1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
|
// Locale support -*- C++ -*-
// Copyright (C) 2014-2017 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
//
// ISO C++ 14882: 22.1 Locales
//
// This file defines classes that behave like the standard predefined locale
// facets (collate, money_get etc.) except that they forward all virtual
// functions to another facet which uses a different std::string ABI,
// converting between string types as needed.
// When a user replaces one of the relevant facets the corresponding shim in
// this file is used so that the replacement facet can be used (via the shim)
// in code that uses the other std::string ABI from the replacing code.
#ifndef _GLIBCXX_USE_CXX11_ABI
# define _GLIBCXX_USE_CXX11_ABI 1
#endif
#include <locale>
#if ! _GLIBCXX_USE_DUAL_ABI
# error This file should not be compiled for this configuration.
#endif
namespace std _GLIBCXX_VISIBILITY(default)
{
_GLIBCXX_BEGIN_NAMESPACE_VERSION
// Base class of facet shims, holds a reference to the underlying facet
// that the shim forwards to.
class locale::facet::__shim
{
public:
const facet* _M_get() const { return _M_facet; }
__shim(const __shim&) = delete;
__shim& operator=(const __shim&) = delete;
protected:
explicit
__shim(const facet* __f) : _M_facet(__f) { __f->_M_add_reference(); }
~__shim() { _M_facet->_M_remove_reference(); }
private:
const facet* _M_facet;
};
namespace __facet_shims
{
namespace // unnamed
{
template<typename C>
void __destroy_string(void* p)
{
static_cast<std::basic_string<C>*>(p)->~basic_string();
}
} // namespace
// Manages a buffer of uninitialized memory that can store a std::string
// or std::wstring, using either ABI, and convert to the other ABI.
class __any_string
{
struct __attribute__((may_alias)) __str_rep
{
union {
const void* _M_p;
char* _M_pc;
#ifdef _GLIBCXX_USE_WCHAR_T
wchar_t* _M_pwc;
#endif
};
size_t _M_len;
char _M_unused[16];
operator const char*() const { return _M_pc; }
#ifdef _GLIBCXX_USE_WCHAR_T
operator const wchar_t*() const { return _M_pwc; }
#endif
};
union {
__str_rep _M_str;
char _M_bytes[sizeof(__str_rep)];
};
using __dtor_func = void(*)(void*);
__dtor_func _M_dtor = nullptr;
#if _GLIBCXX_USE_CXX11_ABI
// SSO strings overlay the entire __str_rep structure.
static_assert(sizeof(std::string) == sizeof(__str_rep),
"std::string changed size!");
#else
// COW strings overlay just the pointer, the length is stored manually.
static_assert(sizeof(std::string) == sizeof(__str_rep::_M_p),
"std::string changed size!");
#endif
# ifdef _GLIBCXX_USE_WCHAR_T
static_assert(sizeof(std::wstring) == sizeof(std::string),
"std::wstring and std::string are different sizes!");
# endif
public:
__any_string() = default;
~__any_string() { if (_M_dtor) _M_dtor(_M_bytes); }
__any_string(const __any_string&) = delete;
__any_string& operator=(const __any_string&) = delete;
// Store a string (and its length if needed) in the buffer and
// set _M_dtor to the function that runs the right destructor.
template<typename C>
__any_string&
operator=(const basic_string<C>& s)
{
if (_M_dtor)
_M_dtor(_M_bytes);
::new(_M_bytes) basic_string<C>(s);
#if ! _GLIBCXX_USE_CXX11_ABI
_M_str._M_len = s.length();
#endif
_M_dtor = __destroy_string<C>;
return *this;
}
// Create a new string with a copy of the characters in the stored string.
// The returned object will match the caller's string ABI, even when the
// stored string doesn't.
template<typename C>
_GLIBCXX_DEFAULT_ABI_TAG
operator basic_string<C>() const
{
if (!_M_dtor)
__throw_logic_error("uninitialized __any_string");
return basic_string<C>(static_cast<const C*>(_M_str), _M_str._M_len);
}
};
// This file is compiled twice, with and without this macro defined.
// Define tag types to distinguish between the two cases and to allow
// overloading on the tag.
using current_abi = __bool_constant<_GLIBCXX_USE_CXX11_ABI>;
using other_abi = __bool_constant<!_GLIBCXX_USE_CXX11_ABI>;
using facet = locale::facet;
// Declare the functions that shims defined in this file will call to
// perform work in the context of the other ABI.
