  _OutIter
423  money_put<_CharT, _OutIter>::
424  _M_insert(iter_type __s, ios_base& __io, char_type __fill,
425  const string_type& __digits) const
426  {
427  typedef typename string_type::size_type size_type;
428  typedef money_base::part part;
429  typedef __moneypunct_cache<_CharT, _Intl> __cache_type;
430 
431  const locale& __loc = __io._M_getloc();
432  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
433 
434  __use_cache<__cache_type> __uc;
435  const __cache_type* __lc = __uc(__loc);
436  const char_type* __lit = __lc->_M_atoms;
437 
438  // Determine if negative or positive formats are to be used, and
439  // discard leading negative_sign if it is present.
440  const char_type* __beg = __digits.data();
441 
442  money_base::pattern __p;
443  const char_type* __sign;
444  size_type __sign_size;
445  if (!(*__beg == __lit[money_base::_S_minus]))
446  {
447  __p = __lc->_M_pos_format;
448  __sign = __lc->_M_positive_sign;
449  __sign_size = __lc->_M_positive_sign_size;
450  }
451  else
452  {
453  __p = __lc->_M_neg_format;
454  __sign = __lc->_M_negative_sign;
455  __sign_size = __lc->_M_negative_sign_size;
456  if (__digits.size())
457  ++__beg;
458  }
459 
460  // Look for valid numbers in the ctype facet within input digits.
461  size_type __len = __ctype.scan_not(ctype_base::digit, __beg,
462  __beg + __digits.size()) - __beg;
463  if (__len)
464  {
465  // Assume valid input, and attempt to format.
466  // Break down input numbers into base components, as follows:
467  // final_value = grouped units + (decimal point) + (digits)
468  string_type __value;
469  __value.reserve(2 * __len);
470 
471  // Add thousands separators to non-decimal digits, per
472  // grouping rules.
473  long __paddec = __len - __lc->_M_frac_digits;
474  if (__paddec > 0)
475  {
476  if (__lc->_M_frac_digits < 0)
477  __paddec = __len;
478  if (__lc->_M_grouping_size)
479  {
480  __value.assign(2 * __paddec, char_type());
481  _CharT* __vend =
482  std::__add_grouping(&__value[0], __lc->_M_thousands_sep,
483  __lc->_M_grouping,
484  __lc->_M_grouping_size,
485  __beg, __beg + __paddec);
486  __value.erase(__vend - &__value[0]);
487  }
488  else
489  __value.assign(__beg, __paddec);
490  }
491 
492  // Deal with decimal point, decimal digits.
493  if (__lc->_M_frac_digits > 0)
494  {
495  __value += __lc->_M_decimal_point;
496  if (__paddec >= 0)
497  __value.append(__beg + __paddec, __lc->_M_frac_digits);
498  else
499  {
500  // Have to pad zeros in the decimal position.
501  __value.append(-__paddec, __lit[money_base::_S_zero]);
502  __value.append(__beg, __len);
503  }
504  }
505 
506  // Calculate length of resulting string.
507  const ios_base::fmtflags __f = __io.flags()
508  & ios_base::adjustfield;
509  __len = __value.size() + __sign_size;
510  __len += ((__io.flags() & ios_base::showbase)
511  ? __lc->_M_curr_symbol_size : 0);
512 
513  string_type __res;
514  __res.reserve(2 * __len);
515 
516  const size_type __width = static_cast<size_type>(__io.width());
517  const bool __testipad = (__f == ios_base::internal
518  && __len < __width);
519  // Fit formatted digits into the required pattern.
520  for (int __i = 0; __i < 4; ++__i)
521  {
522  const part __which = static_cast<part>(__p.field[__i]);
523  switch (__which)
524  {
525  case money_base::symbol:
526  if (__io.flags() & ios_base::showbase)
527  __res.append(__lc->_M_curr_symbol,
528  __lc->_M_curr_symbol_size);
529  break;
530  case money_base::sign:
531  // Sign might not exist, or be more than one
532  // character long. In that case, add in the rest
533  // below.
534  if (__sign_size)
535  __res += __sign[0];
536  break;
537  case money_base::value:
538  __res += __value;
539  break;
540  case money_base::space:
541  // At least one space is required, but if internal
542  // formatting is required, an arbitrary number of
543  // fill spaces will be necessary.
544  if (__testipad)
545  __res.append(__width - __len, __fill);
546  else
547  __res += __fill;
548  break;
549  case money_base::none:
550  if (__testipad)
551  __res.append(__width - __len, __fill);
552  break;
553  }
554  }
555 
556  // Special case of multi-part sign parts.
557  if (__sign_size > 1)
558  __res.append(__sign + 1, __sign_size - 1);
559 
560  // Pad, if still necessary.
561  __len = __res.size();
562  if (__width > __len)
563  {
564  if (__f == ios_base::left)
565  // After.
566  __res.append(__width - __len, __fill);
567  else
568  // Before.
569  __res.insert(0, __width - __len, __fill);
570  __len = __width;
571  }
572 
573  // Write resulting, fully-formatted string to output iterator.
574  __s = std::__write(__s, __res.data(), __len);
575  }
576  __io.width(0);
577  return __s;
578  }
579 
580 #if defined _GLIBCXX_LONG_DOUBLE_COMPAT && defined __LONG_DOUBLE_128__ \
581  && (_GLIBCXX_USE_CXX11_ABI == 0 || defined __LONG_DOUBLE_IEEE128__)
582  template<typename _CharT, typename _OutIter>
583  _OutIter
584  money_put<_CharT, _OutIter>::
585  __do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill,
586  double __units) const
587  { return this->do_put(__s, __intl, __io, __fill, (long double) __units); }
588 #endif
589 
590  template<typename _CharT, typename _OutIter>
591  _OutIter
592  money_put<_CharT, _OutIter>::
593  do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill,
594  long double __units) const
595  {
596  const locale __loc = __io.getloc();
597  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
598 #if _GLIBCXX_USE_C99_STDIO
599  // First try a buffer perhaps big enough.