// These will be defined when this file is recompiled for the other ABI
// (at which point what is now "current_abi" will become "other_abi").
template<typename C>
void
__numpunct_fill_cache(other_abi, const facet*, __numpunct_cache<C>*);
template<typename C>
int
__collate_compare(other_abi, const facet*, const C*, const C*,
const C*, const C*);
template<typename C>
void
__collate_transform(other_abi, const facet*, __any_string&,
const C*, const C*);
template<typename C>
time_base::dateorder
__time_get_dateorder(other_abi, const facet* f);
template<typename C>
istreambuf_iterator<C>
__time_get(other_abi, const facet* f,
istreambuf_iterator<C> beg, istreambuf_iterator<C> end,
ios_base& io, ios_base::iostate& err, tm* t, char which);
template<typename C, bool Intl>
void
__moneypunct_fill_cache(other_abi, const facet*,
__moneypunct_cache<C, Intl>*);
template<typename C>
istreambuf_iterator<C>
__money_get(other_abi, const facet*,
istreambuf_iterator<C>, istreambuf_iterator<C>,
bool, ios_base&, ios_base::iostate&,
long double*, __any_string*);
template<typename C>
ostreambuf_iterator<C>
__money_put(other_abi, const facet*, ostreambuf_iterator<C>, bool,
ios_base&, C, long double, const __any_string*);
template<typename C>
messages_base::catalog
__messages_open(other_abi, const facet*, const char*, size_t,
const locale&);
template<typename C>
void
__messages_get(other_abi, const facet*, __any_string&,
messages_base::catalog, int, int, const C*, size_t);
template<typename C>
void
__messages_close(other_abi, const facet*, messages_base::catalog);
namespace // unnamed
{
struct __shim_accessor : facet
{
using facet::__shim; // Redeclare protected member as public.
};
using __shim = __shim_accessor::__shim;
template<typename _CharT>
struct numpunct_shim : std::numpunct<_CharT>, __shim
{
typedef typename numpunct<_CharT>::__cache_type __cache_type;
// f must point to a type derived from numpunct<C>[abi:other]
numpunct_shim(const facet* f, __cache_type* c = new __cache_type)
: std::numpunct<_CharT>(c), __shim(f), _M_cache(c)
{
__numpunct_fill_cache(other_abi{}, f, c);
}
~numpunct_shim()
{
// Stop GNU locale's ~numpunct() from freeing the cached string.
_M_cache->_M_grouping_size = 0;
}
// No need to override any virtual functions, the base definitions
// will return the cached data.
__cache_type* _M_cache;
};
template<typename _CharT>
struct collate_shim : std::collate<_CharT>, __shim
{
typedef basic_string<_CharT> string_type;
// f must point to a type derived from collate<C>[abi:other]
collate_shim(const facet* f) : __shim(f) { }
virtual int
do_compare(const _CharT* lo1, const _CharT* hi1,
const _CharT* lo2, const _CharT* hi2) const
{
return __collate_compare(other_abi{}, _M_get(),
lo1, hi1, lo2, hi2);
}
virtual string_type
do_transform(const _CharT* lo, const _CharT* hi) const
{
__any_string st;
__collate_transform(other_abi{}, _M_get(), st, lo, hi);
return st;
}
};
template<typename _CharT>
struct time_get_shim : std::time_get<_CharT>, __shim
{
typedef typename std::time_get<_CharT>::iter_type iter_type;
typedef typename std::time_get<_CharT>::char_type char_type;
// f must point to a type derived from time_get<C>[abi:other]
time_get_shim(const facet* f) : __shim(f) { }
virtual time_base::dateorder
do_date_order() const
{ return __time_get_dateorder<_CharT>(other_abi{}, _M_get()); }
virtual iter_type
do_get_time(iter_type beg, iter_type end, ios_base& io,
ios_base::iostate& err, tm* t) const
{
return __time_get(other_abi{}, _M_get(), beg, end, io, err, t,
't');
}
virtual iter_type
do_get_date(iter_type beg, iter_type end, ios_base& io,
ios_base::iostate& err, tm* t) const
{
return __time_get(other_abi{}, _M_get(), beg, end, io, err, t,
'd');
}
virtual iter_type
do_get_weekday(iter_type beg, iter_type end, ios_base& io,
ios_base::iostate& err, tm* t) const
{
return __time_get(other_abi{}, _M_get(), beg, end, io, err, t,
'w');
}
virtual iter_type
do_get_monthname(iter_type beg, iter_type end, ios_base& io,
ios_base::iostate& err, tm* t) const
{
return __time_get(other_abi{}, _M_get(), beg, end, io, err, t,
'm');
}
virtual iter_type
do_get_year(iter_type beg, iter_type end, ios_base& io,
ios_base::iostate& err, tm* t) const
{
return __time_get(other_abi{}, _M_get(), beg, end, io, err, t,
'y');
}
};
template<typename _CharT, bool _Intl>
struct moneypunct_shim : std::moneypunct<_CharT, _Intl>, __shim
{
typedef typename moneypunct<_CharT, _Intl>::__cache_type __cache_type;
// f must point to a type derived from moneypunct<C>[abi:other]
moneypunct_shim(const facet* f, __cache_type* c = new __cache_type)
: std::moneypunct<_CharT, _Intl>(c), __shim(f), _M_cache(c)
{
__moneypunct_fill_cache(other_abi{}, f, c);
}
~moneypunct_shim()
{
// Stop GNU locale's ~moneypunct() from freeing the cached strings.
_M_cache->_M_grouping_size = 0;
_M_cache->_M_curr_symbol_size = 0;
_M_cache->_M_positive_sign_size = 0;
_M_cache->_M_negative_sign_size = 0;
}
// No need to override any virtual functions, the base definitions
// will return the cached data.
__cache_type* _M_cache;
};
template<typename _CharT>
struct money_get_shim : std::money_get<_CharT>, __shim
{
typedef typename std::money_get<_CharT>::iter_type iter_type;
typedef typename std::money_get<_CharT>::char_type char_type;
typedef typename std::money_get<_CharT>::string_type string_type;
// f must point to a type derived from money_get<C>[abi:other]
money_get_shim(const facet* f) : __shim(f) { }
virtual iter_type
do_get(iter_type s, iter_type end, bool intl, ios_base& io,
ios_base::iostate& err, long double& units) const
{
ios_base::iostate err2 = ios_base::goodbit;
long double units2;
s = __money_get(other_abi{}, _M_get(), s, end, intl, io, err2,
&units2, nullptr);
if (err2 == ios_base::goodbit)
units = units2;
else
err = err2;
return s;
}
virtual iter_type
do_get(iter_type s, iter_type end, bool intl, ios_base& io,
ios_base::iostate& err, string_type& digits) const
{
__any_string st;
ios_base::iostate err2 = ios_base::goodbit;
s = __money_get(other_abi{}, _M_get(), s, end, intl, io, err2,
nullptr, &st);
if (err2 == ios_base::goodbit)
digits = st;
else
err = err2;
return s;
}
};
template<typename _CharT>
struct money_put_shim : std::money_put<_CharT>, __shim
{
typedef typename std::money_put<_CharT>::iter_type iter_type;
typedef typename std::money_put<_CharT>::char_type char_type;
typedef typename std::money_put<_CharT>::string_type string_type;
// f must point to a type derived from money_put<C>[abi:other]
money_put_shim(const facet* f) : __shim(f) { }
virtual iter_type
do_put(iter_type s, bool intl, ios_base& io,
char_type fill, long double units) const
{
return __money_put(other_abi{}, _M_get(), s, intl, io, fill, units,
nullptr);
}
virtual iter_type
do_put(iter_type s, bool intl, ios_base& io,
char_type fill, const string_type& digits) const
{
__any_string st;
st = digits;
return __money_put(other_abi{}, _M_get(), s, intl, io, fill, 0.L,
&st);
}
};
template<typename _CharT>
struct messages_shim : std::messages<_CharT>, __shim
{
typedef messages_base::catalog catalog;
typedef basic_string<_CharT> string_type;