600  int __cs_size = 64;
601  char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
602  // _GLIBCXX_RESOLVE_LIB_DEFECTS
603  // 328. Bad sprintf format modifier in money_put<>::do_put()
604  int __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size,
605  "%.*Lf", 0, __units);
606  // If the buffer was not large enough, try again with the correct size.
607  if (__len >= __cs_size)
608  {
609  __cs_size = __len + 1;
610  __cs = static_cast<char*>(__builtin_alloca(__cs_size));
611  __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size,
612  "%.*Lf", 0, __units);
613  }
614 #else
615  // max_exponent10 + 1 for the integer part, + 2 for sign and '\0'.
616  const int __cs_size =
617  __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 3;
618  char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
619  int __len = std::__convert_from_v(_S_get_c_locale(), __cs, 0, "%.*Lf",
620  0, __units);
621 #endif
622  string_type __digits(__len, char_type());
623  __ctype.widen(__cs, __cs + __len, &__digits[0]);
624  return __intl ? _M_insert<true>(__s, __io, __fill, __digits)
625  : _M_insert<false>(__s, __io, __fill, __digits);
626  }
627 
628  template<typename _CharT, typename _OutIter>
629  _OutIter
630  money_put<_CharT, _OutIter>::
631  do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill,
632  const string_type& __digits) const
633  { return __intl ? _M_insert<true>(__s, __io, __fill, __digits)
634  : _M_insert<false>(__s, __io, __fill, __digits); }
635 
636 #if defined _GLIBCXX_LONG_DOUBLE_ALT128_COMPAT \
637  && defined __LONG_DOUBLE_IEEE128__
638  template<typename _CharT, typename _OutIter>
639  _OutIter
640  money_put<_CharT, _OutIter>::
641  __do_put(iter_type __s, bool __intl, ios_base& __io, char_type __fill,
642  __ibm128 __units) const
643  {
644  const locale __loc = __io.getloc();
645  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
646 #if _GLIBCXX_USE_C99_STDIO
647  // First try a buffer perhaps big enough.
648  int __cs_size = 64;
649  char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
650  // _GLIBCXX_RESOLVE_LIB_DEFECTS
651  // 328. Bad sprintf format modifier in money_put<>::do_put()
652  int __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size,
653  "%.*Lf", 0, __units);
654  // If the buffer was not large enough, try again with the correct size.
655  if (__len >= __cs_size)
656  {
657  __cs_size = __len + 1;
658  __cs = static_cast<char*>(__builtin_alloca(__cs_size));
659  __len = std::__convert_from_v(_S_get_c_locale(), __cs, __cs_size,
660  "%.*Lf", 0, __units);
661  }
662 #else
663  // max_exponent10 + 1 for the integer part, + 2 for sign and '\0'.
664  const int __cs_size =
665  __gnu_cxx::__numeric_traits<long double>::__max_exponent10 + 3;
666  char* __cs = static_cast<char*>(__builtin_alloca(__cs_size));
667  int __len = std::__convert_from_v(_S_get_c_locale(), __cs, 0, "%.*Lf",
668  0, __units);
669 #endif
670  string_type __digits(__len, char_type());
671  __ctype.widen(__cs, __cs + __len, &__digits[0]);
672  return __intl ? _M_insert<true>(__s, __io, __fill, __digits)
673  : _M_insert<false>(__s, __io, __fill, __digits);
674  }
675 #endif
676 
677 _GLIBCXX_END_NAMESPACE_LDBL_OR_CXX11
678 
679  // NB: Not especially useful. Without an ios_base object or some
680  // kind of locale reference, we are left clawing at the air where
681  // the side of the mountain used to be...
682  template<typename _CharT, typename _InIter>
683  time_base::dateorder
684  time_get<_CharT, _InIter>::do_date_order() const
685  { return time_base::no_order; }
686 
687  // Expand a strftime format string and parse it. E.g., do_get_date() may
688  // pass %m/%d/%Y => extracted characters.
689  template<typename _CharT, typename _InIter>
690  _InIter
691  time_get<_CharT, _InIter>::
692  _M_extract_via_format(iter_type __beg, iter_type __end, ios_base& __io,
693  ios_base::iostate& __err, tm* __tm,
694  const _CharT* __format) const
695  {
696  const locale& __loc = __io._M_getloc();
697  const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc);
698  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
699  const size_t __len = char_traits<_CharT>::length(__format);
700 
701  ios_base::iostate __tmperr = ios_base::goodbit;
702  size_t __i = 0;
703  for (; __beg != __end && __i < __len && !__tmperr; ++__i)
704  {
705  if (__ctype.narrow(__format[__i], 0) == '%')
706  {
707  // Verify valid formatting code, attempt to extract.
708  char __c = __ctype.narrow(__format[++__i], 0);
709  int __mem = 0;
710  if (__c == 'E' || __c == 'O')
711  __c = __ctype.narrow(__format[++__i], 0);
712  switch (__c)
713  {
714  const char* __cs;
715  _CharT __wcs[10];
716  case 'a':
717  // Abbreviated weekday name [tm_wday]
718  const char_type* __days1[7];
719  __tp._M_days_abbreviated(__days1);
720  __beg = _M_extract_name(__beg, __end, __mem, __days1,
721  7, __io, __tmperr);
722  if (!__tmperr)
723  __tm->tm_wday = __mem;
724  break;
725  case 'A':
726  // Weekday name [tm_wday].