// f must point to a type derived from messages<C>[abi:other]
messages_shim(const facet* f) : __shim(f) { }
virtual catalog
do_open(const basic_string<char>& s, const locale& l) const
{
return __messages_open<_CharT>(other_abi{}, _M_get(),
s.c_str(), s.size(), l);
}
virtual string_type
do_get(catalog c, int set, int msgid, const string_type& dfault) const
{
__any_string st;
__messages_get(other_abi{}, _M_get(), st, c, set, msgid,
dfault.c_str(), dfault.size());
return st;
}
virtual void
do_close(catalog c) const
{
__messages_close<_CharT>(other_abi{}, _M_get(), c);
}
};
template class numpunct_shim<char>;
template class collate_shim<char>;
template class moneypunct_shim<char, true>;
template class moneypunct_shim<char, false>;
template class money_get_shim<char>;
template class money_put_shim<char>;
template class messages_shim<char>;
#ifdef _GLIBCXX_USE_WCHAR_T
template class numpunct_shim<wchar_t>;
template class collate_shim<wchar_t>;
template class moneypunct_shim<wchar_t, true>;
template class moneypunct_shim<wchar_t, false>;
template class money_get_shim<wchar_t>;
template class money_put_shim<wchar_t>;
template class messages_shim<wchar_t>;
#endif
template<typename C>
inline size_t
__copy(const C*& dest, const basic_string<C>& s)
{
auto len = s.length();
C* p = new C[len+1];
s.copy(p, len);
p[len] = '\0';
dest = p;
return len;
}
} // namespace
// Now define and instantiate the functions that will be called by the
// shim facets defined when this file is recompiled for the other ABI.
// Cache the values returned by the numpunct facet f.
// Sets c->_M_allocated so that the __numpunct_cache destructor will
// delete[] the strings allocated by this function.
template<typename C>
void
__numpunct_fill_cache(current_abi, const facet* f, __numpunct_cache<C>* c)
{
auto* m = static_cast<const numpunct<C>*>(f);
c->_M_decimal_point = m->decimal_point();
c->_M_thousands_sep = m->thousands_sep();
c->_M_grouping = nullptr;
c->_M_truename = nullptr;
c->_M_falsename = nullptr;
// set _M_allocated so that if any allocation fails the previously
// allocated strings will be deleted in ~__numpunct_cache()
c->_M_allocated = true;
c->_M_grouping_size = __copy(c->_M_grouping, m->grouping());
c->_M_truename_size = __copy(c->_M_truename, m->truename());
c->_M_falsename_size = __copy(c->_M_falsename, m->falsename());
}
template void
__numpunct_fill_cache(current_abi, const facet*, __numpunct_cache<char>*);
#ifdef _GLIBCXX_USE_WCHAR_T
template void
__numpunct_fill_cache(current_abi, const facet*, __numpunct_cache<wchar_t>*);
#endif
template<typename C>
int
__collate_compare(current_abi, const facet* f, const C* lo1, const C* hi1,
const C* lo2, const C* hi2)
{
return static_cast<const collate<C>*>(f)->compare(lo1, hi1, lo2, hi2);
}
template int
__collate_compare(current_abi, const facet*, const char*, const char*,
const char*, const char*);
#ifdef _GLIBCXX_USE_WCHAR_T
template int
__collate_compare(current_abi, const facet*, const wchar_t*, const wchar_t*,
const wchar_t*, const wchar_t*);
#endif
template<typename C>
void
__collate_transform(current_abi, const facet* f, __any_string& st,
const C* __lo, const C* __hi)
{
auto* c = static_cast<const collate<C>*>(f);
st = c->transform(__lo, __hi);
}
template void
__collate_transform(current_abi, const facet*, __any_string&,
const char*, const char*);
#ifdef _GLIBCXX_USE_WCHAR_T
template void
__collate_transform(current_abi, const facet*, __any_string&,
const wchar_t*, const wchar_t*);
#endif
// Cache the values returned by the moneypunct facet, f.