727  const char_type* __days2[7];
728  __tp._M_days(__days2);
729  __beg = _M_extract_name(__beg, __end, __mem, __days2,
730  7, __io, __tmperr);
731  if (!__tmperr)
732  __tm->tm_wday = __mem;
733  break;
734  case 'h':
735  case 'b':
736  // Abbreviated month name [tm_mon]
737  const char_type* __months1[12];
738  __tp._M_months_abbreviated(__months1);
739  __beg = _M_extract_name(__beg, __end, __mem,
740  __months1, 12, __io, __tmperr);
741  if (!__tmperr)
742  __tm->tm_mon = __mem;
743  break;
744  case 'B':
745  // Month name [tm_mon].
746  const char_type* __months2[12];
747  __tp._M_months(__months2);
748  __beg = _M_extract_name(__beg, __end, __mem,
749  __months2, 12, __io, __tmperr);
750  if (!__tmperr)
751  __tm->tm_mon = __mem;
752  break;
753  case 'c':
754  // Default time and date representation.
755  const char_type* __dt[2];
756  __tp._M_date_time_formats(__dt);
757  __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
758  __tm, __dt[0]);
759  break;
760  case 'd':
761  // Day [01, 31]. [tm_mday]
762  __beg = _M_extract_num(__beg, __end, __mem, 1, 31, 2,
763  __io, __tmperr);
764  if (!__tmperr)
765  __tm->tm_mday = __mem;
766  break;
767  case 'e':
768  // Day [1, 31], with single digits preceded by
769  // space. [tm_mday]
770  if (__ctype.is(ctype_base::space, *__beg))
771  __beg = _M_extract_num(++__beg, __end, __mem, 1, 9,
772  1, __io, __tmperr);
773  else
774  __beg = _M_extract_num(__beg, __end, __mem, 10, 31,
775  2, __io, __tmperr);
776  if (!__tmperr)
777  __tm->tm_mday = __mem;
778  break;
779  case 'D':
780  // Equivalent to %m/%d/%y.[tm_mon, tm_mday, tm_year]
781  __cs = "%m/%d/%y";
782  __ctype.widen(__cs, __cs + 9, __wcs);
783  __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
784  __tm, __wcs);
785  break;
786  case 'H':
787  // Hour [00, 23]. [tm_hour]
788  __beg = _M_extract_num(__beg, __end, __mem, 0, 23, 2,
789  __io, __tmperr);
790  if (!__tmperr)
791  __tm->tm_hour = __mem;
792  break;
793  case 'I':
794  // Hour [01, 12]. [tm_hour]
795  __beg = _M_extract_num(__beg, __end, __mem, 1, 12, 2,
796  __io, __tmperr);
797  if (!__tmperr)
798  __tm->tm_hour = __mem;
799  break;
800  case 'm':
801  // Month [01, 12]. [tm_mon]
802  __beg = _M_extract_num(__beg, __end, __mem, 1, 12, 2,
803  __io, __tmperr);
804  if (!__tmperr)
805  __tm->tm_mon = __mem - 1;
806  break;
807  case 'M':
808  // Minute [00, 59]. [tm_min]
809  __beg = _M_extract_num(__beg, __end, __mem, 0, 59, 2,
810  __io, __tmperr);
811  if (!__tmperr)
812  __tm->tm_min = __mem;
813  break;
814  case 'n':
815  if (__ctype.narrow(*__beg, 0) == '\n')
816  ++__beg;
817  else
818  __tmperr |= ios_base::failbit;
819  break;
820  case 'R':
821  // Equivalent to (%H:%M).
822  __cs = "%H:%M";
823  __ctype.widen(__cs, __cs + 6, __wcs);
824  __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
825  __tm, __wcs);
826  break;
827  case 'S':
828  // Seconds. [tm_sec]
829  // [00, 60] in C99 (one leap-second), [00, 61] in C89.
830 #if _GLIBCXX_USE_C99
831  __beg = _M_extract_num(__beg, __end, __mem, 0, 60, 2,
832 #else
833  __beg = _M_extract_num(__beg, __end, __mem, 0, 61, 2,
834 #endif
835  __io, __tmperr);
836  if (!__tmperr)
837  __tm->tm_sec = __mem;
838  break;
839  case 't':
840  if (__ctype.narrow(*__beg, 0) == '\t')
841  ++__beg;
842  else
843  __tmperr |= ios_base::failbit;
844  break;
845  case 'T':
846  // Equivalent to (%H:%M:%S).
847  __cs = "%H:%M:%S";
848  __ctype.widen(__cs, __cs + 9, __wcs);
849  __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
850  __tm, __wcs);
851  break;
852  case 'x':
853  // Locale's date.
854  const char_type* __dates[2];
855  __tp._M_date_formats(__dates);
856  __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
857  __tm, __dates[0]);
858  break;
859  case 'X':
860  // Locale's time.
861  const char_type* __times[2];
862  __tp._M_time_formats(__times);
863  __beg = _M_extract_via_format(__beg, __end, __io, __tmperr,
864  __tm, __times[0]);
865  break;
866  case 'y':
867  case 'C': // C99
868  // Two digit year.
869  case 'Y':
870  // Year [1900).
871  // NB: We parse either two digits, implicitly years since
872  // 1900, or 4 digits, full year. In both cases we can
873  // reconstruct [tm_year]. See also libstdc++/26701.
874  __beg = _M_extract_num(__beg, __end, __mem, 0, 9999, 4,
875  __io, __tmperr);
876  if (!__tmperr)
877  __tm->tm_year = __mem < 0 ? __mem + 100 : __mem - 1900;
878  break;
879  case 'Z':
880  // Timezone info.
881  if (__ctype.is(ctype_base::upper, *__beg))
882  {
883  int __tmp;
884  __beg = _M_extract_name(__beg, __end, __tmp,
885  __timepunct_cache<_CharT>::_S_timezones,
886  14, __io, __tmperr);
887 
888  // GMT requires special effort.