// Sets c->_M_allocated so that the __moneypunct_cache destructor will
// delete[] the strings allocated by this function.
template<typename C, bool Intl>
void
__moneypunct_fill_cache(current_abi, const facet* f,
__moneypunct_cache<C, Intl>* c)
{
auto* m = static_cast<const moneypunct<C, Intl>*>(f);
c->_M_decimal_point = m->decimal_point();
c->_M_thousands_sep = m->thousands_sep();
c->_M_frac_digits = m->frac_digits();
c->_M_grouping = nullptr;
c->_M_curr_symbol = nullptr;
c->_M_positive_sign = nullptr;
c->_M_negative_sign = nullptr;
// Set _M_allocated so that if any allocation fails the previously
// allocated strings will be deleted in ~__moneypunct_cache().
c->_M_allocated = true;
c->_M_grouping_size = __copy(c->_M_grouping, m->grouping());
c->_M_curr_symbol_size = __copy(c->_M_curr_symbol, m->curr_symbol());
c->_M_positive_sign_size
= __copy(c->_M_positive_sign, m->positive_sign());
c->_M_negative_sign_size
= __copy(c->_M_negative_sign, m->negative_sign());
c->_M_pos_format = m->pos_format();
c->_M_neg_format = m->neg_format();
}
template void
__moneypunct_fill_cache(current_abi, const facet*,
__moneypunct_cache<char, true>*);
template void
__moneypunct_fill_cache(current_abi, const facet*,
__moneypunct_cache<char, false>*);
#ifdef _GLIBCXX_USE_WCHAR_T
template void
__moneypunct_fill_cache(current_abi, const facet*,
__moneypunct_cache<wchar_t, true>*);
template void
__moneypunct_fill_cache(current_abi, const facet*,
__moneypunct_cache<wchar_t, false>*);
#endif
template<typename C>
messages_base::catalog
__messages_open(current_abi, const facet* f, const char* s, size_t n,
const locale& l)
{
auto* m = static_cast<const messages<C>*>(f);
string str(s, n);
return m->open(str, l);
}
template messages_base::catalog
__messages_open<char>(current_abi, const facet*, const char*, size_t,
const locale&);
#ifdef _GLIBCXX_USE_WCHAR_T
template messages_base::catalog
__messages_open<wchar_t>(current_abi, const facet*, const char*, size_t,
const locale&);
#endif
template<typename C>
void
__messages_get(current_abi, const facet* f, __any_string& st,
messages_base::catalog c, int set, int msgid,
const C* s, size_t n)
{
auto* m = static_cast<const messages<C>*>(f);
st = m->get(c, set, msgid, basic_string<C>(s, n));
}
template void
__messages_get(current_abi, const facet*, __any_string&,
messages_base::catalog, int, int, const char*, size_t);
#ifdef _GLIBCXX_USE_WCHAR_T
template void
__messages_get(current_abi, const facet*, __any_string&,
messages_base::catalog, int, int, const wchar_t*, size_t);
#endif
template<typename C>
void
__messages_close(current_abi, const facet* f, messages_base::catalog c)
{
static_cast<const messages<C>*>(f)->close(c);
}
template void
__messages_close<char>(current_abi, const facet*, messages_base::catalog c);
#ifdef _GLIBCXX_USE_WCHAR_T
template void
__messages_close<wchar_t>(current_abi, const facet*,
messages_base::catalog c);
#endif
template<typename C>
time_base::dateorder
__time_get_dateorder(current_abi, const facet* f)
{ return static_cast<const time_get<C>*>(f)->date_order(); }
template time_base::dateorder
__time_get_dateorder<char>(current_abi, const facet*);
#ifdef _GLIBCXX_USE_WCHAR_T
template time_base::dateorder
__time_get_dateorder<wchar_t>(current_abi, const facet*);
#endif
template<typename C>
istreambuf_iterator<C>
__time_get(current_abi, const facet* f,
istreambuf_iterator<C> beg, istreambuf_iterator<C> end,
ios_base& io, ios_base::iostate& err, tm* t, char which)
{
auto* g = static_cast<const time_get<C>*>(f);
switch(which)
{
case 't':
return g->get_time(beg, end, io, err, t);
case 'd':
return g->get_date(beg, end, io, err, t);
case 'w':
return g->get_weekday(beg, end, io, err, t);
case 'm':
return g->get_monthname(beg, end, io, err, t);
case 'y':
return g->get_year(beg, end, io, err, t);
default:
__builtin_unreachable();
}
}
template istreambuf_iterator<char>
__time_get(current_abi, const facet*,
istreambuf_iterator<char>, istreambuf_iterator<char>,