889  if (__beg != __end && !__tmperr && __tmp == 0
890  && (*__beg == __ctype.widen('-')
891  || *__beg == __ctype.widen('+')))
892  {
893  __beg = _M_extract_num(__beg, __end, __tmp, 0, 23, 2,
894  __io, __tmperr);
895  __beg = _M_extract_num(__beg, __end, __tmp, 0, 59, 2,
896  __io, __tmperr);
897  }
898  }
899  else
900  __tmperr |= ios_base::failbit;
901  break;
902  default:
903  // Not recognized.
904  __tmperr |= ios_base::failbit;
905  }
906  }
907  else
908  {
909  // Verify format and input match, extract and discard.
910  if (__format[__i] == *__beg)
911  ++__beg;
912  else
913  __tmperr |= ios_base::failbit;
914  }
915  }
916 
917  if (__tmperr || __i != __len)
918  __err |= ios_base::failbit;
919 
920  return __beg;
921  }
922 
923  template<typename _CharT, typename _InIter>
924  _InIter
925  time_get<_CharT, _InIter>::
926  _M_extract_num(iter_type __beg, iter_type __end, int& __member,
927  int __min, int __max, size_t __len,
928  ios_base& __io, ios_base::iostate& __err) const
929  {
930  const locale& __loc = __io._M_getloc();
931  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
932 
933  // As-is works for __len = 1, 2, 4, the values actually used.
934  int __mult = __len == 2 ? 10 : (__len == 4 ? 1000 : 1);
935 
936  ++__min;
937  size_t __i = 0;
938  int __value = 0;
939  for (; __beg != __end && __i < __len; ++__beg, (void)++__i)
940  {
941  const char __c = __ctype.narrow(*__beg, '*');
942  if (__c >= '0' && __c <= '9')
943  {
944  __value = __value * 10 + (__c - '0');
945  const int __valuec = __value * __mult;
946  if (__valuec > __max || __valuec + __mult < __min)
947  break;
948  __mult /= 10;
949  }
950  else
951  break;
952  }
953  if (__i == __len)
954  __member = __value;
955  // Special encoding for do_get_year, 'y', and 'Y' above.
956  else if (__len == 4 && __i == 2)
957  __member = __value - 100;
958  else
959  __err |= ios_base::failbit;
960 
961  return __beg;
962  }
963 
964  // Assumptions:
965  // All elements in __names are unique.
966  template<typename _CharT, typename _InIter>
967  _InIter
968  time_get<_CharT, _InIter>::
969  _M_extract_name(iter_type __beg, iter_type __end, int& __member,
970  const _CharT** __names, size_t __indexlen,
971  ios_base& __io, ios_base::iostate& __err) const
972  {
973  typedef char_traits<_CharT> __traits_type;
974  const locale& __loc = __io._M_getloc();
975  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
976 
977  int* __matches = static_cast<int*>(__builtin_alloca(sizeof(int)
978  * __indexlen));
979  size_t __nmatches = 0;
980  size_t __pos = 0;
981  bool __testvalid = true;
982  const char_type* __name;
983 
984  // Look for initial matches.
985  // NB: Some of the locale data is in the form of all lowercase
986  // names, and some is in the form of initially-capitalized
987  // names. Look for both.
988  if (__beg != __end)
989  {
990  const char_type __c = *__beg;
991  for (size_t __i1 = 0; __i1 < __indexlen; ++__i1)
992  if (__c == __names[__i1][0]
993  || __c == __ctype.toupper(__names[__i1][0]))
994  __matches[__nmatches++] = __i1;
995  }
996 
997  while (__nmatches > 1)
998  {
999  // Find smallest matching string.
1000  size_t __minlen = __traits_type::length(__names[__matches[0]]);
1001  for (size_t __i2 = 1; __i2 < __nmatches; ++__i2)
1002  __minlen = std::min(__minlen,
1003  __traits_type::length(__names[__matches[__i2]]));
1004  ++__beg;
1005  ++__pos;
1006  if (__pos < __minlen && __beg != __end)
1007  for (size_t __i3 = 0; __i3 < __nmatches;)
1008  {
1009  __name = __names[__matches[__i3]];
1010  if (!(__name[__pos] == *__beg))
1011  __matches[__i3] = __matches[--__nmatches];
1012  else
1013  ++__i3;
1014  }
1015  else
1016  break;
1017  }
1018 
1019  if (__nmatches == 1)
1020  {
1021  // Make sure found name is completely extracted.