ios_base&, ios_base::iostate&, tm*, char);
#ifdef _GLIBCXX_USE_WCHAR_T
template istreambuf_iterator<wchar_t>
__time_get(current_abi, const facet*,
istreambuf_iterator<wchar_t>, istreambuf_iterator<wchar_t>,
ios_base&, ios_base::iostate&, tm*, char);
#endif
template<typename C>
istreambuf_iterator<C>
__money_get(current_abi, const facet* f,
istreambuf_iterator<C> s, istreambuf_iterator<C> end,
bool intl, ios_base& str, ios_base::iostate& err,
long double* units, __any_string* digits)
{
auto* m = static_cast<const money_get<C>*>(f);
if (units)
return m->get(s, end, intl, str, err, *units);
basic_string<C> digits2;
s = m->get(s, end, intl, str, err, digits2);
if (err == ios_base::goodbit)
*digits = digits2;
return s;
}
template istreambuf_iterator<char>
__money_get(current_abi, const facet*,
istreambuf_iterator<char>, istreambuf_iterator<char>,
bool, ios_base&, ios_base::iostate&,
long double*, __any_string*);
#ifdef _GLIBCXX_USE_WCHAR_T
template istreambuf_iterator<wchar_t>
__money_get(current_abi, const facet*,
istreambuf_iterator<wchar_t>, istreambuf_iterator<wchar_t>,
bool, ios_base&, ios_base::iostate&,
long double*, __any_string*);
#endif
template<typename C>
ostreambuf_iterator<C>
__money_put(current_abi, const facet* f, ostreambuf_iterator<C> s,
bool intl, ios_base& io, C fill, long double units,
const __any_string* digits)
{
auto* m = static_cast<const money_put<C>*>(f);
if (digits)
return m->put(s, intl, io, fill, *digits);
else
return m->put(s, intl, io, fill, units);
}
template ostreambuf_iterator<char>
__money_put(current_abi, const facet*, ostreambuf_iterator<char>,
bool, ios_base&, char, long double, const __any_string*);
#ifdef _GLIBCXX_USE_WCHAR_T
template ostreambuf_iterator<wchar_t>
__money_put(current_abi, const facet*, ostreambuf_iterator<wchar_t>,
bool, ios_base&, wchar_t, long double, const __any_string*);
#endif
} // namespace __facet_shims
// Create a new shim facet of type WHICH that forwards calls to F.
// F is the replacement facet provided by the user, WHICH is the ID of
// F's "other ABI twin" which we are replacing with a shim.
const locale::facet*
#if _GLIBCXX_USE_CXX11_ABI
locale::facet::_M_sso_shim(const locale::id* which) const
#else
locale::facet::_M_cow_shim(const locale::id* which) const
#endif
{
using namespace __facet_shims;
#if __cpp_rtti
// If this is already a shim just use its underlying facet.
if (auto* p = dynamic_cast<const __shim*>(this))
return p->_M_get();
#endif
if (which == &numpunct<char>::id)
return new numpunct_shim<char>{this};
if (which == &std::collate<char>::id)
return new collate_shim<char>{this};
if (which == &time_get<char>::id)
return new time_get_shim<char>{this};
if (which == &money_get<char>::id)
return new money_get_shim<char>{this};
if (which == &money_put<char>::id)
return new money_put_shim<char>{this};
if (which == &moneypunct<char, true>::id)
return new moneypunct_shim<char, true>{this};
if (which == &moneypunct<char, false>::id)
return new moneypunct_shim<char, false>{this};
if (which == &std::messages<char>::id)
return new messages_shim<char>{this};
#ifdef _GLIBCXX_USE_WCHAR_T
if (which == &numpunct<wchar_t>::id)
return new numpunct_shim<wchar_t>{this};
if (which == &std::collate<wchar_t>::id)
return new collate_shim<wchar_t>{this};
if (which == &time_get<wchar_t>::id)
return new time_get_shim<wchar_t>{this};
if (which == &money_get<wchar_t>::id)
return new money_get_shim<wchar_t>{this};
if (which == &money_put<wchar_t>::id)
return new money_put_shim<wchar_t>{this};
if (which == &moneypunct<wchar_t, true>::id)
return new moneypunct_shim<wchar_t, true>{this};
if (which == &moneypunct<wchar_t, false>::id)
return new moneypunct_shim<wchar_t, false>{this};
if (which == &std::messages<wchar_t>::id)
return new messages_shim<wchar_t>{this};
#endif
__throw_logic_error("cannot create shim for unknown locale::facet");
}
_GLIBCXX_END_NAMESPACE_VERSION
} // namespace std
|