1022  ++__beg;
1023  ++__pos;
1024  __name = __names[__matches[0]];
1025  const size_t __len = __traits_type::length(__name);
1026  while (__pos < __len && __beg != __end && __name[__pos] == *__beg)
1027  ++__beg, (void)++__pos;
1028 
1029  if (__len == __pos)
1030  __member = __matches[0];
1031  else
1032  __testvalid = false;
1033  }
1034  else
1035  __testvalid = false;
1036  if (!__testvalid)
1037  __err |= ios_base::failbit;
1038 
1039  return __beg;
1040  }
1041 
1042  template<typename _CharT, typename _InIter>
1043  _InIter
1044  time_get<_CharT, _InIter>::
1045  _M_extract_wday_or_month(iter_type __beg, iter_type __end, int& __member,
1046  const _CharT** __names, size_t __indexlen,
1047  ios_base& __io, ios_base::iostate& __err) const
1048  {
1049  typedef char_traits<_CharT> __traits_type;
1050  const locale& __loc = __io._M_getloc();
1051  const ctype<_CharT>& __ctype = use_facet<ctype<_CharT> >(__loc);
1052 
1053  int* __matches = static_cast<int*>(__builtin_alloca(2 * sizeof(int)
1054  * __indexlen));
1055  size_t __nmatches = 0;
1056  size_t* __matches_lengths = 0;
1057  size_t __pos = 0;
1058 
1059  if (__beg != __end)
1060  {
1061  const char_type __c = *__beg;
1062  for (size_t __i = 0; __i < 2 * __indexlen; ++__i)
1063  if (__c == __names[__i][0]
1064  || __c == __ctype.toupper(__names[__i][0]))
1065  __matches[__nmatches++] = __i;
1066  }
1067 
1068  if (__nmatches)
1069  {
1070  ++__beg;
1071  ++__pos;
1072 
1073  __matches_lengths
1074  = static_cast<size_t*>(__builtin_alloca(sizeof(size_t)
1075  * __nmatches));
1076  for (size_t __i = 0; __i < __nmatches; ++__i)
1077  __matches_lengths[__i]
1078  = __traits_type::length(__names[__matches[__i]]);
1079  }
1080 
1081  for (; __beg != __end; ++__beg, (void)++__pos)
1082  {
1083  size_t __nskipped = 0;
1084  const char_type __c = *__beg;
1085  for (size_t __i = 0; __i < __nmatches;)
1086  {
1087  const char_type* __name = __names[__matches[__i]];
1088  if (__pos >= __matches_lengths[__i])
1089  ++__nskipped, ++__i;
1090  else if (!(__name[__pos] == __c))
1091  {
1092  --__nmatches;
1093  __matches[__i] = __matches[__nmatches];
1094  __matches_lengths[__i] = __matches_lengths[__nmatches];
1095  }
1096  else
1097  ++__i;
1098  }
1099  if (__nskipped == __nmatches)
1100  break;
1101  }
1102 
1103  if ((__nmatches == 1 && __matches_lengths[0] == __pos)
1104  || (__nmatches == 2 && (__matches_lengths[0] == __pos
1105  || __matches_lengths[1] == __pos)))
1106  __member = (__matches[0] >= (int)__indexlen
1107  ? __matches[0] - (int)__indexlen : __matches[0]);
1108  else
1109  __err |= ios_base::failbit;
1110 
1111  return __beg;
1112  }
1113 
1114  template<typename _CharT, typename _InIter>
1115  _InIter
1116  time_get<_CharT, _InIter>::
1117  do_get_time(iter_type __beg, iter_type __end, ios_base& __io,
1118  ios_base::iostate& __err, tm* __tm) const
1119  {
1120  const locale& __loc = __io._M_getloc();
1121  const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc);
1122  const char_type* __times[2];
1123  __tp._M_time_formats(__times);
1124  __beg = _M_extract_via_format(__beg, __end, __io, __err,
1125  __tm, __times[0]);
1126  if (__beg == __end)
1127  __err |= ios_base::eofbit;
1128  return __beg;
1129  }
1130 
1131  template<typename _CharT, typename _InIter>
1132  _InIter
1133  time_get<_CharT, _InIter>::
1134  do_get_date(iter_type __beg, iter_type __end, ios_base& __io,
1135  ios_base::iostate& __err, tm* __tm) const
1136  {
1137  const locale& __loc = __io._M_getloc();
1138  const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc);
1139  const char_type* __dates[2];
1140  __tp._M_date_formats(__dates);
1141  __beg = _M_extract_via_format(__beg, __end, __io, __err,
1142  __tm, __dates[0]);
1143  if (__beg == __end)
1144  __err |= ios_base::eofbit;
1145  return __beg;
1146  }
1147 
1148  template<typename _CharT, typename _InIter>
1149  _InIter
1150  time_get<_CharT, _InIter>::
1151  do_get_weekday(iter_type __beg, iter_type __end, ios_base& __io,
1152  ios_base::iostate& __err, tm* __tm) const
1153  {
1154  const locale& __loc = __io._M_getloc();
1155  const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc);
1156  const char_type* __days[14];
1157  __tp._M_days_abbreviated(__days);
1158  __tp._M_days(__days + 7);
1159  int __tmpwday;
1160  ios_base::iostate __tmperr = ios_base::goodbit;
1161 
1162  __beg = _M_extract_wday_or_month(__beg, __end, __tmpwday, __days, 7,
1163  __io, __tmperr);
1164  if (!__tmperr)
1165  __tm->tm_wday = __tmpwday;
1166  else
1167  __err |= ios_base::failbit;
1168 
1169  if (__beg == __end)
1170  __err |= ios_base::eofbit;
1171  return __beg;
1172  }
1173 
1174  template<typename _CharT, typename _InIter>
1175  _InIter
1176  time_get<_CharT, _InIter>::
1177  do_get_monthname(iter_type __beg, iter_type __end,
1178  ios_base& __io, ios_base::iostate& __err, tm* __tm) const
1179  {
1180  const locale& __loc = __io._M_getloc();
1181  const __timepunct<_CharT>& __tp = use_facet<__timepunct<_CharT> >(__loc);
1182  const char_type* __months[24];
1183  __tp._M_months_abbreviated(__months);
1184  __tp._M_months(__months + 12);
1185  int __tmpmon;
1186  ios_base::iostate __tmperr = ios_base::goodbit;
1187 
1188  __beg = _M_extract_wday_or_month(__beg, __end, __tmpmon, __months, 12,
1189  __io, __tmperr);
1190  if (!__tmperr)
1191  __tm->tm_mon = __tmpmon;
1192  else
1193  __err |= ios_base::failbit;
1194 
1195  if (__beg == __end)
1196  __err |= ios_base::eofbit;
1197  return __beg;
1198  }
1199 
1200  template<typename _CharT, typename _InIter>
1201  _InIter
1202  time_get<_CharT, _InIter>::
1203  do_get_year(iter_type __beg, iter_type __end, ios_base& __io,
1204  ios_base::iostate& __err, tm* __tm) const
1205  {
1206  int __tmpyear;
1207  ios_base::iostate __tmperr = ios_base::goodbit;
1208 
1209  __beg = _M_extract_num(__beg, __end, __tmpyear, 0, 9999, 4,
1210  __io, __tmperr);
1211  if (!__tmperr)
1212  __tm->tm_year = __tmpyear < 0 ? __tmpyear + 100 : __tmpyear - 1900;
1213  else
1214  __err |= ios_base::failbit;
1215 
1216  if (__beg == __end)
1217  __err |= ios_base::eofbit;
1218  return __beg;
1219  }
1220 
1221 #if __cplusplus >= 201103L
1222  template<typename _CharT, typename _InIter>
1223  inline
1224  _InIter
1225  time_get<_CharT, _InIter>::
1226  get(iter_type __s, iter_type __end, ios_base& __io,
1227  ios_base::iostate& __err, tm* __tm, const char_type* __fmt,
1228  const char_type* __fmtend) const
1229  {
1230  const locale& __loc = __io._M_getloc();
1231  ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
1232  __err = ios_base::goodbit;
1233  while (__fmt != __fmtend &&
1234  __err == ios_base::goodbit)
1235  {
1236  if (__s == __end)
1237  {
1238  __err = ios_base::eofbit | ios_base::failbit;
1239  break;
1240  }
1241  else if (__ctype.narrow(*__fmt, 0) == '%')
1242  {
1243  char __format;
1244  char __mod = 0;
1245  if (++__fmt == __fmtend)
1246  {
1247  __err = ios_base::failbit;
1248  break;
1249  }
1250  const char __c = __ctype.narrow(*__fmt, 0);
1251  if (__c != 'E' && __c != 'O')
1252  __format = __c;
1253  else if (++__fmt != __fmtend)
1254  {
1255  __mod = __c;
1256  __format = __ctype.narrow(*__fmt, 0);
1257  }
1258  else
1259  {
1260  __err = ios_base::failbit;
1261  break;
1262  }
1263  __s = this->do_get(__s, __end, __io, __err, __tm, __format,
1264  __mod);
1265  ++__fmt;
1266  }
1267  else if (__ctype.is(ctype_base::space, *__fmt))
1268  {
1269  ++__fmt;
1270  while (__fmt != __fmtend &&
1271  __ctype.is(ctype_base::space, *__fmt))
1272  ++__fmt;
1273 
1274  while (__s != __end &&
1275  __ctype.is(ctype_base::space, *__s))
1276  ++__s;
1277  }
1278  // TODO real case-insensitive comparison
1279  else if (__ctype.tolower(*__s) == __ctype.tolower(*__fmt) ||
1280  __ctype.toupper(*__s) == __ctype.toupper(*__fmt))
1281  {
1282  ++__s;
1283  ++__fmt;
1284  }
1285  else
1286  {
1287  __err = ios_base::failbit;
1288  break;
1289  }
1290  }
1291  return __s;
1292  }
1293 
1294  template<typename _CharT, typename _InIter>
1295  inline
1296  _InIter
1297  time_get<_CharT, _InIter>::
1298  do_get(iter_type __beg, iter_type __end, ios_base& __io,
1299  ios_base::iostate& __err, tm* __tm,
1300  char __format, char __mod) const
1301  {
1302  const locale& __loc = __io._M_getloc();
1303  ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
1304  __err = ios_base::goodbit;
1305 
1306  char_type __fmt[4];
1307  __fmt[0] = __ctype.widen('%');
1308  if (!__mod)
1309  {
1310  __fmt[1] = __format;
1311  __fmt[2] = char_type();
1312  }
1313  else
1314  {
1315  __fmt[1] = __mod;
1316  __fmt[2] = __format;
1317  __fmt[3] = char_type();
1318  }
1319 
1320  __beg = _M_extract_via_format(__beg, __end, __io, __err, __tm, __fmt);
1321  if (__beg == __end)
1322  __err |= ios_base::eofbit;
1323  return __beg;
1324  }
1325 
1326 #endif // __cplusplus >= 201103L
1327 
1328  template<typename _CharT, typename _OutIter>
1329  _OutIter
1330  time_put<_CharT, _OutIter>::
1331  put(iter_type __s, ios_base& __io, char_type __fill, const tm* __tm,
1332  const _CharT* __beg, const _CharT* __end) const
1333  {
1334  const locale& __loc = __io._M_getloc();
1335  ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
1336  for (; __beg != __end; ++__beg)
1337  if (__ctype.narrow(*__beg, 0) != '%')
1338  {
1339  *__s = *__beg;
1340  ++__s;
1341  }
1342  else if (++__beg != __end)
1343  {
1344  char __format;
1345  char __mod = 0;
1346  const char __c = __ctype.narrow(*__beg, 0);
1347  if (__c != 'E' && __c != 'O')
1348  __format = __c;
1349  else if (++__beg != __end)
1350  {
1351  __mod = __c;
1352  __format = __ctype.narrow(*__beg, 0);
1353  }
1354  else
1355  break;
1356  __s = this->do_put(__s, __io, __fill, __tm, __format, __mod);
1357  }
1358  else
1359  break;
1360  return __s;
1361  }
1362 
1363  template<typename _CharT, typename _OutIter>
1364  _OutIter
1365  time_put<_CharT, _OutIter>::
1366  do_put(iter_type __s, ios_base& __io, char_type, const tm* __tm,
1367  char __format, char __mod) const
1368  {
1369  const locale& __loc = __io._M_getloc();
1370  ctype<_CharT> const& __ctype = use_facet<ctype<_CharT> >(__loc);
1371  __timepunct<_CharT> const& __tp = use_facet<__timepunct<_CharT> >(__loc);
1372 
1373  // NB: This size is arbitrary. Should this be a data member,
1374  // initialized at construction?
1375  const size_t __maxlen = 128;
1376  char_type __res[__maxlen];
1377 
1378  // NB: In IEE 1003.1-200x, and perhaps other locale models, it
1379  // is possible that the format character will be longer than one
1380  // character. Possibilities include 'E' or 'O' followed by a
1381  // format character: if __mod is not the default argument, assume
1382  // it's a valid modifier.
1383  char_type __fmt[4];
1384  __fmt[0] = __ctype.widen('%');
1385  if (!__mod)
1386  {
1387  __fmt[1] = __format;
1388  __fmt[2] = char_type();
1389  }
1390  else
1391  {
1392  __fmt[1] = __mod;
1393  __fmt[2] = __format;
1394  __fmt[3] = char_type();
1395  }
1396 
1397  __tp._M_put(__res, __maxlen, __fmt, __tm);
1398 
1399  // Write resulting, fully-formatted string to output iterator.
1400  return std::__write(__s, __res, char_traits<char_type>::length(__res));
1401  }
1402 
1403 
1404  // Inhibit implicit instantiations for required instantiations,
1405  // which are defined via explicit instantiations elsewhere.
1406 #if _GLIBCXX_EXTERN_TEMPLATE
1407  extern template class moneypunct<char, false>;
1408  extern template class moneypunct<char, true>;
1409  extern template class moneypunct_byname<char, false>;
1410  extern template class moneypunct_byname<char, true>;
1411  extern template class _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 money_get<char>;
1412  extern template class _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 money_put<char>;
1413  extern template class __timepunct<char>;
1414  extern template class time_put<char>;
1415  extern template class time_put_byname<char>;
1416  extern template class time_get<char>;
1417  extern template class time_get_byname<char>;
1418  extern template class messages<char>;
1419  extern template class messages_byname<char>;
1420 
1421  extern template
1422  const moneypunct<char, true>&
1423  use_facet<moneypunct<char, true> >(const locale&);
1424 
1425  extern template
1426  const moneypunct<char, false>&
1427  use_facet<moneypunct<char, false> >(const locale&);
1428 
1429  extern template
1430  const money_put<char>&
1431  use_facet<money_put<char> >(const locale&);
1432 
1433  extern template
1434  const money_get<char>&
1435  use_facet<money_get<char> >(const locale&);
1436 
1437  extern template
1438  const __timepunct<char>&
1439  use_facet<__timepunct<char> >(const locale&);
1440 
1441  extern template
1442  const time_put<char>&
1443  use_facet<time_put<char> >(const locale&);
1444 
1445  extern template
1446  const time_get<char>&
1447  use_facet<time_get<char> >(const locale&);
1448 
1449  extern template
1450  const messages<char>&
1451  use_facet<messages<char> >(const locale&);
1452 
1453  extern template
1454  bool
1455  has_facet<moneypunct<char> >(const locale&);
1456 
1457  extern template
1458  bool
1459  has_facet<money_put<char> >(const locale&);
1460 
1461  extern template
1462  bool
1463  has_facet<money_get<char> >(const locale&);
1464 
1465  extern template
1466  bool
1467  has_facet<__timepunct<char> >(const locale&);
1468 
1469  extern template
1470  bool
1471  has_facet<time_put<char> >(const locale&);
1472 
1473  extern template
1474  bool
1475  has_facet<time_get<char> >(const locale&);
1476 
1477  extern template
1478  bool
1479  has_facet<messages<char> >(const locale&);
1480 
1481 #ifdef _GLIBCXX_USE_WCHAR_T
1482  extern template class moneypunct<wchar_t, false>;
1483  extern template class moneypunct<wchar_t, true>;
1484  extern template class moneypunct_byname<wchar_t, false>;
1485  extern template class moneypunct_byname<wchar_t, true>;
1486  extern template class _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 money_get<wchar_t>;
1487  extern template class _GLIBCXX_NAMESPACE_LDBL_OR_CXX11 money_put<wchar_t>;
1488  extern template class __timepunct<wchar_t>;
1489  extern template class time_put<wchar_t>;
1490  extern template class time_put_byname<wchar_t>;
1491  extern template class time_get<wchar_t>;
1492  extern template class time_get_byname<wchar_t>;
1493  extern template class messages<wchar_t>;
1494  extern template class messages_byname<wchar_t>;
1495 
1496  extern template
1497  const moneypunct<wchar_t, true>&
1498  use_facet<moneypunct<wchar_t, true> >(const locale&);
1499 
1500  extern template
1501  const moneypunct<wchar_t, false>&
1502  use_facet<moneypunct<wchar_t, false> >(const locale&);
1503 
1504  extern template
1505  const money_put<wchar_t>&
1506  use_facet<money_put<wchar_t> >(const locale&);
1507 
1508  extern template
1509  const money_get<wchar_t>&
1510  use_facet<money_get<wchar_t> >(const locale&);
1511 
1512  extern template
1513  const __timepunct<wchar_t>&
1514  use_facet<__timepunct<wchar_t> >(const locale&);
1515 
1516  extern template
1517  const time_put<wchar_t>&
1518  use_facet<time_put<wchar_t> >(const locale&);
1519 
1520  extern template
1521  const time_get<wchar_t>&
1522  use_facet<time_get<wchar_t> >(const locale&);
1523 
1524  extern template
1525  const messages<wchar_t>&
1526  use_facet<messages<wchar_t> >(const locale&);
1527 
1528  extern template
1529  bool
1530  has_facet<moneypunct<wchar_t> >(const locale&);
1531 
1532  extern template
1533  bool
1534  has_facet<money_put<wchar_t> >(const locale&);
1535 
1536  extern template
1537  bool
1538  has_facet<money_get<wchar_t> >(const locale&);
1539 
1540  extern template
1541  bool
1542  has_facet<__timepunct<wchar_t> >(const locale&);
1543 
1544  extern template
1545  bool
1546  has_facet<time_put<wchar_t> >(const locale&);
1547 
1548  extern template
1549  bool
1550  has_facet<time_get<wchar_t> >(const locale&);
1551 
1552  extern template
1553  bool
1554  has_facet<messages<wchar_t> >(const locale&);
1555 #endif
1556 #endif
1557 
1558 _GLIBCXX_END_NAMESPACE_VERSION
1559 } // namespace std
1560 
1561 #endif
std::ios_base::getloc
locale getloc() const
Locale access.
Definition: ios_base.h:793
std::time_get
Primary class template time_get.
Definition: locale_facets_nonio.h:369
std::moneypunct
Primary class template moneypunct.
Definition: locale_facets_nonio.h:1025
std::__ctype_abstract_base::tolower
char_type tolower(char_type __c) const
Convert to lowercase.
Definition: locale_facets.h:264
std::messages_byname
class messages_byname [22.2.7.2].
Definition: locale_facets_nonio.h:2000
std::time_get::char_type
_CharT char_type
Public typedefs.
Definition: locale_facets_nonio.h:374
std::ios_base::adjustfield
static const fmtflags adjustfield
A mask of left|right|internal. Useful for the 2-arg form of setf.
Definition: ios_base.h:396
std::ios_base::fmtflags
_Ios_Fmtflags fmtflags
This is a bitmask type.
Definition: ios_base.h:341
std::time_put
Primary class template time_put.
Definition: locale_facets_nonio.h:798
std::__ctype_abstract_base::is
bool is(mask __m, char_type __c) const
Test char_type classification.
Definition: locale_facets.h:172
std::ios_base::goodbit
static const iostate goodbit
Indicates all is well.
Definition: ios_base.h:431
std::time_get::do_get
iter_type do_get(iter_type __s, iter_type __end, ios_base &__f, ios_base::iostate &__err, tm *__tm, char __format, char __modifier) const
Parse input string according to format.
Definition: locale_facets_nonio.tcc:1298
std::ios_base::eofbit
static const iostate eofbit
Indicates that an input operation reached the end of an input sequence.
Definition: ios_base.h:423
std
ISO C++ entities toplevel namespace is std.
std::basic_string< _CharT >
std::time_get::do_get_date
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.
Definition: locale_facets_nonio.tcc:1134
std::money_get
Primary class template money_get.
Definition: locale_facets_nonio.h:1469
std::ios_base::iostate
_Ios_Iostate iostate
This is a bitmask type.
Definition: ios_base.h:416
std::time_get::do_date_order
virtual dateorder do_date_order() const
Return preferred order of month, day, and year.
Definition: locale_facets_nonio.tcc:684
std::basic_string::resize
void resize(size_type __n, _CharT __c)
Resizes the string to the specified number of characters.
Definition: basic_string.tcc:1081
std::basic_string::c_str
const _CharT * c_str() const noexcept
Return const pointer to null-terminated contents.
Definition: basic_string.h:5242
std::moneypunct::id
static locale::id id
Numpunct facet id.
Definition: locale_facets_nonio.h:1043
std::min
constexpr const _Tp & min(const _Tp &, const _Tp &)
This does what you think it does.
Definition: stl_algobase.h:230
std::time_get_byname
class time_get_byname [22.2.5.2].
Definition: locale_facets_nonio.h:761
std::time_get::do_get_year
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.
Definition: locale_facets_nonio.tcc:1203
std::moneypunct_byname
class moneypunct_byname [22.2.6.4].
Definition: locale_facets_nonio.h:1415
std::ctype
Primary class template ctype facet.
Definition: locale_facets.h:616
std::time_get::do_get_monthname
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.
Definition: locale_facets_nonio.tcc:1177
std::time_put_byname
class time_put_byname [22.2.5.4].
Definition: locale_facets_nonio.h:894
std::time_put::do_put
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.
Definition: locale_facets_nonio.tcc:1366
std::ios_base::_M_getloc
const locale & _M_getloc() const
Locale access.
Definition: ios_base.h:804
std::__ctype_abstract_base::widen
char_type widen(char __c) const
Widen char to char_type.
Definition: locale_facets.h:296
std::__ctype_abstract_base::toupper
char_type toupper(char_type __c) const
Convert to uppercase.
Definition: locale_facets.h:235
std::messages
Primary class template messages.
Definition: locale_facets_nonio.h:1816
std::time_get::do_get_time
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.
Definition: locale_facets_nonio.tcc:1117
std::ios_base::left
static const fmtflags left
Adds fill characters on the right (final positions) of certain generated output. (I....
Definition: ios_base.h:362
std::ios_base::internal
static const fmtflags internal
Adds fill characters at a designated internal point in certain generated output, or identical to righ...
Definition: ios_base.h:358
std::char_traits
Basis for explicit traits specializations.
Definition: char_traits.h:311
std::time_get::do_get_weekday
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.
Definition: locale_facets_nonio.tcc:1151
std::money_put::char_type
_CharT char_type
Public typedefs.
Definition: locale_facets_nonio.h:1634
std::money_put::do_put
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.
Definition: locale_facets_nonio.tcc:593
std::basic_string< char >::npos
static const size_type npos
Value returned by various member functions when they fail.
Definition: basic_string.h:3374
std::money_put
Primary class template money_put.
Definition: locale_facets_nonio.h:1630
std::money_get::do_get
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.
Definition: locale_facets_nonio.tcc:371
std::time_put::put
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.
Definition: locale_facets_nonio.tcc:1331
std::ios_base::showbase
static const fmtflags showbase
Generates a prefix indicating the numeric base of generated integer output.
Definition: ios_base.h:376
std::locale
Container class for localization functionality.
Definition: locale_classes.h:63
std::time_get::get
iter_type get(iter_type __s, iter_type __end, ios_base &__io, ios_base::iostate &__err, tm *__tm, char __format, char __modifier=0) const
Parse input string according to format.
Definition: locale_facets_nonio.h:559
std::time_put::char_type
_CharT char_type
Public typedefs.
Definition: locale_facets_nonio.h:803
std::ios_base::failbit
static const iostate failbit
Indicates that an input operation failed to read the expected characters, or that an output operation...
Definition: ios_base.h:428
std::__ctype_abstract_base::narrow
char narrow(char_type __c, char __dfault) const
Narrow char_type to char.
Definition: locale_facets.h:334
std::ios_base
The base of the I/O class hierarchy.
Definition: ios_base.h:229